Extension Builders in Swansea

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

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Some of our top rated extension builders in Swansea

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10358580
Rating: 4.7 out of 5
Extension Builder in Swansea
R&H Building contractors is South Wales based and undertakes general building and landscaping work.
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Latest review:
Bricklaying- 25 Jul 2026
Kieran was great. On time , great job completed and really well priced. We will be using him again on our next property.
Mitchell property management
Rating: 4.7 out of 5
Extension Builder in Swansea
Painting and decorating Plastering Garden maintenance
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Latest review:
Painting & Decorating- 6 Apr 2024
Clean workers came on time did a first class job would hire them again friendly and nice guys the price was good very satisfied. As an old age pensioner on my own was comfortable with them in my home .
JA & HJ James
No reviews yet
Extension Builder in Swansea
Hello. I have 24 years experience as a carpenter and joinery. Scale of works I carry out is really anything from a days work to full builds. I have a lot of experience in restorative building works, structural work and traditional cut roofs.
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Williams Plastering
No reviews yet
Extension Builder in Swansea
We are an established company with over 25 years experience in the plastering, rendering and damp solutions industry. We specialise is all aspects of restoration and refurbishing old properties. Experts in Plastering and rendering trade from traditional lime render to modern silicone and colour render systems. We pride ourselves on quality workmanship, great relations with our clients and a huge commitment to guiding all our customers through the process of the required works. All our jobs come with a 10 year warranty. Check us out on instagram geraint_plasterer
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Orange Grove Construction
Rating: 5 out of 5
Extension Builder in Swansea
Started own business in a partnership deal in 2008 with long time friend who had been working as a soul trader for 6 years. We are now trading under the name of Orange Grove Construction and in this present climate have been very busy with continuous work ranging from extensions to renovating/loft conversions, kitchen fitting, bathroom fitting, wall and floor tiling, plastering and rendering, U.P.V.C, basement conversions, conservotories, fencing, garden walls, patio laying, fascia and soffits and guttering. When we set out, we only advertised for one month to pick up work, the rest of the work came in from word of mouth.
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Latest review:
Conversions - General- 30 May 2013
Dave Phillips was brilliant. Friendly and accommodating, nothing was too much trouble. He converted our garage into living space, always solving the small problems builders face as they make progress. He has a really good network of reliable specialists for electrical, plastering...etc, all of whom he has known for decades. A perfect example of excellent small business. I have already recommended him to our friends and family, as a result he has lots of new business keeping him busy. Our friend's house needed full refurb, some very serious work, and Dave was available on the phone 24/7 when not at their house. As soon as we can afford to do more work on the house, Dave will be our first choice builder, in fact, we will wait until he is available to do any future work on our property.
Hudsonbuilders
No reviews yet
Extension Builder in Swansea
Based in Carmarthenshire 3 generations in the trade Level 3 qualified carpenter All types of building work undertaken Complete house reroofs Flat roofs All carpentry work 1st and 2nd fix Patios Renovations New builds Extensions Photos of our previous projects available
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CM Renovations Ltd
Rating: 5 out of 5
Extension Builder in Swansea
I have 40 years experience in the building industry. I always provide a professional and efficient service to all of my customers whilst delivering the highest quality product for the lowest possible price. All work is carried out to the highest standard.
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Latest review:
Bathroom Fitting- 16 Apr 2018
Chris and his team have done a terrific job in our flat. We have had a new kitchen and bathroom, new flooring throughout, a fully fitted out walk-in closet, and the flat redecorated throughout. We were overseas most of the time and we felt completely comfortable leaving Chris to get on with the job without us being there. He was completely reliable and kept us up to date all the time on the progress, sending us pictures as things were completed. We are very happy with the end result.
Home fix builders ltd
Rating: 4.8 out of 5
Extension Builder in Swansea
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.
Mjp masonry
Rating: 4 out of 5
Extension Builder in Swansea
Hi we at mjp masonry are a small run firm who specialise in stonework and most other building aspects including patios,extensions,garden renovations,garden walls,garages,repointing work lime and cement we like to keep our customers updated about everything and keep them in the loop as building progresses and involved in all decisions also keep work to the highest possible standard look forward to hearing from you Mike
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Latest review:
Stonemasonry- 22 Mar 2024
Fast and efficient booking me in and completed the work to a high standard. Fabulous job! Would highly recommend for any repointing work needed🌟
JB Brickwork and Construction
No reviews yet
Extension Builder in Swansea
bricklayer by trade who takes pride in work , ensuring attention to detail on every project and leave area clean and tidy . Also can offer repointing services , Lay slabs , Coping stones and some ground works . Also fencing .
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L. N. W. Brickwork Ltd
No reviews yet
Extension Builder in Swansea
Hi . Me and my team have worked various new build sites , extensions, garages , stone houses walls all to a very high standard and to regulations . Very reliable and responsive please don’t hesitate to contact
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JJR PROPERTY SERVICES LTD
New on MyBuilder
Extension Builder in Swansea
We are a multi‑trade property services company providing reliable, professional workmanship with a focus on clear communication and consistent delivery. Our core services include: Carpentry and joinery Fire door installation, upgrades, and compliance work Extensions General property maintenance and repairs Small building works and refurbishments Roofing repairs and replacements Planned and reactive works for managed properties We are fully VAT‑registered and hold Constructionline Gold accreditation, demonstrating our commitment to quality, safety, and verified compliance across all areas of our work. We also hold BM TRADA Fire Door Installation Certification, ensuring all fire door works meet strict third‑party standards for compliance, installation quality, and safety. We pride ourselves on being dependable, easy to work with, and responsive when urgent works arise. Our quotations are transparent, and we maintain a tidy, organised approach on every job.
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Builqo interiors ltd
No reviews yet
Extension Builder in Swansea
A Company Dedicated to Top Quality Workmanship , Reliable & Professional Services, Specialising in All aspects of Residential and Commercial Drylining
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J Jones Carpentery
No reviews yet
Extension Builder in Swansea
Fully qualified carpenter All aspects of carpentery undertaken.
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PJ Carpentry services
No reviews yet
Extension Builder in Swansea
I am fully qualified carpenter with nearly 20 years of experience. I cover all aspects of carpentry and building works.
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Daveydaw builders
No reviews yet
Extension Builder in Swansea
My name is davey daw I personal have 27 years experience in the construction bussiness with 15 years running my own company I am a fully qualified bricklayer In my experience keeping clients updated with the process and keeping regular times arriving on site and keeping site clean is a must
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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.