Extension Builders in Llantwit Major

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (1 reviews)

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Some of our top rated extension builders in Llantwit Major

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Ph plasterers
Rating: 5 out of 5
Extension Builder in Llantwit Major
Been plastering for 40 years
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Latest review:
Plastering- 26 Jun 2026
First class work by skilled and friendly workers. Arrived punctually. Laid plastic on all stairs and floors and cleaned up afterwards. Would highly recommend them.
Select Design Garden Landscaping
Rating: 5 out of 5
Extension Builder in Llantwit Major
38 years experience in designing and building landscape gardens. Complete garden design from start to finish. Patio's, trees, shrubs, planting, all types of landscaping, extensions, garden lighting.
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Latest review:
Landscaping- 21 Apr 2019
Very happy with completed job. Took a little longer than expected due to size of task. Felt comfortable with leaving Jason Johnathon and crew to complete when called away from home for couple days. Time discussing details before hand ensured team were clear with what we wanted. Workforce was punctual, courteous ,professional and helpful with suggestions! Would definitely call on them again and have no hesitation in recommending.
Ecobuild and landscape
Rating: 5 out of 5
Extension Builder in Llantwit Major
Here at Ecobuild we a family run business, who are skilled, professional and very approachable. We have been fully established for 15 years and have taken on the smallest garden projects to mammoth size projects across Britain. We serve and hold a great rapport with the local community and majority of our work comes through high recommendation. We are comfortable working to set plans or custom ideas, but also more than happy to advise, give input and further ideas if required. Many thanks, Tom
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Latest review:
Landscaping- 12 Apr 2026
So grateful for their hard work. Garden is amazing. Always showed up on time and started/finished job quickly. Will be using in future and 100% recommend 👏🏼
A1 Building Solutions
Rating: 4.5 out of 5
Extension Builder in Llantwit Major
With experience in all aspects of building works here at A1 Building solutions we cover all types of building works from the footing rite up to the chimney all works we carry out comes with a 12 month guarantee
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Latest review:
Extensions- 8 Jan 2025
I contacted A1 builders for a quote on an extension inside kitchen area renovated with new fitted kitchen installed. The quote was fair and we did come into some complications but it was rectified. Workers were polite and friendly although a little untidy but the end result far exceeded my expectations and I’m very happy with the work and will use A1 builders again.
Tudor Construction Preservation Services Ltd
Rating: 5 out of 5
Extension Builder in Llantwit Major
We are a family run business and have been trading since 1986, we carry out all aspects of construction and renovations and specialise in the sympathetic restoration of period properties. All work is carried out by our own highly skilled employees.
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Latest review:
Damp Proofing- 12 Jan 2016
Tony and his team were superb. They assessed the work, drew up clear plans so I understood what the job entailed and completed the interior work to a very high standard. Every day they swept and mopped to reduce my workload and for the first time in my experience of builders, every last scrap of rubble was removed. A very happy customer; cannot recommend them highly enough.
Evans builders
Rating: 5 out of 5
Extension Builder in Llantwit Major
My business has had 25 years experience in the building industry specialising in renovations, attic conversions,extentions kitchens and bathrooms, landscaping, we're happy to take on big or small jobs, some of my work has been videod and put on YouTube under the name the welsh builder
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Latest review:
Loft Conversion- 3 May 2026
Big project !
Allen Building Ltd
Rating: 5 out of 5
Extension Builder in Llantwit Major
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!
Muscle Stone & Brick Solutions
Rating: 5 out of 5
Extension Builder in Llantwit Major
city & guilds qualified and With 25 years in the trade and 15 years working on my own jobs I feel I have a good understanding of customers needs. I charge a fair price based on the current industry, also taking into account your budget. I pride myself on being easy going, my honesty and try always to act with integrity, to build a great relationship.my goal is a customer left with job done to a high standard at a realistic price. Paul. musclestonebricksolutions.co m
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Latest review:
Stonemasonry- 21 Aug 2020
Paul did a great job - we're very happy. He's a great guy and kept us informed at all times. I'm very happy to recommend Paul to others.
Greenfield Close Development Ltd
No reviews yet
Extension Builder in Llantwit Major
We are an award winning property development business, and we specialise in extensions and high quality building work. We have just built 4 houses and completed a conservatory extension. We are keen to offer our services to homeowners who are looking to extend their properties, or carry out renovations or new builds
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Adam Bosley Brickwork and Paving
Rating: 5 out of 5
Extension Builder in Llantwit Major
Hi, My name is Adam I'm honest and hardworking, my work is always to the highest standards, I always show up for work on time, I leave the site clean & tidy overnight and when finished, I never take on work that is beyond my capabilties and I stick to my quotes and never ask for more money.
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Latest review:
Bricklaying- 9 Dec 2017
Excellent job done, all within a week of first contact. Great communications and reliable.
GC Home Improvement
Rating: 4.3 out of 5
Extension Builder in Llantwit Major
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.
Urban craft property maintenance
Rating: 3 out of 5
Extension Builder in Llantwit Major
