EPDM, GRP and felt flat roofs for garages, extensions and dormers
Flat Roofs in Horwich
No Hidden Fees
Rated 4.9 from 350+ Google reviews
Experienced Roofing Company
Available 24 Hours a day
07403 931 974
Flat roof repairs and replacements in Horwich
Flat roofs have a bad reputation, mostly because old felt ones were never built to last. Modern systems are a different story. We install and repair flat roofs in Horwich using EPDM rubber, GRP fibreglass and torch-on felt, choosing the right system for each roof rather than one for everything.
Garages, kitchen extensions, porches and dormers all rely on a flat roof that drains properly. When one fails, water tends to pond, find a weak spot and drip through to the room below. We repair what can be repaired and replace what can't.
Our quotes are free and come with no obligation. With over 20 years' experience, we'll tell you plainly whether your flat roof has more life in it or needs replacing.
- Available 24/7 for emergencies
- Free, no-obligation quotes
- Rated 4.9 from 350+ Google reviews
- Fully insured, all work guaranteed
Free flat roofs quote in Horwich
Call 0800 046 1159 or send us a few details and photos.
Emergency line: 07532 734934
Flat roof options
EPDM rubber
A single-sheet rubber membrane with few joints, well suited to garages and extensions.
GRP fibreglass
A hard-wearing, seamless finish that works well on dormers, balconies and roofs with detailing.
Torch-on felt
Modern multi-layer felt systems, far tougher than the old felt many garage roofs still have.
Flat roof repairs
Splits, blisters, failed upstands and ponding sorted, with honest advice on whether repair is worthwhile.
Flat roofs around Horwich
Across Horwich we see plenty of flat roofs on garages and rear extensions, especially on the larger estates and newer housing around Middlebrook. Wind off Winter Hill can lift poorly bonded edges and trims, and heavy rain quickly shows up any area where water sits. On older terraces near the Loco Works, we often find small flat roofs over rear kitchens or outriggers that have been patched more than once.
We cover all of BL6 plus Blackrod, Lostock, Westhoughton, Adlington and Rivington. From our Manchester base it's around 15 miles to Horwich, which keeps call-outs straightforward.
How we approach a flat roof job
First we look at why the roof failed. Is it age, poor drainage, rotten decking or a badly detailed edge? Simply laying a new surface over a soft deck or a roof with no fall won't last. Where needed, we replace the boards and build in a proper fall so water runs off.
Then we recommend a system and give you a written quote. Most garage and extension roofs are finished in a day or two, weather permitting. Call 0800 046 1159 to arrange a visit.
Flat roof FAQs for Horwich
Which is better for a garage: EPDM or GRP?
Both are good. EPDM is a flexible rubber sheet, usually quicker to fit on a simple rectangular garage roof. GRP gives a rigid, seamless finish that suits roofs with more corners and details. In exposed Horwich spots, the key is good edge trims and a properly bonded surface. We'll recommend whichever suits your roof best.
My flat roof has water sitting on it. Is that a problem?
Small puddles that dry within a day or two aren't unusual. Water that sits for longer puts strain on the surface and seams and often signals a sagging deck. When we replace a flat roof, we can build in a better fall to stop ponding happening again.
Can you repair a felt garage roof rather than replace it?
If the damage is local, such as a split or a lifted edge, a repair can work. If the felt is cracked all over, blistered and the boards are soft, replacement is usually better value. We'll check the deck as well as the surface before recommending either.
Do you replace the timber decking too?
Yes, when it's needed. Rotten or soft decking is a common reason flat roofs fail, and laying new covering over it won't last. We replace damaged boards before fitting the new roof, and the quote will show this clearly.
Can you do the flat roof on a dormer?
Yes. Dormer roofs are usually small but awkward, with tight upstands against the main roof. GRP or EPDM both work well. We pay particular attention to where the dormer meets the slates or tiles, as that's often where leaks start.
Will I need planning permission to replace a flat roof?
Replacing a flat roof like for like doesn't normally need planning permission. If you're changing its height or shape, or you're in a conservation area, check with Bolton Council first. We can explain what's changing so you know whether to ask.
Other roofing services in Horwich
Flat roof letting you down?
Call 0800 046 1159 for a free flat roof quote anywhere in Horwich and BL6.
Our Mission
Why Choose Us? Local Manchester Roofers
With many years experience in roof installation and repairs, we aim to be best placed for roof work you require.
Our clients benefit from a skilled workforce with a track record of integrity and professionalism and all our roof installation services are of high quality and cost effective.
We’re fully insured with public liability insurance, offering competitive prices and a guarantee. This ensures we remain a highly recommended choice for roofers in the Greater Manchester area.
You can rely on our expertise and professionalism when it comes to quality roof fitting and repairs.
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Please note, emergency callouts may result in an additional charge for the roofing work. Please speak to us to get a price quote.
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