Extension Builders in Cirencester

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Some of our top rated extension builders in Cirencester

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Jacob Jefferies carpentry
Rating: 5 out of 5
Extension Builder in Cirencester
I've been a carpenter in the trade for 20 years, I cover all aspects of carpentry, everything from doors and floors, kitchens and refurbishments, to larger constructions and barn conversions, I'm self employed and work in the gloucestershire/Wiltshire area. On larger projects I can see it through from start to finish and introduce trades as and when they are needed to produce the high end finish expected.
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Latest review:
Kitchen Fitting- 24 Jul 2021
Did a great job. Left everything clean and tidy at the end of each day. Would not hesitate to recommend him
Lester Woods general builders ltd
Rating: 5 out of 5
Extension Builder in Cirencester
Ive been working in the building industry for twenty years and i can assure any customer who asks for a quote it will be competitive. The work will be done to a high standard and anyone on site will be well mannered, and work in a clean and safe environment.
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Latest review:
Conversions - General- 26 May 2010
Thanks to Lester and Chris, all work completed, very easy to work with and any questions/queries we had were always addressed. Left the place tidy each time and kept us informed of what was happening. Last few little bits tidied up and any problems have been told to get in touch with them. Out of four builders contacted on here only Lester turned up to quote and once his quote was approved he rang to organise start date, they were here every morning at 8am without fail. Really pleased with end result, thank you.
J. Saunders Builders Ltd
Rating: 5 out of 5
Extension Builder in Cirencester
We are a family based company employing 4 skilled tradesmen and 3 labourers , we use sub contractors for electrics and pluming and heating and have access to over 20 skilled sub- contract tradesmen.
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Latest review:
We re-developed a semi derelict, former railway building, turning it into a Pub Restaurant. The project was big and for us daunting , but with John and his team on board, was actually great fun. The quality of work is very good, we had an advertised opening date so we had to be on time, in fact the work was finished a couple of days early and his "boys" helped us move furniture, plant shrubs etc etc. His craftsmen and labourers were polite, helpful and really cared about the job. The whole team were great at helping us overcome unforeseen problems. You are welcome to view the work done at The Weighbridge Brewhouse, Penzance Drive. Swindon. Turn up look and maybe have a drink, make up your own mind, we think it's fab!! John's part of the build was on budget, our's wasn't !! I am very happy to recommend J. Saunders Builders, it's great to get a trades man who listens to what you want, not one who think's he knows. 9 months on, we have had very few problems/snags to be sorted.
B P Building Solutions
Rating: 5 out of 5
Extension Builder in Cirencester
B P Building Solutions provide all components and Trades to undertake any building works from ground up to complete finish to the highest standard. Are aim is to give you a service that makes your building needs happen easily and stress free taking out the need for you to find multiple trades to get the job done.
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Latest review:
Conversions - General- 3 Jun 2021
Excellent job, completed to a high standard within budget. Friendly and experienced tradesmen and very accommodating to additional work requirements. Very happy and would definitely use again. Thank you
DP.building service
Rating: 5 out of 5
Extension Builder in Cirencester
General builder
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Latest review:
Carpentry- 21 Jul 2023
Absolutely thrilled with the quality of the work. Thoroughly recommended and will be using Daniel again in the future.
Armoured Construction
No reviews yet
Extension Builder in Cirencester
Starting trading in 2010, Based in Cirencester Armoured Construction are Bricklaying specialists who can carry out all types of building and property maintenance. James the owner started as a tradesman and worked his way up to project managing commercial projects worth 50mil+ still involved in large scale projects we manage our diary to allow for small and medium size residential repair and build projects We have a number of tradesman in our contact list therefore no job is to big or small Facebook/armouredconstructionuk
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Earthroot Construction LTD
No reviews yet
Extension Builder in Cirencester
We are a construction company based in Cirencester with over 15 years of experience in new build, renovation, restoration and extension projects. Earthroot strives to build high quality structures for those who value craftsmanship and sustainability. If this sounds like you. We would love to discuss your project in more detail.
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Paragon Homes South West Limited
Rating: 5 out of 5
Extension Builder in Cirencester
We are Home Renovation & Extension specialists with many years experience. From small bathroom refits to double storey extensions we always complete all projects with our core values in mind; Quality, Reliability, Flexibility & Communication. Let us help to build your dream...
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Latest review:
Extensions- 10 Jan 2016
We are delighted with the fantastic single storey extension that Rob and his team have built for us, creating a wonderful kitchen/diner/lounge and utility. Nothing was too much trouble for them and their dedication to providing a home we wanted (not what was easier for them) was excellent. They were punctual, competent, polite, hard working, tidy and fun to have around. They provided good ideas to help us through any difficulties we had in making decisions on areas we hadn't thought about when planning the extension. The build has been finished to a high standard and we now have the living area that we have always wanted. Everybody who visits is impressed with the work and has asked for Centurion's details. Thank you Rob, Paul and Martin for our fabulous new home.
Williams Eco Builds
Rating: 5 out of 5
Extension Builder in Cirencester
Alistair Williams - Williams Eco Builds Myself and our hard working team are dedicated to providing the best service possible. We focus on timber frame construction and external finishes. Services we offer: Garden Buildings, Annexes, Extensions, outbuilding conversions and exterior cladding We take pride in delivering exactly what you require and to help guide you through the process we offer free no obligation advise, quotes and 3D design services. Our bespoke design service allows us to tailor your build to the size you require while allowing us to focus on keeping the build competitively priced. We are based in a small village called Oakridge Lynch and offer our services across the Cotswolds. Get in touch today if you feel we can be of service to you.
