Extension Builders in Llanelli

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

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Some of our top rated extension builders in Llanelli

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FLCarpentry
Rating: 5 out of 5
Extension Builder in Llanelli
All aspects of Carpentry carried out including, 1st and 2nd Fix Kitchens Bathrooms Flooring Fencing Decking & More.
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Latest review:
Bricklaying- 4 Aug 2023
Fraser was very helpful. Unlike many tradesmen he didn't spend half the time slagging off the work of other trades. He was professional and seemed to genuinely want to help find the leak, providing good suggestions along the way.
G Toutt Building
Rating: 5 out of 5
Extension Builder in Llanelli
G Toutt Building has 18 years experience in the building industry, undertaking all types of Building work from small remedial jobs, landscaping, Extensions and New Builds. And is also a Lime Mortar Specialist/Stonemason, working on Old Buildings within the Heritage sector.
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Latest review:
Garden Maintenance- 27 Dec 2021
Really happy with the work Gwyn did in my garden. Really nice genuine man and did a really great job, tidied away and removed all the rubbish too. Absolutely recommend!
Alkel Homes Ltd
Rating: 4.5 out of 5
Extension Builder in Llanelli
We provide a complete construction service from foundations to Tiling your kitchen!
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Latest review:
Bathroom Fitting- 7 Dec 2025
Didn’t finish the job. Had leaks after and the aftercare was appalling! Wouldn’t hire again
T&E Groundworks
Rating: 4 out of 5
Extension Builder in Llanelli
Hi I'm Tom, I am a Groundworker by trade. I specialise in groundworks, fencing, landscape gardening and bricklaying. At 16 I began renovating everything from old barn conversions to modern properties. Since then I have been a self employed groundworker working on property developments, doing everything from the deep drainage and roads to laying the last slabs around the finished plots (houses). I have now set up our small family run business and are currently trying to build a custom base. Please feel free to call at any time for a free quote.
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Latest review:
Groundwork & Foundations- 26 Feb 2025
Amazing job. Thank you very much for your help prior to the job being done. Highly recommended and would have back anytime.
Miggis Carpentry and Building
Rating: 5 out of 5
Extension Builder in Llanelli
Hello my name is Paul, I carry out all aspects of carpentry and building always to a high standard. I have 14 years experience myself and slowly growing my company having my own qualified tradesmen working for me. I provide a free no obligation quote.
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Latest review:
Decking- 5 Jun 2020
Would highly recommend Paul his work is second to none . From him coming to view the job ,the promptness of the quote to the finished product . He arrived early every morning worked until late he is meticulous and takes pride in his work ,cleaned up and left no mess. Also a lovely personality and easy to work with . Looking forward to entertaining on my beautiful decked area . Thanks Paul you've done a fantastic job I'm really grateful .
Matthew & son building ltd
Rating: 5 out of 5
Extension Builder in Llanelli
Matthew & son building ltd is a all round building company, the work that we do is all aspects of building, plastering, roofing, fencing, we are a family run business, hard working and customer friendly.
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Latest review:
Matt was very professional, reliable and tidy. He kept me informed every step of the way. Turned up on time, if he was delayed at the builders merchant, I received a quick call to let me know. I originally asked Matt to complete some plastering in my spare room which also needed the ceiling to be removed. Although it was a messy and dusty job, at the end of every day, Matt would tidy up and ended up doing a fantastic job. I was very impressioned by his work that I also asked him to complete hallway, stairs and landing. Again an excellent job completed and I would recommend him in a flash. 10/10 Matt, thank you
Burns Building & Plastering Ltd
Rating: 5 out of 5
Extension Builder in Llanelli
Hi ... With over 30 years experience in the trade to cover all your building needs. Extension and refurbishment specialists.All work carried out to the highest standard and pride taken on cleanliness. Each individual task carried out by highly qualified tradesmen. References and portfolio available on request. Regards Paul Burns
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Latest review:
Extensions- 12 Oct 2018
