Roof & Exterior SoftWashing in Kent, Sussex, Surrey 5 Year Spot Free Warranty on Roofs

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When You Want to Ask Questions About Roof Cleaning, Take a Look Below, Hopefully These Will Answer Many of Your Questions

How Much Does Roof Cleaning Cost in 2022? How much does it cost to wash a roof? How much does it cost to soft clean a roof? How much does it cost to clean a roof UK? Average cost of moss removal from roof UK. roof moss removal cost UK. roof cleaning cost per square metre. how much does roof cleaning cost near ashford

How Much Does it Cost to Clean Your Roof?

When calculating the price to soft wash a roof, we have to consider numerous factors to arrive at the figure.

Firstly, the size of the roof. A larger roof will take longer to clean than one that is half its size in comparable circumstances.

Secondly, the level of infestation. A roof that is infested with moss will require more effort to clean than one which has less moss to remove. Disposal of large quantities of moss from the property will inevitably add to the price.

Thirdly, access. Can our technicians achieve adequate access to all areas of the roof to clean it thoroughly? Properties with plenty of surrounding space for our access equipment will require less time to complete, resulting in a lower price.

Fourthly, the specialist equipment, ongoing staff training, specialist cleaning solutions, and insurances required to provide a service that is far above and beyond the expectations of even the most discerning customers.

Your quotation takes all of these factors into consideration, as well as our unique ability to offer a fully-underwritten 5-year warranty in most cases.

As an example, a small 2-bedroom bungalow with adequate access and a low moss infestation could be from £1,500 whereas heavy moss infestation and poor access cost easily double the price. A large 5-bedroom detached house could be £4,000 upwards.

In summary; the key factors affecting price are size, roof type, ease of access and location, and level of infestation.

Our mission; ‘To provide the most phenomenal service experience ever’ is more than just a few buzzwords; it’s our mindset. Our ethos. We’re thrilled every time a customer leaves us a 5-star review on Google, but also ask ourselves how we could improve upon it.

How Long Does It Take To Clean A Roof?


That’s a very good question, and there’s no simple answer. There are many factors that determine how long it takes to clean your roof. Lots of questions must be answered first.

How long does it take to clean a roof UK? How long does roof cleaning take? How long does roof cleaning take UK? Does roof cleaning need scaffolding?

First and foremost, how big is your roof? And how dirty is it? How much moss is on there? What type of dirt is on there? Is there staining, algae, and lichen? This all needs to be considered when cleaning the roof because we want to make it as clean as possible and get rid of everything we can.

What is the roof’s surface area? What type of property is it and how large is it? What pitch is the roof? What type of tiles are used? These all play a part in how long it takes to clean your roof, along with the method to be used.

The tools and type of access equipment that can be used and whether it can be cleaned from the ground, from ladders, or whether a scaffold tower or a cherry picker is needed. Can the whole roof be reached from at once or will the access equipment need to be repositioned? These factors all need to be worked out to know how long it will take to clean your roof.

The weather can also play a part. Obviously, we’re human beings and we’re working outdoors to clean your roof. Adverse weather can slow the process a lot; even with all the equipment and access you could wish for.

When cleaning a roof, it’s impossible not to make a mess, and it takes time to clean up. This shouldn’t be underestimated. Make sure the company that cleans your roof have considered this.

You also need to consider the neighbouring properties. Make sure – when cleaning – that you clean up the mess on the property and surrounding properties; the areas that that have been affected by the fallout.

An average three-bedroom house with a moderately mossy roof can take three to four hours if there is good access for cherry picker. Then add two more hours to clean up the mess that has fallen from the roof.

We would expect to clean the roof of such a property and clear up afterwards within a day. That’s assuming the factors mentioned above are favourable.

Anything bigger, messier, or with poorer access would take longer.


Soft washing

Soft washing is a relatively gentle, low-pressure method that uses a chemical solution to kill and detach organic matter from a building’s exterior surfaces. It is widely considered to be a highly effective method of cleaning a roof without the need for technicians to stand on the roof as long as they can get within a few feet of the surface via a scaffold tower or mobile lifting platform. The low-pressure application of soft wash chemicals greatly reduces the likelihood of the roof incurring damage during the cleaning process or water ingress into the property. The soft washing process kills all organic matter and, provided it is undertaken by competent technicians, will leave treated areas spotless, sanitised, and last for a long time.

