EPDM Flat Roofs In Welwyn Garden City
The post-war estates brought plenty of flat-roofed garages and extensions to Welwyn Garden City, and many homeowners have built more since. When the felt on one of these roofs starts cracking or ponding, EPDM rubber is a tidy replacement: a single seamless membrane bonded to a new deck.
Options for your roof
We install and repair across all major options to suit your home and budget.

Garage roofs
A single seamless EPDM sheet stops garage leaks for good.

Extension roofs
Jointless rubber membrane ideal for rear extensions.

Dormer roofs
Neat EPDM on flat dormer tops with lead detailing.
Flat-roofed garages and extensions in Welwyn Garden City
Typical EPDM jobs here are garages and rear extensions on the post-war estates in AL7 and AL8. The felt we take off is often cracked, blistered or heavily patched, and the deck underneath is commonly soft from long-term damp. We lay a fresh deck with a gentle fall so water runs to the gutter, then bond the EPDM membrane in one piece across the whole roof. Edge trims, wall upstands and a sealed outlet complete the job. Rooflights can be built in at the same time if you'd like more light in an extension. The finished roof has no seams across its surface.
Every job starts with a free survey and a written quote. Call 01438 870485 or book online.
Arrange a free epdm flat roofs survey in Welwyn Garden CityRelated guide: EPDM vs GRP vs felt: which flat roof is right for your home?Trees, leaves and consent
Leaves from the town's tree-lined streets collect on flat roofs and block outlets, so we position outlets and gutters to make clearing easy. If your home is covered by the Estate Management Scheme or in the conservation area, a visible change may need consent. New flat roofs here, as everywhere, come with our 10-year guarantee.


The Benefits Of Our EPDM Flat Roofs
Single seamless sheet
UV and ozone resistant
Low maintenance solution
Our 6-Step Process
From initial inspection to signed-off guarantee, every stage is transparent.
Free survey
We inspect the flat roof, the deck and the falls.
Written quote
You get a fixed written quote for the replacement.
Prepare and protect
We clear the area and protect anything below.
The main work
We strip the old roof, repair the deck and bond the EPDM sheet.
Finishing details
Edge trims and upstands are dressed neatly.
Clean-up and sign-off
We tidy the site and hand over your guarantee.
Free Written Quote After A No-Obligation Survey
We survey your roof in Welwyn Garden City, assess the work needed, and provide a fixed, itemised written quote. The price we quote is the price you pay — no hidden extras, no large upfront deposits.
Get a Free QuoteWhat's included
- Single seamless sheet
- UV and ozone resistant
- Low maintenance solution
- Free written quote after a no-obligation survey in Welwyn Garden City
EPDM vs GRP vs felt: which flat roof is right for your home?
EPDM rubber, GRP fibreglass and modern felt all make good flat roofs when they are fitted well. Here is how they differ, and how to pick the right one for your garage, extension or dormer.
EPDM Flat Roofs in Welwyn Garden City — Your Questions
Everything you need to know about our epdm flat roofs service across Welwyn Garden City and Hertfordshire.
Trusted by homeowners in and around Welwyn Garden City
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Other Roofing Services In Welwyn Garden City

New Roofs in Welwyn Garden City
Complete pitched and bespoke roof installations using high-grade slate, tile, and modern breathability systems with a 10-year guarantee.

GRP Fibreglass Flat Roofs in Welwyn Garden City
Ultra-tough liquid-applied fibreglass system creating an impenetrable monolithic barrier with custom non-slip topcoats.

Felt Flat Roofs in Welwyn Garden City
Multi-layer high-performance torch-on polyester bitumen membranes engineered for long-lasting, cost-effective flat roof protection.

Roof Repairs in Welwyn Garden City
Rapid diagnostic and targeted fix service for storm damage, missing tiles, ridge recapping, flashing leaks, and chimney repointing.
Start Your Free Quote
Tell us a little about your roof and we will call you back to arrange a free survey and a fixed written quote.
A survey you can trust
- Free written quote after a no-obligation survey.
- 10-year written guarantee on new roofs.
- Checkatrade approved and fully insured.
- Emergency repairs available for storm damage and leaks.
Prefer to speak right now?
01438 870485Get A Free Quote For EPDM Flat Roofs In Welwyn Garden City
Speak to our team today. We provide a free, no-obligation on-site survey in Welwyn Garden City and a fixed written quote.
