Extension Builders in Swansea

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (3 reviews)

Easily find verified Swansea Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Swansea.

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Some of our top rated extension builders in Swansea

230 Results

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LJH home improvements
No reviews yet
Extension Builder in Swansea
I’m Liam. I’m a reliable and detail-focused professional with a strong commitment to quality workmanship and customer satisfaction. I take pride in being punctual, tidy, and honest, and I always aim to deliver work to a high standard - no shortcuts. I believe clear communication is just as important as the job itself, so I’ll keep you informed from start to finish and make sure everything is done exactly as agreed. Whether it’s a small job or a larger project, you can expect a friendly, professional service and results you can trust. I look forward to working with you.
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PJ Davies & Son
Rating: 5 out of 5
Extension Builder in Swansea
I have over 30 years of experience in the building industry. All work is undertaken personally and we never take on more than one project at a time. So we are able to give your project our full attention.public liability insured 2 million pounds 👍🏻
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Latest review:
Plastering- 14 Aug 2018
Excellent plastering job done.
Gareth Tomlinson
No reviews yet
Extension Builder in Swansea
All carpentry work undertaken kitchen fitting pvc fitting decking plumbing and general building
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Archstone Masonry Limited
New on MyBuilder
Extension Builder in Swansea
Here at Archstone Masonry we pride ourselves in 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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Rjm home improvements
Rating: 5 out of 5
Extension Builder in Swansea
I’m a carpentry and building company focused on quality craftsmanship, honest work, and attention to detail. I specialize in custom builds, repairs, and renovations, delivering reliable results you can trust. Every job is done with pride and built to last.
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Latest review:
Handyman- 16 Aug 2026
Riley has delivered excellent results on a particularly short timeframe and is a pleasure to work with. He widened my concrete garage entrance, built a small concrete ramp and a solid wood exterior door within a single day's hard work. I was very impressed and I will be in contact again as soon as there is more work available. Couldn't recommend him enough.
L Morgan
No reviews yet
Extension Builder in Swansea
All aspects of carpentry an building
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CJBrickwork
Rating: 4 out of 5
Extension Builder in Swansea
As a skilled and experienced bricklayer and builder, I take pride in delivering high-quality workmanship on every project I undertake. My role includes all aspects of bricklaying, from setting out and laying foundations to building walls, blockwork, and detailed brickwork finishes, always ensuring everything is structurally sound and built to the highest standards. I also work confidently with other trades on-site, contributing to smooth project progress and meeting deadlines efficiently. With a strong work ethic and a proactive mindset, I stay motivated on every job, taking ownership of my work and always looking for ways to improve and exceed expectations. I’m reliable, hardworking, and committed to delivering results that stand the test of time.
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Latest review:
Bricklaying- 6 Jun 2026
Excellent work from Curtis. Great communication, did a fab job and left everything tidy at the end. Would definitely hire again for any future work that needs doing.
L Davies carpentry and building services
No reviews yet
Extension Builder in Swansea
Carpentry and building services with over 18 years of experience undertake all types of building and carpentry services. Kitchen, bathroom and bedroom installation full loft conversion full new build and extensions, roofing, decking and much more
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CLM Windows and Doors
Rating: 5 out of 5
Extension Builder in Swansea
Hello, CLM Windows and doors is a family run buissiness. CLM will work together with customers to design and experience the new look of your homes and work places. We aim to satisfy every customer and provide a high standards of work. CLM employees are friendly and polite.
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Latest review:
Extensions- 19 Nov 2020
Excellent from start to finish. Nothing was too much trouble and came in with some great ideas around design. Highly recommend. First class job
Silkwood construction
No reviews yet
Extension Builder in Swansea
Hi I've been in the building business for about 35 years I have vast experience and knowledge about the building industry we done a lot of exciting work including extensions kichen fitting bathrooms and painting and decorating from small rooms to 2 story extensions
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A design in mind carpentry and construction
No reviews yet
Extension Builder in Swansea
All aspects of carpentry and construction
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BLP groundworks
Rating: 5 out of 5
Extension Builder in Swansea
BLP groundworks our type off work consumes off new build houses , extensions , foundations , conservatory bases , mini digger hire , retaining walls , drainage , driveways , patio & steps , garden maintenance . We have 15years experience in the construction game and always looking for new challenges. There is no job to big or small for BLP groundworks
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Latest review:
Groundwork & Foundations- 14 Oct 2019
Good job well done . Trusty bunch of lads worked tirelessly in extremely bad weather.
Angelo Colarusso
No reviews yet
Extension Builder in Swansea
I am an extremly fussy and meticulous builder with over 40 years in the building trade having built houses satisfied the local authorities when Grant works needed competent and proficient builders with a wide and varied field of experience at present I am completing a garage conversion and extention which has more than met my customers needs. I wish to progress my company with your help this why I am applying to your your goodselves.
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Jason Evans
New on MyBuilder
Extension Builder in Swansea
Certainly! Here’s a potential introduction you can use for Hello! My name is JasonEvans, and I’m excited to connect with you. I bring over 30 years of experience as a skilled bricklayer, a journey that began after serving six years in the armed forces. My military background has instilled in me great discipline and a commitment to excellence, making me a reliable professional who values timekeeping and precision. Throughout my career, I have worked on a variety of projects, from residential builds to larger commercial endeavors. My expertise lies in delivering high-quality craftsmanship while adhering to project timelines. I take great pride in my work and strive to ensure that my clients are not only satisfied but truly happy with the results. I believe in open communication and collaboration with my clients to understand their vision and bring it to life. If you’re looking for a dedicated bricklayer who will treat your project with care and respect, I am here to help. Let's create something exceptional together! Thank you for considering my services, and I look forward to the opportunity of working with you. Best regards, Jason Evans
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Signature carpentry limited
No reviews yet
Extension Builder in Swansea
With over 20 years in construction from commercial to residential experience We have a full team of qualified professionals tradesmen With a very high standard and professional attitude that we pride ourselves on Our main achievement is making the experience of your project as easy and stress free as possible and completed to a very high standard
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DJ carpentry and construction
Rating: 5 out of 5
Extension Builder in Swansea
Builder and carpenter
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Latest review:
Conversions - General- 8 Sep 2022
Job completed on time and to a good standard

Top rated Extension Builders

Our Extension Builders in Swansea, are rated 5 out of 5 based on 3 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Swansea?

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

Find extension builders in Swansea with MyBuilder

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

Step 2: Compare different extension builders in Swansea

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

Step 3: Hire Swansea extension builders with confidence

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

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

What to ask a Swansea extension builder before hiring?

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

An extension builder in Swansea 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 Swansea 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 Swansea?

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 Swansea 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 Swansea 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 Swansea

Can an extension builder in Swansea help with planning permission?

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

Many Swansea 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 Swansea help with materials and finishes?

Yes, most extension builders in Swansea 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.