Extension Builders in New Tredegar

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (3 reviews)

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Some of our top rated extension builders in New Tredegar

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Cartref home improvements
Rating: 5 out of 5
Extension Builder in New Tredegar
Cartref Home Improvements is a trusted specialist in supplying and installing high-quality uPVC windows and doors for homes across the region. With a strong commitment to craftsmanship, energy efficiency, and customer satisfaction, we provide tailored solutions designed to enhance comfort, security, and kerb appeal. As a FENSA-registered installer, Cartref Home Improvements ensures every installation meets the latest building regulations, giving homeowners complete peace of mind and certification to prove compliance. Our experienced team delivers professional, reliable service from initial consultation through to final installation. To make home improvements more accessible, we also offer a range of flexible finance options, allowing customers to upgrade their home on a budget that works for them. With quality products, expert fitting, and a friendly, customer-focused approach, Cartref Home Improvements is your trusted partner for transforming your home.
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Latest review:
Windows & Doors (uPVC & Metal)- 9 Feb 2026
Fantastic from start to finish Punctual. High quality of work. Extremely good value for money and very clean after doing the work. We had 6 blown windows replaced. Will be my first port of call for future work and would recommend to all.
Luke Briggs Building & Roofing Contractor
Rating: 5 out of 5
Extension Builder in New Tredegar
I am a building and roofing contractor based in Blackwood South Wales. We undertake all aspects of building work and strive on delivering a quality job for all our customers. We provide a complete hassle free friendly service and can deal with all your building needs. We can provide you with a competitive quotation on : GROUNDWORKS BRICKWORK & BLOCKWORK PLASTERING & RENDERING CARPENTRY ROOFING WORK NEW BUILDS COMPLETE RENOVATIONS PROJECT MANAGEMENT
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Latest review:
Roofing (Pitched)- 1 Mar 2021
Luke is very knowledgeable, he advised me on a better and as it turned out cheaper option to reslove the problem we had with our chimney. The job was completed in a satisfactory, timely and professional manor.
Wjp brickwork
Rating: 5 out of 5
Extension Builder in New Tredegar
Hard working young man who is dedicated to making every job the highest functional and aesthetic standard possible. The building trade has enabled me to have the following skills and knowledge on all areas in the trade. Ive worked on many detailed jobs and large scale sites throughout the UK and Australia We offer all aspects of brickwork, blockwork and stone work •brickwork •blockwork •stonework •patios •repair work All you building needs
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Latest review:
Bricklaying- 11 Apr 2026
Wesley and his team did an excellent job rebuilding a garden wall for us. The workmanship is of an excellent standard, Wesley was extremely professional, approachable and helpful at every stage of the process and provided great advice and problem solving ideas for us. The workmen were polite and efficient and left things clean and tidy. We would definitely use again and recommend this company.
Peter Cooke
Rating: 5 out of 5
Extension Builder in New Tredegar
All aspects of bricklaying . Plastering.
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Latest review:
Bricklaying- 14 Mar 2024
Peter did a great job bricking up the gaps in our attic. Went above and beyond to find matching bricks even though not asked, glad he did as it makes a huge difference. A very thorough job. He took great care of our property and left everything very clean. A pleasure to have working in the house.
amp builders
Rating: 5 out of 5
Extension Builder in New Tredegar
We work every day with our team and make sure all our work is completed at the highest standard. We also ensure that you have a point of contact 24 hours a day 7 days a week. Our team is very friendly and clean and our tradesmen are all NVQ qualified and very experienced and knowledgeable at all trades. We undertake all aspects of work, work along side various insurance companies and property investors and offer very competitive price’s! Thanks for you’re time.
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Latest review:
Insulation- 27 Jan 2019
The boys did a great job insulating the loft and were friendly and hard-working throughout . Would highly recommend .
Kyle williams
Rating: 5 out of 5
Extension Builder in New Tredegar
I am friendly hard working person, very reliable keeping in with deadlines whilst undergo the graft. I'm very chatty and understanding i always want best for you! I always aim to achieve the best quality of work, while maintaining good house keeping.I am a bricklayer/stone Mason so if your looking for a new patio, walls both brick and stone cladding or pointing I am your man I have references ready if required thanks
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Latest review:
Stonemasonry- 27 Jun 2025
Our back garden wall gate surround was falling apart and the lintel was splitting so we needed someone to rebuild the surround and set things right. Kyle has been brilliant. He was the only one we contacted that wanted to come and see the job in person to provide a quote. He was clear about what would be required and timescale, his quote was competitive and he was fully transparent about the possible additional costs once the work began as there may have been other issues going unseen underneath. He arrived on the agree date and cracked on. The work took about a week as promised and the finish is perfect, and we are so pleased! Wouldn't hesitate to have him back to do further work and would highly recommend. Thanks Kyle!
redz developments
Rating: 4.9 out of 5
Extension Builder in New Tredegar
daily tasks include, maintaining, improving and fixing electrical repairs, installations of kitchens and bathrooms including all aspects from plumbing to fixtures. I also undertake renovations to the inside and outside of the property, these include but are not limited to; fencing, decking, landscaping, second fix carpentry, structural work and decorating.
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Latest review:
Kitchen Fitting- 4 Jul 2025
The guys done an excellent job installing our new Wren kitchen very methodical in their work. Would not hesitate in having them back to carry out more work, highly recommended 👍
Luke Williams Carpentry
Rating: 5 out of 5
Extension Builder in New Tredegar
I’m a self employed carpenter with over 15 years experience in all aspects of carpentry work, including loft conversions, extensions, new build and renovations. I form part of a building contracting business which specialises in all areas of building work, from small extensions to new builds. We have the resources to manage the works from groundwork’s to finishing touches on your build.
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Latest review:
Carpentry- 3 Jul 2023
My immediate impression of Luke was that he is extremely professional in his manner and way of working. He was efficient, had all of the tools needed and worked quickly but with great precision and accuracy. A true professional in his field and I would be happy to recommend him to anyone looking for some carpentry work in their home.
