Extension Builders in Merthyr Tydfil

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

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Some of our top rated extension builders in Merthyr Tydfil

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Nathan roberts
No reviews yet
Extension Builder in Merthyr Tydfil
Experienced bricklayer with the same company since 2003, punctual and take a lot of pride in my work
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KM Building & Plastering
No reviews yet
Extension Builder in Merthyr Tydfil
If you're looking for a skilled professional who can handle all aspects of building and plastering with precision and care, you're in the right place. As a general builder and plasterer, I bring years of experience, a keen eye for detail, and a commitment to delivering top-quality results on every project. Here's what sets my services apart and why you should trust me for your next home improvement or renovation project. Specialist Skills 1. General Building Expertise • From foundations to roofing, I manage projects of all sizes. Whether you're planning a new build, an extension, or a renovation, I ensure that every phase is executed to the highest standard. • I specialize in load-bearing wall alterations, beam installations, and structural reinforcements, ensuring your property is safe and up to standard. Plastering Proficiency • My plastering skills are second to none, I can refresh old, uneven walls or ceilings with a perfectly skimmed finish, giving your space a modern, polished look • I provide rendering services whether it's traditional sand and cement or more modern silicone-based options, I ensure a long-lasting, attractive finish Other Committed to delivering quality, I am reliable and provide competitive prices.
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CJA DAVIES BUILDERS
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
WE COVER ALL ASPECTS OF BUILDING/LANDSCAPING WORK FROM PATIOS TO EXTENSIONS
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Latest review:
Extensions- 26 Apr 2025
The whole job was carried out by Cenwin and his brother Allen between the 22nd and 25th of April. The old pergola was removed completely and replaced with a superior design using first class materials and skills. My wife and I are extremely pleased with the new structure which has added a great look to our garden. We would have no hesitation in using this company again or recommending them to friends or neighbours.
Creative landscaping and building
Rating: 4.8 out of 5
Extension Builder in Merthyr Tydfil
Creative Landscaping and Building are driveway and full garden renovation specialists covering the South Wales area with 15 years experience in Groundwork’s and landscaping. We are very hard working and reliable, work to very highest standards and make sure the customer is always happy with the job. We cover all aspects of Landscaping, Groundwork’s and building works. Resin bound, Fencing, Paths and patios, Driveways, Decking, Excavator works, Footings, Drainage, And so on ...
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Latest review:
Driveways (Paved & Loose)- 16 Apr 2025
Amazing work by Adam to give us not only a large block paved driveway but also a resin surface down the side of the house, a new patio as well as a rubber crumb play area for the kids. Clear communication, attention to detail and a reasonable quote for the amount of work required. Couldn't have asked for more really. Highly recommended.
PRW Build Co.
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
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
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Latest review:
Carpentry- 26 Mar 2022
Good communication. Job done quickly and for fair price.. recommended
Lewis Bennett
No reviews yet
Extension Builder in Merthyr Tydfil
Professional and reliable contractor with 20 years experience all work undertaken is guaranteed we also design and five free quotations
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blakeon living spaces ltd
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
we are based in South Wales we specialise in renovation works experts in loft conversions and we also have a landscaping team
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Latest review:
Carpentry- 9 Feb 2021
Had glass panels fitted on my stairs, Quality service all throughout from the quote to completing. Finished to a very high standard, clean and tidy no mess very professional would defiantly recommend.
Prw bricklaying
Rating: 4.7 out of 5
Extension Builder in Merthyr Tydfil
At Prw bricklaying we are a highly skilled and highly motivated team of builders and landscapers working to high standard and main goal is to keep customers happy and get job done as quickly as possible
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Latest review:
Extensions- 3 Oct 2022
The Guys were great, excellent work, put the hours in to get the job done, 99% of the work is done they're just coming back to install the windows once they've been manufactured. But the rest of the work, I can't fault it having had a terrible experience whilst building the house a few years ago these guys went above and beyond, and proved there are good builders around. Great attention to detail and skilled. Would happily recommend them and use them again on future building projects.
Watts Building Contractors Limited
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
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.
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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.
Munday interiors ltd
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
🏠✨ 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!
