Roof cleaning

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Roof cleaning

Most people don’t think about getting their roof cleaned, but it’s actually a very important maintenance task. Getting your roof cleaned prevents build up of moss, algae and corrosive residue that can damage your roof, whether it’s flat or pitched, and whatever material it’s made from.

Roof cleaners generally pressure wash your roof, but if that’s not suitable they will use a soft washing process. There are plenty of benefits to having your roof cleaned:

  • Exposes damage before it’s irreparable: Your roof cleaner may show up damage that was covered by dirt and debris, so you can deal with it before it becomes such a problem that you have to replace your roof.
  • Removes seeds, twigs and leaves: Debris can work its way under your tiles or shingles, so when it’s windy or stormy it can curl under them. It’s more likely you’ll lose tiles or shingles in bad weather if there are twigs under them already.
  • Extends the lifespan of your roof: Pollution from car exhausts, soot and acid rain can all attack tiles or shingles, and small pieces could erode and end up in your gutters. Getting your roof cleaned will prevent the corrosion process from happening as quickly.
  • Removes algae: If you have asphalt or limestone shingles, algae can eat away at them, making them thin and brittle and reducing their insulating properties.

Most roofs will be able to withstand a gentle pressure wash, but if your contractor deems it necessary they will recommend a soft wash approach. It will probably look like the cleaner is using a pressure washer, but it will have a much lower impact on your roof surface so it won’t cause any damage.

Will getting my roof cleaned save me money?

In the long term, having your roof cleaned will certainly save you money. By keeping your roof free of debris, moss and algae, you’ll prevent the roof tiles, shingle or flat roof material from breaking down as quickly. Full or even partial roof replacement doesn’t come cheap, so it’s best to extend the lifespan of your roof for as long as possible.

Average Roof cleaning cost

The common cost of Roof cleaning is £1850. Costs fluctuate based upon the materials and the business selected. The upper price range can be as high as £2220. The material costs are quite often about £50. The bulk of the cost is the Labour time to do the work.

Average price per Roof cleaning job in 2021

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Prices based on actual Roof cleaning costs for your area, as reported by local Quotatis members.

Roof cleaning installation cost in your area 2021

Labour cost £1,750
Material cost £50
Waste removal £50
Time frame: 1 day

Advantages for Roof cleaning

  • Give the whole house a fresh new look
  • Clears weeds and moss which may cause damage to the roof if left
  • Once cleaned over the next few days as the moss dies off the roof will get brighter

Disadvantages for Roof cleaning

  • Specialist cleaning tools require to complete it safely

Roof cleaning FAQs

How to clean a fibreglass roof?

How To Clean A Fibreglass Roof?

If you have a dirty fibreglass roof or perhaps you’re just planning to have one installed on a newly constructed house, then you’d probably want to know the best way to have your fibreglass roof cleaned.

Generally, fibreglass roofs are of great quality and happens to be a lot more resistant to moisture, heat, water and even fire when compared to the other alternative flat roofing materials. As a result, they require just a little maintenance but this doesn’t mean they should be totally ignored. Truth be told, cleaning of a fibreglass roof is as easy as it get, however, when it comes to working at height, skill and confidence is paramount to guarantee your safety. If you lack any of these two qualities, then it’s highly recommended that you sought the services of a reliable roof cleaning contractor who can do the work safely and perfectly. If you’re able to clean and maintain your fibreglass roof as you should, you wouldn’t have to think about replacement for about 20 to 30 years.

Cleaning is simple and doesn’t take much time. Now let’s take a look at the process.

✓ Preparation. Hose down the vegetation around the area with water to protect them. Once done, mix a gallon of warm water with one quarter cup trisodium phosphate and 1 quart of bleach. Put this mixture into a garden sprayer and sweep any dirt or debris off the roof with a broom.

✓ Application. Spray the mixture over the fibreglass roof, ensuring that it gets to all the necessary corners where dirt may be hidden. Allow this applied solution to sit for up to 15 minutes to loosen the stubborn stains and dirts on the roof.

✓ Finishing. Spray cold water to wash down all the solutions. If there’s still some dirts, you can repeat the process till the fibreglass roof is entirely clean.

How to clean algae off roof shingles?