2d construction
Rating: 5 out of 5
Extension Builder in New Tredegar
We are a professional building contractor based in South wales. We consist of a partnership and cover a range of trades between us. We are also in the liquid screed industry and offer underfloor heating and screed packages. We have 40 years combined experience and are known for the quality of our work and our friendly service. We also supply, pump and lay concrete! All in house. Get in touch for a free no obligation quotation today.
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Latest review:
Extensions- 23 Dec 2019
Thank you for all your hard work getting the job done as promised before xmas. Nothing was too much trouble for you and your team. We would highly recommend you to any of your future clients See you soon for further projects 👍
N&B Construction
Rating: 4.9 out of 5
Extension Builder in New Tredegar
A multi skilled team with extensive years of experience in the building industry carrying out all aspects of construction from building a house to adding a socket we have everything covered in an incredibly fast growing company. We pride ourselves on providing quality work at all times and guarantee all work undertaken, whilst adhering to all budgets.
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Latest review:
Carpentry- 3 Feb 2025
Really friendly, fast working and a masterpiece of their craft, 100% recommend.
Edge carpentry and construction ltd
Rating: 5 out of 5
Extension Builder in New Tredegar
We have been in the building trade for over 30 years and provide quality tradesmen for all your building needs from small garden walls to complete house building projects extension renovations and conversions
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Latest review:
Extensions- 27 Mar 2025
Really pleased with my single storey extension. It's been up 5 months now and no problems. Dean is a great guy to work with and I felt comfortable with him and his team when home alone with small kids. Would use him again and I would recommend him.
ecas systems
Rating: 4.7 out of 5
Extension Builder in New Tredegar
We are an established construction business with a qualified, dedicated and friendly building and electrical team who guarantee a high standard of work with value for money. We can carry out any kind of home refurbishment that you may require from an extension to a new bathroom or kitchen. All our work is guaranteed and customer satisfaction is top of our list !!
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Latest review:
Extensions- 2 Sep 2019
Good start so just need to maintain momentum.
anthony evans
Rating: 5 out of 5
Extension Builder in New Tredegar
My name is Anthony, I have been in the building trade for 25 years, self employed for 15 of those. I am friendly, professional and 100% dedicated to my work/customers. I have built up an excellent reputation for my quality of work, respecting my customers wishes and offering advice where I can in order to create their ultimate goal.
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Latest review:
Extensions- 2 Sep 2020
I can highly recommend Anthony & Dean of Edge Construction they built a two story extension for us that we are very pleased with. Quality of work and commitment displayed was excellent they provided a realistic quote which was the final cost apart from extra work we requested. Total all round positive service . Gareth Jones
CLM Windows and Doors
Rating: 5 out of 5
Extension Builder in New Tredegar
Hello, CLM Windows and doors is a family run buissiness. CLM will work together with customers to design and experience the new look of your homes and work places. We aim to satisfy every customer and provide a high standards of work. CLM employees are friendly and polite.
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Latest review:
Extensions- 19 Nov 2020
Excellent from start to finish. Nothing was too much trouble and came in with some great ideas around design. Highly recommend. First class job
Gordon Bowden Builders
Rating: 5 out of 5
Extension Builder in New Tredegar
I am a fully trained plasterer qualified in all aspects of internal/external finishes. I started my own building business 30 yrs ago and work with the local Council as a registered tradesmen’s for buildings, roofing grant work, care & repair for the elderly and new builds.
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Latest review:
Conversions - General- 20 Dec 2016
Gordon Bowden put up a partition stud wall finished with a high standard plaster finish. Work completed inside time quoted very reaonable quote. Left area clean and tidy and would highly recommend Gordon as a tradesman that takes great pride in his work. And would use him again lovely guy. Very pleased with the work he has done.
K.C.Edwards plastering services
Rating: 5 out of 5
Extension Builder in New Tredegar
Here at K.c.edwards plastering services we offer top quality workmanship at reasonable prices we thrive on customer satisfaction and pride in the work that we produce we cover all internal aspects of plastering and also external.
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Latest review:
Plastering- 24 Jun 2022
excellent plastering and service

Top rated Extension Builders

Our Extension Builders in New Tredegar, are rated 5 out of 5 based on 3 reviews from customers like you.

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

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 New Tredegar 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 New Tredegar who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in New Tredegar?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in New Tredegar 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 New Tredegar extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your New Tredegar home extension project is likely to cost.

Find extension builders in New Tredegar with MyBuilder

Hiring the right extension builder in New Tredegar 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 New Tredegar extension builders. Once your job is live, we’ll share it with home extension builders in New Tredegar who can express their interest.

Step 2: Compare different extension builders in New Tredegar

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

Step 3: Hire New Tredegar extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in New Tredegar, 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.

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

What to ask a New Tredegar extension builder before hiring?

Before hiring an extension builder in New Tredegar or extension building company in New Tredegar, 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 New Tredegar?

An extension builder in New Tredegar 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 New Tredegar 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 New Tredegar?

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 New Tredegar 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 New Tredegar 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 New Tredegar

Can an extension builder in New Tredegar help with planning permission?

Yes, many extension builders in New Tredegar 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 New Tredegar handle everything from design to construction?

Many New Tredegar 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 New Tredegar help with materials and finishes?

Yes, most extension builders in New Tredegar 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.