Allen Building Ltd
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
At Allen Building we specialize in the larger aspects of building projects, Extensions, Renovations, New builds. We are a one stop firm. With 15 years experience. We can assist with planning permissions right through to build. We have accreditations from FMB, Trust Mark and LABC.
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Latest review:
Kitchen Fitting- 8 Oct 2023
Matt did an amazing job on fitting our kitchen. I can’t recommend him enough. A really nice man who listened to everything we wanted and was very clean and sufficient. He even worked over the weekend to accommodate us!
GC Home Improvement
Rating: 4.3 out of 5
Extension Builder in Merthyr Tydfil
Here at GC Home improvement we specialise in everything building. Interior or exterior we have you covered.
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Latest review:
Bathroom Fitting- 30 Jun 2025
Unprofessional and discourteous. Accepted my invitation to quote. Agreed a date and time to attend to quote. I rushed home from work to be available for the meeting. Trader didnt turn up. I sent an SMS messaged to query. No response. I sent a message on this platform to query. No response. No message to cancel. No message to apologise and explain. No courtesy. No respect for peoples time. Be mindful of this when selecting GC Home Improvement. In my experience, this kind of disregard can sometimes translate into similar disregard when it comes to workmanship.
Williams Carpentry & Building Contractors Ltd
No reviews yet
Extension Builder in Merthyr Tydfil
We are a carpentry & building company, we take on any type of construction work, kitchens, bedrooms, bathrooms, extensions, garage conversions, landscaping & gardening. We have completed extensive work in many schools, office refurbishments, universities, apartment renovations.
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A.Morgan Groundworkers Ltd
No reviews yet
Extension Builder in Merthyr Tydfil
We are a Groundworks company with more than 30 years experience in all aspects of groundwork, fully insured with all the relevant certificates and licences
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CK Carpentry and Construction
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
At CK carpentry . We are friendly and reliable tradesmen. We try to ensure only the best service for our customers. We undertake all aspect of carpentry work with a 10 years experience. We have built up a great team of trademen Which allows us to take on all building works. We specialise in 1st and 2nd fix carpentry also end to end refurbishment of apartments, hotels,shop fits. Previously working on new build and commercial projects. We also offer complete kitchen installs from design to fit.
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Latest review:
Kitchen Fitting- 20 Aug 2019
Jon is amazing, clearly highly skilled and his experience shone through, he did such a great job of fitting my kitchen. He was extremely patient with me and my kitchen supplier. He went out of his way to ensure I had what I needed to use my kitchen while we waited on other parts to be delivered. He also laid my laminate floor & perfectly hung 4 doors for me. There are one or two tiny bits pending, but to be fair he's waiting on me to decide when I want my other job done, so I know he will sort them out at the same time. I'd never use any other carpenter again. Jon is simply the best.
Trebow Construction
Rating: 5 out of 5
Extension Builder in Merthyr Tydfil
House Renovation Specialist. Extensions. Commercial work.
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Latest review:
Restoration & Refurbishment- 23 Nov 2022
Rob worked on a few of my projects. It went quite well. Rob is a lovely guy to work with and a very honest person. I would recommend him.

Top rated Extension Builders

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

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

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 Merthyr Tydfil 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 Merthyr Tydfil who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Merthyr Tydfil?

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

Find extension builders in Merthyr Tydfil with MyBuilder

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

Step 2: Compare different extension builders in Merthyr Tydfil

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

Step 3: Hire Merthyr Tydfil extension builders with confidence

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

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

What to ask a Merthyr Tydfil extension builder before hiring?

Before hiring an extension builder in Merthyr Tydfil or extension building company in Merthyr Tydfil, 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 Merthyr Tydfil?

An extension builder in Merthyr Tydfil 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 Merthyr Tydfil 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 Merthyr Tydfil?

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 Merthyr Tydfil 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 Merthyr Tydfil 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 Merthyr Tydfil

Can an extension builder in Merthyr Tydfil help with planning permission?

Yes, many extension builders in Merthyr Tydfil 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 Merthyr Tydfil handle everything from design to construction?

Many Merthyr Tydfil 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 Merthyr Tydfil help with materials and finishes?

Yes, most extension builders in Merthyr Tydfil 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.