Soft Washing requires extensive training along with highly specialised equipment and chemicals to produce long-lasting, high-quality results. Access to the areas to be soft washed can be problematic in confined spaces as the solutions need to be sprayed from a few feet away rather than in close proximity to the surface.

Care must be taken to prevent soft wash solutions from entering drains or falling onto landscaped areas or gardens without immediate counter treatment to prevent



Scraping is a method of moss removal widely used to remove the most visible organic growth from a roof. In many cases, it can be undertaken from the ground with the aid of an extending pole system. A metal blade shaped to suit the roof’s tiles attached to a pole is used to scrape moss and other debris from the surface. It is an effective method of removing heavy moss growth and – provided the gutters are cleared immediately after scraping – can reduce the likelihood of gutters becoming blocked.

The equipment required is minimal and inexpensive and can be undertaken with little experience or training. Scraping a roof can give immediate visual results but these are often short-lived because the roots of the organic growth are not removed by this process. This can promote the regrowth of moss to a greater degree than before – similar to pruning a bush in the autumn to promote strong regrowth in the spring.

The process of scraping a roof can disturb tiles and pointing; particularly as it is often undertaken by unskilled individuals from quite a distance away, making it impossible to clearly see any issues or damage.


Pressure washing

Pressure washing can be a highly effective method of cleaning all kinds of surfaces and many homeowners will already have their own pressure washer for car washing etc., making them familiar with the principle. Water is projected under high pressure towards the surface in question in order to remove the dirt, moss, lichen, and other debris. Pressure washing can yield visually compelling results with little experience or expertise from the operator.

The use of high-pressure water to clean a roof carries the inherent risk of water ingress to the structure beneath. Water being forced ‘uphill’ on a roof will be forced beneath tiles and into the timber battens, felt, rafters and purlins. A greater risk associated with pressure washing is that the pressure is often so harsh that it can damage and crack roof tiles and remove vital mortar pointing.
Pressure washing can produce visually pleasing results but it is highly unlikely to remove all of the organic matter; causing faster and more prolific regrowth in a relatively short timeframe.


Steam Cleaning

Steam Cleaning can be used in some circumstances to clean roofs but it is more widely used by cleaning specialists to clean stonework and certain types of cladding. Specialist steam cleaning equipment, given the nature of steam at high pressure, can be extremely dangerous in untrained hands or if the equipment is poorly maintained.

High-pressure steam presents risks to the structure which are similar to those of pressure washing; high pressure and steam can remove mortar pointing, crack tiles and cause other damage, although it is more likely to kill all of the organic material and slow down regrowth.



Access to a roof for the purpose of cleaning should only be undertaken by trained individuals with the correct equipment. Roofs can be slippery and in most cases, it is illegal for operatives to stand upon a roof. The widely accepted best practice method of accessing a roof for the purpose of cleaning is via a mobile platform (also known as a ‘Cherry Pickers’) or with mobile scaffold towers.

Homeowners should make themselves aware of their liability in such circumstances and ensure any companies or individuals they enlist to clean their roof (or any other exterior surface) are adequately insured and has the correct equipment and training to do so.

What is SoftWashing

Soft washing is a relatively gentle, low-pressure method of exterior cleaning which uses a chemical solution to kill and detach organic matter from a building’s exterior surfaces.

It is widely considered to be a highly effective method of cleaning a roof without the need for technicians to stand on the roof if they can get within a few feet of the surface via a scaffold tower or mobile lifting platform.

The low-pressure application of soft wash chemicals greatly reduces the likelihood of the roof incurring damage during the cleaning process or water ingress into the property. The soft washing process kills all organic matter and, provided it is undertaken by competent technicians, will leave treated areas spotless, sanitised, and last for a long time.

What is SoftWashing?

Soft washing is an alternative to pressure/power washing that does not use damaging high pressure. Soft washing thoroughly cleans up surface areas and kills the bacteria that are the root reason of discoloration on roofing systems and also other structure surfaces.

How Do I Know Soft Washing Works?

Soft Washing was developed in Florida USA over 30 years ago. It has been used in theme parks such as Disney and Universal Studios for many years. Over 100,000 roofs worldwide have benefitted from Soft Wash Systems equipment, training and chemicals.

Why is Soft Washing Better Than Pressure Washing?

Soft washing eradicates the microorganisms that cause staining, whereas pressure washing simply cleans off the surface layer. Additionally, soft washing does not use harmful high pressure, unlike pressure washing, and soft washing treatments last far longer compared to high powered pressure washing.

