Extension Builders in Westbury

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

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Some of our top rated extension builders in Westbury

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JMR Building
Sponsored
Rating: 5 out of 5
Extension Builder in Westbury
My self (Mark) and my son Joe have been in the building and glazing industry for over 20 plus years. From Conservatories and windows now more Bifolds and Roof lanterns. Changing conservatory roofs to light weight tiled warm roofs to give you a greater heat saving and comfort level. Making older conservatories into full walled extensions. Or a complete single storey new extension from start to finish. We offer a full planning and drawings service. Fascia, soffits and guttering is offered along with full Garage Conversions. All Building Control applications and managing is standard. I f want a flat roof we offer Firestone rubber roofs. Then flat glass panels or Lanterns. In all colours. Bifolding doors in Aluminium from 2 panes to 8 panes wide again in White, Anthracite Grey or Black as standard or dual colour with White inside and any of the 3 colours outside. New standard glazing windows and doors in UPVC or Aluminium. Along with Composite front doors in a wide range of designs and colours. Extensions can be a traditional build ( wet build bricks and blocks) or a Modular Build we tend to build more of especially in high impact drainage areas and offers more speed of build. This includes walls and roof pods for warmth and speed.
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Latest review:
Extensions- 24 Feb 2026
Can’t be more pleased with Mark and his Son, job was completed to a very high standard.
Vision Build
Rating: 5 out of 5
Extension Builder in Westbury
Building and landscaping
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Latest review:
Very pleased with the extension carried out. Fair pricing on the quotation, especially in todays climate. Great guys who made the whole process, which seemed daunting at first, actually become very fuss free. We love our new space and cant thank them enough for all their hard work and the wonderful addition to our house. I would recommend Vision Build to everyone.
Avonvale Builders
Rating: 5 out of 5
Extension Builder in Westbury
Avonvale Builders, for all your building requirements, High quality workmanship at affordable prices. delighted to visit you. Rob
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Latest review:
Extensions- 1 Apr 2017
Rob and the boys did a fantastic job with our extension. We had an existing galley kitchen, and we wanted a porch/extension at the end to complete it. Rob was very flexible with changes and explained everything in simple terms to a building novice. It took around two weeks with some less than ideal weather conditions, yet this didn't massively affect progress. I also had some other work going on with the house, some of which impacted Rob, however nothing was too much of an issue. Very trustworthy, punctual, polite and does a fantastic job - couldn't ask for more really. I'll be using you again, Rob, thank you very much.
MJC Construction
Rating: 4.9 out of 5
Extension Builder in Westbury
I have been in the construction industry for over 10 years. This year I have moved south and am now based in Westbury, Wiltshire. I am looking to build my portfolio and reputation in this region. My last project before moving was a very large multi million pound refurbishment for which I was site manager. My scope of experience is vast, ranging from small patio and fencing jobs to domestic extensions and new builds.
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Latest review:
Extensions- 31 Dec 2018
Mike and his team have done a really good job building my extension, I found all the team very easy to get on with, if I had any questions or changes they were happy to work with me. Mike informed me of any extra costs due to changes before going ahead. I would highly recommend MJC Construction.
AD Carpentry & Developments Ltd
Rating: 5 out of 5
Extension Builder in Westbury
All aspects of Carpentry, building and renovations. 18 years experience All work completed to the highest standard with a care for fine detail.
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Latest review:
Loft Conversion- 1 Nov 2024
Andy and his team have been faultless on our project. Communication has been exceptional, keeping us updated throughout. As with any project, timelines can move around, but Andy ensured we were always fully up to speed of what was coming next, with a a view of what would be coming down the line. We couldn't be more happy with the work that has been completed. Andy has a great attention to detail and a very high standard of workmanship along with an exemplary work ethic. Finding a good honest builder can often be a challenge, but i have no hesitation in recommending Andy and his team. A pleasure to be a client of his.
LWP Property Services
Rating: 5 out of 5
Extension Builder in Westbury
I’m Lewis from LWP Property Services, we undertake anything property, from plastering to new kitchen and bathroom installations to guttering repairs! We have a wealth on knowledge with 15 years experience in the building industry feel free to get in touch and see how we can help you today!
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Latest review:
Handyman- 4 Jan 2023
