Does my roof actually need cleaning?

If there's visible moss, especially thick cushions in valleys or along ridge lines, or dark algae staining across a north-facing slope, it's worth having cleaned. A light green tinge with no thick growth can often wait, but it's worth a look before it gets worse.

How much does roof cleaning cost?

Typically from around £250 for a smaller roof with light staining up to £600 or more for a larger roof needing a full moss scrape and biocide treatment. We survey before quoting so the price reflects your actual roof.

Is the biocide treatment safe for pets, plants and drains?

We're trained in spill management and apply biocide carefully to avoid run-off into planting, ponds or drains. If you have particular concerns about a specific area of the garden, mention it when you book and we'll plan around it.

Does the method differ for slate roofs compared with tiled roofs?

Yes — slate is generally more brittle and needs a gentler touch, particularly on older roofs, while concrete tile has a rougher surface that holds moss more stubbornly and often needs a scrape before treatment. We adjust our approach to the roof in front of us.

How long does a roof clean take?

A standard softwash clean on an average semi usually takes half a day. Heavier moss scraping or larger roofs can take a full day or more — we'll give you a realistic estimate at survey stage.

What weather do you need for roof cleaning?

Dry, calm conditions are best, particularly for access equipment work, which we avoid in high winds for safety reasons. Light rain doesn't always stop a job but heavy or persistent rain usually means rescheduling.

Roof Cleaning & Moss Removal in Consett

Roof cleaning in Consett covering moss removal, algae staining and gutter care. Steam, softwash and low-pressure options depending on your roof.

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Our roof cleaning is softwash-based: a biocide treatment applied at low pressure that kills moss, lichen and algae without disturbing the tiles or forcing water up under the laps the way high-pressure jetting does. Where moss has built up thick, we scrape it off by hand first, then treat what's left.

We clean roofs across DH8 and the surrounding postcodes using softwash, steam or low-pressure methods depending on the roof, always working from ground level or access equipment rather than walking the tiles. It's a slower way of working, but it's the one that doesn't crack a slate to save ten minutes.

Consett sits around 18.4 miles from the coast, close enough that salt-laden air and prevailing wind both play a part in how quickly roofs pick up algae and moss compared with drier inland spots. Add in the North East's fair share of damp, overcast weather and you've got conditions moss genuinely likes.

Careful with older roofing materials

Asbestos awareness trained: We know how to recognise older roofing materials that may contain asbestos and work around them appropriately.
Fully insured: Full insurance cover for every job, on older roofs as much as newer ones.
Biocide trained (2024): Correct, careful application whatever the roof age or material.
Spill management trained: Responsible handling of products around drains, planting and neighbouring property.

Victorian terraces and older slate roofs

Rows of terraced houses from the steelworks era, with new estates built on the former steelworks site. means a fair few roofs around Consett are still on original or older-replacement slate, often with tighter, steeper pitches than modern housing. Slate handles moss differently to concrete tile — it doesn't hold growth in a rough surface the way concrete does, but individual slates can be brittle after a century of weathering, and any that are already cracked or slipped need identifying before we clean rather than after.

We survey older slate roofs closely before starting, work entirely from access equipment rather than walking the roof, and flag any tiles needing a roofer's attention separately — cleaning and repair are different jobs, and pretending otherwise on a roof this age is how small problems become big ones.

Why cleaning now is usually cheaper than waiting

A roof cleaned regularly stays cheaper to maintain than one left until moss has built up thick enough to need a full scrape. Beyond the clean itself, moss left untreated risks lifted tiles, blocked gutters and, eventually, repair costs well beyond what a periodic clean would have cost — worth factoring in alongside the up-front price.

Maintenance clean (every 2–3 years)	typically £250–£400
Overdue clean, heavy moss	typically £500–£800+
Gutter clear if left blocked too long	typically £60–£150

Access via A691

Consett is reachable via A691, which keeps travel time predictable for scheduling and means we can bring the cherry picker or podium equipment without route restrictions being an issue. Good road access also matters for larger jobs needing more than a van's worth of kit.

Biocide treatment

The core product on most jobs is a professional-grade biocide designed to kill moss, lichen and algae at the root rather than just stripping visible growth off the surface. Applied evenly across the whole roof at low pressure, it keeps working after we've left, which is what slows regrowth compared with a rinse-only clean.

Low-pressure clean with gutter check

1
Combined-visit survey
We look at both the roof and the guttering together, since one visit covering both is usually more cost-effective than two.
2
Low-pressure wash
Loose debris and light moss or algae are washed off at low pressure, gentle enough not to disturb tile fixings.
3
Targeted biocide
Biocide is applied to areas with active moss or algae growth rather than blanket-treating a roof that doesn't need it.
4
Gutter clearance
Gutters are cleared and checked for flow, often using our pole-mounted camera to confirm they're running clean.
5
Photo record
Before-and-after photos are provided so you can see the difference without needing to get up a ladder yourself.

Softwash, steam or low-pressure — which suits your roof

Softwashing with biocide is our default for most roofs: it's gentle on the tiles, kills moss and algae rather than just displacing it, and leaves a treatment behind that keeps working after we've left. Steam cleaning is useful where we want to lift ingrained staining or moss residue without any chemical at all, and works well on smaller areas or where a client would rather avoid biocide near planting.

Low-pressure washing sits between the two — enough force to move loose debris and light growth, without the risk high-pressure jetting carries for lifting tiles or driving water under laps. We choose the method, or combination of methods, that fits the roof in front of us rather than running one process on everything.

Roof Cleaning & Moss Removal near Consett

Covering the wider area around Consett

Beyond the immediate area, we regularly work out to Stanley, Prudhoe, Langley Park and Esh Winning, generally within a 4–10 mile radius of Consett. Distance rarely changes the price much within that range — it's roof size and moss condition that drive the quote, not the drive over.

Consett, County Durham — 7 neighbouring areas plotted within 8.7 miles. Distances are straight-line from Consett centre.