Extension Builders in Cwmbran

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (2 reviews)

Easily find verified Cwmbran Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Cwmbran.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Cwmbran

373 Results

Sort by:

JM Building Services
Rating: 4.8 out of 5
Extension Builder in Cwmbran
Thanks for taking the time to read my profile. I am City and guilds, advanced craft trained brick layer, who has been in the building game for many years. We are fully insured and qualified. We cover all building work and pride are selfs on working to high standards, tight budgets and do all we can to make the clients ideas come to life.
Get in touch
Latest review:
Landscaping- 28 Nov 2020
I would like to highly recommend this company. Very friendly and professional in manner. Turned up when he said he would. Did the job in a very timely fashion, for the price discussed.
West Country Carpentry
Rating: 4.9 out of 5
Extension Builder in Cwmbran
I have been doing carpentry and construction for 25 + years . We take alot of pride and care in the work we do, all work is undertaken by highly skill workmen . We are very keen to take on all sorts of jobs small or large and give 100% commitment and time to every job
Get in touch
Latest review:
Extensions- 13 Apr 2024
I had a lot of work done inside the house, installing a kitchen and bathroom including the plumbing and electrics, knocking down walls and changing the layout of the rooms.The work took a lot longer than expected but was completed to a high standard. We had to wait a long time for windows which held everything up and was beyond the control of Martyn or the team.The team were professional and knowledgeable and respectful of us having to live in the house meanwhile.
B And E builders limited
Rating: 5 out of 5
Extension Builder in Cwmbran
B AND E BUILDERS LTD Is a small company we undertake any works , small big, it doesn’t matter. We guarantee you quality honestly And jobs to start and be done on the time we promise.
Get in touch
Latest review:
Plastering- 22 Jan 2026
I hired Aries through MyBuilder and I could not be happier with the work. He went above and beyond, even helping with tasks that were not part of his job. His workmanship is excellent, very skilled, respectful, polite, and understanding throughout the whole process. There were no hidden or extra costs, and he even worked weekends to make sure the job was completed on time. I highly recommend him and would definitely use his services again. The best expereince I've had a with a builder!
Gf construction
Rating: 5 out of 5
Extension Builder in Cwmbran
Hello I'm Gareth the guy behind G.F.construction.I am a easy going friendly chap who loves making peoples wishes come true😊.I am a time served bricklayer but have picked up alot of skills on the way ie plastering carpentry rendering to list a few.Detail and care is what separates me from the rest in my opinion which has always kept customers coming back to me time after time.
Get in touch
Latest review:
Conversions - General- 11 Nov 2025
Many thanks for your professionalism and approach to what was a small but never the less very important job for us! happy to endorse and recommend GF Construction
CJBrickwork
Rating: 4 out of 5
Extension Builder in Cwmbran
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.
Get in touch
Latest review:
Bricklaying- 6 Jun 2026
Excellent work from Curtis. Great communication, did a fab job and left everything tidy at the end. Would definitely hire again for any future work that needs doing.
PRW Build Co.
Rating: 5 out of 5
Extension Builder in Cwmbran
We are a small and local company based in the Brecon Beacons. Our work is always carried out to the highest standard, to suit clients needs and targets. Get in touch for a free quote
Get in touch
Latest review:
Carpentry- 26 Mar 2022
Good communication. Job done quickly and for fair price.. recommended
Joe Ward electrical services
No reviews yet
Extension Builder in Cwmbran
I will cover all construction and electrical work and will be offering ev and pv installs by the end the year, I have a great team behind me and we will make sure all customers are happy with the work before leaving
Get in touch
Lloyd Montague
No reviews yet
Extension Builder in Cwmbran
Hello we do all aspects of Drylining and ceiling fixing, no job too big or too small.
Get in touch
AandT
No reviews yet
Extension Builder in Cwmbran
When choosing tucker roofing you can be sure of our full attention to your requirements and our ability to construct, we have a specialist roofing team undergoing works from pitches roofs to flats roofs commercial and domestic. With over 15 years in the trade we have completed a lot of small extension loft conversion etc
Get in touch
JB Masonry
Rating: 4.7 out of 5
Extension Builder in Cwmbran
( 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
Latest review:
Extensions- 8 Jan 2025
Jamie is excellent guy, really quick quote, confident tradesman and did an excellent work installing some very chunky steel beams into our 200 year old, random stone house for a doorway extension. Once steels were in, expertly cut and installed the stone back into reveals. Really pleased and will consider again for future works on our precious home.
Seven Split Limited
Rating: 4.5 out of 5
Extension Builder in Cwmbran
We are a Bristol based building company. My team and I mostly specialise in extensions and renovating homes.
Get in touch
Latest review:
Extensions- 25 Apr 2023
Overall, a shocking experience. Our project started off well, but it didn’t take long for issues to arise leading to 12 months of utter chaos. Stages were not completed by agreed dates, he started not turning up, quality of work started deteriorating, subcontractors ended up contacting us direct as they had not been paid/had payment concerns…. the list goes on!! Once we started to raise our concerns things got worse. Ross did not take any ownership for the issues and chose to continuously blame us instead and caused us considerable amounts of stress noting the size and value of the project. Ultimately, we were left in the position of having to complete our project ourselves and rectify multiple issues/non compliances highlighted by building control for which Ross was aware and chose to ignore. Note: We hired Ross under his previous company “Goulding Developments”.
Thomas westall contractor
No reviews yet
Extension Builder in Cwmbran
Hi there I’m a one/two man team who has 10 years experience in property maintenance and 5 years in commercial tiling/shop fitting/ bricklaying. Cscs reg. all aspect of building work undertaken with free quotes.
Get in touch
