Careful roof cleaning that protects your roof
A clean roof is not only about appearance. Over the years, moss, algae and lichen build up on tiles and slates, holding moisture against the surface and slowly causing damage that leads to expensive repairs. At Dexters Build we offer professional roof cleaning and moss removal that clears the growth, protects the roof covering and keeps your home looking cared for. We are a family-run business with over 10 years' experience, and every job is backed by our fully guaranteed workmanship.
We work on both residential and commercial properties throughout Bedfordshire, Buckinghamshire and Hertfordshire, including Leighton Buzzard, Luton, Dunstable, Bedford, Milton Keynes and the surrounding towns and villages. Every quote is free and comes with no obligation.
Why moss and algae are a problem
Moss may look harmless, but it causes real damage when it is left to spread. The thick growth that forms on north-facing and shaded roofs holds water like a sponge, keeping tiles damp long after the rain has stopped. That trapped moisture speeds up frost damage, lifts and cracks tiles, and shortens the life of the whole roof.
- Blocked gutters and downpipes. Loose moss washes off the roof and collects in the guttering, leading to overflows and damp. If you are dealing with this, our guttering service can clear and repair the system at the same time.
- Water retention and frost damage. Saturated moss freezes in winter, expands, and works tiles loose.
- Tile and slate damage. Roots and growth get under and between tiles, lifting them and creating gaps where water can get in.
- Slippery, unsightly surfaces. Algae leaves dark green and black staining that makes a roof look tired and neglected.
What roof cleaning involves
We take a careful, methodical approach rather than blasting the roof with high pressure, which can do more harm than good. Our process is built around protecting the roof covering while getting it properly clean.
Moss removal
We start by removing the bulk of the moss by hand and with soft brushes and scrapers, clearing it from the tiles, the joints and the gutters below. Working by hand means we lift the growth without driving water under the tiles.
Soft washing
Rather than aggressive jet washing, we use a controlled low-pressure soft wash that lifts dirt, algae and staining without stripping the protective surface of the tiles or forcing water into the roof. This is the safest method for older and more brittle coverings.
Biocide treatment
Once the roof is clean, we can apply a biocide treatment that kills off remaining spores and slows down regrowth, keeping the roof cleaner for longer between visits.
We spot problems before they get worse
Because we are up on the roof and looking closely at every tile, roof cleaning is also a chance to catch issues early. We routinely find slipped or cracked tiles, worn pointing around chimneys, and gaps where water could get in. If we find anything, we will tell you straight away and can put it right through our roof repairs service, so a clean does not turn into a leak. Many customers pair a clean with our roof maintenance plan to keep things in good order year-round.
Why choose Dexters Build
- Family-run with over 10 years' experience across local roofs.
- Fully guaranteed workmanship on every job, large or small.
- Careful low-pressure methods that clean without damaging tiles.
- Honest advice and any issues flagged before they become costly.
- Free, no-obligation quotes for homes and businesses alike.
If your roof is covered in moss or looking green and tired, it is worth dealing with before the next wet winter. Whether you need a one-off clean, a treatment, or a clean alongside a new roof assessment, we are happy to take a look and advise honestly.
Get a free roof cleaning quote
Ring us on 07951 017425 for a friendly chat, or request a free no-obligation quote through our contact page. We will arrange a convenient time to inspect your roof and give you a clear, fair price.