We are so glad that we hired Paul and his team to build our extension. Everyone was so professional and friendly and tidied up at the end of each day, which kept our neighbours happy too as there was a skip and a portaloo on the pavement outside which were regularly emptied and cleaned during the project. As well as a lovely extension the plumber (another Paul!) made a superb job of upgrading our central heating system and at the same time we decided to go for it and have a new kitchen too. This involved taking down the ceiling and having new spotlights fitted before the ceiling was replaced, the whole room was replastered and then a fabulous kitchen was built to match the cupboards in the utility extension. This was fitted by the carpenter Rob who even constructed a cupboard to fit the ironing board into! The whole project took 11 weeks which was longer than anticipated but as we had added extra work to the original plan this could not be avoided. We are delighted with the finished result. It was expensive but worth it as the quality of the work is excellent and the build blends well with our original home. As the building inspector himself said - stunning!
R Mitchell
Rating: 4.4 out of 5
Extension Builder in Llanelli
I have worked in the building trade for the past 30 plus years & have various skills that include general building work from house extensions to kitchen/bathroom fittings.
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Latest review:
Extensions- 21 Apr 2020
AVOID RICHARD. DO NOT EVEN ASK HIM TO QUOTE. YOU WILL VERY LIKELY REGRET IT. I haven’t got enough space here to go into detail unfortunately. I have now had to get other people in to re do flat roofs that I had paid him for and have leaked since the day he installed them which has cost me thousands of pounds. I have had to get people in to complete the build because he stopped turning up early Feb and admitted he was doing other work. He has cost me a lot of money and has been paid to order materials which haven’t arrived some four months later. As others are completing his work we are finding more and more problems with his work. Richard has said he has been ill, but all these problems occurred well before that. He has a book of excuses. He refuses to answer his phone and will only communicate by text. When questioned on things, such as from where he allegedly ordered materials four months ago that have never arrived, he stops replying. I have tried to write out in more detail but I keep exceeding the word limit of the page, so all I can do is warn you not to deal with this person. He is unreliable, his workmanship is poor, he cuts corners and, he is in my opinion, completely dishonest. I have spent thousands rectifying and completing his work so far with more to come. He may respond to this with a load of excuses. Do not believe him. Do not trust him with your project. Do not trust him with your money.
Adapt Group Ltd
Rating: 5 out of 5
Extension Builder in Llanelli
Professional Company offering a range of building works in the South Wales area.
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Latest review:
Conversions - General- 6 Oct 2024
I cant fault Rhidian and his team- they were professional from start to finish. It was a refreshing change to have builders that kept in touch throughout, who did the work swiftly and left the house cleaned up afterwards. They are clearly experienced and work to a high standard. They woyld be the first people I go to if I ever need more work done
KG carpentry and building
Rating: 5 out of 5
Extension Builder in Llanelli
We are a local carpentry/building firm who take on anything from the smaller jobs such as skirtings, fitting internal doors, kitchen fitting, full bathroom refits. We also take on larger jobs such as shop fits, HMO’s, extensions and attic conversions, with an affordable and quality finish to all our work.
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Latest review:
Carpentry- 20 Nov 2020
Very good service. genuine nice team. he started and finished in time. Highly recommended. Thank you Kyle
Knock on wood Swansea
Rating: 5 out of 5
Extension Builder in Llanelli
Small family run business. Have close to 20 years of experience in building industry. Specialise in custom builds and custom carpentry work like staircases, kitchens and built in wardrobes built from scratch. Our building journey had started in London where quality really matters and a high end finish is always expected. We want to deliver that same high standard in south wales and build our reputation based on quality of work. At beginning of 2019 as our property portfolio grew and have also seen an opportunity to offer our services and knowledge locally in Swansea and surrounding towns. We offer services from design to executing the project and getting it over the finish line.
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Latest review:
Extensions- 7 Jul 2025
Build in process at present . Chose as well priced with detailed quote for each part of build , found them conscientious, excellent sticking to timescale and engaged well with building process and any updates ensuring we are happy with build . Kept drive covered to protect resin and considerate to neighbours whilst work is being carried out . Already discussing future projects as standard of work excellent and reliability of having good builder . Would highly recommend for all building work Sian and Anthony Davies
Bardic Construction Ltd
Rating: 5 out of 5
Extension Builder in Llanelli
