Extension Builders in Clynderwen

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Some of our top rated extension builders in Clynderwen

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Dohertys General Building Services
Rating: 5 out of 5
Extension Builder in Clynderwen
I've been in the building industry for 20 years we specialise in all types of general building work . I have 2 persons employed one with over 20 years building experience and a labourer . We offer a free quotation on any work. Travelling is not a problem!
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Latest review:
Decking- 18 Jun 2017
absolutely brilliant!!they turned up on time,even worked in the rain, completed the job more or less on time and did a great job of work.
RAP Construction Services Ltd
No reviews yet
Extension Builder in Clynderwen
RAP Construction Services Ltd - Domestic & commercial. New build, extensions Design & build and minor civil engineering projects. All requirements undertaken Our staff have over 35 years experience within the construction industry with a vast knowledge regarding all types of construction. We have both a major works section catering for commercial projects as well as a minor works section for domestic projects. Covering Carmarthenshire, Pembrokeshire and Ceridigion.
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Daniel thomas
No reviews yet
Extension Builder in Clynderwen
I am a bricklayer with over 12 years experience with work to a high standard! Blockwork Brickwork Stonework Patios Rendering Fencing General building. Facebook profile: D.Thomas Bricklaying
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M.A.P Building
Rating: 5 out of 5
Extension Builder in Clynderwen
M.A.P Building is a small business run by father and son,catering All aspects of building and carpentry with 30years experience
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Latest review:
Plastering- 18 Aug 2018
Great job and responded very quickly. Would recommend.
F.k building
Rating: 5 out of 5
Extension Builder in Clynderwen
We are a small building company consisting of a qualified bricklayer and plasterer, with over 20 years of combined experience in the building trade. We carry out a wide range of building work and pride ourselves on delivering a high standard of workmanship throughout.
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Latest review:
Stonemasonry- 11 Feb 2026
Great professionalism, fantastic workmanship. I cannot recommend Fin enough. He rebuilt our stone wall after a lorry knocked it down and it looks beautiful, when we need anymore stone work done we will not go to anyone else.
RSG Energy Ltd
Rating: 4 out of 5
Extension Builder in Clynderwen
RSG are a one stop Construction Contracting company. We have a team of highly qualified and skilled workforce, able to carry out all aspects of Construction work from Project Management and Design Consultations through to Ground works, blockwork, Carpentry, render, roofing to decoration. We also work on Renovation Projects too. We cover all types of work from Dometic, Commercial, Industrial to Agricultural.
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Latest review:
Electrical- 28 Oct 2020
Had to kick him off the job as his work was shocking in every sense . Advertised himself as a qualified electrician and a member of a professional body which was a lie Bare wiring left that electrocuted our dog New bits of cable joined to old 1970s wiring DO NOT USE ! Caused more damage to the property and ended up having to get in a proper electrician A convincing conman .
Fisher & Family
No reviews yet
Extension Builder in Clynderwen
We are a family run business,I have been trading for 15 years with the highest qualifications we offer a fast friendly reliable service,full portfolio available
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Kev builder
No reviews yet
Extension Builder in Clynderwen
Building plastering roofing ground works kitchen/bathroom tiling
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Asd plastering
No reviews yet
Extension Builder in Clynderwen
Experienced father and son partnership with over 40 years combined experience undertaking all aspects of the building trade from new builds to extensions and small repairs
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JR Building & Carpentry
Rating: 5 out of 5
Extension Builder in Clynderwen
Hello, my name is Jordan. I’m a highly experienced multi skilled tradesman with qualifications in carpentry and plumbing. I take on all aspects of carpentry and general plumbing 1st and 2nd fix. I also specialise in fitting bathrooms and kitchens. Full house refurbishments and extensions from start to finish. I have a team that covers all trades. I take pride in being on time and keeping the work place clean and tidy. My rates are very competitive and flexible working hours to suit you. I can provide plenty of references.
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Latest review:
Roofing (Flat)- 10 Sep 2025
Did a great job and very quick and professional.
Jones Construction Carpentry & Building
Rating: 5 out of 5
Extension Builder in Clynderwen
