Roof Biocide Treatment
Professional biocide applied after cleaning to kill remaining spores and prevent regrowth.
- Professional-grade products — not consumer sprays
- Inhibits regrowth for two to four years
- Fixed pricing with no hidden extras
Cleaning Alone Does Not Stop Moss Coming Back
Removing visible moss from your roof tiles is only half the job. Moss reproduces from microscopic spores that are embedded in the tile surface and impossible to remove by scraping alone. Within months of cleaning, these spores germinate and new moss growth begins. A professional biocide treatment kills these remaining spores and leaves a residual barrier that inhibits regrowth for two to four years.
Radiant Roofing applies professional-grade biocide treatments to pitched roofs across Kent, Sussex and Surrey. We use products that are significantly more effective and longer-lasting than consumer sprays available from DIY shops. Treatment is applied after moss removal while the tile surface is clean and receptive.
How It Works
Moss Removal First
Biocide is most effective on a clean surface. We remove moss first, then apply the treatment to the cleaned tiles for maximum absorption and longevity.
Fixed Quote
Biocide treatment is quoted as an addition to moss removal, or separately if your roof has recently been cleaned. Clear pricing, no hidden charges.
Professional Application
We apply the biocide evenly across the entire roof surface using low-pressure spraying equipment, ensuring full coverage of tiles, ridges and valleys.
Lasting Protection
The biocide kills remaining spores and provides a residual barrier. Your roof stays cleaner for two to four years depending on conditions.
Moss Removal First
Biocide is most effective on a clean surface. We remove moss first, then apply the treatment to the cleaned tiles for maximum absorption and longevity.
Fixed Quote
Biocide treatment is quoted as an addition to moss removal, or separately if your roof has recently been cleaned. Clear pricing, no hidden charges.
Professional Application
We apply the biocide evenly across the entire roof surface using low-pressure spraying equipment, ensuring full coverage of tiles, ridges and valleys.
Lasting Protection
The biocide kills remaining spores and provides a residual barrier. Your roof stays cleaner for two to four years depending on conditions.
What Our Biocide Treatment Service Includes
We apply professional biocide products to all types of pitched roof tile. Treatment is most effective when applied immediately after moss removal to a clean, dry surface.
What Does Biocide Treatment Cost?
Typical price range
£150 – £600
VAT may apply depending on the project
Factors that affect the price:
- 1Roof size (measured in square metres)
- 2Whether moss removal is included or treatment only
- 3Access requirements and roof pitch
- 4Product choice and coverage rate
Biocide treatment as an add-on to moss removal costs £150 to £400. As a standalone service on a recently cleaned roof, £200 to £600. We strongly recommend combining treatment with moss removal for best results and to save on access costs.
What Our Customers Say
Verified Google ReviewsJane S.
Kent
They were very friendly, professional and polite and left the site immaculate at the end of the day. I would thoroughly recommend them to others. The work was carried out to a very high standard.
Peter B.
East Sussex
Excellent work, highly recommended! Very knowledgeable, by far the best roofing company we have ever used and super nice guys.
Sarah M.
Surrey
Radiant Roofing completed our roof repair quickly and professionally. Great communication throughout and a fantastic result.
Frequently Asked Questions
Biocide treatment typically costs £150 to £600. As an add-on to moss removal, it costs £150 to £400 — the access is already in place so you save significantly. As a standalone treatment on a recently cleaned roof, expect £200 to £600 depending on roof size.
A professional biocide treatment typically inhibits moss regrowth for two to four years. The exact duration depends on your roof orientation, local microclimate and proximity to trees. North-facing roofs in damp, shaded locations will need retreating sooner than south-facing roofs in open positions.
Yes. The products we use are designed specifically for roof tiles and are safe for clay, concrete and slate surfaces. They do not discolour tiles, strip coatings or cause any surface damage. We use environmentally responsible products that break down naturally after doing their job.
We cover Kent, East Sussex, West Sussex and Surrey. Our teams regularly apply biocide treatments in Tunbridge Wells, Crowborough, Sevenoaks, Tonbridge, Uckfield, Haywards Heath, East Grinstead and surrounding areas.
Consumer-grade moss killer sprays are available but they are much weaker than the professional products we use and typically last only a few months. Working on a roof is also dangerous without proper equipment. Professional application gives you a stronger product, full coverage and the peace of mind that comes with expert access to your roof.
Contact Us!
Get in touch with us!
Looking for a free quote? Just fill in the form below, and we'll take care of the rest!
Contact Information:
Mobile (24/7): 07753 165 005
Landline (Office Hours): 01892 356 967
Email: contact@radiantroofing.co.uk
Head Office:
Address:
Alpha House
Crowborough Hill
Crowborough
TN6 2EG
Opening Hours:
Monday to Friday: 7:30 am – 6:00 pm
Saturday: 7:30 am – 12:00 pm
Sunday: Closed (mobile still available)
Our Mobile and Email is available 24/7