Excellent work with superb clean finish on the walls. Will definitely use again.
Wills brickwork
Rating: 5 out of 5
Extension Builder in Westbury
I’m a bricklayer with 15 years experience who runs jobs very efficiently with many returning and recommended customers, I offer a very professional and friendly service with precision and quality.
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Latest review:
Bricklaying- 23 Jul 2024
Wills Brickwork, were very professional and their work was excellent. I would certainly hire them again and would highly recommend them. They were very pleasant. Very clean and tidy. Prue
Darcey Developments
Rating: 4.3 out of 5
Extension Builder in Westbury
We provide renovations and refurbishment works to domestic and commercial properties internally and externally. We have undertaking conversion of outbuildings to living accommodation, re-roofs, kitchen and bathroom make overs and commercial relocations.
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Latest review:
Extensions- 30 Jul 2023
I can't speak highly enough of Jim and the team, they worked tirelessly to deliver an excellent job on time and budget. Communication was easy which makes the whole process of a significant project like ours all the more enjoyable. I have already asked to work with Jim on the next project! Thanks again for our lovely new home!
Dig-it and Build- it
Rating: 5 out of 5
Extension Builder in Westbury
Dig-it groundworks covers all aspects of groundwork's including retaining embankment difficult footings installing sceptic tanks,soakaways,land drainage,driveways,levelling sites and trenching,pipe laying fencing landscaping,tree clearing Domestic,commercial and agricultural work undertaken
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Latest review:
Demolition- 8 Feb 2020
Excellent Kim and his team were great. They deserve the 100% rating. Fair price, health and safety aware, didn't try and add extras, job was started on time and carried out quickly. Understood the property was tenanted and put tenant at ease.
Peter Meagor
Rating: 5 out of 5
Extension Builder in Westbury
I have 25 years experience in construction, landscaping, demolition and fencing. I have my own mini digger with various attachments for breaking up concrete, crushing concrete , drilling holes, knocking in fence posts and a large range of buckets to tackle any job.
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Latest review:
Demolition- 9 Jun 2025
Levelled a garden and demolished a concrete driveway totalling around 150 square metres. Great to work with, high quality job and a good price! He left the site tidy and ready for finishing as agreed. Thanks Pete
Hemp Construction
Rating: 4.9 out of 5
Extension Builder in Westbury
eco-friendly recycling/construction company based in Standerwick near Frome, We do everything from the ground up, new builds, extensions , loft conversions and ground work. We are also registered with the council so we can do DropCurb/Highway work ect Sustainable insulation , thermal hemp products giving you better rating on your EPC report (energy saving) and good for the environment.
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Latest review:
Driveways (Paved & Loose)- 16 Jan 2026
Absolutely marvellous, couldn't be happier. Ryn is a great, positive character and team do a fantastic job no matter what the weather and make a good job perfect. We couldn't recommend them highly enough, worth more than 5 stars.
Sean Smith Carpentry & Maintenance
Rating: 4.8 out of 5
Extension Builder in Westbury
All aspects of carpentry also renovation and general property maintenance.
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Latest review:
Carpentry- 10 Feb 2026
Brilliant job fixing a very damaged internal door, thank you!
Paul Turner
Rating: 5 out of 5
Extension Builder in Westbury
Welcome to PT Carpentry & Building Bassed in Edington, we cover Wiltshire and all surrounding areas. I am a small family run business, we care about delivering a personalised service that puts your needs first. Weather you are looking for building services to your house or home renovations to truly transform your beautiful home. We as a business have completed many projects in and around Wiltshire and very much renowned for our exceptional workmanship for over 16 years. We have the skills necessary to provide outstanding service to a fair price for all your needs. Contact me today to find out more about our services or to receive a competitively-no obligation quote.
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Latest review:
Carpentry- 19 Jan 2023
Paul helped us out for one day. He worked a full day & started work immediately and professionally to a good standard. He’s a good polite hard working carpenter who left the room clean & tidy. We would employ him again.
M.T.S Builders
Rating: 5 out of 5
Extension Builder in Westbury
MTS Builders Limited is an established and competitive building and construction company based in Wiltshire. Our portfolio includes the construction of extensions and alterations for domestic premises for various clients and architects throughout Wiltshire and Somerset. Past and present projects include: •Property Extensions •Loft Conversions •Garage Conversions & Adaptions •Complete New Roofing & Repairs •Property Alterations •En-Suite Rooms
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Latest review:
Extensions- 15 May 2020
