Finished grey flat roof with a roof lantern on a rear extension

Felt, Rubber & Fibreglass

Flat Roofs in Buckinghamshire

Get a dry, well-drained flat roof on your extension, garage or dormer, with an honest view on repair or replacement and a fixed price in writing.

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Flat Roofing

Flat Roofs That Shed Water

Flat roofs cover many extensions, garages and dormers, and they are rarely completely flat. A gentle fall carries rainwater to the gutter or outlet, and when that fall is wrong or the covering wears, water sits on the roof and finds its way in.

We repair and replace flat roofs in three main materials: torch-on felt, rubber (EPDM) and fibreglass (GRP). After looking at your roof, we tell you whether a repair will hold or whether a new covering is the better value, and set the price out in writing.

A replacement is also the chance to fix what lies beneath: rotten decking boards, poor falls or missing insulation. For homes in High Wycombe and Beaconsfield wanting a single sheet with very few joints, our rubber roof service is worth a look.

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Roofer working on a small flat roof over a bay

Old felt being stripped from a flat roof over a bay

Finished flat roof with a vent and roof light at dusk

Types of Flat Roofs

Flat Roof Materials We Fit

Each flat roof covering has its own strengths. Choose the page that matches the roof you have now or the finish you want, and see how we install it.

Felt Roofs

Hard-wearing layers, cost-effective

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Rubber Roofs

One flexible sheet, very few joints

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Fibreglass Roofs

Rigid, jointless, light foot traffic

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Roofer pressing down a newly laid flat roof membrane

Flat Roofs: What's Included

Our Flat Roof Work Covers

From a small garage roof to a large rear extension, your flat roof quote sets out the covering, the base beneath it and the edge details in writing.

Repairs to splits, blisters and leaking joints
Full replacement in felt, rubber or fibreglass
New decking boards where the old ones have rotted
Falls corrected so rainwater drains away properly
Insulation added to keep the room below warmer
Edge trims, upstands and outlets finished neatly
Roofs for extensions, garages and dormers

Why Choose Us for Flat Roofs

A flat roof that keeps failing costs more over time than one that is put right once, so we start by finding out exactly why yours is letting water in.

Flat roof on a house extension with a glazed roof lantern

Repair or Replace, Honestly

We tell you plainly whether a repair will see your roof through or whether replacement is the better value, and the reasons go in writing.

Falls Put Right

Water left sitting on a flat roof shortens its life, so we correct the falls and make sure rain runs off to the outlet.

A Price That Holds

You pay the figure on the quote you accept. Any hidden problem, such as rotten decking, is shown to you and agreed first.

Days Agreed Up Front

Before work begins you know which days the team will be on site, so you can plan around the work on your extension.

Ready to Get Started?

Ring Royale Roofing Ltd, or leave your details for a quote.

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Reviews

Flat Roof Customer Reviews

Book a Flat Roof Survey

Ring now, or leave a few details and a quote will follow.

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Our Work

Our Flat Roof Projects

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Flat Roofs: How It Works

Replacing a Flat Roof

Flat roofs vary in size and construction, but a replacement generally follows these four broad stages.

Inspection & Advice

We check the covering, the deck beneath and the falls, then advise on repair or replacement and price it in writing.

Stripping Back

The old covering is removed and the decking boards checked, with any rotten boards replaced and the falls adjusted.

New Covering Laid

Insulation goes down where agreed, then the felt, rubber or fibreglass is laid and finished with trims and upstands.

Checking It Together

After the outlets are clear and the site has been tidied, we review the completed work with you and confirm everything has been done as agreed.

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Flat Roofs FAQs

Flat Roof FAQs

What Is the Difference Between Felt, Rubber & Fibreglass?

Felt is built up in bonded layers with a mineral top sheet and is a cost-effective, hard-wearing choice. Rubber (EPDM) is a single flexible sheet with very few joints. Fibreglass (GRP) is laminated on site into one rigid, jointless surface. We explain which suits your roof's size, shape and use before you decide.

Should I Repair or Replace My Flat Roof?

A local split or a single failed joint can often be repaired. If the covering is cracking, blistering or leaking in several places, or the deck underneath has gone soft, replacement is usually the better value. We give you an honest view after a proper look, with both options priced if each could work.

Why Does Water Pool on My Flat Roof?

Pooling usually means the roof's fall is too shallow or the deck has sagged, often because timber underneath has softened. Standing water speeds up wear on any covering. When we replace a flat roof we can correct the falls with firrings or tapered insulation so rain drains towards the gutter or outlet.

Can You Add Insulation When Replacing a Flat Roof?

Yes. Replacing the covering is the most practical time to insulate, because the roof is already open. Adding insulation above the deck can make the room below noticeably warmer and reduce condensation. If you want it, the insulation appears as a separate line on your written quote.

Do You Work on Garage & Dormer Flat Roofs?

We do. As well as extensions, we cover garage roofs and the flat tops of dormers, where access can be tighter and the edges need careful detailing against the main roof. The approach stays the same: a proper inspection, an honest recommendation and one fixed figure agreed before we start.

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