Flat Roof Repairs · Uxbridge UB8
Flat Roof Repairs In Uxbridge
Has the side extension on your Uxbridge semi started to leak?
Flat roofs on Metroland semis, garages and town-centre flats in Uxbridge, Hillingdon Hill and Cowley
The 1930s semis that spread out from Uxbridge along the Metropolitan and Piccadilly lines were built with a garage at the side or room for one. Over the years many of those garages became kitchens, playrooms or a downstairs bedroom, and the flat roof on top stayed much as it was. Add the small flat roofs over front bays and porches and most semis around Hillingdon Hill and Cowley have two or three. When one leaks, the real choice is often between a new rubber sheet and a liquid coating over what's there. We'll tell you which suits your roof, and we won't coat over something that needs replacing.
Flat Roof Repairs in Uxbridge - free survey
Pop your details in and we'll call you back to book the survey. It costs nothing, it obliges you to nothing, and if the honest verdict is that your roof needs no work, that verdict is exactly what you'll get.
Who runs Watertight
Uxbridge flat roofs: a firm that doesn't stall
Uxbridge is at the far end of the area we cover, so it helps when a repair isn't waiting on one person. Watertight is run by John and Mark, who are brothers, and both know each job inside out.
If one of them is off or on another roof, the other usually picks things up. They also go through the numbers together on a quote, so the price for your garage or extension roof has had two looks.
10 years
Written workmanship guarantee
Free
Surveys, quotes and second opinions
Same day
Response aim for active leaks
TW5 based
Minutes from most of the patch
From garage to living space
A garage roof only had to keep the rain off a car. Once that garage becomes a room, the same roof sits over a heated space with people in it, and the old deck has no insulation and no vapour control. That's when condensation starts, and when small leaks matter much more. We see this a lot on Uxbridge's Metroland streets, where converting the side garage has been a popular way to add space without a full extension.
In the town centre and at St Andrew's Park the flat roofs are newer and bigger, usually managed by a freeholder or management company. On the semis, the roofs belong to you. The same houses have a shared central chimney, which our chimney repairs in Uxbridge page covers.
Uxbridge flat roofs, our way
Converted garages insulated
If a garage is now a room, we can add insulation and a vapour control layer under the new covering to stop condensation.
Coating only when it's sound
A liquid coating can extend a sound roof's life. On a wet or failing deck it just hides the problem, so we won't use it there.
Bay and porch roofs too
We repair the small flat roofs on the front of Uxbridge semis neatly, since they're on show.
Edges and gutters checked
Flat roofs on side extensions often drain into a gutter on the main house. We check the whole route.
Honest about distance
Uxbridge is about twenty minutes away, and we plan visits so you're not waiting on travel.
Ten-year guarantee
Our written workmanship guarantee applies to every flat roof we replace.
"On converted garages we survey around Uxbridge, the roof above the new room has usually never been insulated - and condensation is often the first complaint, not a leak."
Watertight Roof Repairs Hounslow - Uxbridge flat roof repairs jobs
Fixing a flat roof in Uxbridge
What's under the roof?
Garage, converted room or porch? That decides whether insulation and vapour control need to be part of the job.
Deck and moisture check
We test the deck, check for trapped moisture and inspect edges, outlets and the junction with the house.
Coat, recover or rebuild
A fixed price for the right option, with a clear reason why. If a coating would be a waste, we say so.
Finished and photographed
Most garage and extension roofs are done in a day or two, and we send you photos of the completed work.
The guarantee is a document, not a phrase
"All work guaranteed" costs nothing to say, which is why every van in west London says it. What matters is whether anything gets written down. Work arranged through Watertight Roof Repairs Hounslow comes with a 10 year workmanship guarantee as an actual piece of paper - dated, signed, specific to your job - handed over alongside the completion photos. Materials carry their manufacturers' own cover on top, which varies by product, so your paperwork names what applies to yours instead of waving at a number.
A guarantee that long is only affordable if the repairs don't come back - so it shapes how the work is done. Failed material comes off rather than getting covered over. Replacement tiles and slates go on with fixings specified for a roof that lives under the Heathrow approach, not the minimum the 1930s got away with. Junctions get lead. And anything we find that we can't fix that day gets photographed and said out loud, because surprises kept from you now become our problem within 10 years.
Plainly: if water gets back in through work we've done, we return and put it right at no cost, for a decade. Ask any firm quoting against us to match that in writing - it's an interesting conversation to watch.
10 yrs
Workmanship, in writing
£0
Cost of a return visit under it
Insured
Public liability in place
Named
Manufacturer cover per job
Ask these before any Uxbridge flat roof work
Is the deck dry?
A liquid coating over a wet deck seals the moisture in. Ask how they've checked.
Does the room below need insulation?
If the garage is now a room, the roof should be treated as part of the house. Ask what's included.
What warranty comes with a coating?
Coating systems vary a lot. Ask which product and what cover comes with it, separate from the workmanship guarantee.
