Torch-On Felt New Roof
3-layer built-up felt with final mineral cap sheet.
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Felt Roofing — Proven Systems for London's Residential & Commercial Roofs
Built-up felt systems have protected London properties for over a century. Modern torch-on and self-adhesive felts deliver reliable waterproofing at competitive prices for extensions, garages, and outbuildings
- Traditional 3-layer torch-on systems for new installations
- Modern self-adhesive felts eliminating naked flame risks
- All work to BS 8217 specification standards
Roof Repair London
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20+ Years Experience
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Felt Roofing Projects Across Greater London
Completed felt installations on residential and commercial properties.
Roof Repair – Bermondsey, SE1
Flat Roof Replacement – Croydon, CR0
Slate Roof Restoration – Greenwich, SE10
Commercial Re-Roof – Canary Wharf, E14
Gutter Installation – Chelsea, SW3
Chimney Repointing – Islington, N1
Tile Replacement – Wembley, HA9
Emergency Leak Repair – Hackney, E8
Roof Insulation – Richmond, TW9
Velux Window Install – Hampstead, NW3
Lead Flashing – Westminster, SW1
Storm Damage – Battersea, SW11
Flat Roof Coating – Brixton, SW2
Fascia & Soffits – Fulham, SW6
Roof Survey – Kensington, W8
Moss Removal – Wimbledon, SW19
GRP Fibreglass Roof – Peckham, SE15
EPDM Rubber Roof – Stratford, E15
Zinc Roofing – Shoreditch, EC2
Roof Waterproofing – Clapham, SW4
Why London Property Owners Choose Felt Roofing
Cost-effective, reliable, and professionally installed.
20+ Years Experience
Trusted roofing expertise across London since 2004.
Fully Insured Company
Complete insurance coverage for your peace of mind.
Fast Response
Rapid response times across all London boroughs.
100% Satisfaction
We guarantee quality workmanship on every project.
Quality Materials
Only premium, industry-leading roofing materials used.
Complete Felt Roofing Services for London Properties
New installations, repairs, and overlays for all flat roof types.
Self-Adhesive Felt System
Cold-applied layers — no torch required.
Learn MoreFelt Roof Repair
Blister treatment, patch repairs, and joint sealing.
Learn MoreFelt Overlay Existing Roof
New felt over sound existing substrate.
Learn MoreVerge & Edge Detailing
Finished edges with DPC and trim systems.
Learn MoreGarage & Outbuilding Felt
Cost-effective felt solutions for smaller structures.
Learn MoreNeed Felt Roofing on Your London Property? Free Survey Available
Our Felt Roofing Process
Systematic approach for consistent quality.
Book Free Inspection
Schedule your free roof inspection online or by phone.
Roof Assessment by Experts
Our certified roofers thoroughly inspect your roof.
Transparent Quote & Repair
Receive a detailed, no-obligation quote and we get to work.
Felt Roofing London - All Areas Covered
Felt roofing services across all London boroughs.
Camden
Hackney
Islington
Westminster
Southwark
Lambeth
We serve all London boroughs within 24 hours.
Our Google Reviews
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James Wilson
Croydon, South London
"KS Roof Master did an outstanding job repairing our roof after storm damage. Fast response, fair pricing, and excellent workmanship."
Sarah Thompson
Islington, North London
"We had a leaking flat roof that other companies couldn't fix. KS Roof Master diagnosed the issue quickly and the repair has been perfect."
David Patel
Greenwich, East London
"Professional from start to finish. The free inspection was thorough and the quote was transparent with no hidden costs."
Felt Roof Leak in London? Emergency Repair Available
Rapid response for felt roof failures and blistering.
Blistering membrane
Blown joint
Edge failure
Puncture damage
Felt Roofing Costs in London
Transparent pricing for felt roofing specifications.
| Service | Starting Price |
|---|---|
| Felt Roof Survey & Specification | FREE |
| Torch-On Felt (per m2) | £50-£65 |
| Self-Adhesive Felt (per m2) | £55-£70 |
| Felt Patch Repair (per m2) | £75 |
| Garage Felt Roof (standard size) | £350-£600 |
| Perimeter Trims (per m) | £15 |
* Complex detailing, high-level access, and heating works may affect final costs.
Book Your Free Felt Roofing Survey
We assess your requirements and specify appropriate felt systems.
- Full roof condition report
- Photo documentation of all findings
- Expert repair recommendations
- Transparent cost estimate
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Felt Roofing Questions Answered
Technical guidance on felt specifications and applications.
Modern torch-on felt uses heavy-duty polyester or glass fibre bases with modified bitumen coatings that melt on heating. This creates a strong bond between layers and excellent adhesion to the substrate. Traditional pour-and-roll felt used lighter substrates and cold adhesives. Torch-on systems are more robust and longer-lasting — typically 15-20 years service life.
Torch-on felt requires a naked flame — we take extensive precautions on London properties. We remove combustible items, protect adjacent structures, have fire extinguishers tohand, and use registered hot works procedures. For sensitive situations (timber structures, listed buildings), we specify self-adhesive alternatives that achieve equivalent performance without the torch.
Moisture trapped between layers or beneath the felt is the primary cause — when heated by sun, it turns to steam and lifts the membrane. Prevention involves proper substrate preparation: ensuring timber is dry, removing all debris, applying a vapour control layer where needed, and working only in dry conditions. We also ensure adequate ventilation in the roof space.
Listed properties often have restrictions on membrane replacements. We work with conservation officers to specify approved systems — typically single-layer self-adhesive felt where torch work is prohibited. We document existing construction, propose appropriate interventions, and use materials that match the building's original character.
Felt remains the most cost-effective solution for simple flat roofs on garages, sheds, and single-storey extensions where longevity requirements are moderate. Budget constraints favour felt — the material cost is lower, and application is quicker. For primary living space roofs where 25-30 year performance is required, EPDM or GRP represent better long-term value.
Keep gutters and outlets clear to prevent water backing up onto the felt. Remove leaf accumulation in autumn. Inspect after storms for lifted edges or damage. Minor repairs at early stages prevent more extensive failures. We offer annual maintenance contracts for commercial felt roofs.
Cost-Effective Felt Roofing — Book a Free London Survey Today
Professional installation with written guarantees.