Customer Reviews
★★★★★ Rated 4.8 out of 5 from 62 Google reviews
Thirty years of roofing across Merthyr Tydfil and the South Wales valleys, and the reviews below are what our customers say about it — on quotes, speed, tidiness and finish. Independently of Google, Three Best Rated also ranks us in the top three roofers in Merthyr Tydfil after their 50-point inspection.
What Customers Mention Most
Fair, competitive quotes
The point customers raise most often: a clear written price with no surprises, and no pressure to decide.
Speed of work
Jobs started when promised and finished quickly — re-roofs and repairs done in the days quoted, not weeks.
Scaffolding handled properly
Access set up safely and taken down promptly, with the site left clear.
Tidy, polite team
Hard-working crews who clear up at the end of each day and are easy to have around the house.
Quality finish
New roofs, ridges and rooflines that look right and are built to last — 'job well done' comes up again and again.
Chimney & flat-roof work
Chimney removals and flat-roof re-covers are frequently praised for a clean, watertight result.
What Our Customers Say
A selection of recent Google reviews. Read all 62 on Google.
★★★★★
“Kieron and his team did an excellent job on our home. Their work is of a high quality. They started soon after giving us a quote and finished the work in no time. Best of all was the price - approximately HALF of that quoted by a "big" firm. Great value from honest tradesmen.”
Mark Bell-Langford
★★★★★
“A complete strip off and renewed roof plus a double dormer refurbishment including new flat roof, cladding and insulation. Turned up 8am everyday and worked all day long. Polite, professional and hard working at all times and I have no hesitation in recommending the quality of their work.”
Steve Taylor
★★★★★
“New tiled roof and guttering, beautifully finished. Kieron had organised the scaffolding, skip and even the temporary realignment of the Sky dish. They worked every chance they could during two weeks of awful weather. Would definitely recommend K Williams Roofing.”
Alun Thomas
★★★★★
“I rang Kieron to look at a tenant house after a report of water running down a bedroom wall. He responded quickly and established the issues with photographs. For a full roof replacement at the start of winter he waited for a break in the weather, then did the job efficiently, again supplying photos as the work progressed. New roof at a very reasonable price.”
Kevin Stephens
★★★★★
“Due to the recent storm I had water running down my inside walls from my unused chimney being in disrepair. I contacted the company, had a rapid response and the chimney was removed and the area sealed over in no time. Excellent work and cheaper than I expected.”
Jenny Davies
★★★★★
“Contacted K Williams Roofing this morning to put back two ridge tiles that had moved in last week's storm. They replied with a cost and had completed the job by 2pm - I did not expect that. What a great firm, will certainly use them in the future.”
Steve Booth
★★★★★
“Kieron is a very meticulous workman - reliable, helpful, polite and caring. He replaced my three skylights to a highly professional standard. I would have no hesitation in recommending him.”
Eira Forrest
★★★★★
“Recently had a full roof strip and replacement. Very competitive quote, with a few extras as the job commenced that were fully discussed and agreed. I have worked in the building trade 50 years and know a good job when I see one - the roof was finished to an excellent standard.”
John Connaire
★★★★★
“Excellent work carried out on the dry verge installation. The team was professional, punctual and efficient. Great attention to detail and quality materials used. Highly recommended for any roofing work.”
Lee Davies
★★★★★
“Kiran has just completed my bungalow roof, a compacted job with hips and dormers. The workmanship is exceptional and all completed in a very short period of time. If you need a professional job at a good price, Kiran is the man.”
Mikey Webb
★★★★★
“We had Kieron complete the flat roof on our new garden room and could not be happier. He responded quickly, visited in person to assess the job, turned up exactly when he said he would, and left everything clean and tidy with no mess at all.”
Nicky
★★★★★
“Excellent job done - garage roof was in bad condition before work but they completed all the work to put it right. Kept me well updated throughout and gave very helpful advice regarding other work. I would highly recommend - very friendly.”
Ian Williams
Leave Us a Review
We’d love to hear how we did. Your feedback helps other homeowners across the valleys choose with confidence.
The quickest way is a Google review — it takes about a minute: leave a Google review here. Prefer to write it privately? Use the form below.