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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Ademi Contractors LTD
Rating: 5 out of 5
Extension Builder in Westbury
We are an experienced team on house extension, loft conversion, landscaping also on interior house renovation .
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Latest review:
Hard Flooring- 25 Jul 2026
They were able to arrive the afternoon of when i called about replacing a broken floorboard in the bathroom from water damage. They came and assessed the damage and were able to efficiently replace the damaged floorboard, this included working with some difficult old wood around the damaged site and accommodating for it and performing some additional work to make sure the new boards transitioned into the old boards smoothly and everything was sealed up. They cleaned up thoroughly throughout and didn't leave any mess. The job was completed and i was very happy with the result, as well as being very reasonable in cost, would recommend!
Seven Split Limited
Rating: 4.5 out of 5
Extension Builder in Westbury
We are a Bristol based building company. My team and I mostly specialise in extensions and renovating homes.
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Latest review:
Extensions- 25 Apr 2023
Overall, a shocking experience. Our project started off well, but it didn’t take long for issues to arise leading to 12 months of utter chaos. Stages were not completed by agreed dates, he started not turning up, quality of work started deteriorating, subcontractors ended up contacting us direct as they had not been paid/had payment concerns…. the list goes on!! Once we started to raise our concerns things got worse. Ross did not take any ownership for the issues and chose to continuously blame us instead and caused us considerable amounts of stress noting the size and value of the project. Ultimately, we were left in the position of having to complete our project ourselves and rectify multiple issues/non compliances highlighted by building control for which Ross was aware and chose to ignore. Note: We hired Ross under his previous company “Goulding Developments”.
Z&S groundworks
No reviews yet
Extension Builder in Westbury
Very experienced in all aspects of groundworks and civils to hard landscaping and everything in between have a gang with over 50 years experience and a handful of skilled trades people who we work with to complete any property work that is required
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C A Bater Building & Property Maintenance
Rating: 5 out of 5
Extension Builder in Westbury
we undertake most building work for a fair and competitive price
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Latest review:
I have used him few times and he is always done a good job. He did a small extension, including all ground work and drainage. He organized everything and was very reliable. Always on time and very good to work with. Will definitely use him again.
ONR Construction
Rating: 5 out of 5
Extension Builder in Westbury
We here at ONR have over 60years experience in the building trade.... We cover everything from replacing a tap or door handle to building an entirely new home. We strive to carry out the upmost quality workmanship and service that is possible whilst keeping costings fair. Our moto is “Big enough to cope, Small enough to care”
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Latest review:
Extensions- 12 Mar 2021
ONR are extremely professional, and totally focussed on attention to detail, to ensure that their clients are completely satisfied with their work. All their team are meticulous in the work they undertake, and are very tidy, whether working outside or inside. To say they are perfectionists really underplays their attitude to a job, and the regular communication with the client is always informative. Our job had a number of technical challenges, but ONR worked through each problem with total professionalism, always discussing the issues in detail, and securing our agreement to the solution, before proceeding. I would have no hesitation in recommending ONR , and would happily use them again Charles Hollinsworth
G Purnell LTD
No reviews yet
Extension Builder in Westbury
We are a family run, general building company that employs 4 people. We specialise in extensions, renovations and loft conversions and have access to a large number of sub-contractors, allowing us to undertake projects large or small. Our employees have up to 15 years each of experience working within the building trade, therefore bringing a wealth of knowledge into the company.
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SustainableSIPStructures
Rating: 5 out of 5
Extension Builder in Westbury
At Sustainable SIP Structures, we are a family-owned business that specialises in the installation of SIP (Structural Insulated Panel) building systems. Louis and Marc, the driving force behind our venture, bring a powerful combination of skills and experiences. Marc, a seasoned Carpenter with seven years of expertise, has collaborated with Louis for three years, including two dedicated to SIP construction. Together they honed their skills working for Bristol SIPs and Carpentry. Louis, with a passion for travel, spent many months traversing the United States, motivated by both personal and professional development goals. Created by two brothers, Sustainable SIP Structures is a unique venture that blends Marc’s honed skills in SIP construction with Louis’ diverse experiences. Together, we share a vision of becoming the best installation team in the South West.