Why is it Important to Kill Micro Organisms?

Micro organisms such as mould, algae, lichen, and bacteria’s are responsible for most staining on roofing systems and also other surfaces. Additionally, by products of the metabolic rate of these organisms are acidic, which could be damaging to the surface areas. Killing off these bacteria prevents re-growth and gives longevity to the service.

Is Soft Washing Really Safe?

Yes, when carried out by fully trained professionals who have soft wash equipment specially designed to do the work safely.

The cleaning solutions used in our SoftWash System are 100% biodegradable as well as have really low VOC’s (volatile organic compounds) emissions. Our cleaning services are non-toxic and also will not release any unsafe chemicals into the area surrounding your property.

Is SoftWashing Safe for my Plants, Children and Pets?

Specific plant and property protection training has been completed and protective measures are part of our everyday operating procedures!  People, plants and pets remain safe!  All of our solutions are eco-friendly and bio-degradable. We ask that pets and their families stay in doors until the job is complete. Certainly we understand people need to come and go. This is accomplished with just a little coordination in the work area. Pets are free to go outside once the job is complete and the work site is cleaned up.

Employees are trained to do everything within their power to protect plant and property! We pre-wet all nearby plants and vegetation as a precaution, then continue as needed during the cleaning and treatment just to be extra protective to your plant beds. We take plant protection one step further and apply a proprietary plant wash containing plant nutrients, a chemical neutraliser and apply to all nearby plants and vegetation as an added precaution once the job is complete! This plant wash and rinse is specially formulated to mitigate any potential concerns. Some customers say this is the first time in a long time their plants have been fertilised, watered and treated so well!

Professionally trained and competent SoftWash companies will take every possible precaution to ensure that your landscaping and personnel property are protected and remain in the same condition or better than when we arrived at your site.

Is Soft Washing Environmentally Friendly?

Soft Washing is far more environmentally friendly than pressure/power washing, for the following reasons:

  • Every one of our cleaning solutions are 100% naturally biodegradable.
  • Our cleansing services have extremely low VOCs.
  • We only use 1/3 the water of pressure washing.
  • Our cleanings last four to six times longer than pressure washing, so cleaning is not required as frequently.
  • Our SoftWash Systems cleanings preserve materials, such as roof tiles, render, conserving consumers’ money, and creating less waste in landfills brought on by debris connected with roofing, walls, fence, and deck replacement.

Many people will assume that the only thing the surveyor will inspect is the size and condition of your roof. The is completely understandable, but there are other factors to assess as well.

When a surveyor comes to view your property for roof cleaning purposes, one of the first things they will look at is the ground around your property, to identify anything which may affect how the roof can be accessed and formulate a plan to overcome any obstacles safely and without causing any damage.

It’s worth repeating that – in the UK – it is against the law for roof cleaning technicians to walk upon your roof. As such, a method of accessing the roof safely from the ground must be achieved. Scaffold towers and ‘cherry pickers’ often provide the best access, and they can be moved quickly and easily.

After determining accessibility around the property, the surveyor then needs to investigate the mains water supply to the property. Without and outside tap or similar water supply, cleaning is going to be a long and slow process. The flow rate of water from the supply also needs to be measured.

A low flow rate around 7 litres per minute is going to be inadequate and the surveyor may need to consider other methods of achieving an adequate water supply, which could have an impact on the quotation. A flow rate of 15 litres per minute should be perfectly adequate.

Now to the roof itself. The surveyor will need to check the roof for any damage, any loose or cracked tiles, and determine the level of moss infestation is on the roof. We tend to use a scale of 1-5 for assessing moss infestation; ‘1’ being a very low infestation which will be relatively straightforward to remove and rejuvenate and ‘5’ being a complete ‘carpet’ of thick moss covering the entire roof.

A score of 5 often means the moss growth is so thick and comprehensive that the surveyor cannot adequately determine the condition of the roof itself. In such cases, we would advise the homeowner to prepare to replace the roof rather than provide a quote for cleaning it.

Another factor worth considering is that on roofs we score at around a 3 out of 5, we often remove well over a tonne of moss, even on medium-sized roofs. We find Hippo Bags (which are readily available from DIY stores) are the most convenient way of containing and disposing of such a large volume of moss.

