
Fibreglass Roofs in Wokingham & Berkshire
A fibreglass flat roof laid as one continuous sheet with moulded trims, giving your extension or garage a smooth finish with no seams to leak.
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Joint-Free Fibreglass (GRP) Roofing
Fibreglass, also called GRP, turns a flat roof into a single, continuous surface. Resin and glass matting are laid over a sound deck and set hard as one sheet, so there are no laps or seams for water to find. It is one of the neatest ways to cover an extension, garage or dormer.
Pre-formed trims around the edges give clean lines and a proper drip, and upstands are formed in the same material as the roof so the corners are as watertight as the middle. The cured surface is tough, takes light foot traffic and is finished with a coloured topcoat.
Fibreglass needs a dry day and a sound deck to lay well, so the old covering comes off and the boards are checked or replaced first. You get a FREE, no-obligation quotation and an honest view on whether fibreglass or felt suits your roof better.
- No Joints or Seams
- Smooth, Clean Finish
- Takes Light Foot Traffic
- Low Maintenance




When a Fibreglass Roof Makes Sense
Old Felt Keeps Leaking
A felt roof that has been patched again and again is often worth replacing with a single fibreglass covering.
New Extension Roof
A new or rebuilt extension, dormer or garage needs a flat roof that looks neat and keeps the weather out well.
Water Sitting on Top
Pooling water on a tired flat roof wears it out quickly, and a new deck laid to a better fall lets it drain.
Cracked GRP Surface
Fine cracks or a crazed topcoat on an older fibreglass roof can let moisture into the layers beneath it.
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What a Fibreglass Roof Includes
- Old Covering Removed
- New Deck Boards Fitted
- Resin & Glass Mat Laid
- Pre-Formed Edge Trims
- Upstands Formed in GRP
- Coloured Topcoat Applied
Why Choose Us for Fibreglass Roofing
A FREE, no-obligation quotation, clear and honest advice, and work that is guaranteed and fully insured, from a Wokingham roofer rated 9.98 out of 10 on Checkatrade.

FREE, No-Obligation Quotations
Every quotation is FREE and comes with no obligation, so you can weigh up the work and the price before deciding anything.
Honest System Advice
You hear plainly whether fibreglass or felt suits your roof and its use before anything is agreed.
Neat, Quality Finish
Trims, corners and upstands are formed with care, so the finished roof looks clean and stays watertight.
Kept Informed
You know what is happening at each stage, including when the weather means waiting for a dry day to lay.
Work Guaranteed
Every job is guaranteed, so if anything is not right with the work, you have a local roofer to call back.
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Thinking About a Fibreglass Roof?
FREE, no-obligation quotes. Call today.
Homeowners Rate Union Roofing
Homeowners across Berkshire rate Union Roofing 9.98 out of 10 on Checkatrade, from 96 reviews of their new roofs, flat roofs, roof repairs and guttering work.
What Affects the Cost of Fibreglass
Every roof is different, so the price is worked out once the roof has been looked at rather than guessed over the phone. These are the things that move it.

FREE, No-Obligation Quotations
Every roof is looked at before it is priced, so the figure you get is the figure for your job. Your quotation costs nothing and commits you to nothing.
Size of the Roof
The roof area sets how much resin, matting and topcoat is needed, and how long the roof takes to lay.
Deck Replacement
Fibreglass needs a firm, dry deck, so damp or soft boards have to be replaced before the roof is laid.
Trims & Detailing
Roof lights, corners, upstands and long edges all add trims and detailed work to finish them properly.
Access & Height
A single-storey roof is simple to reach, while a dormer or upper roof may need a tower or scaffold.
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Ready to Price a Fibreglass Roof?
A FREE quotation with no obligation.
Fibreglass Roofing Across Berkshire
Based in Wokingham and covering Reading, Bracknell, Maidenhead, Windsor, Ascot and the towns between. If your town is not listed, call with your postcode.
- WokinghamBerkshire
- ReadingBerkshire
- BracknellBerkshire
- MaidenheadBerkshire
- WoodleyBerkshire
- EarleyBerkshire
- WindsorBerkshire
- AscotBerkshire
- SandhurstBerkshire
- CrowthorneBerkshire
- FinchampsteadBerkshire
- Henley-on-ThamesOxfordshire
How a Fibreglass Roof Is Laid
- Step 1
Assess the Roof
We look at the roof, the deck and the edges, and send you a FREE, no-obligation quotation.
- Step 2
Prepare the Deck
The old covering comes off and a sound, dry deck is laid ready for the fibreglass to go on.
- Step 3
Lay the Fibreglass
Trims are fixed, then resin and glass matting are laid and rolled out as one continuous sheet.
- Step 4
Topcoat & Tidy
Once cured, the coloured topcoat is applied, and all the waste is cleared from the property.
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Fibreglass Roof Questions Answered
What Does GRP Stand for on a Flat Roof?
Can Fibreglass Be Laid in Wet or Cold Weather?
Will a Fibreglass Roof Take Foot Traffic for Maintenance?
Is Fibreglass Worth It Over Felt for an Extension?
Can a Cracked Fibreglass Roof Be Repaired?
Can’t Find the Answer You’re Looking For?
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