Homes with shaded or north-facing slopes
The slopes that never dry out properly and grow the heaviest moss, particularly under trees or between closely spaced terraces.
Roof Cleaning · Burnley & Lancashire
Roof Moss Removal in Burnley, Done Without Damaging the Covering
Moss scraped off carefully by hand, gutters and downpipes cleared of what comes down, and an honest report on anything found underneath, not a pressure washer taken to a hundred-year-old slate roof.
Over 10 years' experience · £1 million public liability · free fixed-price quote with photographs
10+ years' experience
Local slate, stone and tile roofs
No high-pressure washing
On coverings it would damage
£1m public liability
Insured on every job
Honest reporting
Anything found underneath is photographed and explained
What it involves
Moss Holds Water
on the Roof
Moss is not just untidy. It sits in the laps between slates and tiles, holds water against the covering, blocks the gutters when it falls and freezes into the joints in winter.
Roof cleaning here means removing moss growth by hand with scrapers and brushes, clearing the debris off the roof and out of the gutters, valleys and downpipes, and inspecting the covering underneath while access is already in place. The damp, sheltered northern slopes on the housing around Burnley, Nelson, Colne and the Yorkshire valleys grow moss readily, and on older slate and stone roofs it can build up heavily.
The method matters. High-pressure washing strips the surface off concrete tiles, drives water up under the laps and can break brittle slate outright, turning a cleaning job into a re-covering job. Careful mechanical removal is slower and does not damage what it is cleaning.
Because someone is on the roof anyway, this is also the cheapest opportunity to find out what condition the covering is genuinely in. Slipped slates, failed pointing and cracked flashings are photographed and reported, with no pressure to have anything else done.
Anyone with repeatedly blocked gutters
If gutters fill every autumn with material that is clearly not leaves, the source is moss washing off the roof above.
Owners preparing to sell or let
A clean roof visibly improves the front of a property, and clearing the moss lets a surveyor see the covering as it actually is.
When this work is needed
- Thick moss visible along the tile or slate laps
- Gutters filling with moss debris rather than leaves
- Moss fragments regularly appearing in the yard or garden
- Overflowing gutters or blocked downpipes
- A roof that looks dark and patchy compared with neighbouring houses
- Before selling, letting, or having other roof work priced
What happens if it waits
Left Alone, Moss
Costs You Money
Moss retains water against the covering and in the joints. In a damp climate with hard frosts, that combination works away at slate, tile and mortar continuously.
Freeze-thaw on the covering
Water held in moss freezes and expands in the laps and joints, delaminating slate and breaking the surface of concrete tiles.
Blocked gutters and downpipes
Moss washes down and packs into the gutter and outlet. The run overflows, water goes down the wall, and damp appears inside.
Blocked valleys
Moss caught in a valley dams the water that two roof slopes are trying to shed, backing it up under the coverings on both sides.
Moisture held against timber
Persistently wet covering keeps the roof space below damper than it should be, which over time affects battens and rafters.
Hidden defects
Heavy growth conceals slipped, cracked and missing slates. Problems that would be visible on a clean roof go unnoticed until they leak.
Damage from bad cleaning
The worst outcome is a pressure washer on old slate, broken units, water driven under the laps and a re-covering bill from a job meant to be maintenance.
Mistakes that cost people money
- Using a high-pressure washer on slate or concrete tiles, which strips the surface and breaks brittle units.
- Blasting water up the slope, forcing it under the laps and past the underlay.
- Leaving the removed moss on the roof or in the gutters so it blocks the system immediately.
- Walking a fragile roof without proper access equipment and breaking more than is cleaned.
- Treating cleaning as cosmetic and ignoring the defects it exposes.
- Applying chemical treatments without regard for planting, drainage or neighbouring property.
Done properly, moss removal is cheap preventative work that also gives you a proper look at the roof. Done carelessly, it is the most expensive way to damage a covering that was otherwise fine.
Our process
From First Look
to Guaranteed Finish
Assessment
Covering type and condition checked before anything is touched, so the right method is used and fragile roofs are handled accordingly.
Fixed price
A written fixed-price quote covering access, removal, gutter clearing and taking the debris away. Free, with no obligation.
Careful removal
Moss scraped and brushed off by hand, working down the slope so material is not driven under the laps, with the covering treated as the fragile thing it is.
Clear the system
Gutters, valleys, outlets and downpipes cleared of everything that has come down, then flushed and checked to make sure they run.
Report and tidy
Photographs of anything found: slipped slates, failed pointing, cracked flashings, with an honest note of what needs attention and what does not. Debris removed from site.
What you get
The Difference a Proper
Job Makes
The covering is protected
Careful mechanical removal cleans the roof without stripping tile surfaces or breaking slate the way pressure washing does.
Drainage that works again
Gutters, valleys and downpipes cleared and tested, so water leaves the building instead of going down the wall.
A free look at the roof
Access is already set up, so you get photographs and an honest condition report at no extra cost.
Frost damage reduced
Removing the material that holds water in the joints reduces the freeze-thaw damage that shortens a covering's life.
Visibly better property
A clean roof changes the appearance of the whole house, worth doing before selling, letting or valuation.