Based in South Wales, Urban Craft provides expert property maintenance services to commercial clients, homeowners, and landlords. We specialise in landscaping, drainage solutions and general building work, offering reliable, high-quality service tailored to each property’s needs. Whether it’s improving outdoor spaces, resolving drainage issues, or handling structural repairs, our experienced team is committed to keeping your property in top condition, all year round.
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Latest review:
Landscaping- 21 May 2026
Came to take measurements but never followed up with an actual quote. Highly disappointing. I find this unprofessional.
Plastermind
Rating: 5 out of 5
Extension Builder in Llantwit Major
We are a construction company that is able to undertake any aspect of building work from landscaping jobs all the way up to full renovations and extensions to commercial and domestic projects. We know your home is more than just a place to live – it's somewhere you're proud of and reflects who you are. When the time comes to make changes, whether it's re-plastering a room or exterior render, adding a porch or conservatory, you'll want to work with a company that operates to the highest standards. That's why we offer a personalised service to every customer, carrying out our work to the highest quality and taking care to leave your home clean and tidy. if you want to transform your home, you can rely on us to do a great job. Every job we do is tailored to our customers
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Latest review:
Plastering- 10 Feb 2026
Jay was great. Great communication, work, job, reliable, clean and friendly. Thanks mate
active groundwork services
Rating: 4.5 out of 5
Extension Builder in Llantwit Major
my business is based on trust and design of the project undertaken that the customers are not only happy with the results. but promote myself also on the after care of the project . I mainly contract on landscaping ‘extensions ‘ porcelain and sandstone patios ‘but also specialise in driveways ,resin ,tarmac etc.. Thank you for taking time to view my profile…….regards Jamie
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Latest review:
Landscaping- 19 Apr 2019
For many years I have had problems with the grass quality in the back garden with weeds and moss. This year I decided to have a patio and artificial grass laid to overcome my frustrations. Jamie from active groundwork services came to view the task I had initially thought of, with his experience in this type of garden work he suggested I go a little further and designed a plan to rejuvenate the area. What a complete difference and impact his idea had on the project, the end product was totally amazing. Jamie's quality of workmanship and finishing is of a very high standard, he goes out of his way to provide advice and suggestions throughout all stages of the work, and had a very helpful understanding attitude, this coupled with a competitive price, I would highly recommend Jamie to anyone, to a point that I would not consider any other firm before consulting him. There are a few other little issues/jobs I have in the front and side of the house which Jamie is kindly going to address in the near future. Thank you.
Maintenance Studio
Rating: 4.7 out of 5
Extension Builder in Llantwit Major
Not your usual construction company: I’m a crafter and visual artist educated in interior design and architecture with a passion in creating beautiful spaces. I like to work myself on smaller projects such as bespoke furniture, small renovations and quality decorations but for bigger projects I can manage a team of traders and craftmans to offer premium property maintenance services, domestic and commercial renovations, loft and extensions, outbuildings etc. Unusual and creative projects all welcome. I have a long experience in bespoke garden buildings of exceptional quality, luxury feeling and stylish design. I design and build your dream!
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Latest review:
Carpentry- 15 Jan 2019
The standard of work was abysmal. The photos in the photo gallery must have been taken from someone else's site. Catalogue of errors. Where do I start. - Failed to follow the instructions on boarding the ceiling, instead boxing off part of the room. - Much of the insulation was removed, - The boards were not properly screwed down, leaving unlevelled floor board, with dips and rises in the floor. - Both the flooring and ceiling boards had gaps, which were filled with foam. - The work caused cracks in the ceiling below. - The original fitted loft door was cut. This was cut short. Then repaired by putting another piece of wood on top. The loft door is now two pieces of board stuck together, which is unsightly to look at. -Since the "job" was done the loft door does not stay closed, as the lock was not properly fitted probably due to the loft door not fitting. -The ladder is flimsy, the cheapest on the market. As the loft is high I have been told that the ladder is inadequate. I requested the receipt to return it. The receipt was sent to me after the 30 days that the ladder was purchased. The shop were it was brought refused to take it back as it was outside the refund period. The flooring is so bad it has to be boarded over, which is an additional cost. The plasterer had to screw down boards before he could start plastering.
Plumbing and plastering services
Rating: 3.4 out of 5
Extension Builder in Llantwit Major
My name is Gareth and we undertake all plumbing services and plastering works, bricklaying and extensions Many Thanks
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Latest review:
Plastering- 11 Dec 2025
They agreed on a reasonable price however the work carried out wasn't the best. They only single skimmed some of the walls and there are cracks and uneven waves in places. Job was a sub contract, wasn't the best, wasn't the worst. Good rates and very punctual. Can probably do with a bit more attention to detail. Nice, friendly chaps. Very respectful and polite. Downside is that they left all the mess instead of taking it away and disposing of it. Overall, cant really complain too much as they done the job for a very fair price.

Top rated Extension Builders

Our Extension Builders in Llantwit Major, are rated 5 out of 5 based on 1 review 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.