Your surveyor should also assess access to the property in terms of how close the roof cleaning team can park their vehicles and whether any overhead telephone lines or overhanging tress are going to affect access and whether an alternative method access can be achieved.

Once the roof has been inspected and the volume of moss on the roof has been determined, the next step is to measure the roof’s total area which will determine the cost of having the roof cleaned.

You should expect. written quotation – the surveyor will have measured the square footage of the roof, assessed the volume of moss and other debris on it and arrived at a price so that you can decide whether you would like to proceed with that company and their quotation or not.

Some companies will provide an instant quotation while they are still on site, others may send it to you via email or post afterwards. Both are fine, but make sure you have the quotation in writing before proceeding further. It is certainly advisable not to go ahead on the basis of a verbal quote as – all too easily – things can change after the price is agreed; extras you may not have been aware of or that the surveyor forgot to mention may get added to the final price.

The quotation should include the cost of cleaning itself, the clearing up afterwards and of course, removal and proper disposal of waste.

How Long Does it Take to Clean a Roof?


Moss, lichens and mould have to go somewhere…

The volume of moss and other debris which can be removed from a roof is often quite surprising. Removing a tonne of moss and other debris from a single house’s roof is not uncommon at all. Such a large volume cannot simply be left on the ground and mist be swept up and removed from the site. Any specialist exterior cleaning company will consider this as part of the job and leave the site tidy as a matter of course.

Is soft washing safe for children and pets?


It is advisable to stay indoors and keep pets indoors during the soft washing process but as soon as the cleaning process is complete, everything can return to normal. Plenty of water, fertiliser, and a neutralising solution is applied to garden areas in the proximity of the clean and, in most cases, your garden will actually benefit from this treatment.

How Long Does Roof Cleaning Last?

You may be asking yourself, is roof cleaning a good fit for our home?

That’s a great question, and a very important one too, because this type of decision won’t be reversible once you have the roof cleaned.

Like any type of home improvement service, roof cleaning has its pros and cons.

For example, because the professional soft wash roof cleaners of today, do such a thorough job of treating and cleaning your roof, it will stay clean for a long time.

Usually for 5 years.

Which is great if you love a clean looking roof. Not so great if you prefer the mossy older fashioned look.

Also consider, do you have enough space for a roof cleaner to put up a scaffold tower or use a cherry picker to safely access your roof.

You will definitely need a driveway to park at least two vehicles on whilst the roof cleaning work is being completed for you.

You will also need an outside tap, which is used to fill up the Soft Washing Tanks on the roof cleaners van.

If you have lots of overhead power lines going to your home, then it might not be possible to get your roof cleaned safely.

The professional roof cleaner will not walk on your roof.

If you want to pay a low cost company to get up onto your roof, and pressure blast it, you need to ask yourself, are you prepared to accept the consequences should something go wrong?

Terrace home roof cleaning is not usually a good idea. Unless the whole row gets cleaned at the same time. This is because it will make the roofs look different from each other.

When you have thick carpets of moss growing all over the roof tiles, you may have left it too late to clean. This is because tiles could be damaged and moss could be growing underneath the tiles. Roof replacement could be required instead.



SoftWash Systems® 5-Year Spot-Free Limited Warranty


SoftWash Systems® in-network professional will provide the service of a full roof cleaning (no partial cleanings will be warrantied) necessary to maintain a spot-free absence of dark moulds and mildews from the client’s roof for a period of 12 months from the original date of cleaning. For years 2 through 5, The SoftWash Systems® in-network professional will treat whole or in part any areas of recurring dark moulds or mildews with the contractor paying the first 50% of the original quoted price, and the property owner paying a prorated amount of 50%, before discounts. An entire retreatment will be prorated against the original quoted retail price of the roof cleaning from the original date of cleaning. Smaller areas of staining, less than 25% of the total area of the roof, will be Pro-rated from the current hourly charge for service.

Courtesy Treatments

The SoftWash Systems® in-network professional reserves the right to courtesy treat small insignificant areas at the customer’s request at a time preferable to The SoftWash Systems® in-network professional’s scheduling. The SoftWash Systems® in-network professional also reserves the right to discontinue any and all courtesy treatments.


