Extension builders in Wiltshire

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

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Wiltshire

247 Results

Sort by:

AT BUILDING SERVICES
No reviews yet
Extension Builder in Wiltshire
We offer a range of services including tacking ,dot & dabbing all aspects of installation plastering
Get in touch
Araya
No reviews yet
Extension Builder in Wiltshire
I am a qualified bricklayer, I undertake general builds anything from repair work, rejointing to garden walls to complete extensions.
Get in touch
Complete Construction (SW) Ltd
Rating: 5 out of 5
Extension Builder in Wiltshire
Complete construction (SW) ltd We are based in Bristol south west And have 30 years of building experience from as little as a porch too extensions, new builds and loft conversions no job to big or small don’t hesitate to contact us and find out more
Get in touch
Latest review:
Extensions- 2 Oct 2023
I very highly recommend these guys ! We had gone to another builder for our house extension, who ended up running away scamming us and ruining our work . Elliot, Liam and Co mended this job to perfection leaving us as very satisfied . . They had exceeded our expectations and was a very enjoyable experience having them with us doing our job to perfection . They always kept us informed of the work, managing customer information .! I highly recommend complete constructions .
JMC Construction Limited
No reviews yet
Extension Builder in Wiltshire
Jmc construction are a family run construction company with over 50 yrs experience in all aspects of the trade . Working with all materials from natural stone through to new brick and block . All are works are carried out at the highest of standard , and all fully insured.
Get in touch
J.B Services
No reviews yet
Extension Builder in Wiltshire
J.B Services provides a high quality standard of work at a great price! I am a experienced carpenter/builder and over the years I have also picked up many other skills along the way. So if you need any of the following work done by someone professional and reliable then get in touch. We cover: •carpentry work •general maintenance •refurbishment •landscaping/decking/fencing •roofing (new&repairs) •patios And much more!
Get in touch
A4 Building & Renovation limited
No reviews yet
Extension Builder in Wiltshire
We have been trading since 2007. We undertake all kinds of building work from small garden walls to new builds. Our main trade is brickwork but we use various subcontractors for other work ( plasterers, electricians, carpenters etc.) who we have worked with for a number of years & know they will complete the work to a good standard.
Get in touch
Bennett’s building construction
No reviews yet
Extension Builder in Wiltshire
My name is sam iv been in the building industry coming up to 20 years . When i was sarting out i was lucky enough-to have worked with some of the best traditional tradesmen out there . which allowed me to gain the skills and work ethicresulting in me having a high standard of pride in my work . All the services I offer are to a high standard So if there’s a job you want doing big or small Please get in touch and even if it’s a job I cannot do . I will be happy to put you in touch with a trusted tradesmen, which can do it for you . So please get in touch drop me a messageon
Get in touch
3B HOMES BUILDING CO LTD
Rating: 5 out of 5
Extension Builder in Wiltshire
3B Homes Building Co is a family operated building company with 35 years+ experience of providing professional residential and commercial building services. Specialists in the renovation, repair, and extension of period and listed buildings and much more. With our trusted team of partner architects, engineers, consultants, and designers we aim to deliver first class customer service and high-quality end product on every project.
Get in touch
Latest review:
Further to approval of a very comprehensive and competitive quote, we engaged with 3B Homes Building Co. to carry out the refurbishment of our office and residential premises. This involved external and internal general building works, plastering, carpentry, electrics, plumbing and decorating. Throughout the process George Barber organised and coordinated the work, his team were very professional, their work was to a very high standard and they kept to the 6 week schedule they had set out at the beginning of the project. I would certainly look to 3B Homes Building Co. for any future development projects.
GG Joinery & Carpentry
Rating: 5 out of 5
Extension Builder in Wiltshire
GG Joinery & Design Ltd provides high-quality joinery, carpentry and bespoke furniture services across Dorset, Wiltshire and surrounding areas. I’m a fully qualified joiner with many years of experience, specialising in fitted wardrobes, media walls, kitchens, alcove units, bespoke cabinetry and general carpentry. Alongside my joinery work, I am also undertaking professional electrical training and have completed a number of recognised electrical qualifications, including the 18th Edition Wiring Regulations, Building Regulations, Portable Appliance Testing and Inspection & Testing. This additional electrical knowledge is particularly useful on projects involving lighting, sockets, media walls, kitchens and other integrated electrical features. I take great pride in the standard of my work and attention to detail, from the initial design through to the final installation. Whether it’s a small carpentry job or a complete bespoke project, I aim to provide clear pricing, reliable communication and a professional, tidy service throughout. If you’re looking for quality workmanship and a personalised approach, I’d be happy to discuss your project.
