GRP fibreglass, EPDM rubber and felt systems for extensions and garages. Serving Lewisham (SE13, SE6, SE4, SE8) and surrounding areas with free quotes and a 10-year guarantee.
Victorian terraces throughout — particularly dense in Brockley, Catford and along Lewisham High Street. Edwardian properties in Honor Oak Park and Forest Hill. Major post-war estates including the Pepys Estate. 1930s semis in Hither Green and Downham. Modern developments around Lewisham Gateway.
For flat roofing specifically, this housing mix creates distinct demands. Welsh slate on Victorian stock, clay tiles on Edwardian, concrete tiles on 1930s and post-war estates, flat bituminous roofs on post-war blocks. One of South London's heaviest slate-roofed boroughs. — and each roof type requires different materials, methods and experience to repair or replace correctly.
The Ravensbourne river valley from Bromley through Catford to Deptford Creek creates a humidity corridor. Properties in the valley bottom around Ladywell and Catford Bridge experience notably damper conditions than higher ground at Brockley and Honor Oak. For flat roofing work, this means materials and methods must be specified for Lewisham's particular conditions — not generic South London assumptions.
Slate nail sickness across Brockley and Catford Victorian stock is the dominant repair call — original iron nails now 120–140 years old failing across entire streets. Box gutter failures on butterfly-roofed terraces in Deptford and New Cross cause concealed leaks. Flat roofs on rear extensions are a constant repair source.
Every flat roofing job in Lewisham starts with a proper inspection — from the roof, not the pavement. We photograph the issue, explain the cause, and give you a written quote with no hidden costs. Most minor work is completed same-day. Larger projects are scheduled within days and we keep you updated throughout.
GRP (fibreglass) creates a seamless, rigid, walkable surface — ideal for balconies, roof terraces and areas that take foot traffic. It is the premium option at £60–80/m² installed. EPDM (rubber) is flexible, lightweight and excellent for large uninterrupted areas like garage roofs and extensions — £40–60/m² installed. It cannot be walked on regularly. Traditional felt remains the cheapest option at £25–40/m² but has a 10–15 year lifespan versus 30–40 years for GRP and EPDM. We recommend based on your specific roof layout, usage requirements and budget — not a one-system-fits-all approach.
Three things kill flat roofs: ponding water (insufficient drainage falls), thermal cycling (membrane expansion and contraction cracking joints), and poor detailing at upstands and edges. We address all three by specification: minimum 1:40 falls using tapered insulation, high-quality membrane systems rated for UV and thermal exposure, and meticulous attention to every edge, upstand, outlet and penetration detail. The deck underneath is equally critical — we inspect and replace any compromised timber before the new membrane goes down. Cheap flat roofs fail because someone skipped these steps. Ours do not.
After installation we provide a maintenance guide specific to your system. GRP needs annual inspection of joints and trim edges. EPDM needs checking for punctures and debris around outlets. Both need gutters and outlets clearing twice a year. We offer a maintenance visit service — annual inspection and minor attention for a fixed fee. This protects your guarantee and catches issues before they become problems. Most flat roof failures between 5–15 years are maintenance failures, not product failures.
Victorian terraces throughout — particularly dense in Brockley, Catford and along Lewisham High Street. Edwardian properties in Honor Oak Park and Forest Hill. Major post-war estates including the Pepys Estate. 1930s semis in Hither Green and Downham. Modern developments around Lewisham Gateway. This means flat roofing work in Lewisham must account for the specific roof types, materials and structural conditions found here — not generic assumptions about South London properties.
The Ravensbourne river valley from Bromley through Catford to Deptford Creek creates a humidity corridor. Properties in the valley bottom around Ladywell and Catford Bridge experience notably damper conditions than higher ground at Brockley and Honor Oak. These conditions directly affect how we specify materials and methods for flat roofing work. A repair that holds in sheltered Camberwell may not survive the same winter on an exposed Lewisham roof without the correct specification for local conditions.
We work in Lewisham regularly — our teams know the streets, the housing stock, and the specific roofing challenges this area presents. When you call us for flat roofing on Lewisham High Street, we already know what roof type to expect, what materials to bring, and what problems are most likely. That local knowledge means faster diagnosis, better specification, and fewer return visits.
Free inspection and no-obligation quote. Call 0203 489 5352.
Free quotes, no call-out fees, same-day emergency response across South London.
0203 489 5352"Excellent flat roofing work on our property on Lewisham High Street. Slate nail sickness across Brockley and Catford Victorian stock is the dominant repair call was exactly what we were dealing with and they knew exactly how to fix it. Professional, punctual, fair price."
"Got a quote for flat roofing from three companies. These were the only ones who properly inspected from the roof, not just from the ground. Their diagnosis was spot on and the work was excellent. Highly recommend in Lewisham."
"Had been putting off flat roofing work for too long. They made it easy — clear quote, scheduled quickly, and the result is better than I expected. The team were friendly and cleaned up everything afterwards."
Typical costs for flat roofing in Lewisham range from £800–£6,000. Victorian terraces throughout — particularly dense in Brockley, Catford and along Lewisham High Street — and materials are specified accordingly. Free no-obligation quotes. Call 0203 489 5352.
For standard work we book within 2–5 days. Emergency flat roofing in Lewisham is same-day. Our teams work across Lewisham and can typically reach Lewisham within 60–90 minutes for emergencies.
Slate nail sickness across Brockley and Catford Victorian stock is the dominant repair call — original iron nails now 120–140 years old failing across entire streets. For flat roofing specifically, the victorian terraces throughout — particularly dense in brockley, catford and along lewisham high street creates particular challenges that we address with location-appropriate materials and methods.
It depends on the scope and access. Many minor flat roofing jobs in Lewisham can be done from a roof ladder. Larger projects on taller properties — victorian terraces throughout — particularly dense in brockley, catford and along lewisham high street — typically require scaffold, which we include in the quote.
Yes. NFRC registered, £5m public liability insurance, 10-year written workmanship guarantee on all flat roofing work in Lewisham and across South London.
Yes. Parts of Lewisham fall within conservation zones. We use heritage-specification materials where required and understand the planning restrictions that apply to properties in Lewisham.
Yes. Free inspection, free quote, no obligation. Call 0203 489 5352 and we will arrange a convenient time to assess your Lewisham property.
No call-out fees. No obligation. Just an honest quote from a local Lewisham roofer.
0203 489 5352