No hard sell
If the roof is fine underneath, you will be told it is fine. Defects are reported with photographs and a price, and the decision is yours.
In detail
Roof Cleaning
in Detail
How a roof is cleaned depends entirely on what it is covered with and what condition that covering is in.
Why moss grows here
Moss needs moisture, shade and a surface to hold onto. The East Lancashire and West Yorkshire climate supplies the first two generously, and the textured surfaces of weathered slate, stone flags and concrete tiles supply the third.
North-facing slopes, roofs shaded by trees or neighbouring buildings, and low-pitched roofs that shed water slowly grow the heaviest coverage, which is why one slope of a house is often thick with moss while another is clear.
Manual removal
Moss is scraped from the laps and brushed off the surface, working methodically down the slope so debris travels off the roof rather than being pushed up under the coverings.
This is slower than blasting it off, and that is the point. On old slate and stone the covering is the valuable thing; the cleaning method has to be gentler than the material it is cleaning.
Why pressure washing is avoided
High-pressure water strips the protective surface layer off concrete tiles, leaving them more porous and faster to grow moss again. On natural slate it can split and delaminate units that had years left in them.
It also drives water up under the laps and past the underlay, which on an older roof with perished felt means water straight onto the battens. Where a covering is robust enough for washing, that is discussed, but it is not the default.
Gutters, valleys and downpipes
Everything removed from the roof has to be cleared out of the system, or the job simply relocates the blockage. Gutters, valleys, outlets and downpipes are all cleared and then flushed and checked.
This is also the moment to spot gutters that have lost their fall or joints that have started to leak, which can be priced at the same time rather than needing another visit.
Inspection while up there
With moss removed, the covering can actually be seen. Slipped, cracked and missing slates, failed ridge and verge pointing, defective flashings and perished underlay at the eaves all become visible.
Findings are photographed and explained plainly, with any recommended work priced separately so you can decide. Nothing gets done that has not been agreed.
Keeping it clear
Moss returns, the climate guarantees it. Regular clearing every few years is far cheaper than dealing with blocked valleys and frost-damaged slate later on, and it keeps the roof visible for inspection.
Cutting back overhanging branches, keeping gutters clear and fitting guards where trees are close all slow the rate at which it comes back.
Where we carry out roof moss removal & cleaning
Based near BB8 0JP, this work is carried out across East Lancashire and West Yorkshire, from stone terraces in Burnley and Colne to hillside properties around Skipton and Keighley.
Related services
Most roofs need more than one thing looking at. These jobs are often quoted alongside roof moss removal & cleaning.
Straight answers
Roof Moss Removal & Cleaning
Questions, Answered
Anything not covered here, ring Samuel on 07534 748896 and ask. You will get a straight answer rather than a sales pitch.
How much does roof moss removal cost?
It depends on the size and pitch of the roof, how heavy the growth is and how the roof is accessed safely. Samuel looks at it and gives you a fixed written price, free of charge and with no obligation.
Do you use a pressure washer?
Not on coverings it would damage, which is most older slate and concrete tile. Moss is removed by hand with scrapers and brushes, because pressure washing strips tile surfaces, breaks brittle slate and drives water under the laps.
Is moss actually damaging my roof?
Yes, over time. It holds water against the covering and in the joints where it freezes and expands, it blocks gutters and valleys when it washes down, and it hides defects that would otherwise be spotted early.
How long does it take?
Most domestic roofs are cleaned in a single visit, including clearing the gutters. Larger or heavily overgrown roofs may take longer, and this is confirmed with your quote.
Will you clear the gutters as well?
Yes: gutters, valleys, outlets and downpipes are cleared of everything that comes down and then flushed and checked. Leaving that out would simply move the blockage.
How often should a roof be cleaned?
It depends on shade, tree cover and aspect. Roofs on shaded northern slopes need it more often than open sunny ones. Every few years is a reasonable rhythm for a roof that grows moss readily.
Will you tell me if you find damage?
Yes, with photographs and a plain explanation. Any recommended work is priced separately and you decide. If the roof is sound underneath, you will be told that too.
Can moss be treated so it does not come back?
Nothing prevents it permanently in this climate, though keeping the roof and gutters clear, cutting back overhanging branches and periodic maintenance visits all slow how quickly it returns.
Is the work insured?
Yes, £1 million public liability insurance is carried on every job, and any repair work carried out alongside the cleaning is covered by a workmanship guarantee.
Which areas do you cover?
Across East Lancashire and West Yorkshire from BB8: Burnley, Nelson, Colne, Clitheroe, Blackburn, Accrington, Preston, Skipton, Keighley, Bradford, Halifax, Leeds and Huddersfield.
Get the Moss Off
and See the Roof
Send your postcode and a photograph of the roof from the ground. Samuel will price the clean and the gutter clearing as one fixed figure, and report honestly on anything found underneath.
- Free fixed-price quote
- £1 million public liability
- Workmanship guarantee on all work
- Over 10 years on local roofs
Request your free quote
Send your postcode and a short description of the job. Samuel will arrange a look and price it properly.
Free, no-obligation quote. Your details are only used to price and discuss your job. Prefer to talk? Call 07534 748896.