This warranty covers shingle, concrete tile, clay tile, slate, asbestos and composite roofs that are of the proper pitch with no water pooling on the roofs surface. SoftWash Systems® roof cleaning process is safe for your roof. If any damage is caused to your roof by our personnel, or our process or the chemicals in our process, The SoftWash Systems® in-network professional will repair or replace your roof, at its option. Furthermore, if SoftWash Systems® process and/or chemicals void the manufacturer’s warranties on your roof, the SoftWash Systems® in-network professional will repair or replace your roof in accordance with the terms and conditions of the roofing manufacturer’s warranty.

This warranty does not cover new or replacement roofing not originally treated by the SoftWash System®, areas under or around roof-mounted apparatus or Force Majeure determined by local area. It is the customer’s responsibility to keep the roof free from debris, as well as tree limbs trimmed away at least eight feet from the roof surface. Green Mustard Algae is not covered for retreatment.

This spot-free limited warranty is transferable to the new owner of the property.

You must notify us straight away if you see any mould growth appearing on your pitched roof. The best number to call is 01233 550100.  You can also email [email protected] – please give us as much information as possible – PR Ref number on your quote/invoice form. Address and pictures if possible.

In most cases we will send out a surveyor to assess the situation who will then  organise with our operations department, the re treatment of the roof area which has been affected, quickly.

What is the difference between price and cost?

Zig Ziglar was an American Author, at our organisation we love reading his books and just finished reading Secrets of Closing The Sale 

The part I loved the most in the book was the section about the price versus cost discussion.

We all have to make decisions everyday on items or services we are going to buy.

Price is  a one time agreement, right at the initial purchasing decision. The cost is the long-term quality for the entirety of the agreement, including upgrades, repairs, improvements, etc.

Zig provided the example of buying a bike at a price of $64 vs a $34 bike. They bought the $34 bike but it cost them much more over time to repair, making the cost much higher than the $64 bike. Seeing that difference brought me a ton of clarity on the true intentions and hesitations of a buyer.

My takeaway; If you are concerned about price, think deeper and  see if that true worry is about price or if it’s really about cost (value long term).

When choosing a service, long term value could outweigh the low price considerably.

Payment Options.

We accept cash, cheque, bank transfer, Debit, Visa, Master Card and AMEX.

Interest Free Payment Plans

Many home owners prefer to spread out the cost of home improvements over 6 months. Our monthly plan is as follows;

30% deposit at the time of booking in the work. Followed by 5 equal monthly payments.

Please discuss this with our team when booking in your free home visit.

Do Roof Cleaners Climb And Stand On The Roofs?

No. In the UK, roof cleaners must never climb on pitched roofs. Doing so is proven to be particularly dangerous and exposes the roof surface to possible damage.

To avoid this, a Mobile Elevated Working Platform (MEWP) more commonly referred to as a ‘cherry picker’ or scaffold tower can be used. This allows technicians to safely work from above the roof, accessing all areas to ensure a comprehensive clean and treatment.

Do You Ever Advise Customers Against Having Their Roof Cleaned?

Yes. Surprisingly often.

Particularly where a roof has been left for too long before being cleaned and the organic growth has compromised the structural integrity of the roof’s tiles and potentially damaged the structure beneath. In such instances, the only option to the homeowner is to enlist the services of a roofing contractor to repair or replace the entire roof.

An experienced specialist exterior cleaning company will only undertake a project if they are confident their work will make an improvement to the appearance and/or lifespan of the area to be cleaned and treated. If a surveyor believes the roof cannot be adequately cleaned and treated, they should advise the homeowner of the best course of action to take, even if it really isn’t the news the homeowner wants to hear.

Probably not

Providing we can get clear safe access to all points of the property and a water supply, you can leave us to get on with it so you could go to work, do the school run or do a bit of shopping and return to a clean environment.

Yes, we can.

Purple Rhino SoftWash understands that certain cleaning needs may apply, such as touching up only the front visible roof to increase the curb appeal for a home for sale.  But it is highly recommended to avoid a partial cleaning and treatment.

Any un-treated sections most likely already have bacteria and algae spores you cannot see. These spores will travel to the treated roof sections and expedite contamination and re-growth. Therefore we do not offer the 5-year “spot free” limited warranty on partial cleanings and treatments.

Incidentally, our 5-year “spot free” limited warranty is transferable if a home is sold.


Our Safe Roof & Exterior Cleaning SoftWash System’s proven process and cleaning solutions are guaranteed to remove ugly black streaks from your roof on the day of cleaning and treatment. Purple Rhino’s Soft Wash process kills 100% of bacteria, algae, moss, and lichen.