Get in touch
Latest review:
Carpentry- 1 May 2019
Gareth did a great job, he was happy to do a number of small jobs, provided sensible quotes and good designs so I could see what to expect. Kept me fully informed throughout the process, arrived when he said he would and left place clean and tidy. I would not hesitate to use Gareth again.
Bristol Home Improvements Ltd
Rating: 4.9 out of 5
Extension Builder in Wiltshire
Thank you for looking We are a family run business, with over 35 years experience within the trade of building works and glazier Extensions, garage conversions Patios and much more 10 year warranties on all glass and products Insurance back guaranteed for piece of mind. Certass Registered to be able to sign your windows/doors off, we pride the company on 100 percent customer satisfaction, we also do not have salesmen or premises, so the overheads are low So we can give you a very competitive price
Get in touch
Latest review:
Conservatories- 14 Sep 2026
Had Bristol home improvements round to replace an old lean to conservatory. Jason came round to go through our options and then sent over a quote. We had a few more questions so he offered to come back to go through it with us again. Had excellent communication throughout the whole process. The work was completed in a week and the 2 men who done it were very polite and kept us informed of what was going on the whole time. They tidied everything up behind them and left no mess. The new conservatory looks lovely and has been completed to a very high standard. I would happily use them again in the future.
SH Services
No reviews yet
Extension Builder in Wiltshire
As the owner of SH Services I have 25 years of experience in the refurbishment industry. I believe in a flexible approach to any refurbishment as projects can often change throughout the process.
Get in touch
Saul and Sons Developments Ltd
No reviews yet
Extension Builder in Wiltshire
We are a family run construction company set in the heart of Salisbury. We have a design and build team from start to finish covering all aspects and trades.
Get in touch
South West Stonework and Construction
Rating: 5 out of 5
Extension Builder in Wiltshire
South West Stonework and Construction are North Dorset based undertaking projects all around the South West and beyond.
Get in touch
Latest review:
Bricklaying- 11 Aug 2022
Had a quick response from Curtis, did a great job, very professional and knowledgable.
Peter Lynch
No reviews yet
Extension Builder in Wiltshire
Bricklayer Fixer Mason with 40 years of experience. Worked on all sorts of projects over the years. Specialise in Renovations, Hardscaping, Extensions, Rubble stone, and dry stone walls. Worked for many companies over my 40 years of experience. These include; Ken Biggs, Mowlems, Titan Masonry, Pack Masonry, and Stokes Masonry. Worked jobs such as the Themae Spa Bath, Ashton Court, Wells Cathedral. Give me a ring on my number for enquires and work. Many thanks, Peter Lynch.
Get in touch
Samsons Carpentry & Construction
Rating: 5 out of 5
Extension Builder in Wiltshire
We cover all carpentry and construction works to a great standard and always happy to help. Get in touch to receive a free quote.
Get in touch
Latest review:
Carpentry- 17 Nov 2023
I can highly recommend Sam. He fitted some skirting boards for me, which were done to a high standard, and he left everything clean and tidy.
JW Brickwork
Rating: 4.4 out of 5
Extension Builder in Wiltshire
Small family run building firm with a high standard of work. We have over 20 years experience and will undertake work from garden walls to large extensions and new builds.
Get in touch
Latest review:
Extensions- 6 May 2019
Very nice guys but very unreliable and walked off our job with no explanation and were replaced by a team who indicated that a lot of the work that had been done was of poor quality, would not recommend.

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

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

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

What are the hourly rates of extension builders in Wiltshire?

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

Find extension builders in Wiltshire with MyBuilder

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

Step 2: Compare different extension builders in Wiltshire

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

Step 3: Hire Wiltshire extension builders with confidence

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

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

What to ask a Wiltshire extension builder before hiring?

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

An extension builder in Wiltshire 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 Wiltshire 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 Wiltshire?

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 Wiltshire 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 Wiltshire 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 Wiltshire

Can an extension builder in Wiltshire help with planning permission?

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

Many Wiltshire 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 Wiltshire help with materials and finishes?

Yes, most extension builders in Wiltshire 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.