We are a building and civil engineering company with 30 years experience. We are trusted by National Grid to carry out building and groundwork and are accredited by government schemes such as as Constructionline and Chas. We carry out groundwork, resin bound driveway work, tarmacing, concreting, paving and new build projects. We are a friendly family run company who specialise in Commercial Work and now providing a domestic service. Check out our Google references (5star).
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Latest review:
Driveways (Tarmac Surface)- 2 Nov 2020
Richard had only just joined MyBuilder and approached me to look at the job. He has had many years experience in construction and civil engineering. I had a few technical type questions which Richard answered obviously knowing his stuff unlike other people who looked at the job. Communication was good throughout the process and the organisation was slick. It was nice to see the management checking the quality of the work (not that it needed it) which to me demonstrated a pride in the job. The drive was finished today and it looks amazing. I would highly recommend Bardic Contruction.
Dex-Renovations Group
Rating: 4.9 out of 5
Extension Builder in Llanelli
Renovation experts that undertake domestic installations big and small. Dex-Renovations Group ensure top quality tradesmen are provided to help create your dreams and leave you with the high quality renovation you asked for. With years of experience renovating houses we pride ourselves on being honest, hardworking and reliable. Please don’t hesitate to ask us any questions and we will get back to you. Areas Covered - Swansea - Port Talbot - Neath - Llanelli - All surrounding areas
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Latest review:
Electrical- 12 Jan 2025
Amazing job definitely would recommend
Chris Morris & Son Building and Maintenance Contractors
Rating: 5 out of 5
Extension Builder in Llanelli
Hi my name is Chris .I am a NVQ love 3 qualified bricklayer .I have 27 years experience in the building industry .As well as bricklaying I can fit kitchens and bathrooms also I can do carpentry , tiling , plastering , roofing and much more . No job to small message me for a free quote.
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Latest review:
Bricklaying- 10 Oct 2025
Very good all round
Km building and landscaping
No reviews yet
Extension Builder in Llanelli
Hello from K&M building and landscaping. Here we cover a variety of outdoor building and landscaping work. We cover all of Llanelli and surrounding areas, we pride ourselves on our commitment to provide a fast and professional service, while maintaining high quality standards of work at very competitive prices!
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The Home Extension Company Ltd
Rating: 5 out of 5
Extension Builder in Llanelli
The Home Extension Company has earned its reputation as being one of the leading Home Development Companies in and around South Wales. We pride ourselves on developing both smart, high-tech buildings, and traditionally constructed buildings to a very high standard. Working with a strong team of industry professionals, we have a proven track record in unlocking value in sites and translating client and investor visions into reality. To learn more about our company profile, get in touch today.
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Latest review:
Bricklaying- 2 Oct 2018
Excellent communication from David, really pleased with the price and the work. We would definitely use again.

Top rated Extension Builders

Our Extension Builders in Llanelli, 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 Llanelli?

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 Llanelli 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 Llanelli who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Llanelli?

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

Find extension builders in Llanelli with MyBuilder

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

Step 2: Compare different extension builders in Llanelli

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

Step 3: Hire Llanelli extension builders with confidence

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

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

What to ask a Llanelli extension builder before hiring?

Before hiring an extension builder in Llanelli or extension building company in Llanelli, 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 Llanelli?

An extension builder in Llanelli 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 Llanelli 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 Llanelli?

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 Llanelli 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 Llanelli 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 Llanelli

Can an extension builder in Llanelli help with planning permission?

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

Many Llanelli 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 Llanelli help with materials and finishes?

Yes, most extension builders in Llanelli 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.