Roof Cleaning Birmingham: Moss Removal and Biocide Treatment
Roof cleaning in Birmingham removes growth by hand and treats what remains chemically, because every mechanical shortcut that speeds the job up also shortens the life of the covering underneath. Book a survey and the crew that inspects the roof is the crew that carries out the work. A survey that concludes the roof does not need cleaning is a legitimate outcome and is offered as one.
- On site in 45 to 90 minutesEvery elevation photographed from ground level and ladder, and the roof void inspected from inside.
- A written report in two daysDefects separated into immediate, this season and monitor, with photographs against each.
- An itemised written scopeAgreed and signed before anyone starts, with no variation without a new figure.
Call the crew07446 375079
Monday to Friday, eight until six, and Saturday mornings. Emergency make-safe runs outside those hours.
Crews work across 8 Birmingham and Solihull districts: Sutton Coldfield, Harborne, Edgbaston, Moseley, Solihull, Erdington, Kings Heath and Selly Oak. Postcodes outside that run are quoted case by case rather than turned away.
- Free survey No charge for the survey, and none if the report says nothing needs doing.
- Own crews The people who survey the roof are the people who lay it. No subcontracting, no lead resale.
- Written scope first Quoted as an itemised scope agreed before work starts.
- Workmanship warranty Issued in writing on completion. Sole trader, no scheme registration.
Most roofs with moss on them do not need cleaning. Where growth is damming water above the headlap or blocking valleys and outlets, they do.
What we fix
How is a roof cleaned properly?
Growth is scraped by hand working from the ridge downward, gutters and outlets are cleared of the debris that falls, and a biocide is applied to kill residual spores. No water is driven under the covering at any point.
- Roof cleaning involves hand scraping from ridge downward, gutter clearance, then biocide application; a biocide is kills residual spores and slows regrowth without mechanical disturbance.
- Pressure washing position: not used; it strips surface, drives water under the headlap and dislodges bedding
How it works
Everything scraped off has to be collected.
- Hand scraping removes growth without disturbing bedding or headlap.
- Pressure washing strips the surface and drives water beneath the covering.
- A biocide kills residual spores and slows a regrowth.
- A roof coating traps moisture and conceals the covering's condition.
Straight answers
Why do we never pressure wash a roof?
Pressure washing strips the surface of aged concrete tiles, forces water past the headlap into the roof space, and dislodges ridge and verge bedding. It cleans faster and leaves the covering measurably worse than it found it.
Soft washing means low-pressure chemical application, distinct from jet washing. The sequence is follows scraping, because dislodged growth lands in the channel. Roof cleaning is growth damming water above the headlap, blocked valleys and outlets, or pre-sale presentation.
Does your roof actually need cleaning?
Not always. Thin growth on a sound covering with clear drainage causes no harm and is left alone. Cleaning is justified where growth dams water above the headlap, blocks valleys or outlets, or a property is being presented for sale.
Aged surfaces are porous and are visibly damaged by jetting. Sealants and coatings applied after cleaning trap moisture and are not offered.
Do you apply a sealant afterwards?
No. Coatings and sealants sold after cleaning trap moisture within the covering and conceal its condition from future inspection. The roof is left as a clean, breathable surface with a biocide treatment only.
The zinc or copper strip run-off inhibits regrowth on the slope below.
- Roof cleaning access: requires ladder or scaffold; it is not a ground-level operation
How long does it stay clean?
Treated roofs stay substantially clear for several years, with north-facing and shaded slopes recolonising first. Zinc or copper strips at the ridge and cutting back overhanging branches extend that period considerably.
Why gutter clearance is part of the job
A survey that concludes the roof does not need cleaning is a legitimate outcome and is offered as one.
Book a roof clean
Post-clean sealants are a high-margin upsell that trap moisture and hide condition; declining them is a differentiator. Scraping before gutter clearance, never after — the debris has to land somewhere and then be removed. Porous surfaces on interwar concrete tiles are stripped by pressure, and the damage is permanent.
Soft washing, and 5 more
- soft washing
- biocide
- headlap
- bedding
- roof coating
- scraping
Recent work
Job photographs are added as each contract completes, with the date, the district and the defect named in the caption.
Where we work
8 Birmingham and Solihull districts
- Sutton Coldfield
- Harborne
- Edgbaston
- Moseley
- Solihull
- Erdington
- Kings Heath
- Selly Oak
Postcodes outside that run are quoted case by case rather than turned away.
Related pages
Book a roof cleaning survey
A survey takes forty-five to ninety minutes and the written report follows within two working days. Nothing is charged for the survey, and nothing is charged if the report says nothing needs doing.