Some of our top rated extension builders in Cwm
Sort by:
- Get in touch
Time served tradesmen 30 years experience family run business quality competitive cost effective service fully insured and guaranteed.
- Get in touch
Been a property developer for over 20 years. All building work undertaken, new build houses from the ground up, extensions, or house renovations.
- Get in touch
I am a builder with 34 years in the trade time served bricklayer when I was 16 and have always done everything in the building trade have my two sons working for me as well as builders we done stonework caswell
- Get in touch
Drive's Direct is a trusted, family-run business providing high-quality driveways, renovation, building, and landscaping services. With years of hands-on experience and a passion for detail, we bring homes and properties to life — inside and out. Whether it's transforming interiors with a fresh coat of paint, renovating tired spaces, building from the ground up, or creating beautiful outdoor environments, our skilled team is committed to delivering results that last. We pride ourselves on honest service, clear communication, and the kind of personal care only a family business can provide. No job is too big or too small — just real workmanship done right.
- Get in touch
Perfection plastering rendering specialist we have 5* reviews all our work 20year’s experience all our work has high standards we beat any qoute please call Anthony
- Get in touch
Glorious Spaces is a modern architectural design and project management practice based in Cardiff, specialising in contemporary house extension, whole house renovation and new build projects, lovingly created spaces as individual as you are. Our dedicated team create engaging space solutions we hope you’ll love and cherish.
- Get in touch
( Reviews in photos Bio ) (40 5⭐️ reviews between my builder & Facebook) Hey my name is Javan business owner of JB Masonry At JB Masonry we bring well over a decade of building Experience. Anything from Garden brickwork walls, patios, hard scaping & extensions full new builds. We cover the whole process from beginning to a satisfactory end leaving minimal stress to the client and the desired finish. Additionally we cover any type of structural repair to domestic or commercial builds. We also take great pride in our stonemasonry work. We also cover Ground works, 360 machine excavation Level 3 NVQ gold card Mason at your service. Get in touch for an immediate Estimate. Services we offer New builds Extensions Patios Brick repair Stone repair Structural steels Concreting Landscaping And any trade outsourcing I hand picked using quality as a metric.
- Get in touch
Dunraven Design Studio provide architectural services throughout South Wales, specialising in providing planning and design advice for all types of domestic building projects. With over 10-years of experience, we have worked on all projects from single and double storey extensions to garage and loft conversions. We work closely with clients to bring their vision to life with precision and creativity and we help you transform your home to create the perfect space to suit your needs.
- Get in touch
Mg building and landscaping Extensions/conservatory/orangeries/patios porcelain/roofing/and general building work 20 years experience
- Get in touch
Walsh carpentry and building is a cardiff based company covering all aspects of carpentry and building work to a high standard.
- Get in touch
Hi, I’m Keith, owner of Keith Sealey & Sons Electrical Services. I’m a NAPIT Approved electrician and City & Guilds qualified, with over 40 years’ hands-on experience in domestic electrical work across South Wales. I specialise in high-quality, compliant electrical installations and upgrades, including: • EICR testing & landlord certification • Consumer unit replacements • Fault finding & repairs • Full & partial rewires • Kitchen & bathroom electrics • Lighting upgrades & safety improvements All work is carried out to current regulations and Part P compliant, with safety and attention to detail as standard. I understand that choosing a tradesperson is about trust. That’s why I focus on: ✔ Clear communication ✔ Turning up on time ✔ Respecting your home ✔ Leaving everything clean and tidy ✔ Doing the job properly the first time Much of my work comes from repeat customers, landlords and estate agents who value reliability and experience. If you’re looking for a professional, established electrician who takes pride in his work, I’d be happy to discuss your project. Keith Keith Sealey & Sons Electrical Services
- Get in touch
All types of building work from new houses, extensions, garages, garden walls, patios, fencing, decking
- Get in touch
Experienced carpenter with over 22 years of experience. I've done all sorts of carpentry from making and installing hardwood kitchens to building castle doors. All on site carpentry including partition walls,insulation, hanging doors,installing windows, laying floors etc...etc...I've also had my own bespoke campervan building company for over 4 years. I worked 6 years in a model makers which specialises in film sets etc so I'm used to very unusual and challenging projects. I'm a well spoken professional with good people skills that prides myself on the finish. Customer satisfaction is a must to keep a good reputation 👌
- Get in touch
R2 Projects is a Cardiff-based home renovation and building company, helping customers improve their homes with reliable, high-quality workmanship. We carry out bathrooms, kitchens, extensions, refurbishments, carpentry, plastering, decorating and general building work. With over 10 years of hands-on construction experience, we focus on clear communication, fair pricing and a tidy, professional finish. We can manage jobs from start to finish, helping customers avoid the stress of dealing with multiple trades. We work across Cardiff and surrounding areas, and pride ourselves on being honest, dependable and easy to work with.
- Get in touch
Established in 1999, W&D is a family owned, personal construction company. Well known but not limited to the local communities of Old St.Mellons, Marshfield and Rumney. Over 60 years of experience between the owners. We carry out all types of Building and Home Improvement projects such as; Extensions, Garage Conversions, Kitchen Installations, Bathroom Refurbishments, New Conservatories, New Driveways and New Patios.
- Get in touch
As a skilled and experienced bricklayer and builder, I take pride in delivering high-quality workmanship on every project I undertake. My role includes all aspects of bricklaying, from setting out and laying foundations to building walls, blockwork, and detailed brickwork finishes, always ensuring everything is structurally sound and built to the highest standards. I also work confidently with other trades on-site, contributing to smooth project progress and meeting deadlines efficiently. With a strong work ethic and a proactive mindset, I stay motivated on every job, taking ownership of my work and always looking for ways to improve and exceed expectations. I’m reliable, hardworking, and committed to delivering results that stand the test of time.