Bristol Home Improvements Ltd
Rating: 4.9 out of 5
Extension Builder in Cwmbran
Thank you for looking We are a family run business, with over 35 years experience within the trade 10 year warranties on all glass and products Insurance back guaranteed for piece of mind. Certass Registered to be able to sign your windows/doors off, we pride the company on 100 percent customer satisfaction, we also do not have salesmen or premises, so the overheads are low So we can give you a very competitive price
Get in touch
Latest review:
Conservatories- 24 May 2026
I am really pleased with the work done. I would recommend them to anyone
rwconstruction
Rating: 5 out of 5
Extension Builder in Cwmbran
We are a construction company with over 40 years experience, working in both domestic and commercial areas, the type of work we do are as follows- loft conversions, extensions,new builds, garage conversions, kitchens, refurb works plus any single trade jobs.As a company we can take projects from start to finish saving our customers the stress of liasing&organising different companies and individuals
Get in touch
Latest review:
Extensions- 21 Aug 2022
Rob Workman IS a master craftsman. I know it says so in writing. But now that our extensive rebuild and extensions are complete, we have seen it with our own eyes as our project unfolded. Rob took our falling down, damp, mouldy, unattractive bungalow and gave us back the keys to what more than one visitor has described as a ‘Grand Designs’ and stunning modern home that meets the highest grade of eco builds. As well as working with meticulous care & always remeasuring twice ‘just to make sure’, Rob proved himself to be good at tackling the challenges & curve balls that doing up a house is always going to throw up. Our roof, and two of the walls, proved to be insubstantial to the point of dangerous. Rob worked hard to find a cost-effective solution which met the approval of the building inspector and structural engineers. As well as Rob working on site, he brought Matt and Josh who were the epitome of polite, careful workers whose own professionalism at everything from groundwork, brickwork roofing & much else besides was a pleasure to see. Other contractors who Rob brought in - such as Simon Stadden Windows - produced great quality work to complement that of the main team. We are than pleased with the work done, with the timeliness of the work, with the price, with the tidiness of the team, and above all with the gorgeous, solid house they have left behind for us. We can recommend Rob and his team unconditionally to those looking for builders.
Watts Building Contractors Limited
Rating: 5 out of 5
Extension Builder in Cwmbran
I run a well established and VAT registered Carpentry & Building business with over 15 years experience. I have an experienced qualified team of tradesmen who are more then capable of carrying out all types of building work. All of my work is completed to the highest standard and I guarantee customer satisfaction.
Get in touch
Latest review:
Extensions- 29 Jul 2017
We are so pleased to have employed Tom Watts to build an extension (approx. 15 sq metres) off our existing kitchen and dining room. This was in order to create a large family room including a new kitchen installation. The site was not without its challenges as our house is built on a slope and required a very deep foundation to be laid. The build also required 3 RSJs (in order to remove existing walls) to create a modern space for open-plan living. Tom and his team were very easy to work with communicating any changes to the schedule and proving to be very reliable. Inevitably, as with any job such as this, there were instances where a good problem-solver was needed. Tom was able to offer creative solutions which kept the job progressing. After completing the building work T.W.Carpentry & Building also installed our new kitchen and finished the new room with new skirtings and door frames. We are very satisfied with the finished project and due to the quality of the work we are very happy to recommend this builder.
J.Evans Building and Plastering
No reviews yet
Extension Builder in Cwmbran
Experienced builder, we can see out all jobs from start to finish so less stress on the client to find other trades. Our work ranges from simply plastering to full house renovations, extensions and full kitchen renovations.
Get in touch

Top rated Extension Builders

Our Extension Builders in Cwmbran, are rated 5 out of 5 based on 2 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in Cwmbran?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Cwmbran for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Cwmbran who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Cwmbran extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Cwmbran?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Cwmbran will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Cwmbran extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Cwmbran home extension project is likely to cost.

Find extension builders in Cwmbran with MyBuilder

Hiring the right extension builder in Cwmbran with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Cwmbran extension builders. Once your job is live, we’ll share it with home extension builders in Cwmbran who can express their interest.

Step 2: Compare different extension builders in Cwmbran

When you start receiving interest, review profiles of local Cwmbran extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Cwmbran extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Cwmbran, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Cwmbran extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Cwmbran extension builder before hiring?

Before hiring an extension builder in Cwmbran or extension building company in Cwmbran, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Cwmbran?

An extension builder in Cwmbran should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Cwmbran extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Cwmbran?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Cwmbran extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Cwmbran extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Cwmbran

Can an extension builder in Cwmbran help with planning permission?

Yes, many extension builders in Cwmbran can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Cwmbran handle everything from design to construction?

Many Cwmbran extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Cwmbran help with materials and finishes?

Yes, most extension builders in Cwmbran can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.