New felt flat roof with roof lanterns on a house extension, flat roofing in Glastonbury

Flat Roofing
in Glastonbury
& Somerset

Replace a leaking, ponding flat roof with a seamless EPDM, GRP or felt system built to shed water, fitted once, properly, at a fixed price.

10 years
Roofing experience
9.96/10
Checkatrade rating
£1 million
Public liability
Free
Homeowner inspections
Fixed
Prices, no day rates
Overview

Flat roofs that stay dry year after year

Flat roofs cover extensions, garages, dormers, porches, bay windows and outbuildings. Because they shed water slowly, any weakness in the covering or the deck beneath it shows up as a leak far sooner than on a pitched roof.

We install and replace three systems: traditional torch-on or built-up felt, EPDM single-ply rubber, and GRP fibreglass. Each suits different situations, and Travis will explain which fits your roof, its use and your budget.

Most flat roofs we replace failed because of poor falls, a rotten deck or badly finished edges and upstands, not because of the membrane itself. A new covering laid over those problems will fail again. That is why we inspect the deck, check the falls and detail every edge properly.

Recent work

Flat Roofing we've completed

Newly felted flat roof with three roof lanterns behind a stone parapet, flat roofing in SomersetNewly installed mineral felt flat roof on a garage, flat roofing in Somerset
See all our work
The risk of waiting

Why failing flat roofs get expensive quickly

Flat roofs hold water. Once it gets in, it has nowhere else to go.

Deck rot

Chipboard and timber decks soak up water and lose strength, turning a covering replacement into a full rebuild.

Ponding

Standing water accelerates wear on felt and exposes every weak seam.

Leaks into living space

Extension ceilings, kitchens and garages are often directly below flat roofs.

Cold bridging and condensation

Poorly insulated flat roofs can drip from the inside even when the covering is intact.

Edge and upstand failure

Most leaks start at junctions with walls, gutters or skylights rather than the middle of the roof.

Common mistakes homeowners make

  • Painting a cracked felt roof with a coating instead of tackling the cause.
  • Laying a new membrane over a soft or rotten deck.
  • Ignoring the falls, so water continues to pond on a brand-new roof.
Warning signs

Signs you need flat roofing

  • Puddles that sit on the roof for days after rain
  • Blisters, splits or cracks in the felt surface
  • Damp patches on the ceiling of an extension or garage
  • A soft or spongy feel when the roof is walked on
  • Edge trims lifting or gaps at wall junctions
  • Moss and vegetation growing on the roof surface
Pricing

What affects the price

We don't publish prices because every roof is different. After a free inspection you get one fixed price. These are the things that shape it.

Roof area

Larger roofs need more material but often cost less per square metre than small, fiddly ones.

System chosen

Felt, EPDM and GRP have different material and installation costs, and we'll explain the trade-offs.

Deck condition

Soft or rotten decking has to be replaced so the new covering lasts. We check this during the inspection.

Details

Skylights, outlets, upstands and wall junctions add work, but they matter most for keeping water out.

Our process

How we handle your flat roofing

  1. 01

    Inspection

    Deck, falls, edges, upstands and drainage checked and photographed.

  2. 02

    System recommendation

    Felt, EPDM or GRP recommended to suit the roof, with a fixed price.

  3. 03

    Strip and deck

    Old covering removed and any damaged decking replaced, with falls corrected where needed.

  4. 04

    New covering

    Membrane or laminate installed with properly detailed edges, trims and upstands.

  5. 05

    Water test and tidy

    Drainage checked, site cleared and photos shared.

What you get

The benefits, in plain terms

Seamless protection

EPDM and GRP give a single continuous surface with no joints for water to find.

Low maintenance

Modern systems need little more than keeping gutters and outlets clear.

Better drainage

Corrected falls stop ponding and extend the life of the roof.

Neat finish

Clean trims and edges that suit modern extensions and garden rooms.

Fixed price

Deck condition assessed up front, so the quote reflects the real job.

Guaranteed

Written guarantee on the completed flat roof.

In detail

Felt, EPDM or GRP: choosing the right flat roof

Each flat roofing system has strengths. Here's how they compare for typical Somerset homes.

“From initial quote to completed work was quick, all work that needed to be done was well explained and good options offered on how to proceed. Travis is a very polite young man and the work was done to a very good standard.”
Checkatrade customer · BA6 · Checkatrade

EPDM rubber roofing

EPDM is a synthetic rubber membrane laid in a single sheet wherever possible. It stays flexible in cold weather, resists UV and handles the expansion and contraction of a roof well. It suits garages, extensions and garden rooms, and can be repaired neatly if ever damaged.

