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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KVC Carpentry and Building
Rating: 5 out of 5
Extension Builder in New Tredegar
KVC Carpentry & Building has a wide range of knowledge in all areas of the building trade. We offer an all round building service so you don't have to organise different trades. We cater from the smallest of jobs to the largest of projects such as extensions. We work with you every step of the way.
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Latest review:
Tiling- 10 Apr 2016
Kieran did an awesome job of both enlarging my loft hatch, fitting a loft ladder and both tiling and flooring my bathroom. He is super helpful and a really nice guy who will always do his utmost to make sure the client is happy. Kieran has also done work for two of my neighbours who can't speak highly enough of his work. I can recommend KVC 100% and will definitely be using Kieran again in the future!
JP Carpentry
Rating: 5 out of 5
Extension Builder in New Tredegar
Jp carpentry has been operating around for 10 years undertaking all aspects of first and second fix carpentry, bathrooms, kitchens and small extensions..
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Latest review:
Joinery & Cabinet Making- 1 Mar 2021
Our under stair storage now completed, and what a superb job!! No hesitancy in recommending. Job completed to a very high standard and even made a good job of cleaning up after completion.
Williams & Price Building services ltd
Rating: 5 out of 5
Extension Builder in New Tredegar
Williams & Price are members of the Federation of master builders,We offer a stress free approach to the client when providing our services,as we believe it is crucial to be the best in our industry in order to grow as a business.Specialising in property extensions ,with a combined experience of 35+ years in the building industry.Williams and Price pride themselves on completing all projects to the highest of standards,whilst communicating with the client throughout the entire process .
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Latest review:
Liam and Stephen done a great job building my extension,we are really happy with how it turned out,I would 100% recommended them.
AAbuildingcontractors
Rating: 5 out of 5
Extension Builder in New Tredegar
We are a partnership both worked in the construction industry for many years. An undertaker all renovation and Convertion work.
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Latest review:
Plumbing- 20 Apr 2018
Very pleased with the work completed. Aaron and his apprentice Gareth arrived on time and were very pleasant and respectful throughout the whole process. Aaron allowed us time to talk things through when needed which was very helpful. They both worked quietly, efficiently and their work was very neat. Aaron was also very knowledgeable and was able to answer any questions asked. The price was competitively priced and well worth the money. Would definitely recommend.
Window Centre (wales)
Rating: 4.5 out of 5
Extension Builder in New Tredegar
We are a small family run business with 10 years experience in the trade. We specialise in all aspects off pvc or aluminium, windows doors and conservatories. No job to big or to small. We offer hassle free quotations no sales talk just one person from start to finish.
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Latest review:
Windows & Doors (uPVC & Metal)- 28 Feb 2026
Very quick Alex very polite highly recommended and reliable re placed my glass super quick thanks
D.B Plastering and Rendering
Rating: 5 out of 5
Extension Builder in New Tredegar
a highly recommend company that as been going over 40 years. We work at very high standards, very clean and tidy. You are in safe hands with us no cowboy builders, and everything is priced and made illegal for your safety.
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Latest review:
Plastering- 15 Jun 2017
Not met Dean before, friendly and professional manner, would recommend, happy with work completed Thank you.
Kwest building and landscape
Rating: 4.4 out of 5
Extension Builder in New Tredegar
Hello and welcome.we are a hard working team of craftsmen and general builders.we have been trading for over 15 years on construction and domestic project's from patios to tower blocks we are happy to help in any projects you would like us to quote and undertake thank you hope to speak to you soon
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Latest review:
Bricklaying- 22 Apr 2025
Keith left me with no front access to my house and a dangerous 20ft drop. He took my money and left me literally high and dry. He comes across as a nice guy but he cannot be trusted. I now need to try and get my money back through small claims as My Builder doesn't guarantee work.
Valleys Plastering & Construction
Rating: 5 out of 5
Extension Builder in New Tredegar
A family run business with over 25 years experience of plastering, rendering, building new homes, building extensions and loft conversions throughout South Wales & England.
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Latest review:
Plastering- 24 Feb 2026
Max did a fantastic job plastering a complicated ceiling and a number of awkward walls. He was on time, pleasant to work with and very professional in taking care of the work he was doing. Probably one of the best Plasterers I have come across.
Roy Eason Building Services
Rating: 5 out of 5
Extension Builder in New Tredegar
Hi, my name is Roy Eason. I have been in the building trade now for 30 years. In that time I have been a site manager, have run a multi million pound business and have worked on all size projects such as new build homes, hospitals, schools and hotels. No job is too big or small. Free quotations given.
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Latest review:
Kitchen Fitting- 16 Sep 2021
Roy and Nathan were absolutely brilliant from start to finish. They fitted and tiled my kitchen, dining room and hall. Unlike some other quotes I had Roy came to the house was very friendly and pleasant and there was no pressure. He and Nathan handled the job from start to finish including helping me with the 'dreaded' Howdens when I was having trouble with them and even arranged their own trusted plumber. Their workmanship was perfect down the last detail. I would definitely recommend and use them again.
Munday interiors ltd
Rating: 5 out of 5
Extension Builder in New Tredegar
🏠✨ Munday Interiors Ltd – Transforming Homes & Investment Properties Looking to upgrade your home, rental, or development project?�At Munday Interiors Ltd, we deliver interiors that combine style, practicality, and lasting value. 🔑 We Work With: ✅ Homeowners – create a space you’ll love living in�✅ Landlords – cost-effective upgrades to attract quality tenants & boost rental yield�✅ Property Developers – turnkey solutions for multiple units, ready for market faster What We Offer: Full interior design & refurbishment service Kitchens, bathrooms, living spaces & more End-to-end project management — we handle everything Tailored solutions to meet your budget & timeline Why Choose Us: 💡 Smart designs that add value�🛠️ High-quality workmanship you can trust�📊 Transparent pricing & clear communication�🚀 Fast turnaround for time-sensitive projects Munday Interiors Ltd – Your partner in creating spaces that sell, rent, and inspire.
