Rubber Roofing Mountain Ash
Fit it once, forget it for forty years - that is EPDM rubber done properly. K Williams Roofing installs seamless rubber roofs on garages, extensions and dormers across Mountain Ash.
- Free quotes
- Fully insured
- Fast response
- Local roofing specialists
EPDM Rubber Roofs for Mountain Ash
Every terrace in Mountain Ash seems to have a felt roof out the back somewhere - and every one of them is on borrowed time. Felt was never the right material for a valley that gets this much rain; it was just the only affordable option when it went on.
EPDM rubber changed that maths. One continuous sheet with no seams, flexible at minus temperatures, indifferent to the puddle that sits on it all winter - and a working life of 40 to 50 years. It simply does not fail the way felt fails.
We strip back to the deck, replace any soft boards and fit the membrane with clean trims and proper upstands. Rubber is the roof we would put on our own garages – and the one we recommend most often as a local Mountain Ash roofer.
Rubber Roofing Work We Do
EPDM from first strip to final trim - and the roofline around it.
New Rubber Roofs
Complete EPDM systems on garages, extensions, dormers and porches.
Felt-to-Rubber Conversion
Old felt off, deck made good, rubber on - the permanent upgrade.
EPDM Repairs
Cuts and lifted edges on existing rubber bonded and sealed properly.
Deck Renewal
Soft and rotten boards replaced so the membrane has solid ground.
Trims & Upstands
The edges and wall joints detailed right - where cheap jobs leak first.
Warm Roof Systems
Insulation under the membrane for rooms that used to be cold boxes.
Rooflights in Rubber
Flat rooflights formed and sealed within the same membrane.
Roofline to Match
Fascias and gutters renewed with the roof for one clean finish.
Why Choose K Williams Roofing?
One material, fitted properly, that outlasts three felt roofs.
Local Experts
We are in and around Mountain Ash all the time - we know its steep terraces, its housing stock and exactly what the weather does to roofs here.
Fully Insured
Comprehensive public liability insurance on every job for complete peace of mind.
Quality Materials
Weather-proven materials from trusted suppliers, chosen to last in South Wales conditions.
Fast Turnaround
Quick quotes, prompt starts and tidy, efficient work with minimal disruption.
Guaranteed Workmanship
Every job is backed by a workmanship guarantee you can rely on.
Competitive Pricing
Fair, transparent quotations with no hidden extras and no pressure.
Ready to Stop Re-Felting?
If your flat roof ticks any of these boxes, rubber is worth a quote.
On Its Second or Third Felt
Stacked felt layers hide rot and add weight - stripping and rubber ends the cycle.
A Puddle That Lives There
Standing water murders felt; EPDM genuinely does not care about it.
Patch on Patch
A quilt of repairs is a roof spending your money in instalments.
Every Storm, a New Drip
Chasing leaks across tired felt costs more than replacing it once.
Moss Taking Hold
A green surface is a porous surface - the covering is done.
New Build or Extension Coming
Building anyway? Put rubber on from day one and never think about it again.
Recent Roofing Work by Our Team
A few recent jobs completed by our team across the South Wales valleys.
Quakers YardEPDM Rubber Flat Roof
Flat roof re-covered with a seamless EPDM rubber membrane for a clean, watertight finish.
View project- Twynyrodyn
New Rubber Roof, Fascias & Gutters
Complete garage roof renewal - seamless rubber membrane with new edge trims, fascias and gutters.
View project - Merthyr Tydfil
New Roof with Fascias & Gutters
Complete re-roof on Balaclava Road with new interlocking tiles, a dry ridge system, and new fascias and gutters throughout.
View project
How We Fit a Rubber Roof
Most garages: stripped, decked and finished in rubber the same day.
- 1
Free Inspection
We inspect the old covering and the deck, then quote the full job - strip, timber, membrane, trims - as one clear written price.
- 2
Detailed Quotation
You get a clear written quote with a full breakdown of materials and labour, and no hidden extras.
- 3
Work Completed
Our local team completes the work to a high standard, on schedule and with the site kept tidy.
- 4
Final Quality Check
We walk the finished job with you, check every detail and leave you with our workmanship guarantee.
Areas We Cover Around Mountain Ash
- Penrhiwceiber
- Miskin
- Cefnpennar
- Darranlas
- Caegarw
- Ynysboeth
- Abercynon
EPDM rubber roofing across Mountain Ash and the lower Cynon Valley – Penrhiwceiber, Miskin, Cefnpennar, Darranlas, Caegarw, Ynysboeth and Abercynon. Free written quotations on every roof.
Frequently Asked Questions
Straight answers about rubber roofing in Mountain Ash.
Is rubber really worth the extra over felt?
Over the life of the roof, comfortably – EPDM costs a little more on day one and then outlasts two or three felt roofs while needing almost nothing doing to it. In valley rainfall the case is even stronger.
How long does EPDM last in this climate?
40 to 50 years installed properly – it stays flexible in frost, shrugs off UV and is completely unbothered by the standing water that destroys felt.
Rubber or fibreglass for my roof?
EPDM for most straightforward garage and extension roofs – best value and quickest to fit. GRP fibreglass earns its keep on complicated shapes and roofs used as balconies. We fit both, so the advice is unbiased.
Can you lay rubber straight over my old felt?
EPDM needs a clean, dry, solid deck, so the honest answer is usually strip first. Where the existing build-up genuinely allows an overlay we will say so – it is your money either way.
What does a rubber garage roof cost in Mountain Ash?
Typically less than people fear and done within a day – one of the best-value jobs on our list. Extensions price by size and insulation spec. Quotes free and itemised.
Which areas do you cover?
Mountain Ash and the lower Cynon Valley – Penrhiwceiber, Miskin, Cefnpennar, Darranlas, Caegarw, Ynysboeth and Abercynon.
Related Roofing Services
Every service below is part of our complete roofing services in Mountain Ash.
Flat Roofing Mountain Ash
Rubber, fibreglass and felt compared honestly - all our flat roof systems.
View serviceGuttering Mountain Ash
New gutters to catch what the new roof sheds.
View serviceFascias & Soffits Mountain Ash
Edge boards and trims renewed for a complete finish.
View serviceEmergency Roof Repairs Mountain Ash
Flat roof gone in a storm? Same-day response across the valley.
View service
Want a Flat Roof You Never Think About?
EPDM rubber, fitted properly, quoted free - anywhere in Mountain Ash and the lower Cynon Valley.
Call us today: 07952 811592