How To Clean Algae Off Roof Shingles

Stains and dirt on asphalt shingles can only make your entire house look shabby which can go a long way to hide away the true value of your building. In some cases, dirts and stains on asphalt roofing shingles are nothing more than a cosmetic issue. However, there are also times in which it goes far beyond this - when the stains are indicators of a problem that if ignored, can result in a serious roof damage and ultimately, roof failure. In most cases, it’s usually hard to distinguish these stains and hence, the more reason why your asphalt roofing shingles should be regularly cleaned and maintained. In this article, we’re going to look at how you can get rid of algae of your roof shingles.

Algae growth on roof usually have either blue, green or black stains. They normally begin with little spots which will develop into streaks overtime. These stains are mostly mistaken for moss or mildew and aren’t harmful to any other thing than the roof shingles. However, the look it gives the entire house is something nobody enjoys.

It should be noted that this is a task that deals with working at height and requires skills and confidence to pull off. If you lack any of these qualities, simply reach out to a professional for help.

✓ Safety first. Put on protective clothing.

✓ Apply a bleach solution with a garden sprayer and let it sit for up to 20 minutes

✓ Rinse the roof thereafter with the stream from the hose (do not use a pressure washer as it can damage the roof shingles)

✓ If there are still algae left after rinsing with water, you can make use of a brush with medium-stiff bristles to gently scrub the stains off. If some stains are still left, simply let the roof dry before repeating the process again.

How much does it cost to have roof cleaned?

How Much Does It Cost To Have Roof Cleaned?

If your roof is dirty, it’s highly recommended that you have it cleaned by a reliable and professional roof cleaning contractor who specializes in cleaning of all types of roofs rather than making it a DIY project or hiring an odd job man who is a jack of all trades. This is due to fact that major mistakes like incorporating inappropriate cleaning agents, pressure as well as wrong cleaning techniques can have a serious negative impact on your home while also putting in mind the several dangers that comes with working at height. However, when hiring a professional roof cleaning person or company, do make sure that the cleaner is fully insured, possesses the relevant training working at height and has the ability to operate access machinery. In other words, when it comes to roof cleaning where safety is the first priority, it shouldn’t always be about the price of the job but the quality of the service you’re going to receive.

There are several variables that determines the cost of cleaning a roof and these includes both the type of the roof in question as well as the size of the house. Let’s take a look!

✓ For a small semi detached or terraced house with a standard front and rear elevation with no side hips, the average cost of cleaning the roof usually starts from £390 and above.

✓ For a semi detached or detached house which is a free standing residential building, the average cost of cleaning the roof usually starts from £490 and above.

✓ For a averaged sized detached house which is a stand alone property, the average cost of cleaning the roof usually starts from £590 and above.

✓ For a large detached house featuring several additional roofs including a porch, double garage and even an extension, the average cost of cleaning the roof usually starts from £790 and above.

How to clean roof tiles?

How To Clean Roof Tiles?

If you’re a DIY person with a dirty roof tiles or just a homeowner who’s also a lover of knowledge, you may probably like to know how you can have your roof tiles cleaned. This is a very common question which often depends on the dirt or debris you’re dealing with as well as the type of roof you possess. Most often than not, if you own a traditional concrete or slate roof tiles, then you’re more likely to battle moss and or algae growth.

If you’re not a competent DIY person or do not have enough confidence to pull this off, then it’s advisable to hire the services of a professional who can guarantee the best results for help. In this article, you’ll learn how to go about cleaning your roof tiles. Let’s have a look!

✓ Consider Safety. When it comes to roof cleaning, you have to be very careful. They’re normally high up and any task that deals with height will usually require putting safety measures in place. Firstly, it’s important to be confident with heights and ladders, if not you’d have to find someone who is. And if you’re confident, there’s also the need to find someone who can help you hold the base of the ladder.

✓ Trim the trees. Nearby trees are usually a threat to any roof and also makes cleaning much harder. So it’s always wise to cut any overhanging branches before you proceed.

✓ Bleach or not to bleach. Although you have to be very careful using beach and water but it also happens to be one of the easiest DIY ways to clean your roof. You either stand about 4 feet away and rely on water pressure or clean down the tiles by hand.

✓ Try not to make use of a blaster.

How to clean and maintain metal roofs?