EPDM sheet or liquid-applied coating in Uxbridge
Two popular options for garage and extension roofs on Uxbridge's semis. They suit different situations.
| Comparison point | New EPDM membrane | Liquid-applied coating |
|---|---|---|
| Suits | Roofs that need a full replacement or new deck. | Sound, dry roofs needing extra life. |
| Old covering | Removed, deck inspected. | Usually stays in place underneath. |
| Detail work | Needs care at corners and edges. | Flows around pipes and awkward shapes easily. |
| Insulation | Easy to add when the deck is open. | Not usually part of the job. |
| Risk | Low, if fitted well. | High if laid over a wet or failing deck. |
Flat roof prices in Uxbridge
A coating on a sound garage roof can be a few hundred pounds. A new EPDM roof with insulation over a converted garage is usually low thousands. These Uxbridge factors make a difference:
Converted garage insulation
Adding insulation and a vapour control layer raises the cost but makes the room warmer and stops condensation. Building regulations may require it on a larger renewal.
Deck condition
If the original 1930s deck has rotted, it needs replacing. We show you photos and price it by the sheet.
Flats in the town centre
For apartments, costs are usually shared through a service charge. We can provide reports and quotes to managing agents.
Around Uxbridge between jobs
Uxbridge mixes history with countryside. Three places to visit.
Battle of Britain Bunker
Learn more about Battle of Britain Bunker on Google Maps
The Colne Valley & Fassnidge Park
Learn more about The Colne Valley & Fassnidge Park on Google Maps
Little Britain Lake
Learn more about Little Britain Lake on Google MapsUxbridge, UB8
about 20 minutes from base. Planning authority: Hillingdon Council.
Flat Roof Repairs in Uxbridge: your questions
Why does the ceiling in my converted Uxbridge garage get wet in winter?
Often it's condensation, not a leak. Warm air from the room reaches the cold underside of the uninsulated deck and condenses. When we replace the roof we add insulation and a vapour control layer, which normally solves it.
Is a liquid coating a good idea for my flat roof?
Sometimes. On a sound, dry roof, a quality coating can add years. On a roof with a wet or rotten deck it just hides the problem and can trap moisture. We check the deck before recommending it.
Do I need planning permission for a flat roof in Uxbridge?
Like-for-like replacement on a house doesn't. Hillingdon Council's Old Uxbridge/Windsor Street conservation area and the design controls at St Andrew's Park mean changes there may need checking. Most Metroland streets have no constraint. Renewing most of a heated roof may need building regulations approval for insulation, which we'd include.
Can you fix the small flat roof over my bay window?
Yes. Bay roofs on 1930s semis are usually felt or lead. We repair or replace them and make sure the junction with the wall above is sound, since that's where many bay leaks start.
How far out of your way is Uxbridge?
It's the far edge of our area, about twenty minutes by the A40 or M4. We cover it regularly and plan visits to avoid long waits.
What the patch says about us
Homeowners from Cranford to Hayes on how their jobs actually went.
"Woke up to tiles all over the front garden and not a breath of wind - couldn't work it out. They came the same morning, made it safe, and were the ones who told us it looked like vortex damage from the planes and that Heathrow has a scheme for exactly this. Helped us photograph everything properly for the claim. Could easily have just charged us for a repair and said nothing. That honesty is why I'm writing this."
"Our loft conversion started leaking around the dormer two winters after the conversion company vanished. Two roofers quoted big money to strip the whole dormer roof. These guys traced it to one badly-lapped flashing on the cheek, showed me the photo, fixed it in half a day. It's been through every storm since bone dry. The difference was they looked before they priced."
"Called them expecting to be told the roof needed doing - the house is 1936 and the ridge had been dropping mortar crumbs for a while. Survey verdict: re-bed the ridge, replace five tiles, and the rest is good for years yet. They even marked two tiles to keep an eye on. Quote was a fifth of what I'd braced for. When the roof does eventually need doing, they've earned that job."
"Water started coming through the back bedroom ceiling at 7am on a Sunday. Rang around - one lot quoted a £180 call-out before they'd even start. This firm answered, talked me through switching off the lights circuit and where to put the buckets, and was here by half nine. Told me the Sunday rate up front, made it dry, came back Tuesday and did the proper repair for a very fair price. Kept every promise they made on the phone."
"Had the fascias, soffits and gutters done on our terrace. What sold me was the survey - they pushed a screwdriver into the old boards to show me which were actually rotten and which were fine, then quoted to replace only what needed it. Other quotes were for capping over the lot, which they explained the problem with. Work was neat, gutters run properly for the first time in years, and the guarantee arrived as a proper document."
Had us out to your roof?
Two minutes writing a review does more for a small local firm than any advert we could buy - and it helps the next west London household with a drip find someone straight.
Areas we cover
Flat Roof Repairs by town
All services
Get an honest view of your Uxbridge flat roof
We'll check the deck, tell you whether coating, recovering or rebuilding makes sense and give you a fixed price for it.