Roof cleaning cost in 2026: moss removal prices explained
Roof cleaning cost in 2026 runs from about £300 for a small flat roof to £1,275 for hand removal on a large pitched roof. Here are the published UK ranges, what moves them, and how Doyle Homes quotes.
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By Hugh O'Shea, Doyle Homes Ltd. Updated 16 October 2026.
Roof cleaning cost per square metre, by method
The method sets the rate. The guides publish slightly different numbers, so the table shows the spread. None of this is a Doyle Homes price list, and scaffold is extra. Read the rate against the size of your own roof, not against a headline figure, because a low rate on a big roof still adds up.
| Method | Per m² (market range) | Source |
|---|---|---|
| Pressure washing | £5 to £15 | Checkatrade, MyBuilder, Rated People |
| Steam cleaning | £9 to £25 | Checkatrade and MyBuilder |
| Hand removal and biocide | £8 to £15 | Checkatrade and Rated People |
| Soft washing | £12 to £20 | Checkatrade and MyBuilder |
| Manual scraping | £5 to £10 | MyBuilder |
| Roof cleaning, all methods | £8.50 to £14 | Checkatrade, April 2026 |
Moss removal on a roof: cost by roof size
Checkatrade works out whole-roof prices from the size of the house, using 65 m² for a small roof, 75 m² for an average semi or small detached, and 85 m² for a large detached. The totals below exclude scaffold.
| Roof size | Pressure washing | Hand removal and biocide |
|---|---|---|
| Small, 65 m² (terrace or small semi) | £325 to £780 | £520 to £975 |
| Average, 75 m² (semi or small detached) | £375 to £900 | £600 to £1,125 |
| Large, 85 m² (detached) | £425 to £1,020 | £680 to £1,275 |
Roof cleaning cost by roof type
MyBuilder prices the whole job by roof type instead of by method, and Rated People gives a single range for a typical house. Together they bracket what a homeowner is quoted.
| Roof | Total job cost | Source |
|---|---|---|
| Flat roof | £300 to £600 | MyBuilder, updated August 2026 |
| Pitched roof | £450 to £850 | MyBuilder, updated August 2026 |
| Tile roof | £400 to £750 | MyBuilder, updated August 2026 |
| Slate roof | £500 to £1,000 | MyBuilder, updated August 2026 |
| Typical house | £600 to £1,200 | Rated People |
What moves the roof cleaning cost
Roof size, pitch and access
Area is the starting point, and a steep roof takes longer. Checkatrade lists scaffold at £16 to £20 per m² when it is needed, while MyBuilder adds £150 to £300 for scaffold on a complex roof. A roof you can reach safely from a ladder or a low scaffold costs far less to clean.
How thick the moss is
Light algae stains wash off quickly. A thick moss mat on a north slope has to be scraped by hand before anything is sprayed, and that is labour. MyBuilder lists biocide treatment at £25 to £50 extra.
The tile or slate underneath
Slate costs more to clean than concrete tile because the work is slower and the surface needs more care. A high-pressure jet can strip the surface off concrete tiles and leave them more porous than before, which is why the cheapest method is not always the right one.
Where you live
Labour rates in London and the South East run higher than the national averages in these guides, so a Bedfordshire or Hertfordshire quote sits toward the upper half of the ranges.
Is a roof cleaning cost worth paying, or is the roof past it?
Moss holds water against the tiles, lifts the edges and blocks the gutters. Cleaning removes that load and stops the damage spreading, and on a sound roof it is money well spent. On a tired roof it is not. If the tiles are crumbling, the ridge mortar has gone or the felt beneath has perished, cleaning the surface hides a roof that needs a repair or a replacement.
That is the call we make on the day. We climb up and look at what is underneath the moss before we quote. If the roof needs a cheap repair, we tell you. If it is past saving, we show you why, and our new roof cost guide explains what a replacement runs to.
Pressure washing, soft washing or hand removal?
Pressure washing is the cheapest and the riskiest on older concrete tiles. Soft washing uses a low pressure spray with a cleaning solution and costs more per metre, but it protects the tile surface. Hand removal with a biocide wash is slower and suits thick moss and fragile slate. Steam cleaning sits at the top of the range.
The right method is the one that clears the moss without damaging the tile. We explain the choice for your roof in simple terms before you commit, and our moss removal and roof cleaning page has the detail.
Best time to clean, and how often
MyBuilder names spring and early autumn as the best seasons, when roofs are dry and the cleaner has time to work before the wet months. Moss comes back faster on shaded and north-facing slopes, so cleaning is a regular job, not a one-off. A treatment stretches the gap between cleans.
Cleaning is also the cheapest time to catch small faults. A roofer already on the roof can re-bed a loose ridge tile or replace a cracked one at a fraction of the cost of a callout. See our roof repair cost guide for those prices.
How Doyle Homes quotes roof cleaning
We survey the roof for free and write a detailed quote that separates materials from labour, with no hidden costs. We tell you what we find under the moss, in photographs, before we ask you to spend anything.
If you hold a written quote from another firm, send it to us. We promise to beat any written quote. All work is backed with a 20 year written guarantee, we are fully insured, and Doyle Homes is a family business with over 25 years' experience. Ask for a free quote, or see our roof repairs service if the survey finds damage. We work across Luton, Bedford, St Albans and Milton Keynes, and every price is quoted from a survey wherever you are.
Questions
How much does roof cleaning cost?
Rated People lists £600 to £1,200 for a typical house, and MyBuilder lists £400 to £750 for a tile roof and £450 to £850 for a pitched roof. Scaffold is extra. We quote in writing after a free survey.
How much does moss removal from a roof cost?
Checkatrade lists £375 to £900 for pressure washing an average roof and £600 to £1,125 for hand removal and biocide. Per square metre, the range is £8.50 to £14 across methods.
Is it worth cleaning a roof?
On a sound roof, yes. Cleaning removes the moss that holds water, lifts tiles and blocks gutters. On a tired roof, the money is better spent on a repair or a replacement.
Does pressure washing damage roof tiles?
A high-pressure jet can strip the surface off concrete tiles and make them more porous. Soft washing or hand removal with a biocide protects the tile and costs more per metre.
How often should a roof be cleaned?
It depends on the shade, the trees and the roof's aspect. North-facing and shaded slopes need cleaning more often. A treatment after cleaning stretches the gap between jobs.
Can you repair the roof at the same time as cleaning it?
Yes. A cracked tile or loose ridge tile found during the clean is cheaper to fix on the same visit. We give you a written price for any repair before we start.
Is scaffold needed to clean a roof?
Not always. A low roof can be reached from a ladder or a tower. Checkatrade lists scaffold at £16 to £20 per m² where it is needed, and MyBuilder adds £150 to £300 for a complex roof.
Get a written price for roof cleaning
Free, no obligation survey. Detailed written quote. We beat any written quote and back every job with a 20 year written guarantee. Call 01582 807949.