Trusted Roofers in Merthyr Tydfil & South Wales
From slipped slates and leaks to complete re-roofs, K Williams Roofing has looked after roofs in Merthyr Tydfil and across South Wales for more than 30 years. Free, no-obligation quotes.
Expert chimney repairs in South Wales
We understand that your chimney is exposed to the elements every day of the year. Whether you need a chimney removed, repaired or fully re-built, we can help.
Professional slate roofing in South Wales
Slate is one of the most durable and attractive roofing materials available. Whether you need a new slate roof, repairs or ongoing maintenance, we can help keep your property protected all year round.
Trusted Roofing Company in Merthyr Tydfil
K Williams Roofing is a family-run roofing company in Merthyr Tydfil, carrying out roof repairs, re-roofs and maintenance across Dowlais, Penydarren, Troedyrhiw and Cefn Coed. As local roofers that Merthyr Tydfil homeowners have relied on for over 30 years, we know the area’s housing inside out — from traditional terraced homes with slate roofs to modern estates.
South Wales weather is hard on roofs. Driving rain, high winds and winter frost mean regular roof maintenance is what stops small problems becoming expensive ones. Our team handles everything from replacing slipped slates and repointing ridge tiles to complete strip and re-tile projects — and we’re on call for emergency repairs when storms hit.
Whether you need a reliable roofing company or fast, honest roof repairs in Merthyr Tydfil, we’ll give you a straightforward assessment and a free, no-obligation quote. We have also been voted a top 3 roofer in Merthyr Tydfil by the independent directory Three Best Rated.
A little bit about us
At K Williams Roofing, we provide complete domestic and commercial roofing solutions for customers in Merthyr Tydfil and across South Wales.
- 0+
Completed projects
- 0+
Years experience
- 0*
Reviews
- 0+
Services
Qualified Roofing Specialists You Can Rely On
K Williams Roofing is led by a fully NVQ-qualified roofer, trained and certified in Roof Slating and Tiling to recognised national standards. This qualification reflects the skill, knowledge and professional workmanship that go into every project we complete across South Wales.
With more than 30 years of hands-on experience, we combine formal training with decades of practical expertise. Our customers can be confident that all work is carried out safely, correctly and in line with industry best practice. That track record is also why we are listed as one of the top three roofing contractors in Merthyr Tydfil by Three Best Rated.
Our Roofing Services
From small repairs to complete re-roofs, we cover every part of your roof — all backed by free quotations and guaranteed workmanship.
Slating & Tiling
Traditional slate and tile roofing, repairs and replacements — sympathetic to Merthyr’s period homes.
Slating & tiling in Merthyr TydfilFlat Roofing
Durable, long-lasting flat roof systems for extensions, garages and bay windows.
Flat roofing in Merthyr TydfilFascias & Soffits
uPVC fascias, soffits and bargeboards fitted to protect and tidy your roofline.
Fascias & soffits in Merthyr TydfilRoof Maintenance
Regular inspections and preventative maintenance to keep your roof watertight all year round.
Roof maintenance in Merthyr TydfilStrip & Re-Tile
Complete roof strip and re-tile projects using quality materials, built to last for decades.
Strip & re-tile in Merthyr TydfilGuttering
Gutter repairs, replacements and cleaning to keep rainwater moving away from your home.
Guttering in Merthyr TydfilEmergency Roof Repairs
Storm damage? Sudden leak? Fast emergency callouts across Merthyr Tydfil.
Emergency roof repairs in Merthyr TydfilChimney Repairs
Chimney repointing, rebuilding, lead work and cowl fitting from experienced roofers.
Chimney repairs in Merthyr TydfilSkylights
Supply and fitting of skylights and roof windows to bring natural light into your home.
Skylights in Merthyr TydfilRubber Roofing
Seamless EPDM rubber roofs with a 40-year-plus life expectancy for garages and extensions.
Rubber roofing in Merthyr TydfilRoof Repairs
General roof repairs for slipped tiles, storm damage and more.
Roof repairs in Merthyr TydfilNew Roofs & Roof Replacement
Complete new roof installations and full re-roofs in tile, slate or flat systems.
New roofs & roof replacement in Merthyr TydfilRoof Leak Repairs
Leak tracing and repair that fixes the root cause, not just the symptom.
Roof leak repairs in Merthyr TydfilDry Ridge & Dry Verge Installation
Mechanically-fixed dry ridge and verge systems that won't crack like mortar.
Dry ridge & dry verge installation in Merthyr TydfilGarage Flat Roof Replacement
Felt, EPDM rubber or GRP garage roof replacement, usually completed in a day.