How To Clean And Maintain Metal Roofs

If you already have a metal roof or just planning to get one, you’d probably be interested in knowing the cleaning and maintenance procedures. Although, metal roof are widely known to be very easy to clean and maintain and also very durable and long lasting, it’s still strongly recommended that homeowners should do all in their power clean and to take care of their metal roof in order to ensure it they live up to their potentials. Cleaning your metal roofs regularly helps to minimize damaging element such as airborne dirt, pollen, organic material debris, pollution, mildew and lots more. If left unattended to, these unwanted elements can result in several negative issues over time as such as chalking. Due to fact that metal roofs normally features special coatings as well as paint, cleaning the roof is both easy and environmentally friendly, which removes the need to use toxic chemicals. With just plain water, you can effectively wash down dirt, dust and other debris from your metal roof.

While the cleaning process is quite simple, working at height can be incredibly dangerous. It requires skills and confidence, so if you lack either of these qualities, it’s advisable to call in a professional roof cleaning contractor for help. Below is a simple cleaning solution usful for most metal roofs.

✓ In the event whereby water alone isn’t enough, make a cleaning solution using a quarter cup detergent ( which should include car washing soap, mild laundry detergent, mild dish soap) for each gallon of water.

✓ Apply the mixture to the surface of the roof with a wash cloth and ensure to the application gently.

✓ After application, allow it sit for up to 15mins.

✓ Rinse the roof surface with plain water.

How to clean a roof?

How To Clean A Roof?

If you’re planning to clean your roof, but don’t know where to start, you’ve come to the right place! There are different types of roofs available in the market today and the method used in cleaning one can be largely different from the other. As a result, we’re only going to look at one of the common types of roofs you’ll find in the UK - the Asphalt shingle roof tiles. This roof type is very common and for a good reason. Not only are they visually appealing but they’re also hugely versatile by design which enables them to be adaptable to varying shapes, angles as well as forms depending on your preference or needs. With all the benefits that can be derived from asphalt shingle, they however, need to be properly maintained to help retain their good looks.

To clean your asphalt shingles, you’ll most likely require some type of chemicals especially when dealing with algae stains and some other visual problems. Therefore, make sure you purchase a product marked safe to be used on this type of roof and not those only proven to remove moss and algae stains. Mix the chemical cleaner with a gallon of water and a quart of bleach or as instructed by the manufacturer. Pour the mixture inside a pump-style garden sprayer and mix thoroughly. When done, climb up on the roof and spray as good as you can. Upon completion of spraying the roof with the mixture, then allow to work its magic for some time - about 15 minutes or thereabout should be good.

After that, you can make use of a garden hose to spray down the roof and wash down the mixture entirely. If some stains remain, use a brush to gently wipe the tiles individually.

How to clean moss off roof?

How To Clean Moss Off Roof?

Although moss attack on your roof is a less common occurrence, but when they occur they can be very harmful to your asphalt shingles if not attended to. Generally, moss are commonly found in damp environments such as the North slopes, overhanging treses or overhanging regions of the roof which causes shade which enables moisture to be stagnant and moss to develop. If you observe a green fuzzy stuff appearing on your roof, that’s likely to be moss.

The same way algae navigated its way to your roof as they can be airborne and travel via wind, squirrels, birds or other little flying or climbing animals, moss also gets carried similarly. One moss finds its way up your roof, they’ll find spaces between the shingles where they’ll form thick spongy moss which can be difficult to clean off if you don’t know the best way to go about it.

If you’re not a competent DIYer or confident enough to carry out this task, we’d strongly recommend you hire the services of a professional who can guarantee the best results effortlessly.

The best way to go about the cleaning task for both your roof and environment is to incorporate a product called Spray and Forget or Wet and Forget. You can get these at most local hardware stores. Simply put the product into a hose end sprayer and can be applied from the ladder at the edge of the gutter or even from the ground. This method may take a up to 6 months before you’ll start seeing the results but it happens to be the safest. Another method that can be used is bleach and water which is very aggressive but provides a quicker result. However, this is best done by a professional to avoid seriously damaging your roof.

How to clean roof lights?