Our 3-in-1 safe roof and exterior cleaning process cleans the roof and inhibits regrowth. We are so confident in our process and methods that we provide a “Spot Free” 5-year limited warranty with every complete roof cleaning.

A great question asked by many homeowners and property managers throughout Kent and the United Kingdom.

Most houses, apartments differ in size. Which will determine the time it takes to treat the rendered walls. What type of render has been applied to the walls? K-Rend, Weber, Monocouche and Ecorend are different brands of through coloured render. They come in all colour shades. Each one needs to be treated with a soft wash mixture differently.

Companies who clean render, must understand the type of render to ensure they treat and clean the infestation, which is growing on it, properly.

Height will also play a factor in how much it will cost. Can the render safely be cleaned from the ground, or will specialist access equipment be needed?

Smaller houses can be treated, using a soft wash mixture, and left clean from £850. Larger more complex houses can be from £850 to £4,000.

Apartment buildings, three stories and above will incur access costs, the use of a MEWP (aka Cherry Picker) is often a cheaper way compared to expensive scaffolding. Extremely high buildings may need abseilers to repel down the sides of the property to treat the mould, mildews, and lichens. Apartment buildings can be between £4,000 and £200,000 depending on several factors, such as height, overall size and amounts of infestation which has been allowed to grow over the years.

The best option is to arrange for a free site visit so the surveyor can determine what is needed to complete the work safely and to everyone’s satisfaction.


You should also consider why has the render become infested with organic matter stains. What type of organic matter is growing on your render? Is it Trentophilia (reddish in colour) Cyanobacteria (greenish or blueish in colour)?

Why did it appear in the first place?

It could be that the North facing elevations have been affected by mould growth the worst. This is due to less amount of daylight hours reaching that wall.

You may have a field next to the property.

Overflowing gutters, with water cascading down the façade when it rains.

Trees overhanging the property.

A good surveyor will advise accordingly how best to slow down any potential regrowth.

Pressure Washing is often the first method which comes to mind for many people, when they are considering cleaning outside rendered walls.

It is no surprise, because pressure washing has been around for a hundred years and most of us know what a pressure washer looks like and what it does.

However, on render you should NEVER use a pressure washer.

Firstly, it can easily blow holes through the render. Or create deep scars into the surfaces, leaving you with a potentially high repair bill.

Secondly, if you do not damage the render, at best you will have given the organic matter growth a simple haircut. It will just grow back quicker and thicker than before.

Instead, you must kill off the organic matter using proven methods and equipment designed to do the work safely.

Soft Washing is the answer to clean rendered walls perfectly.

Soft washing uses carefully mixed bleach, surfactants and water.

Cleaning the render with bleach will ensure that all organic matter spores are dead and therefore cannot regrow. Any future growth will be new.

Bleach and the myths behind its use.

Many people are scared of the word bleach. This is understandable because many other chemical manufacturers have demonised it to promote their own, often very expensive products, over many years.

The simple truth is, bleach kills all known germs, dead. Many homeowners use bleach every day at 5% strength, they pour it down their toilets and drains. They buy it from supermarkets.

Bleach biodegrades back into salt and water within 20 days (yes bleach is made from salt and water) of being introduced to the environment.

When applying bleach aka Sodium Hypochlorite to a rendered wall you must be able to dilute it correctly with water and add in specially manufactured surfactants to ensure dwell time. This ensures the roots have been killed off. It also has anti-microbial properties which ensure long lasting results.

The best equipment for safely mixing the three required ingredients, bleach, soap and water is a Soft Wash System. These are made in Orlando, USA and used in the UK by a few companies who have invested not only a considerable amount of money to buy them, but they have invested heavily in training on how to use the equipment safely.

Most rendered walls in the UK can be cleaned using bleach at just 2% strength. When mixed carefully with Green Wash, which has been designed to mix safely with bleach, you can expect long lasting results.

A soft wash system costs between £30,000 and £50,000 and therefore not many contractors can afford to buy this equipment, to use in their business.

Soft Washing has become a word used throughout the cleaning industry and is misunderstood by contractors and homeowners alike. Quite simply, if they do not have a Soft Wash system, they are usually cutting corners and trying to make money without first obtaining the knowledge required to serve you best.

There are many Facebook threads and cleaning forums which have, window cleaners, pressure washing contractors and other cleaning company owners discussing how to clean render with bleach. The advice they are receiving is often very dangerous. Many of them believe mixing a 15% strength sodium hypochlorite with water at 50/50 will be safe to use. They are wrong.