I cannot praise martin and his whole team enough. What a pleasure to work with from start to finish. Excellent communication and service from initial quote to programming dates onto start on site, through to completion. Martin and his whole team are first class...if you are looking for a fantastic builder look no further than martin at MTS...
JMR Building
Rating: 5 out of 5
Extension Builder in Westbury
My self (Mark) and my son Joe have been in the building and glazing industry for over 20 plus years. From Conservatories and windows now more Bifolds and Roof lanterns. Changing conservatory roofs to light weight tiled warm roofs to give you a greater heat saving and comfort level. Making older conservatories into full walled extensions. Or a complete single storey new extension from start to finish. We offer a full planning and drawings service. Fascia, soffits and guttering is offered along with full Garage Conversions. All Building Control applications and managing is standard. I f want a flat roof we offer Firestone rubber roofs. Then flat glass panels or Lanterns. In all colours. Bifolding doors in Aluminium from 2 panes to 8 panes wide again in White, Anthracite Grey or Black as standard or dual colour with White inside and any of the 3 colours outside. New standard glazing windows and doors in UPVC or Aluminium. Along with Composite front doors in a wide range of designs and colours. Extensions can be a traditional build ( wet build bricks and blocks) or a Modular Build we tend to build more of especially in high impact drainage areas and offers more speed of build. This includes walls and roof pods for warmth and speed.
Get in touch
Latest review:
Extensions- 24 Feb 2026
Can’t be more pleased with Mark and his Son, job was completed to a very high standard.
Creo Developments CS Ltd
Rating: 5 out of 5
Extension Builder in Westbury
I am a friendly and trustworthy tradesman, I have over 15 years experience as a qualified carpenter and have been lucky enough to gain vast experience in nearly all aspects of carpentry/building. I have always received great feedback from customers and take great pride from customer satisfaction.
Get in touch
Latest review:
Kitchen Fitting- 3 Jul 2015
In one word "Amazing"!!!! I have been delaying leaving my review as i didn't want Andrew snapped up by anyone else. From the start of the project Andrew has been nothing but professional, with exceptional time keeping and the quality of his work is outstanding. He project managed a complete transformation of a kitchen knock through into the dining room and rebuild, he called in the plumber, builder, tiler and electrician all at the right times in the project and his team are also brilliant. Andrew is currently working upstairs preparing an ensuite now and i have absolutely no complaints at all, in fact my wife wants to adopt him!!! He is great for expectation management and offers his sound advice on the hundreds of stupid questions and ideas we had. This was my first project and really didn't know what to expect as i had seen all the horror stories on tv, but nothing but gratitude for this superb carpenter/project manager/painter/basically every thing. I have no hesitation in recommending Andrew and his team for any project, no matter how big or small!!! Thank you very much.
The Creative Space Program
Rating: 5 out of 5
Extension Builder in Westbury
At The Creative Space Program we appreciate how our environment affects us. We highly value transforming your spaces into aesthetically pleasing, areas that serve you. With a tidy work space and well planned methods we aim for the highest standards in building all-round from design to function to low maintenance and economical cost. Yours Faithfully Ed Smith
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Latest review:
Carpentry- 2 Feb 2025
Ed fitted 5 fire doors across 3 stories including a loft room. His work was faultless, very good from quotation to invoice. Clean, punctual and thorough. Highly recommend and would use again!

Top rated Extension Builders

Our Extension Builders in Westbury, 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 Westbury?

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

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

What are the hourly rates of extension builders in Westbury?

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

Find extension builders in Westbury with MyBuilder

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

Step 2: Compare different extension builders in Westbury

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

Step 3: Hire Westbury extension builders with confidence

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

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

What to ask a Westbury extension builder before hiring?

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

An extension builder in Westbury 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 Westbury 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 Westbury?

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 Westbury 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 Westbury 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 Westbury

Can an extension builder in Westbury help with planning permission?

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

Many Westbury 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 Westbury help with materials and finishes?

Yes, most extension builders in Westbury 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.