Walk around Cwmbran and you will notice how many houses have a flat roof somewhere on them. Garages, porches, kitchen extensions and side additions were all part of the post-war housing, and plenty more were added by owners later. Flat roofs have no pitch to shed water quickly, so any weakness shows up sooner than it would on a tiled roof, and a small defect can turn into a wet ceiling within a single bad winter.
Flat Roofing South Wales covers Cwmbran and the villages around it, including Pontnewydd, Thornhill and Croesyceiliog. We repair what can sensibly be repaired and replace what cannot, and we explain which is which. You get a written quote covering the whole job, including the deck, edges and rainwater details, so there are no surprises once the work starts.
The housing here is largely from the 1950s to the 1970s, and many homes came with an integral or attached flat-roofed garage. Over the decades, those garages have often been converted into extra rooms, or had an extension built on top, so the flat roof has quietly become part of the living space. A leak is no longer just a damp garage, it is a wet ceiling in a room people use.
Extensions and porches are the other common flat roofs. Rear kitchen extensions, utility rooms and small porches are found across Llanyrafon, Greenmeadow and Two Locks, and shops and small commercial units around the town have them too. Many of these were built with whatever covering was to hand at the time, and have been patched more than once since.
Cwmbran gets a lot of rain, often driven across the valley by wind, and it also sees frost in winter. Water sits in any low spot, soaks into seams and gets under laps. Cold and heat then open the cracks a little more each year. Blocked outlets, split joints and failed edges and upstands are the usual causes of leaks, rather than the middle of the roof itself.
A single sheet of rubber with very few joins, which suits roofs of simple shape like garages and small extensions. It is flexible, handles movement and weather well, and is quick to lay once the deck is prepared.
Laid in place as a seamless, hard-wearing surface, GRP suits awkward shapes, roofs with lots of upstands, and roofs people walk on. It is a good choice for porches, balconies and dormer flats in Cwmbran.
Modern torch-on or bonded felt in multiple layers is a proven covering and can be the sensible option on larger roofs or where the budget needs to stretch. It needs good detailing at edges and laps to last.
Finding the source of a leak is the hard part, because water often travels along the deck or the ceiling before it shows. We look at outlets, joints, edges, upstands and any penetrations like rooflights and pipes. If the problem is local and the rest of the covering is sound, we repair it and say so. A small fix is a fair answer when that is what the roof needs.
Where the covering is blistered, cracked or soaked through, repairs only buy a short delay. In that case we advise replacement, and check the boards and insulation underneath, because wet decking should not be covered over. On older Cwmbran garages and extensions, that check often decides the job. We show you what we find and explain the options.
At Flat Roofing South Wales, we provide professional flat roofing installation, replacement and repair services throughout South Wales, helping homeowners, landlords and businesses maintain watertight and dependable roofs.
Often, yes. A leak that only appears in heavy rain usually points to a split joint, blocked outlet or failed edge, which can be repaired. We will check the deck for damp first. If the covering is tired across the whole roof, we will say replacement is the better route.
Yes, and it needs to be done carefully because the room below is now lived in. Insulation, ventilation and a sound deck matter more. We build the roof to suit how the space is used. Work may need Building Regulations or planning checks, and we advise before work starts.
For a small porch, GRP fibreglass or EPDM rubber are both sensible, since they have few or no joins to fail. GRP copes well with awkward upstands, and EPDM goes down quickly on simple shapes. We recommend whichever suits your porch shape and finish.
Yes. Small shops, offices and workshop units around Cwmbran often have flat roofs, and we repair and replace them in the same way. We plan the work around opening times where we can, so the business keeps running as normally as possible.
If water is coming in, call us and tell us what is happening. We will arrange a visit as soon as our diary allows and make the roof watertight first, then talk through a lasting repair or replacement once the immediate problem is under control.
Tell us about the job and we'll get back to you — usually the same day.
Prefer to talk? Call 07766 547309.
