Do you cover all of Aylesbury?

Yes - we cover every part of Aylesbury including Bedgrove, Watermead, Berryfields, Fairford Leys, Walton Court, Quarrendon and the surrounding villages, plus the wider Buckinghamshire area.

EPDM vs GRP - which is better?

EPDM rubber is fitted as one continuous sheet so there are no seams to fail, ideal for larger garages and extensions. GRP fibreglass has a harder, smarter finish and suits bay roofs, porches and anywhere it's visible. Both are excellent when installed properly.

Can you overlay my existing flat roof?

Often yes, providing the deck is sound and there's no trapped moisture. Overlaying with EPDM is a cost-effective way to add 20+ years to a tired roof without the full strip cost.

How long does a flat roof take to install?

A standard garage roof takes 1–2 days. A larger extension with insulation upgrades and a roof lantern might be 3–5 days.

Will you upgrade the insulation?

Yes - if we're stripping back to deck, it makes sense to bring the insulation up to current Building Regs at the same time. It's a small extra cost for a noticeable difference to the room below.

← All services

Flat Roofing in Aylesbury

Aylesbury's flat roofing specialists - EPDM, GRP and felt installations and repairs.

About this service

Flat roofs cover a huge proportion of the extensions, garages, dormers and bay windows on homes across Aylesbury. The materials available today are a world away from the bitumen felt that was standard 20 or 30 years ago - a properly installed flat roof now will comfortably outlast the average homeowner's stay in the property.

We install and repair flat roofs in three main systems: EPDM rubber, GRP fibreglass and modern high-performance felt. Each has its place, and as part of your free quote we'll talk through which suits your property, budget and what the roof is being used for. We're based in Aylesbury and cover the wider Buckinghamshire area.

Common problems we solve

Old felt roofs blistering and cracking

Three-layer pour-and-roll felt has a lifespan of around 15–20 years. Once it goes brittle and starts cracking, patching is a short-term fix at best.

Ponding water

Flat roofs need a slight fall to drain. Many older Aylesbury extensions were built too level, causing standing water that accelerates failure.

Failed laps and joins

On older felt and single-ply roofs, the seams are always the weak point. We can often overlay rather than fully strip.

Inadequate insulation

Pre-2000s flat roofs are usually uninsulated or barely so. A re-roof is the perfect chance to upgrade to current Building Regs U-values, dropping your heating bills.

How we work

1
Survey & system choice
We assess the deck, falls and surrounding details, then recommend EPDM, GRP or felt with reasons for each.
2
Strip back to deck
Old coverings come off, rotten timber is replaced, and the deck is prepared.
3
Insulation & deck
PIR insulation laid to meet current U-values where appropriate, then a fresh ply or OSB deck on top.
4
Membrane install
EPDM laid as a single sheet for zero seams, GRP laminated in situ for a seamless finish, or modern torch-on felt for tight detailing.
5
Trims, upstands & drainage
All edges, upstands and outlets dressed properly. The detailing is what makes the difference between a 25-year roof and a 10-year roof.

Why choose All Topps for flat roofing

We're an Aylesbury-based team and flat roofing is one of our most-requested jobs locally - from garage roofs in Bedgrove and Watermead to extension roofs in Berryfields and Fairford Leys. We don't just default to one system because it's what we know - we choose the right product for the job.

EPDM for large garages where a single seamless sheet wins, GRP for bay roofs and porches where the finish needs to look smart, modern felt where complex upstands and detailing matter. Every flat roof we fit in Aylesbury and across Buckinghamshire comes with a written guarantee, and the EPDM and GRP systems we use carry manufacturer warranties of 20 years and upwards.

We've also seen plenty of botched flat roofs over the years, so if you've inherited one that's leaking, we'll give you a straight answer on whether it's repairable or whether a full overlay is the better spend.