Real moss removal case study: 1970s Covingham semi, heavy north-facing moss, biocide treatment, £450.
A 1970s semi on Kingfisher Close in Covingham with severe moss growth covering 80 percent of the north-facing rear roof slope. The mature trees surrounding the property created constant shade that kept the tiles permanently damp.
The moss had been building up for over a decade. It was 30-40mm thick in places — heavy enough to be visible as a solid green mass from the garden. The weight was estimated at over 200kg of wet moss across the slope. Three tiles had been lifted by the moss root system, creating gaps where water was entering underneath. The gutters were permanently blocked with moss debris washing down from the roof. Inside the loft, the rafter space above the north slope showed significantly more moisture than the south slope.
Visit 1: Professional biocide spray application across the entire north-facing slope and the affected areas of the south slope. The biocide — a benzalkonium chloride formulation — was applied using a low-pressure sprayer to ensure even coverage without washing the product off the tiles.
Visit 2 (three weeks later): Dead moss removed using soft-bristle brooms working from ridge to eaves. The three lifted tiles re-seated and re-fixed with stainless steel nails. All gutter runs cleared of accumulated moss debris. Joints re-sealed. Preventative biocide coating applied to the cleaned surface to inhibit regrowth.
Visit 1: 2 hours for biocide application. Visit 2 (three weeks later): full day for removal, tile re-fixing, gutter clearing and preventative coating.
Total: £450 for both visits including biocide, tile re-fixing, gutter clearing and preventative coating.
The roof went from 80 percent moss coverage to clean tiles with the original surface finish intact — no pressure washing damage. The three lifted tiles are now secure. The gutters flow freely. The preventative coating is now three years old and the regrowth is minimal — a light green haze in the dampest corners rather than the solid mat that was there before. The homeowner has booked annual treatment to maintain the clean condition rather than allowing another decade of unchecked growth.
Call 0179 329 7084 for free advice.
0179 329 7084"Honest advice, professional work, fair pricing. Everything you want from a local roofer."
"Free survey was thorough. Clear explanation, no pressure. Will use them when the time comes."
"From first call to finished job — professional, punctual, clean. Highly recommend."
The moss had been building up for over a decade. It was 30-40mm thick in places — heavy enough to be visible as a solid green mass from the garden. The weight was estimated at over 200kg of wet moss across the slope. Three tiles had been lifted by the moss root system, creating gaps where water was
Visit 1: Professional biocide spray application across the entire north-facing slope and the affected areas of the south slope. The biocide — a benzalkonium chloride formulation — was applied using a low-pressure sprayer to ensure even coverage without washing the product off the tiles.
Timeline depends on job size. Minor repairs: 1-3 hours same visit. Re-roofs: 3-5 days for a semi. Flat roofs: 2-3 days. We confirm dates one week before and again the day before. We never leave a roof exposed overnight.
Prices depend on scope and access. We provide free written itemised quotes with no obligation and no call-out fee. Every quote breaks down materials, labour, scaffold and waste disposal separately so you can see exactly what you are paying for.
The roof went from 80 percent moss coverage to clean tiles with the original surface finish intact — no pressure washing damage. The three lifted tiles are now secure. The gutters flow freely. The preventative coating is now three years old and the regrowth is minimal — a light green haze in the dam
Nothing. Quotes are always free, written and itemised with no obligation. We never charge a call-out fee — the survey, diagnosis and written specification cost you nothing regardless of whether you proceed. For formal condition reports, the inspection fee (£120–£250) is credited against any work booked. We survey, photograph, explain and quote in writing. If you decide not to proceed, there is no charge.
Emergency repairs: same-day response, available 24/7 including weekends and bank holidays. Standard repairs: usually within a few working days of the survey. Planned re-roofs and larger projects: typically scheduled within 2-4 weeks depending on the time of year. We confirm your start date one week before and again the day before work begins.
Nothing. Quotes are always free, written and itemised with no obligation. We never charge a call-out fee — the survey, diagnosis and written specification cost you nothing regardless of whether you proceed. For formal condition reports, the inspection fee (£120–£250) is credited against any work booked. We survey, photograph, explain and quote in writing. If you decide not to proceed, there is no charge.