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Latest review:
Conversions - General- 3 Dec 2025
Alastair was fantastic. He converted our derelict garage into an awesome studio with a storage room. His attention to detail, skill and enthusiasm made this an extremely good experience for us. He is very skilled and has a lot of experience… he is also a lovely guy who is easy to have around. He gave us a fixed quote which was very competitive and this didn’t change throughout the job which was very reassuring. Highly recommend him!
J.Robinson Building Services
Rating: 5 out of 5
Extension Builder in Cirencester
We offer a wide range of services ranging from basic general maintenance to a full Design and build service, we can handle all aspects of your project from conception to completion. A high standard of work and customer care. Hard working and very reliable. All work guaranteed, References available
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Latest review:
Carpentry- 11 Sep 2025
We had an excellent experience with Joe from Custom Made Construction. He communicated clearly throughout the process, attended the job as scheduled, and completed the work to a high standard. Joe was professional, reliable, and easy to deal with. We would use his services again and are happy to recommend him to others.
Vil Stevens
Rating: 5 out of 5
Extension Builder in Cirencester
Fully qualified Bricklayer/ Stonelayer ( City & Guilds) 38 years experience in all aspects of Building. The past 20 years in general building, privately. Fixed Price Quotations. A very high standard of workmanship, with personal pride in every project, large or small.
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Latest review:
Extensions- 3 Sep 2021
i couldn't praise Vil anymore, we are over the moon with our 3x9m rear single storey extension which has completely transformed our home. Punctual, trustworthy, honest & innovative. 10/10
WD Contracting
New on MyBuilder
Extension Builder in Cirencester
Founded in 2014 WD Contracting is a construction and landscaping company dedicated to delivering superior craftsmanship in brick work, lime pointing, stone work, and landscaping. Based in Cirencester, we serve Cirencester and surrounding areas within the Cotswolds. With a commitment to excellence and craftsmanship, we cater to both residential and commercial clients, delivering top-quality masonry and restoration services. We are committed to delivering high-quality services and reliable solutions tailored to meet your needs. Our team takes pride in professionalism, attention to detail, and a strong focus on customer satisfaction. All work is carried out in full compliance with relevant laws, regulations, and industry standards, ensuring safety and transparency at every stage. Whether you’re exploring our services for the first time or returning as a valued client, we look forward to working with you and providing a service you can trust.
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Ray moulton
Rating: 5 out of 5
Extension Builder in Cirencester
Bricklayer house building.garden walls 30 yrs experience.
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Latest review:
Bricklaying- 20 Mar 2024
Ray and Craig did a great job fixing a retaining wall in our garden. Tidy, efficient and professional
Great Western Building Services Ltd
Rating: 4.8 out of 5
Extension Builder in Cirencester
Gas Safe/Federation of Master Builders/Trustmark Registered. I am a bricklayer by trade, but undertake all manner of building works. New builds, refurbs, landscaping, groundworks, home improvements, central heating, general plumbing. We have over 30 years experience on all manner of projects. Our aim is to create a company that is synonymous with quality and hard-work and to ensure communication and Customer Service is a priority.
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Latest review:
Extensions- 7 Apr 2018
Overall they did a very good job and the end result was better than expected. They were a bit untidy, so something to keep an eye on. However they were very responsive to any queries I had.
Project blue construction
Rating: 4.6 out of 5
Extension Builder in Cirencester
Hi, I’m Simon I own Project Blue Construction. I have been building for over 12 years doing extensions, new builds, refurbishments and maintenance. I aim to build your home to a very high standard. I have a great team of trades working alongside me so the client doesn’t have to find other trades.
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Latest review:
Conversions - General- 23 Feb 2026
Our job was a new walk in shower with the bathroom window made smaller. Simon completed this job in 5 days to a high standard, ie: from sorting the scaffolding a supplying some materials. We can't fault Simon's work ethic. Would use Simon again
RSJ Builders
Rating: 5 out of 5
Extension Builder in Cirencester
RSJ Builders is an established company covering all general building work, extensions, renovations, kitchens and bathrooms etc. Were happy to work with the client from the design stage through to completion of decoration. Keeping you well informed along the way.
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Latest review:
Extensions- 15 May 2017
Rob and Richard were fabulous! Always punctual, always kept me informed as to what was happening, gave me great advice when decisions needed to be made, were really organised and brought in very good sub-contractors where needed and dealt with all people involved in the build, kept the site tidy and safe at the end of each day, the work was completed to very high standards and well within the time frame agreed. I would highly recommend RSJ Builders and really love my new kitchen extension.

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

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

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

What are the hourly rates of extension builders in Cirencester?

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

Find extension builders in Cirencester with MyBuilder

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

Step 2: Compare different extension builders in Cirencester

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

Step 3: Hire Cirencester extension builders with confidence

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

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

What to ask a Cirencester extension builder before hiring?

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

An extension builder in Cirencester 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 Cirencester 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 Cirencester?

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 Cirencester 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 Cirencester 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 Cirencester

Can an extension builder in Cirencester help with planning permission?

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

Many Cirencester 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 Cirencester help with materials and finishes?

Yes, most extension builders in Cirencester 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.