Extension builders in Llantwit Major

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

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Some of our top rated extension builders in Llantwit Major

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A.Morgan Groundworkers Ltd
Rating: 5 out of 5
Extension Builder in Llantwit Major
Mini Digger and Driver Specialist 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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Latest review:
Groundwork & Foundations- 2 Aug 2026
I can’t recommend Alan highly enough. He completely transformed our garden in just a day and a half, using a mini digger and working alongside his labourer to level the entire area. From start to finish, Alan was hardworking, professional, and clearly knew exactly what he was doing. The quality of the groundwork is outstanding – the garden is now perfectly level and ready for the next stage of our project. He worked efficiently, didn’t cut any corners, and kept everything tidy throughout. I was also amazed that he managed to get his mini digger through what felt like the smallest gap imaginable. I’m still convinced he must have folded it in half to get it through! If you’re looking for someone reliable, skilled, and who genuinely takes pride in their work, Alan is the person to call. Fantastic service, excellent value for money, and I’d happily recommend him to anyone needing groundwork or landscaping.
RTW Builders Ltd
New on MyBuilder
Extension Builder in Llantwit Major
Welcome to RTW Builders Ltd, your trusted partner for all your construction needs. We proudly serve South/Mid/West Wales areas and more with a wide range of expert services. RTW was created by a group of highly skilled tradesmen who between them have been working in the building industry for decades. We firmly believe that we provide traditional skills along with modern echo friendly methods and technology to provide an efficient service. Our wealth of experience allows us to offer skills gained over many years. The health and safety of our team, clients and public is of the highest priority. No matter what stage you are at in your project we can offer a complete service. We can deal with planning applications and in some cases planning refusals. Building control applications. Insurance claims, fire, flood and general damage. We have a dedicated team to carry out the ever more popular project of garage and loft conversions. If you need additional sitting room, office or separate living accommodation garage and loft conversions are an economic way of increasing a living space and often can be completed within permitted development which does not require a planning application. We are here to help.
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Louis deere
No reviews yet
Extension Builder in Llantwit Major
Self employed bricklayer with 5 years experience. My experience ranges from being on site building new build houses, council repair work, and garden wall/patios. The type of work I would normal undertake involve brick/block work and patio/slabbing.
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Archstone Masonry Limited
No reviews yet
Extension Builder in Llantwit Major
Here at Archstone Masonry we pride ourselves on delivering the best possible quality and service from the moment you first contact us, to the finished result. Our highly skilled and experienced team have the capability to turn your masonry dreams into reality, no matter how big or how small. With 50+ years construction experience between them, Richard, Lorien and the team have the skills and knowledge to complete detailed projects to the best possible standard.
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KMDM BUILDING SERVICES
No reviews yet
Extension Builder in Llantwit Major
All aspects off building services extensions,plastering, rendering, garden landscaping general building and maintenance. Stonemasonry repointing and lime rendering
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Home fix builders ltd
Rating: 4.8 out of 5
Extension Builder in Llantwit Major
I've been in the building industry for 40 years .i undertake domestic and commercial projects ,small and large contracts from extensions to new builds Olso refurbishments.and complete bathroom and kitchen installation .I have a good customer portfolio . And now looking for new to expand my customer base.
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Latest review:
Conversions - General- 6 May 2018
Hardworking. Reliable. Tidy. Meticulous. Will definitely be considering for future jobs.
Morgan Plasterers
Rating: 5 out of 5
Extension Builder in Llantwit Major
My business is plastering.i have been in the trade for 30yrs.i normally plaster full rooms, dry line and render.
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Latest review:
Plastering- 3 Jul 2016
Friendly, efficient, competitively price, clean and tidy!! They've done a really good job of plastering our bedroom ceiling.
PnP Facilities
No reviews yet
Extension Builder in Llantwit Major
My name is Paul and I’m the proprietor of PnP Facilities. I am a professional senior site manager and quantity surveyor with 30 years trade experience. PnP Facilities is a small company with a good reliable, friendly, honest and clean workforce. We are able to cover most trades and use regular sub contractors for any elements we can’t undertake, however we still manage the process to ensure every project is done to the highest standards. Our costs are realistic with no nasty surprises and we provide free professional quotations. New to My Building, but by no means new to building, all work guaranteed and references provided on request.
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K & C Pearce Ltd
No reviews yet
Extension Builder in Llantwit Major
K & C Pearce is a construction company specialising in refurbishment projects across South Wales. We undertake a wide range of works, including small extensions, development projects, void and empty property works, full refurbishments, kitchens and bathrooms, wet rooms, adaptations, and dilapidation works.
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MR Roofing & Construction
No reviews yet
Extension Builder in Llantwit Major
Hi I’m mark I’ve been in the roofing trade for over 25 years flat and pitched roofing, we then went into building after it leading to this with 4 experienced workers no job is to small or to big, our knowledge in the roofing industry is one of the best we listen to what are customers want and suggest best options for them to give them the best solution for there project
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P.A.Davies&son
No reviews yet
Extension Builder in Llantwit Major
I’m a very skilled tradesmen with 30 years experience can do mostly everything. Very friendly and approachable worker
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Michael
No reviews yet
Extension Builder in Llantwit Major
Hi Im Michael, a professional time served NVQ LEVEL 3 Advanced Bricklayer covering all aspects of brickwork based in Pontypridd
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Amarok Building Services Ltd
No reviews yet
Extension Builder in Llantwit Major
Fully insured Local building contractor with 20 years experience extensions, lofts, driveway’s
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Wooden Artefact Ltd
Rating: 5 out of 5
Extension Builder in Llantwit Major
We offer the highest level of service.Our quality workmanship leaves contented customers with a positive experience.Pricing can be negotiated and we are happy to provide a free estimate.Every job receives our personal attention and we are happy to adapt to meet our customers needs as the job progresses.
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Latest review:
Conversions - General- 2 Dec 2025
Radek and his team provided high quality work which will stand the test of time, I am delighted with what they have done. Excellent job.
Rumi Brick & Build
No reviews yet
Extension Builder in Llantwit Major
Building & beautifying for 20 years! With two decades of experience in the building industry, we bring craftsmanship, creativity and care to every project. From solid brickwork to stunning landscaping we can help you create your dream project. All aspects of building work undertaken, including extensions, from start to finish completed to a plaster-ready standard.
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JBS Brickwork
No reviews yet
Extension Builder in Llantwit Major
JBS Brickwork specialize in high-quality brick and blockwork for residential, commercial, and renovation projects. With a commitment to precision and exceptional craftsmanship, our expert team delivers reliable construction, from foundational brickwork to detailed restoration and repairs
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Top rated Extension Builders

Our Extension Builders in Llantwit Major, 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 Llantwit Major?

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 Llantwit Major 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 Llantwit Major who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Llantwit Major?

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

Find extension builders in Llantwit Major with MyBuilder

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

Step 2: Compare different extension builders in Llantwit Major

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

Step 3: Hire Llantwit Major extension builders with confidence

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

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

What to ask a Llantwit Major extension builder before hiring?

Before hiring an extension builder in Llantwit Major or extension building company in Llantwit Major, 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 Llantwit Major?

An extension builder in Llantwit Major 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 Llantwit Major 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 Llantwit Major?

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 Llantwit Major 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 Llantwit Major 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 Llantwit Major

Can an extension builder in Llantwit Major help with planning permission?

Yes, many extension builders in Llantwit Major 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 Llantwit Major handle everything from design to construction?

Many Llantwit Major 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 Llantwit Major help with materials and finishes?

Yes, most extension builders in Llantwit Major 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.