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Latest review:
Hard Flooring- 26 Sep 2024
The team were punctual, tidy and completed the job to a high standard. Great communication from start to finish - really nice guys, highly recommend 👍
Great Meadow Construction
Rating: 4.8 out of 5
Extension Builder in Westbury
We are a small general building company that cater to all of our customers needs, With 26 years of working in the trade we pride ourselves on high quality workmanship and above all complete customer satisfaction. we focus on attention to detail on every job, from extensions and renovations down to minor repairs and maintenance.
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Latest review:
Extensions- 6 Jul 2022
Fantastic workman always willing to give you advise on work your having done although the job took longer than he anticipated but price never change , porch looks fabulous
C Jones builders
Rating: 5 out of 5
Extension Builder in Westbury
With extensive experience across Groundworks, Bricklaying, Joinery and more, we offer a top quality building service that cuts out the hassle of hiring multiple trades. Whether building an extension, renovating a property, or need structural repairs, we have the skills to handle the project. Core Expertise: • Groundworks: Foundations, drainage, footings, concreting, laying services. • Bricklaying: Extensions, garden walls, pointing, and structural alterations. • Joinery: Roofing, first and second fix, flooring, and bespoke woodwork. We pride ourselves on reliability, cleanliness, and delivering high standards on every job, big or small.
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Latest review:
Installed a 5 point camera system I can watch from my phone and added multiple new WiFi ports so I get signal everywhere.. Very happy with the result !
Clifton Construction (Bristol) Ltd
Rating: 5 out of 5
Extension Builder in Westbury
We're experts in high-quality extensions and love transforming spaces to go beyond what you expect. Whether you're looking to expand your home or upgrade your business, our team is all about delivering top results on every project. With over 50 years of experience, our skilled craftsmen work closely with you every step of the way. From the initial idea to the final touches, we make sure communication is clear, everything’s transparent, and the whole process is smooth and enjoyable.
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Latest review:
Clifton Construction Bristol have been a first class service from start to end. I am extremely pleased with the completed project. I am highly satisfied with the finish result. Thank you Clifton Construction Bristol.
Fifteen Contracting
No reviews yet
Extension Builder in Westbury
We are a team of highly qualified and experienced carpenters working within the Bristol and surrounding area.
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Knights construction
Rating: 4.7 out of 5
Extension Builder in Westbury
I started out when I was 20 years old working in construction working with a general builder I gained a lot of experience over the years in the building sector from digging out footings to the finish job I’m now 53 years old and for the last 10 years have my son on board with me we have a great team ie mark my electrician I’ve known him for 10 years and Sam my plumber for about 12 years so all in all a good team from start to finish
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Latest review:
Extensions- 25 Feb 2021
Darren, Ashley and the team have done an amazing job, they kept me updated with every aspect, nothing was too much trouble. They are professional and very knowledgeable turned up on time and left my property clean at the end of the day. I would definitely recommend Knights construction and I will use them again
South West Labour Ltd
No reviews yet
Extension Builder in Westbury
Southwest labour ltd are here to supply you with a reliable service helping you to have the dream home you wish for. We have very skilled and qualified workers helping us to achieve best standards for our customers as a family company we aim to please every customer
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R&R Groundworks & Civil Engineering Ltd
New on MyBuilder
Extension Builder in Westbury
R & R Groundworks & Civil Engineering Ltd is a new company built on over 24 years of experience in the groundworks and civil engineering industry. We undertake all aspects of groundworks, from driveways, patios and drainage to foundations, excavations, utilities, reinforced concrete and large-scale civil engineering projects. Although we're a newly established business, our team has earned an excellent reputation for delivering high-quality workmanship, reliable service and projects completed safely, on time and to the highest standard. We take pride in our attention to detail, honest communication and commitment to customer satisfaction, whatever the size of the job. This gives potential customers confidence that, while the company is new, the experience behind it is not.
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D and S Design and build ltd
No reviews yet
Extension Builder in Westbury
D and S design and build will be able to help you with all work including extensions, loft conversions,kitchens, bathrooms, electrical work and all bits in between
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AVR Construction Services Ltd
Rating: 5 out of 5
Extension Builder in Westbury
AVR Construction Services Ltd. provides professional demolition works, core drilling, wall cutting, and structural openings for a wide range of construction projects. Our team delivers precise, safe, and efficient solutions, from small-scale modifications to large structural works, ensuring every job meets the highest standards of quality and safety.
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Latest review:
Handyman- 8 Jul 2026
Excellent, would recommend highly. Courteous, efficient and skilled

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.