How To Clean Roof Lights

If you have existing roof lights or perhaps you’re about to have them installed, it’s important to know just how to have them cleaned, even if you wouldn’t be doing it yourself. Generally, glass roof lights fitted in flat roof applications are more likely to be a major victim of staining and discolouration by several elements like rainwater, bird droppings, vehicle exhaust pollutants as well as tree sap. Therefore, just like any other parts of your home, periodic inspection of the units as well as regular cleaning is highly advised to help maintain their top performance for a lengthy period of time.

Firstly, when installing the roof lights, it’ll be helpful if its fitted at the right pitch so as to help keep the exterior clean as it enables the elements such as rainwater to run off the surface naturally. Cleaning roof lights involves working at height which can be very dangerous. Therefore, if you lack the skill and confidence to pull this off, it’s advisable to hire the services of a professional who can guarantee the best results for help. In this article, we aim to give you a good insight into how the roof light cleaning process works. Let’s have a look!

Rooflight Interior Cleaning

✓ Spread plastic under the roof light to catch dirt and spills

✓ Dust to wipe clear all loose dirt and cobwebs.

✓ Use a squeegee with a warm soapy water or any other glass cleaning product to clean the glass ( steer clear of any harsh chemicals or abrasive cleaners)

✓ Dry the roof light with a soft and lint-free cloth.

Rooflight Exterior Cleaning

✓ Access the roof safely with a specialist ladder

✓ Put mild detergent into a bucket and carry up to the roof before filling with warm water from a hosepipe

✓ Use the soapy water and a non-abrasive cloth or squeegee to clean the roof light, its surroundings as well as fixings.


Based: in Denmead, PO7

Roofing & Guttering Solution Roof , Fascia , Soffit , Moss removal and roof cleaning, flat roof & ...

Latest review

John A., PO21
21st March 2021

Cleaning | Roof cleaning in Bognor Regis

Quote accepted and the very friendly workmen did a thorough moss removal and roof rep...


Based: in Wokingham, RG40

ifix is a reliable family run business. We have been in the roofing and building trade for over 20 ...

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Robert C., OX9
5th February 2021

Cleaning | Roof cleaning in Thame

An excellent job. Contractor kept me up to date with work progress. Lert site clean.


Based: in Stevenage, SG6


The services we provide at moss b gone is

Full moss removal
Roof cleaning
Sofit, fasci...

Latest review

Rebecca J., AL3
7th August 2020

Cleaning | Roof cleaning in St. Albans

Swift, friendly, helpful


Based: in Lochgelly, KY5

Welcome to New Carden Roofing:
New Carden Roofing is a small, family-run business with over 30 year...

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Lynn W., DD4
15th June 2020

Cleaning | Roof cleaning in Dundee

Very good job, the team were courteous professional and got on with the job took no t...

C&N Handyman Services

Based: in Saint helens, WA9

C&N Handyman Services is based in Saint helens and have 1 positive reviews

Latest review

Edward E., WA5
24th October 2019

Cleaning | Roof cleaning in Warrington

C&A Home Improvements did a good job clearing moss from the roof, jet washed my rear ...

Rated Local professionals


19 review(s)
Based: in Lochgelly, KY5 0LA

Welcome to New Carden Roofing: New Carden Roofing is a small, family-run business with over 30 years of experience in the roofing industry. No job is too big or too small for us. From flat roof installations to roughcasting repairs, we can do it all...


31 review(s)
Based: in Wokingham, RG40 3BS

ifix is a reliable family run business. We have been in the roofing and building trade for over 20 years. We always use quality materials from well kown manufacturers for all our roofing services for yearsof trouble free service and all our work ...


27 review(s)
Based: in Denmead, PO7 6JB

Roofing & Guttering Solution Roof , Fascia , Soffit , Moss removal and roof cleaning, flat roof & Gutter Cleaning and installation Specialists

C&N Handyman Services

1 review(s)
Based: in Saint helens, WA9 5AB

C&N Handyman Services based in Saint helens, offer services in Cleaning. They have an average rating of 5 from 1 review(s). See their latest 5 star review below


14 review(s)
Based: in Stevenage, SG6 2RH

Hi The services we provide at moss b gone is Full moss removal Roof cleaning Sofit, fascia and gutter clean Bicoide treatment We use no pressure washing, we professionally remove the moss with the correct equipment. We have been oper...

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