How much does roof cleaning cost in Teesside? (2026)
Roof cleaning in Teesside costs £400 to £900 for moss removal on a typical semi in 2026, £500 to £1,200 for soft washing, £150 to £400 for biocide treatment, £900 to £2,000 for sealing, £120 to £300 for conservatory roofs and £60 to £120 for gutter clearing.
Last updated: August 2026, prices reviewed quarterly.
What moves the price
Five things: roof size (a terraced house is not a detached), pitch and height (steep and tall costs access), access (conservatories and extensions in the way mean towers rather than ladders), growth level (light film versus decade-old moss cushions), and method (scrape-only is cheapest, soft wash combination jobs cost more and last longer). A quote from the kerb is guessing at all five; a quote after a proper look is not.
The method question is a price question
The cheapest quote on the market is usually a pressure wash, and it is cheap for a reason: fast, no chemicals, no skill required, and quietly destructive. High pressure strips the protective face from concrete tiles, shortens their life, forces water under laps and can void warranties. The methods worth paying for, hand scraping, soft washing, steam, cost more because they take longer and use materials. Paying £100 less for roof damage is not a saving.
The maths of prevention
One full clean every six years at £700 averages £117 a year. A clean then biocide retreatment every three years at £250 averages under £100 a year, and the roof never goes green. On Teesside's shaded and coastal plots the prevention pattern wins clearly; on open sunny plots it wins by less but still wins.
Red flags in a cheap quote
- No method named: "roof clean £250" with no method means pressure washer.
- No biocide: scrape-only quotes regrow within eighteen months.
- No access line: towers and harnesses cost money; a quote that never mentions them plans to cut the corner.
- Gutters excluded: a cleaned roof sheds for weeks; gutters left full defeat the point.
- Coating sold on a dirty or damaged roof: coating must follow cleaning and sound tiles, never precede them.
| Job | Typical price | Notes |
|---|---|---|
| Moss removal, terraced or semi | £400–£900 | Scrape + biocide, gutters cleared |
| Moss removal, larger detached | £700–£1,400 | Complexity moves the price |
| Soft wash treatment | £500–£1,200 | Kills growth at the root |
| Biocide treatment only | £150–£400 | Prevention on clean roofs |
| Roof sealing / coating | £900–£2,000 | After full clean, sound tiles only |
| Conservatory roof clean | £120–£300 | Glass or polycarbonate |
| Gutter clearing | £60–£120 | Downpipes flushed, valleys cleared |
| Biocide retreatment cycle | £150–£400 / 2–4 yrs | The permanent-prevention pattern |