Pontypridd, South Walesinfo@lewzpropertydevelopment.co.uk Mon–Sat 7:00 – 18:00Company No. 15585929 About Services Service Areas Our Work Reviews Contact 07576 546805Request Estimate - Home - Service Areas - Merthyr Tydfil South Wales · Merthyr Tydfil · 30+ Years Combined Experience # Builders In Merthyr Tydfil.Stone Terraces, Hill Sites,Built Properly. Extensions, full renovations, silicone render and bricklaying across Merthyr Tydfil, Aberfan, Troedyrhiw, Pant, Dowlais and Cefn Coed. Pontypridd-based, up the A470, written quote in 48 hours. Request Free Estimate 07576 546805 Merthyr surveys booked this week · Fixed written quotes Covering Merthyr Tydfil Merthyr Tydfil reached inside 30 minutes Fixed Written Quote Public Liability Insured · CO 15585929 Local Relevance · Merthyr ## A Merthyr Tydfil Builder,Not A Builder Who Visits Merthyr Tydfil. ### Why We Work In Merthyr Tydfil Merthyr Tydfil sits 25–30 minutes north of us up the A470, and we work there regularly — extensions, renovations, render systems and structural repair on the older valley stock. We know the housing types, the ground conditions and the way the weather behaves above Merthyr. ### Merthyr Tydfil Property Types We Know Merthyr's housing is dominated by Victorian and Edwardian solid-stone terraces — the classic South Wales valleys terraced street, lining the contours of the hillsides through Town, Penydarren, Dowlais and the Taf valley villages below. Newer post-war estates spread around Gurnos and parts of Galon Uchaf. The upper villages (Pant, Cefn Coed, Vaynor) carry a mix of older stone cottage stock and post-war housing. ### Common Briefs In Merthyr Tydfil Most Merthyr briefs we price are full renovations on tired Victorian terraced stock, rear extensions over the original outrigger or kitchen, silicone render systems to replace failing pebbledash on the post-war estates, and bricklaying / stone repair on perished pointing and chimney stacks. The weather up here punishes anything that wasn't built or maintained properly. ### Driving Time To Merthyr Tydfil From our Pontypridd yard, Merthyr Tydfil town is around 30 minutes straight up the A470. Aberfan, Troedyrhiw and Quakers Yard are 20 minutes or less. We can fit Merthyr survey visits around Pontypridd or Caerphilly work without losing a day to travel. Services In Merthyr Tydfil ## What We BuildIn Merthyr Tydfil. All Services 01 ### Whole-House Refurbishments Top-to-bottom refurbishments for whole properties across Pontypridd, Cardiff and South Wales. Plaster off, floors up, rewire, replumb, reinsulate, replaster, redecorate, kitchen and bathrooms in. One team, one written programme. Read Service Brief 02 ### Bricklaying Time-served bricklaying across Pontypridd, Cardiff and the South Wales valleys. Read Service Brief 03 ### Silicone Render Full silicone and silicone-silicate render systems across Pontypridd, Cardiff and South Wales. Read Service Brief 04 ### Plastering Internal skim, re-skim and full replastering across Pontypridd, Cardiff and South Wales. Read Service Brief 05 ### Extensions & New Builds Single-storey, two-storey, wrap-around extensions and ground-up new builds across Pontypridd, Cardiff and the South Wales valleys. Read Service Brief 06 ### Garden Renovations Patios, porcelain slabs, retaining walls, drainage and full garden builds across Pontypridd, Cardiff and South Wales. Hard landscaping engineered by builders. Read Service Brief 07 ### End-to-End Builds Single accountable team handling every trade. Read Service Brief Why Choose Us In Merthyr Tydfil ## Trust BuiltOn The Ground. 30 min Up the A470 Weekly Working area CF47-48 Postcodes covered 30+ yrs Combined experience on valley housing What's Specific To Merthyr Tydfil ## Local Problems,Local Answers. Property type, climate, building age and infrastructure all behave differently in Merthyr Tydfil. Generic builders don't account for it. We do. ### Hard Winter Weather Merthyr sits at significant elevation and gets harder winters than Cardiff or even Pontypridd — frost, driving rain off the Brecon Beacons, more freeze-thaw cycles. Mortar mixes, render systems and pointing have to be specified for the exposure rating, not just any-job spec. ### Solid Stone Terraces & Damp Merthyr's terraced stock is overwhelmingly solid stone — these walls need lime plaster internally and lime or breathable pointing externally. Sealing