We work throughout south west Wales for the last 20 years covering all types of building work from extensions,roofing,plastering,brick block laying,1st&2nd fix carpentry,kitchens,bathrooms, tiling,driveways, hard landscaping paving,walling,decking,fencing etc Full project management from start to finish. City and guilds qualified level 3 carpentry & CIOB. EAL level 2 plumbing and heating City and guilds level 3 plastering Wood burning stove installers hetas registered.
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Latest review:
Roofing (Pitched)- 4 Apr 2025
Chris was very responsive, providing a quote quickly and turning up to start the job on time. This doesn’t happen often these days. He rebuilt our chimney (providing photos throughout the job). He also decorated the outside of our stone cottage, replacing render where necessary, and all work was done to a high standard. He also spotted some issues with our roof slates, which he was able to fix. I have no hesitation in recommending him.
Oren Construction Ltd
Rating: 5 out of 5
Extension Builder in Clynderwen
We are a construction company based in Carmarthen. We have been established since 1987. We have a long standing working relationship with various companies such as Aviva, Policy expert, Tescos, and the National Trust. As we specialise in all aspects of construction which meet the needs of these companies. We also carry out works domestically and tend to use this platform in the winter months when works get a little quiet.
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Latest review:
Plastering- 5 Jun 2023
Very happy with the plastering. Professional, punctual and the work was of a high standard. Would recommend.
DMS BUILDERS AND ARCHITECTURAL DESIGNS
No reviews yet
Extension Builder in Clynderwen
With more than 36 years of experience in the industry, our team at DMS Builders & Architectural Designs prides itself on delivering top-notch building services. We're not just builders; we're creators, offering comprehensive architectural design solutions using AutoCAD. From the initial design phase through to planning and the creation of full construction drawings, we're committed to bringing your vision to life with precision and excellence.
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Emyr Hughes
No reviews yet
Extension Builder in Clynderwen
I have been building for 30 years, I have been a sole trader for the last 18 years, I am a member of the FEDERATION OF MASTER BUILDERS, I am a carpenter and general builder with a wide variety of skills, I have a couple of men working for me so I can carry out a selection of jobs at the same time.
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Daniel Evans Building
No reviews yet
Extension Builder in Clynderwen
Local builder with 10 years experience. Self motivated, highly skilled and professional workmanship. I specialise in refurbishments, specialist stonemason, skim, render, patios, brick and block work and carpentry work undertaken.
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Glynderi Builders
Rating: 4 out of 5
Extension Builder in Clynderwen
Glynderi Builders is a family-run business, with a wealth of knowledge & experience in all types of general building from restorations, renovations and extensions right through to complete new build projects. We have been in business in West Wales since the mid 1990s. We specialise in all manner of property construction and can offer help and advice with planning and building regulations. No job too big or small and happy to travel within a 20 miles radius.
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Latest review:
Extensions- 10 Dec 2018
Mark and Gary built our extension, adding disabled facilities to our bungalow. They provided a friendly, reliable service and all work was completed to a high standard.

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

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

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

What are the hourly rates of extension builders in Clynderwen?

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

Find extension builders in Clynderwen with MyBuilder

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

Step 2: Compare different extension builders in Clynderwen

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

Step 3: Hire Clynderwen extension builders with confidence

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

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

What to ask a Clynderwen extension builder before hiring?

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

An extension builder in Clynderwen 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 Clynderwen 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 Clynderwen?

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 Clynderwen 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 Clynderwen 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 Clynderwen

Can an extension builder in Clynderwen help with planning permission?

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

Many Clynderwen 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 Clynderwen help with materials and finishes?

Yes, most extension builders in Clynderwen 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.