Roof cleaning is one of the most overlooked aspects of property maintenance in the UK. Moss, algae, and biological growth do not just make a roof look neglected; left untreated, they retain moisture, accelerate tile deterioration, block gutters, and shorten the lifespan of the entire roof covering. By the time most homeowners notice the problem, it has usually been developing for years.
At EBT Build, we provide professional roof cleaning services across the UK for residential and commercial properties. We cover soft wash cleaning, moss and algae removal, pressure washing, biocide treatment, roof tile sealing, conservatory roof cleaning, and gutter clearance. Every job is assessed individually, and the right cleaning method is selected based on the roof type and condition.
All work is carried out by our own team using safe and controlled methods that remove biological growth without damaging tiles, slate, or roof surfaces. Fixed pricing, no hidden costs, and a free survey before any commitment is made. Roof cleaning is often carried out alongside other roofing services to maintain the condition and performance of the entire roof structure.
Member of the National Federation of Roofing Contractors, the UK’s leading roofing trade body.
Government endorsed quality scheme for tradespeople working in and around the home.
Public & employer liability insurance in place for complete peace of mind.
Consistently rated for workmanship, reliability, and project management.
Delivering home refurbishment and roofing projects with controlled processes, certified trades, and accountable project management.
very roof cleaning job is handled as a complete service, not a quick wash. We assess the roof, choose the safest method, and complete the work with care and attention to detail.
The goal is long-term protection, not just a cleaner look.
Cleaning also helps prevent blockages in the drainage system, which is why regular guttering installation and maintenance work is important for proper water flow.
We provide everything needed to clean and protect your roof properly. From inspection to final checks, the process is smooth, planned, and disruption-free.
Our methods help reduce future moss growth and improve roof drainage without harming tiles or fixings. If the roof includes roof windows or natural lighting features, these areas may require careful cleaning or professional skylight installation checks.
Soft washing uses low pressure water combined with specialist cleaning solutions to remove moss, algae, lichen, and biological growth without damaging tiles or slate. It is the safest and most effective method for most residential roof types across the UK.
High pressure washing is used to remove heavy dirt, debris, and ingrained staining from concrete tiles and robust roof surfaces. We assess the roof covering before using pressure washing to ensure the method is appropriate for the material and condition of the tiles.
We carry out targeted moss and algae removal using manual and chemical methods depending on the extent of growth and the roof surface. Heavy moss coverage is removed carefully to avoid dislodging tiles or damaging the roof structure beneath.
Following cleaning, a biocide treatment is applied to the roof surface to kill remaining spores and prevent regrowth. A single biocide application significantly extends the period between cleans and protects the roof covering from future biological damage.
After cleaning, roof tiles can be sealed with a breathable protective coating that repels water, reduces moss and algae regrowth, and extends the lifespan of the roof covering. Sealing is recommended for older or more porous tile surfaces.
Roof cleaning is often carried out alongside gutter clearance to remove the debris, moss, and organic matter that washes down into gutters during and after the cleaning process. Clear gutters ensure proper drainage and prevent water backing up against the roof edge.
A roof cleaning job done incorrectly causes more damage than the moss or dirt it was meant to remove. High pressure washing on the wrong tile type strips the surface coating, forces water beneath the covering, and accelerates the very deterioration it was supposed to prevent. At EBT Build we assess the roof material and condition before selecting the cleaning method, because the right approach depends entirely on what is on your roof.
We have been carrying out roof cleaning and roofing maintenance work across the UK for over 10 years. Every job is carried out by trained roofers, not general labourers with a pressure washer, and every clean is followed by a full condition report so you know exactly what state your roof is in when we leave.
Debris and moss around the roof edge can affect ventilation and moisture control, so fascias and soffits should also be inspected during roof maintenance.
We begin by carefully checking the roof condition, access points, and surface type to choose the safest cleaning method. This step ensures the roof is cleaned without damage or unnecessary risk.
Includes:
Full roof condition assessment, Selection of the correct cleaning method, Safety setup for property and access areas
Once everything is prepared, the roof is cleaned using controlled techniques to remove moss, algae, and built-up dirt safely. The process is gentle on tiles while still delivering visible results.
Includes:
Controlled surface cleaning, Safe moss and algae removal, Light wash down to clear residues
After cleaning is complete, we clear debris from gutters and leave the area clean and tidy. Final checks ensure the roof and surrounding areas are left in proper condition.
Includes:
Gutter clearance after cleaning, Final roof inspection, Clean handover of the property
Site visit and scope assessment
Transparent costs and timelines
Trades coordinated and managed
Snagging cleared, project closed
Most roofs in the UK benefit from professional cleaning every three to five years depending on the local environment, the type of roof covering, and the level of tree coverage around the property. Properties in damp, shaded, or heavily wooded areas will accumulate moss and algae more quickly than those in open or urban locations. A biocide treatment applied after cleaning significantly extends the period between cleans by preventing regrowth. EBT Build assesses the condition of your roof during the free survey and recommends a cleaning frequency appropriate for your specific roof type and location.
Pressure washing is safe for concrete roof tiles and robust surfaces when carried out at the correct pressure and angle. It is not recommended for natural slate, clay tiles, or older and more fragile roof coverings as high pressure water can dislodge tiles, damage mortar, and strip the surface coating from clay products. We assesses the roof covering and condition before selecting the appropriate cleaning method. Where pressure washing is not suitable, soft washing using low pressure water and specialist cleaning solutions is used instead. The cleaning method is always matched to the roof material to avoid causing damage that costs more to repair than the clean itself.
Roof cleaning removes existing moss growth but does not permanently prevent regrowth on its own. Moss spores are present in the air and will return to any roof surface over time, particularly in damp and shaded conditions. A biocide treatment applied after cleaning kills remaining spores and significantly slows regrowth, typically extending the clean period by two to three years. Roof tile sealing provides an additional layer of protection by making the surface less hospitable to moss and algae. We recommends the appropriate post-clean treatment during the survey based on the roof type and exposure level of the property.
The cost of roof cleaning in the UK typically ranges from £300 to £1,500 depending on the size of the roof, the cleaning method required, the extent of moss and algae growth, and access requirements. Soft wash cleaning on a standard semi-detached house typically costs between £400 and £800. Properties with heavy moss coverage or difficult access will cost more. Biocide treatment and roof tile sealing are priced additionally and depend on the roof area. EBT Build provides a fully itemised written quote after a free site survey so you know exactly what you are paying for before any work begins.
Roof cleaning carried out correctly by experienced professionals will not damage your roof. The risk of damage comes from using the wrong cleaning method for the roof material — particularly high pressure washing on slate, clay tiles, or aged coverings that are not strong enough to withstand the pressure. EBT Build always assesses the roof type and condition before selecting a cleaning method. We use soft washing as the default approach for most residential roofs and only use pressure washing where the surface material and condition make it appropriate. All cleaning is carried out from ladders or scaffolding where required, never by walking directly on the roof covering.
Whether scaffolding is required depends on the height of the property, the pitch of the roof, and safe access requirements. Single storey roofs such as garages and extensions can usually be cleaned from ladders. Two storey and larger properties typically require scaffolding or a mobile elevated work platform to allow safe access to all areas of the roof. EBT Build assesses access requirements during the survey and includes any scaffolding costs in the written quote so there are no unexpected additions once work begins. All work is carried out in line with current working at height regulations.
Reliable home refurbishment and roofing specialists delivering compliant, fully managed building work across the UK.
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