them with cement render or modern gypsum traps moisture and blows the plaster and stone from the inside out. ### Subsidence & Old Mine Workings Parts of the Merthyr area sit over historic mine workings — extensions and new structures need a proper ground assessment and sometimes engineered foundations (piles or rafts) where standard strip footings won't do. We flag this on the first visit and bring an engineer in where it's needed. ### Chimney & Stack Failure Merthyr's terraced stock typically has tall stone chimneys exposed to the worst of the weather. Perished mortar, spalled stone and slipped flashings are normal jobs here — usually safer and cheaper to take down and rebuild than keep patching. How It Works ## First CallTo Final Sign-Off. 01 ### Enquiry Tell us the brief by phone, email or form. 02 ### On-Site Survey We come out, measure up and listen properly. 03 ### Written Quote Itemised quote with a clear programme — typically within 48 hours of the survey. 04 ### Build & Sign-Off On site daily, tidy at end of day, signed off when you're happy. Merthyr Tydfil Questions ## StraightAnswers. Cost, response time, coverage, emergency availability — the Merthyr Tydfil questions everyone asks, answered before you call. Ask Yours ### Do you cover all of Merthyr Tydfil? +Yes — Merthyr town, Dowlais, Penydarren, Pant, Cefn Coed, Vaynor, Aberfan, Troedyrhiw, Quakers Yard, Gurnos and the surrounding villages. All inside our regular travel range. ### How long does it take you to get to Merthyr? +Around 30 minutes from our Pontypridd yard via the A470. Aberfan and Troedyrhiw closer to 20. ### Are you experienced with Merthyr's stone terraces? +Yes — solid stone construction is the same skill set we work with daily in Pontypridd. Lime plaster, matched lime pointing, breathable build-ups, stone repair and chimney rebuilds — all regular work. ### Can you handle the harder Merthyr weather conditions? +Yes — we specify mortar, render and pointing for the actual exposure rating. The system spec for a Merthyr or Dowlais elevation isn't the same as a Cardiff job — we adjust accordingly. ### Do you handle Merthyr Tydfil County Borough Council building control? +Yes — inspections booked and hosted at every stage, completion paperwork handed over at sign-off. ### Can you do silicone render in Merthyr? +Yes — full system installs over sound substrate, replacing tired pebbledash or sand-and-cement render. 25-year manufacturer warranties. ### What if my Merthyr property is over old mine workings? +We flag it on the first visit and bring in a structural engineer where the ground assessment requires it. Engineered foundations (piles or raft) where strip footings won't do. ### Can you take on emergency repair work in Merthyr? +Yes — storm damage, chimney failure, structural cracking, water ingress. Make-safe inside 24 hours where possible, then a proper repair quote in writing. Nearby Service Areas ## We Also Work In… All Service Areas Builders In Pontypridd Builders In Caerphilly Next Step · Merthyr Tydfil ## Merthyr Job? Built For Valley Weather. Free site survey across Merthyr Tydfil (within our coverage area), written quote typically within 48 hours, no obligation. 30+ years' combined trade experience across the team, public liability insured, Pontypridd-based. Request Free Estimate 07576 546805 Public Liability Insured 30+ Years Pontypridd-Based Independent, owner-led local builders with 30+ years' combined trade experience across the team. Extensions, full renovations and ground-up builds across Pontypridd, Cardiff and the wider South Wales region. 07576 54680507581 312279info@lewzpropertydevelopment.co.ukPontypridd, South Wales ### EXPLORE - About - Services - Service Areas - Our Work - Reviews - Contact ### SERVICES - Bricklaying - Bathroom Renovations - Kitchen Renovations - Whole-House Refurbishments - Extensions & New Builds - Plastering ### SERVICE AREAS - Builders in Pontypridd - Builders in Rhondda - Builders in Ynysybwl & Abercynon - Builders in Talbot Green - Builders in Aberdare - Builders in Merthyr Tydfil - Builders in Caerphilly - Builders in Cardiff - Builders in Newport - Builders in Bridgend - Builders in Barry - Builders in Bristol © 2026 LEWZ Property Development Ltd. Company No. 15585929. All rights reserved. Privacy PolicyTerms & ConditionsCookie PolicyMon–Sat 7:00 – 18:00 Call NowGet Estimate