Emergency repairs: same-day response, available 24/7 including weekends and bank holidays. Standard repairs: usually within a few working days of the survey. Planned re-roofs and larger projects: typically scheduled within 2-4 weeks depending on the time of year. We confirm your start date one week before and again the day before work begins.
Nothing. Quotes are always free, written and itemised with no obligation. We never charge a call-out fee — the survey, diagnosis and written specification cost you nothing regardless of whether you proceed. For formal condition reports, the inspection fee (£120–£250) is credited against any work booked. We survey, photograph, explain and quote in writing. If you decide not to proceed, there is no charge.
Emergency repairs: same-day response, available 24/7 including weekends and bank holidays. Standard repairs: usually within a few working days of the survey. Planned re-roofs and larger projects: typically scheduled within 2-4 weeks depending on the time of year. We confirm your start date one week before and again the day before work begins.
Every roofing job is different. The property type, the housing era, the specific failure pattern, the exposure conditions and the homeowner's priorities all affect the specification and the cost. That is why we provide free, no-obligation surveys and detailed written quotes for every job. A case study like this one shows our process in action — the diagnosis, the specification decision-making, the execution and the result. If you recognise a similar problem on your own property, call 0179 329 7084 for a free assessment. We will tell you honestly what your roof needs, what it will cost, and how long it will take. No pressure, no salespeople, just straightforward advice from the people who will actually do the work.
We are NFRC registered, carry five million pounds of public liability insurance, and provide a written 10-year workmanship guarantee on every job. We have been serving Swindon and surrounding Wiltshire since 2003. Our business is built entirely on honest work and word-of-mouth recommendation. We do not advertise, we do not cold-call, and we do not employ salespeople. Every customer comes to us through recommendation or by finding us online — and we keep them by doing excellent work at fair prices. That is a business model we are proud of and one that benefits every homeowner who works with us.
A good roofer surveys from the roof, not from the ground. Photographs everything and explains what they find in plain language. Provides a detailed written specification, not just a price. Uses the correct materials for the property type and local conditions. Specifies stainless steel fixings as standard rather than the galvanised nails that caused Swindon's nail sickness crisis. Includes scaffold and waste removal in the quote. Offers a meaningful written guarantee backed by trade body membership and adequate insurance. Turns up when they say they will, does what they quoted, cleans up after themselves and stands behind the work for years afterward. This is the standard we maintain on every job and the standard you should expect from any roofer you hire.
Swindon's roofing market is served by a mix of national lead generation platforms, regional roofing companies and local sole traders. The national platforms route your enquiry to whoever pays them the most — you have no control over who turns up and no relationship with the company. Regional companies may send different teams for different jobs with variable quality. A genuine local roofer with their own team, their own reputation and their own guarantee on every job provides the consistency and accountability that matters when the work is on your home. We have been that local roofer for Swindon since 2003 and intend to be here for the next twenty years. Call 0179 329 7084 and talk to the people who will actually be on your roof.
We cover every postcode and neighbourhood across Swindon and a 15-mile radius. From the 1840s Railway Village to the 2020s Wichelstowe development, from hilltop Highworth to floodplain Cricklade, from the wind-exposed western estates at Shaw and Toothill to the sheltered inner suburbs at Covingham and Eldene. We carry the twelve most common tile profiles on every van, maintain relationships with specialist suppliers for reclaimed Welsh slate, Cotswold limestone tiles and traditional materials, and switch between modern specifications and period-appropriate techniques daily. Whether your property needs a single tile replacement, a full re-roof, a flat roof conversion, or specialist chimney work, we have the expertise, the materials and the local knowledge to do the job right first time.
From £150, no call-out fee.
More →Full re-roofs, 10yr guarantee.
More →GRP/EPDM, 25yr guarantees.
More →Same-day 24/7 response.
Call Now →Cleaning, repairs, replacement.
More →Repointing, flashings, stacks.
More →Biocide, 3-5yr protection.
More →uPVC roofline, ventilation.
More →Fitted to your roof.
More →Code 4 flashings, valleys.
More →Repair, matching, re-roofing.
More →Surveys from £120, fee credited.
More →Last updated: August 2026
Local Swindon roofers you can trust.
0179 329 7084