GRP fibreglass roofing

GRP is a glass-reinforced polyester laminate applied in liquid form over a board deck, then finished with a topcoat. It creates a hard, seamless surface that handles light foot traffic, which makes it popular for balconies, dormers and complex shapes.

Torch-on and built-up felt

Modern felt systems are a big improvement on older single-layer felt. Multi-layer torch-on systems with a mineral cap sheet are robust and cost-effective, and well suited to larger roofs and outbuildings.

Decks, falls and insulation

A flat roof is only as good as what it sits on. We check for soft decking, correct falls with firrings where needed, and can discuss insulation options such as warm-roof build-ups to reduce condensation and heat loss.

Garages, dormers and extensions

From single garages in Street to rear extensions in Wells and dormers in Frome, the principles are the same: a sound deck, good drainage and properly detailed edges. The covering is chosen to suit how the roof is used and seen.

Why homeowners choose Travis

Why choose TB Property Maintenance and Roofing for flat roofing

You deal with the roofer, not a salesman

When you call about flat roofing, you speak to Travis. He inspects the roof, prices the work and carries it out himself, bringing in trusted labourers only on larger jobs. There's no handover between a surveyor, an office and a crew, so nothing gets lost along the way.

Evidence before every decision

You see photos of the problem before you're asked to spend anything. If extra work turns up once the job starts, you're shown the evidence and the options before anything changes. One customer put it simply: he kept them informed of any extra work needed, with evidence.

A fixed price, not a day rate

Every flat roofing job is quoted at a fixed price after a free inspection. You know the full cost up front, and it doesn't creep up if the job takes longer than expected. Travis prefers not to publish prices online, because guessing without seeing the roof helps nobody.

Reviewed, insured and accountable

TB Property Maintenance and Roofing is a Checkatrade member rated 9.96/10 by verified customers, with £1 million public liability insurance. Work is guaranteed, and the terms for your job are confirmed in writing with the quote. Reviews regularly mention turning up on time, working tidily and finishing on budget.

Local knowledge

Flat Roofing across Glastonbury & Somerset

Rear extensions, garages and dormers are everywhere in Street, Bridgwater and Weston-super-Mare, and many still have original felt roofs that are now failing. Replacing them with EPDM or GRP gives a cleaner finish and a roof that needs far less attention.

Our flat roof work includes full replacements on outbuildings and extensions. Checkatrade customers mention the communication, the tidiness and the finished result.

Every job is handled by Travis Biddle personally, with 10 years in the trade, £1 million public liability insurance and a 9.96/10 Checkatrade rating. You get a fixed price after a free inspection, photo evidence of any problem, and nothing added without your agreement.

FAQs

Flat Roofing questions, answered

Can't see yours? Call Travis on 07916 735568.

01

How much does a new flat roof cost?

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It depends on size, the system chosen and the condition of the deck. We give a fixed price after a free inspection.

02

Which is better: EPDM, GRP or felt?

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Each suits different roofs. EPDM is flexible and low-maintenance, GRP is hard-wearing and seamless for walked-on areas, and felt is a robust, cost-effective option. We'll recommend the best fit.

03

How long does a flat roof replacement take?

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Most garage and extension roofs are completed in a short time, weather permitting. You get a timescale with your quote.

04

Can you repair rather than replace my flat roof?

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Sometimes. If the deck is sound and damage is localised, a repair can make sense. We'll tell you honestly after the inspection.

05

Why does my flat roof leak when there's no visible damage?

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Leaks often start at edges, upstands or outlets, or come from condensation inside the roof. The inspection identifies which.

06

Is the work guaranteed?

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Yes. Flat roofs come with a guarantee, confirmed in writing with your quote.

07

Do you replace garage roofs?

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Yes, garage roofs are one of the most common flat roofs we replace.

08

Do you cover flat roofing outside Glastonbury?

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Yes. We cover Street, Wells, Shepton Mallet, Frome, Trowbridge, Bridgwater, Cheddar, Somerton and Weston-super-Mare.

A flat roof that
finally stays dry

Book a free inspection. You'll see photo evidence of the problem and get a fixed price before anything is done.

  • £1 million public liability insurance
  • Checkatrade member, rated 9.96/10
  • Fixed prices, no day rates
  • Guaranteed work, confirmed in writing
Call Travis direct07916 735568
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