
Flat Roofs in Maidenhead
Felt and fibreglass flat roofs for garages, extensions and dormers in Maidenhead, laid on a sound deck with a FREE quotation.
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Felt & Fibreglass Roofs in Maidenhead
Maidenhead is about 9 miles from our Wokingham base, so flat roofs across Maidenhead (SL6) are well within reach. Garages, extensions, dormers and porches are covered, with any soft or rotten deck replaced before the felt or fibreglass goes down. Every job starts with a FREE, no-obligation quotation, and old materials are cleared away when the work is complete.
Most flat roof problems start at the edges and joints, or with water sitting on a deck that has lost its fall. A new flat roof begins with the old covering coming off and the deck checked, so the new one is laid on a surface that will last.
Torch-on felt is built up in layers and bonded to the deck for a tough, weatherproof finish. Fibreglass (GRP) is laid as a single sheet with moulded trims, so there are no joints for water to find.
- Joint-Free or Layered Finish
- Sound Deck Underneath
- Neat Edge Trims
- Water Runs Off Freely




Signs Your Flat Roof Needs Attention
Water Pooling on the Roof
Standing water long after the rain stops means the roof has lost its fall and will wear quickly where it sits.
Blistered or Cracked Felt
Bubbles, splits and bare patches across the surface show the covering is breaking down and letting moisture in.
Damp Patches Indoors
Staining on the ceiling under an extension or garage roof often traces back to a failed joint or upstand.
Soft Spots Underfoot
A deck that gives when walked on has usually taken on water and needs replacing before re-covering.
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What a New Flat Roof Includes
- Old Covering Stripped Off
- Deck Checked & Replaced Where Needed
- Felt or Fibreglass System Laid
- Upstands Sealed to the Walls
- Edge Trims & Drip Details Fitted
- Site Cleared on Completion
Flat Roofers Serving Maidenhead
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.
Felt or Fibreglass Advice
You hear the honest pros of each system for your roof, not just the one that is easiest to sell.
Fully Insured
The work is carried out fully insured, from the smallest garage to a full rear extension.
Kept Up to Date
You know what is happening at each stage, and the work area is kept clean and safe throughout.
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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Flat Roof in Maidenhead? Get a FREE Quote
FREE quotes across Maidenhead.
Flat Roof Customers in Berkshire
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.
Recent Flat Roof Projects
Photos of flat roofs work carried out for Union Roofing customers. Choose a photo to see it full screen.
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What Affects the Cost of a Flat Roof
Every roof is different, so the price is worked out once the roof in Maidenhead 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.
Roof Area
The size of the roof sets how much felt or fibreglass is needed and how long the job takes.
Felt or Fibreglass
The two systems differ in material cost and in the time taken to lay them.
State of the Deck
Boards that have taken on water need replacing before the new covering goes on.
Edges & Upstands
Roof lights, abutments and long edges add detail work to finish them properly.
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Ready to Price Your Flat Roof?
A FREE quotation with no obligation.
How Your Flat Roof Is Laid
- Step 1
Look at the Roof
We check the covering, the deck and the edges, then send a FREE, no-obligation quotation.
- Step 2
Strip & Check the Deck
The old covering comes off and any soft or damaged boards are replaced.
- Step 3
Lay the New Roof
Felt layers are bonded in place, or fibreglass is laid and set as one sheet.
- Step 4
Trims & Tidy Up
Edge trims and upstands are finished, then the waste is removed and the area is left tidy.
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Maidenhead Flat Roof FAQs
Do You Carry Out Flat Roofs in Maidenhead?
How Do I Get a Flat Roof Quote in Maidenhead?
Is Felt or Fibreglass Better for a Flat Roof?
Can You Fit a New Flat Roof on a Garage or Extension?
Why Is Water Sitting on My Flat Roof?
Can a Leaking Flat Roof Be Repaired Rather Than Replaced?
Do You Replace the Boards Under a Flat Roof?
Can’t Find the Answer You’re Looking For?
Call, message or email and you will get a straight answer.
More Roofing Services in Maidenhead
New RoofsA worn-out roof replaced from the rafters up in slate or tile, with new membrane, battens and ridge, and a FREE quotation before any work is booked.Explore New Roofs
Roof RepairsLeaks traced and fixed, slipped tiles replaced, ridges re-secured and chimneys and leadwork repaired, with a fast response to storm damage.Explore Roof Repairs