The mix would be TOO STRONG and when mixed with fairy liquid, extremely dangerous to health.

You can easily find a SoftWash Professional in your area here


Purple Rhino SoftWash employees have completed certification training through SoftWash Systems, attended SoftWash hands-on seminars, and attend yearly SoftWash training events to stay current on all techniques, methods, and SoftWash application methods.  Purple Rhino SoftWash carries a £1 Million Commercial Liability Policy for your added protection and peace of mind.


Our SoftWash process provides fantastic results on vinyl siding, hardy siding, painted surfaces, playgrounds, pool decks, pavements, canopy tents, and just about all other exterior surfaces. SoftWash cleans and brightens without the abrasive damage of a pressure washer!

So please give us a call to discuss other exterior surfaces.

Can soft washing chemicals damage the paintwork on my car?

Some of the chemicals used in the soft washing process may be harmful to vehicle paintwork. Alternatively, it may be viable to create a barrier or cover with plastic sheeting to prevent debris from falling on to vehicles or other items and divert it to a convenient location for disposal.

Do Roof Cleaners Climb And Stand On The Roofs?

No. In the UK, roof cleaners must never climb on pitched roofs. Doing so is proven to be particularly dangerous and exposes the roof surface to possible damage.

To avoid this, a Mobile Elevated Working Platform (MEWP) more commonly referred to as a ‘cherry picker’ or scaffold tower can be used. This allows technicians to safely work from above the roof, accessing all areas to ensure a comprehensive clean and treatment.

Soft washing is far gentler on masony, roofing materials and exterior finishes

A professional soft wash cleaning system is designed to apply cleaning solutions at 45 -50 psi, from about 6 feet away. That’s similar garden hose or a hard rainfall.

Soft washing equipment is so-called because it washes softly. Yet very effectively.

We use Softwash Systems’ Cleaning and Treatment Process

All Purple Rhino SoftWash technicians are trained to use the premier SoftWash Systems cleaning and treatment process, involving the use of professional grade, low-pressure applications of the proprietary SoftWash Systems Cleaning Solution.

Each exterior surface to be treated is analysed to determine the best course of treatment.

We will not use a pressure washer around your property.


Anything made of limestone, such as concrete, cement and roof tiles are food for all types of organic matter!

Untreated roofs may lose up to 50% of the expected roof shingle life cycle. The black streaks (bacteria) are eating the limestone in the shingle and causing erosion. Roof bacteria, moss, lichen and algae all cause granular loss from shingles. The bacteria weaken the shingle, the fibre root systems moss and lichen cause discoloration, and can cause small cracks in shingles. The resulting damage will lesson the life cycle of the roof. Granular loss also reduces reflection of the suns UV rays and protection from the elements.

The earlier your roof is cleaned and treated the better!

Soft washing completely removes bacteria, algae, moss and lichen from your roof which can extend its lifespan.

While other methods of roof cleaning may be cheaper, they are unable to remove 100% of this organic matter; giving long-lasting results. This is why Purple Rhino chose soft washing as our primary cleaning method.

What makes Purple Rhino different?


Purple Rhino SoftWash is devoted to providing its customers the highest level of quality, value, professionalism, and customer service.

We will treat you, your home, and your property with respect and as if it were our own. We will not rush to complete a job, or cut corners to save time. Purple Rhino prides itself on spending as much time as necessary to ensure that a high level of value is provided and your 100% level of satisfaction is achieved.

We’re a family-run business based in Ashford that has taken training courses around the world with the industry leaders and as a result, we are fully industry-standard accredited so you know you are going to get the best results.

Our Employees are Trained & Certified in Exterior Hard Surface Sanitising Procedures.

Our SoftWash equipment has always sanitised exterior surfaces whilst we clean your home or business. This is why we are so different from other exterior cleaning companies.

We provide safe, proven SoftWash methods, utilise professional-grade equipment, use exclusively low-pressure, safe roof & exterior cleaning SoftWash methods, and non-damaging, eco-friendly, bio-degradable cleaning solutions for your exterior home cleaning needs. We are trained specialists in the cleaning and treatment of roofs and sidings.

Don’t take our word for it, see what our customers say by reading our reviews.

Roof & Exterior Cleaning in;

Kent, Surrey, East & West Sussex

Milton Keynes

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Your buildings will
look brand new