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Latest review:
Kitchen Fitting- 2 Nov 2025
I can’t recommend James from Munday Interiors highly enough! From start to finish, the entire experience was faultless. James came to assess my kitchen and immediately stood out for his professionalism and expertise. He took the time to talk through what was actually needed — offering honest advice and practical recommendations from a non-expert’s point of view, which really helped me feel confident in my decisions. While I was away on holiday, James and his team completely transformed the space, and I came home to an incredible new kitchen. Every detail was finished to perfection — the quality of the workmanship, the precision in the fitting, and the overall care taken throughout the job were second to none. James was meticulous, organised, and genuinely passionate about delivering a high-quality result. The transformation speaks for itself — it’s modern, functional, and beautifully done. If you’re considering any kind of kitchen renovation or refit, don’t hesitate!
JCW Design & Build Ltd
Rating: 4.8 out of 5
Extension Builder in New Tredegar
Planning and building regulations drawings and applications Most aspects of building work undertaken Extension specialist's Hardscaping
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Latest review:
Extensions- 18 Apr 2019
Justin and his team were absolutely fantastic. from quote to finish, Justin knew exactly what had to be done and communicated with me all the way through our double extension. it wasn't stressful as I knew the job was with the right people and have recommended Justin to friends and family. 100% spot on! Justin will be doing our garden in the near future too. I wouldn't trust anyone else with building work
Philips Construction Ltd
Rating: 5 out of 5
Extension Builder in New Tredegar
Phillips Construction, all you construction needs in one place with outstanding workmanship, All work comes with 3 year warranty. Trusted by many big clients such as Cadwyn, Trivalis, GKR aswell as many happy domestic clients.. find us on FB… Phillips Construction the one with the big orange gorilla. Always keeping the customers budget and wellbeing at all times.
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Latest review:
Groundwork & Foundations- 30 Nov 2025
Great work by Philips Construction to overhall a rear pathway to then side if the house in order to improve the DPC and drainage.
Edwards Electrical (EEC) Ltd
Rating: 4.7 out of 5
Extension Builder in New Tredegar
My names Dan Edwards, I am the Director of Edwards Electrical (EEC) Ltd. We are a NAPIT Registered electrical contractor with years of experience in the trade. We are also MCS Accredited and RECC Registered, allowing us to install, commission and maintain renewable systems . We pride ourselves on our professionalism, efficiency and our aim is to satisfy our customers with each and every electrical job we undertake.
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Latest review:
Electrical- 3 Mar 2025
My new EV charger was installed at my home and the job was done very promptly.
BA Construction
Rating: 5 out of 5
Extension Builder in New Tredegar
Experienced Carpenter with 7 years experience. Level 3 nvq qualified in carpentry and quickly progressed into site supervisor role where I have achieved a SMSTS certificate, which has allowed me to gain a vast knowledge of all construction works. Have to ability to only produce nothing but high end quality work. I take great pride in my work and enjoy my job and delivering a finished product my clients can be over the moon with.
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Latest review:
Hard Flooring- 3 Sep 2020
Did a great job. Came when they said they would. Very fair price for the job. Would use again.
Activate construction ltd
Rating: 5 out of 5
Extension Builder in New Tredegar
Activate Construction Ltd are a family run business with an exceptional track record building quality additions to homes across south wales. Extension specialists although we can and have completed a variety of projects from structral alterations to large scale renovations. As proud fully vetted members of the federation of master builders, we are fully insured, competent and qualified regularly liaising with clients to ensure we exceed their expectations. We hold many accreditations building from concept to completion a one stop shop for any project.
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Latest review:
Extensions- 15 Dec 2024
Fantastic company!!! From start to finish, Philip and his team have been friendly, polite and are clearly very experienced experts at what they do. Excellent industry knowledge enabled them to navigate some unforeseen complications with minimal fuss and cost. Finding a builder can be a very stressful process, as there’s a lot of choice and it’s probably the second biggest investment you’ll make, only second to the actual house itself. They’ve been absolutely brilliant, with almost daily updates on their progress and plans for what they’re going to do next. Made us feel very confident in allowing them to do what they do best without a single worry. Another thing to mention is the sheer speed at which these guys get the job done. Philip makes sure that he throws as many skilled men as he can at each stage of the build to ensure that it’s competed without delay. Does pouring the foundations on the second day on site sound like a great achievement?? It certainly does to me! Would recommend to anyone. Pick these guys, you’ll be glad that you did!
Envirobuild Property Solutions LTD
Rating: 5 out of 5
Extension Builder in New Tredegar
I have over 30 yrs experience in the construction industry and hold many qualifications to include, bricklaying, engineering, and electrical installations. In 2014 I set up Envirobuild with a partner who also has an extensive construction background and we aim to provide high spec and bespoke total property solutions from extensions to landscaping. Please take time to read our reviews from our many happy customers
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Latest review:
Extensions- 1 Aug 2019
I have written review already !! But just to illiterate amazing job Leigh & workers were hard working & completed extension on time. Would highly recommend with full confidence that any job would be given their full attention to a very high standard 👍👍 top builders thank you Envirobuild x

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.