Garage flat roof replacement in Merthyr TydfilLead Flashing Repairs & Replacement
Code 4 & 5 lead flashing repair and replacement for chimneys, valleys and walls.
Lead flashing repairs & replacement in Merthyr TydfilFlat Roof Repairs
Leaking or damaged flat roofs repaired in felt, EPDM or GRP.
Flat roof repairs in Merthyr TydfilRoof Inspections
Independent roof surveys and condition reports.
Roof inspections in Merthyr TydfilStorm Damage Roofing
Fast storm damage repairs and insurance claim reports.
Storm damage roofing in Merthyr TydfilIndustrial Roofing
Warehouses, factories and agricultural buildings roofed and maintained.
Industrial roofing in Merthyr TydfilMetal & Tin Roof Repair
Corrugated, box profile and standing seam metal roof repairs.
Metal & tin roof repair in Merthyr Tydfil
Why Homeowners Choose K Williams Roofing
Local knowledge, honest pricing and workmanship we stand behind — that’s why our customers recommend us across Merthyr Tydfil.
Local Roofing Experts
Based in Merthyr Tydfil — we know the local housing stock and the valleys weather like the back of our hand.
Fully Insured
Comprehensive public liability insurance for total peace of mind on every single job.
Fast Response Times
Quick callouts across Merthyr Tydfil and the surrounding valleys, including emergencies.
Quality Materials
Trusted, weather-proven slates, tiles and membranes from leading suppliers.
Competitive Pricing
Fair, transparent quotes with no hidden extras — and never any pressure.
Guaranteed Workmanship
Our work is backed by a workmanship guarantee you can rely on.
Recent Roofing Work in Merthyr Tydfil
A few recent examples of our roofing work around Merthyr Tydfil and the surrounding villages.
Merthyr TydfilNew 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- Quakers Yard
EPDM Rubber Flat Roof
Flat roof re-covered with a seamless EPDM rubber membrane for a clean, watertight finish.
View project - Heolgerrig
Large Re-Roof in Grey Tile
Large property fully re-roofed in grey interlocking tiles with new fascias and guttering to match.
View project
Areas We Cover Around Merthyr Tydfil
- Dowlais
- Troedyrhiw
- Penydarren
- Cefn Coed
- Aberfan
- Treharris
- Merthyr Vale
K Williams Roofing works throughout Merthyr Tydfil and the surrounding communities — from Dowlais and Penydarren in the north to Troedyrhiw, Aberfan, Merthyr Vale and Treharris down the valley, plus Cefn Coed. Wherever you are, you get the same fast response, honest advice and quality roofing. For typical prices, see our new roof cost guide and roof repair cost guide. From our Merthyr base we also cover Aberdare, Mountain Ash, Hirwaun, Pontypridd, Caerphilly, the Rhondda, Tredegar, Rhymney, Bargoed, Blackwood, Ebbw Vale, Brecon and Abergavenny. See all areas we cover.
Frequently Asked Questions
Straight answers to the questions we’re asked most about roofing in Merthyr Tydfil.
How much does a new roof cost in Merthyr Tydfil?
Every roof is different, so the cost of a new roof in Merthyr Tydfil depends on the size of your property, the materials you choose (natural slate, concrete tile or flat roofing systems) and access. We provide free, no-obligation quotations with a clear written breakdown, so you know exactly what you’re paying for before any work starts. Our new roof cost guide gives typical South Wales prices.
Do you offer emergency roof repairs?
Yes — we offer emergency roof repairs across Merthyr Tydfil and the surrounding areas. Whether it’s storm damage, a sudden leak or slipped slates, we can make your roof safe and watertight quickly, then carry out a permanent repair.
How quickly can you attend roofing issues?
For emergencies we aim to attend the same day wherever possible. Routine roof repairs and quotations are usually arranged within a few days. Call us on 07952 811592 and we’ll let you know exactly when we can be with you.
Do you work on flat roofs?
Yes — we install, repair and replace flat roofs on extensions, garages, dormers and bay windows using modern, high-performance flat roofing systems that far outlast traditional felt.
Are your roofing quotations free?
Yes — all our quotations are completely free and no-obligation. We’ll assess your roof, explain what’s needed in plain English and give you a written quote with no hidden extras.
What roofing areas do you cover?
We cover Merthyr Tydfil and the surrounding areas including Dowlais, Penydarren, Troedyrhiw, Cefn Coed, Aberfan, Merthyr Vale and Treharris.
Need a Reliable Roofer in Merthyr Tydfil?
From emergency repairs to complete re-roofs, K Williams Roofing is ready to help. Get your free, no-obligation quote today.
Call us today: 07952 811592