5.0 on Google (21)9.68/10 on Checkatrade (41)24 hour call-out
Flat roof by McDermott Home Improvements

Flat roof repairs in Woking

Flat roof repairs in Woking for extensions, garages and dormers. Ring or tap for a free quote: one Woking customer's long-term damp was sorted in 24 hours.

Fix my flat roof 07858 459 392Free quote, no obligation. Shane comes out, finds the cause and talks you through the options.

Get a flat roof repair price

Tap the job. It takes about 30 seconds.

Or ring Shane on 07858 459 392, 24 hours a day.

5.021 Google reviewsCheckatrade: McDermott Home Improvements, 9.68 from 41 reviews9.68/1041 reviewsBark: McDermott Home Improvements, 5 from 11 reviews5/511 reviews
Expert Roofer Verified member
  • 25-year guarantee on re-roofs
  • Owner-run: Shane quotes every job himself
  • 24 hour call-out for leaks

Rather talk? Call free on 08000 465 507 or ring Shane on 07858 459 392, 24/7.

Google5.0 on Google21 reviews Checkatrade: McDermott Home Improvements, 9.68 from 41 reviews9.68/1041 reviews, Checkatrade vetted Bark: McDermott Home Improvements, 5 from 11 reviews5/511 Bark reviews
24 hour call-outLeaks and storm damage, 7 days
25-year guaranteeOn re-roofs, every job guaranteed
Expert Roofer Verified memberExpert Roofer VerifiedEvery check passed, see our profile
Signs to look for

Flat roof problems Shane repairs

Water sitting after rain

Ponding finds every weak spot and speeds up wear. It points to a sagging deck or poor falls.

Splits and blisters

Felt and asphalt crack in the sun and split in the frost. Small areas are patched; widespread cracking means a new covering.

Leaks at the wall or the edge

Failed upstands, flashings and drip edges let water in where the roof meets the house.

Worn flat roof before replacement, McDermott van below
How Shane does it

Repair it, or tell you it is time

Shane checks the covering, the edges and the deck. If the failure is local, he cuts out and repairs it, renews the flashing or resets the edge trim. If the boards underneath are soft, a patch will not last, and he shows you why.

Reviewers describe asphalt and felt roof repairs in Woking, Ash and Twickenham, and one Twickenham customer on a tight budget noted Shane kept the price at a minimum.

  • Covering, edges and deck checked
  • Splits and blisters repaired
  • Upstands and flashings renewed
  • Honest advice if the deck has gone
Our work

Flat roof faults and the fixes

Old flat roof covered in loose chippings, moss and weeds before replacement
Split in old flat roof felt at a joint
New grey flat roof covering on a single-storey extension
Mineral cap sheet rolled out over a torch-on flat roof
Roof vent sealed into a new mineral felt cap sheet on a flat roof
Reviews

Reviews from flat roof repair jobs

CCheckatrade customerAugust 2026 · Woking (GU22)Checkatrade review

Great service

Resolved a long term damp issue in 24 hours very honest and reliable company, would recommend …

Asphalt Roofing Repair
CCheckatrade customerJanuary 2025 · Twickenham (TW1)Checkatrade review

Felt roof repair

Great work carried out very helpful. kept price at a minimum due to a tight budget. Highly recommend

Felt Roofing Repair · £1,300 to £1,700 (as reported)
EEmrah KFebruary 2026 · Church Crookham (GU52)Checkatrade review

Flat roof/tile roof insulation

Work was completed and job well done. Thank you to reliable and honest people.

Pitched Roofing Repair
CCheckatrade customerDecember 2025 · Ash (GU12)Checkatrade review

Thank you Shane.

I literally can't thank Shane enough for quickly coming to the rescue over my leaking roof. He was absolutely brilliant and I mean BRILLIANT. Polite, reasonable, reliable, tidy and priotised his workload to make sure I wasn't left another day worrying. Shane is a sincere and honest (very rare) workman and I am very grateful for how quickly he was able to fix the problem. Thank you Shane.

Asphalt Roofing Repair
Straight answers

Flat roof repair questions

How much does a flat roof repair cost?

A Twickenham customer reported £1,300 to £1,700 on Checkatrade for a felt roof repair. Small patches cost much less. Shane prices yours after he has seen it.

Can a flat roof be repaired in the rain?

Torch-on and GRP need a dry deck. In an emergency Shane makes the roof watertight with a temporary repair and comes back in the dry to do it properly.

Repair or replace my flat roof?

Repair it if the deck is firm and the failure is in one area. Replace it if the boards are soft or the covering is cracked all over. Shane shows you photos either way.

Leak, slipped tiles or a roof you are worried about?

Tell Shane what is going on. He comes out, finds the real cause and gives you a fixed written quote.

Get my free quote Call 07858 459 392Free quote, no obligation. 24 hour call-out for leaks.
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