
Flat Roofs
Flat roofing
Extensions, dormers, garages and outbuildings, re-covered to shed water.
Ask about flat roofs
Tell us what is happening and we will come and look.
The work
Flat roofs that drain
Almost every failed flat roof we look at has the same two problems: no fall, so water sits, and no insulation upgrade, so the deck stays cold and sweats. Ponding then finds the weakest lap, and the ceiling below tells you about it.
We rebuild flat roofs from the deck up. Firrings or a tapered scheme set the fall, insulation goes in to current standards where the build-up allows, and the covering is chosen to suit the roof: high-performance felt, EPDM rubber, or fibreglass where the detailing is complicated.
- Falls are formed properly, which is what actually stops a flat roof failing.
- Deck repairs are shown to you before they get covered up.
- Three systems offered, so you are not sold whichever one we happen to prefer.
- Extension and dormer roofs detailed into the main roof, not butted up against it.

Why TJM
Why customers choose us
- A family-run business that has built up an enviable reputation across West London.
- Over 25 years of experience on roofs, roofline, brickwork and the ground around the house.
- High standards on every job, whatever its size, from a slipped tile to a full re-roof.
- Affordable pricing, with the figure in writing before any work starts.
- Our goal is to meet and exceed the expectations of every customer.

What's included
What flat roofs covers
The price
Flat Roofs costs
What flat roofs costs comes down to what you actually have, not a price list. Two jobs that sound identical can be an hour of work or a week of it, which is why we do not price roofing over the phone. We come and look, then put a figure in writing.
- Area, and how much of the deck needs replacing.
- The covering: felt, EPDM and GRP each price differently.
- Insulation thickness, and whether upstand heights allow it.
- The number of upstands, outlets and abutments to detail.
Next step
Get a price for flat roofs
Send the form or ring us. We will come and look at what you actually have, then put a figure in writing.
Our work
Read the reviews, then look at the jobs
What customers have said about the work, collected from the places they left it.
Read customer feedback straight from our MyBuilder profile, where every review is tied to a job we were hired for, and see finished work on Instagram as it comes off the scaffold.
How it works
How a flat roofs job runs

Step 01
Get on the roof
We check the deck by walking it and looking underneath, so the quote reflects the real condition.

Step 02
Recommend a system
Felt, rubber or fibreglass, with the reason for the recommendation and the price of each.

Step 03
Strip and rebuild
Deck sorted, falls formed, insulation and covering laid in one continuous run of work.

Step 04
Check and clear
Outlets tested, trims finished, and the old covering taken away.
Questions
Flat Roofs: common questions
The questions we get asked most often about this work. Anything else, ring and ask.
Still not sure? Ring and ask. It is usually quicker than typing it out, and you will speak to the person who would do the work.
How long should a flat roof last?
Can you just patch it?
Which is better, rubber or felt?
How much fall does a flat roof need?
Can an existing flat roof be insulated?
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Related work
Where we work
Roofers across West London
We work across the west London boroughs and the towns along the river. If you are just outside the list, ring and ask. We will tell you straight whether it is a journey we can make work.
- Ealing
- Northfields
- Acton
- Chiswick
- Shepherds Bush
- Fulham
- Hounslow
- Kew
- Richmond
- Twickenham
- Hampton
- Kingston



