Extension Builders in Barnes

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Barnes

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brs contractors ltd
Rating: 4.9 out of 5
Extension Builder in Barnes
We are very friendly and dedicated on what we do, our prices are very competitive, contact us for the quote. .
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Latest review:
Handyman- 13 Sep 2021
Reliable and on time, would definitely recommend.
LeveLine General Builders
Rating: 5 out of 5
Extension Builder in Barnes
LeveLine General Builders has grown steadily over recent years. We pride ourselves on customer service and attention to detail. We offer a full architectural and design service to ensure we deliver quality construction projects from start to finish, keeping the customer fully informed at all stages.
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Latest review:
Bricklaying- 27 Feb 2021
Andrew was prompt, efficient and produced high quality work. From the start, he made us feel comfortable we had given the job to the right person. I am extremely pleased we chose to use Andy and I will definitely recommend his services and use again should the need arise. Thank you very much for an outstanding job and pleasant experience.
RELIABLE BUILDING CONTRACTORS LTD
Rating: 5 out of 5
Extension Builder in Barnes
We have over 16 years experience on building site. Providing a professional and high quality service with warranty. New extension, Renovation, perfect kitchen, bathroom, plastering, decorating, electrical and plumbing .We can supply the material.
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Latest review:
Kitchen Fitting- 11 Oct 2018
Mohsen went above and beyond with our kitchen face lift. He did exactly as asked, to a very professional standard. Mohsen is very hard working, has high standards and was reliable. He also suggested ways to improve our kitchen, and corrected some previous poor work from other builders! We love the job and will definitely use Mohsen and his team again for future work.
Refurbishment service gold
Rating: 5 out of 5
Extension Builder in Barnes
I am an experienced professional with seven years of industry expertise. I always aim to deliver work of the highest quality, as every client is valuable to me
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Latest review:
Vladimir quoted. Turned up on time and did an amazing job - despite my not buying the correct size doors. He was professional and did an amazing job and was that rare thing- a workman you don’t mind having in your home. I have booked him to do more work after Christmas.
JM C&D Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We are over 10 years experienced and well established construction company based in Worcester Park in Surrey. We are specialised in loft conversion, house extension, new build and basement and commercial works. We do quick response to all our client's enquires and build fast as well.
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Latest review:
Extensions- 27 Jun 2022
Very very happy with Michael's work. From the day one of the meet till end of the project, he and his team been quite professional and have been working with high standards. We received range of quotes from different builders and Michael's quote was somewhere in middle with good quality of work which we have seen during our site visit for his other projects. So, decided to go with him. One really good thing you get from Michael is plenty of ideas and options. From our original drawings, he suggested some changes which were really useful. Being a lay people, During the project we were confused in some design options and Michael really assisted with 3 to 4 options and he suggests which one is the best from his view point but also been flexible if we wanted to do in specific way. He was daily coming to the site to monitor quality and progress of the work. All his team is highly skilled and experienced. The all do general building but when it comes to specific, they have specific tiles, electrician, plumber, painter etc etc who finishes the job at very high quality. They work flexible to complete the job on time and keep the area safe and tidy. In terms of managing project in budget, we had a good experience where Michael will in detail explain what is covered in agreed amount and where the extra cost will incur if there are major changes. I am taking this much time to write this review so that it can help others to see my good experience with Michael. 100% best.
Lugas
Rating: 5 out of 5
Extension Builder in Barnes
We are a growing innovative company in the building and property maintenance services. We boast a reliable, highly skilled, efficient and diverse workforce who is compliant with UK regulations with five years experience. Lugasz.gas are Gase Safe Registered and have a wide knowledge of the Plumbing and Heating trade.
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Latest review:
Now my plumber that i call for everything. A genuinely nice guy and good at his job.
Jaspal
Rating: 5 out of 5
Extension Builder in Barnes
Hi,i work very well and im very carefull about thier work.
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Latest review:
Plastering- 3 Aug 2022
Very good job and kept tidy, would recommend.
Tota Builders
Rating: 5 out of 5
Extension Builder in Barnes
Tota Builders are a polite and hard working team, Qualified tradesman, we do commercial and domestic jobs, Our goal is to leave our clients happy with high standard work, We are allso checkatrade approved,and we have been with them for 4 years,
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Latest review:
Carpentry- 23 Nov 2019
Carpenter showed-up on time both days and finished the work ahead of schedule. Nice people and dedicated carpenters. Before living, they cleaned-up all the area and left everything tidy. I would recommend Toptan Tota and would hire them again.
SRK Constructions London Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We offer a plethora of construction services and are known for excellent k-rendering, electrical fitting, plumbing, and carpet service. We have been in the industry for more than 14 years and our work varying from small to large projects speaks about our experience in the field. We believe in creating with heart and building with the mind. We are trustworthy contractors and always strive to meet the quoted budget. Clients’ satisfaction is the topmost priority of the SRK constructions.
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Latest review:
Bathroom Fitting- 12 Apr 2022
Sandeep was the first builder who I ever met who finished job before time . His team has worked very hard and did job as per our expectations . Before this I used 3 different builders and no one finished job on time . I will recommend him for any building related job .
Done By Tom Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Welcome to Done by Tom – we offer a completely bespoke design and build service for the London private sector. If you’re looking for clever, stunning and energy-efficient construction as well as interior design, we are it. At Done by Tom, we’ve come up with a unique success formula when it comes to memorable design and construction: combining the interior design, architecture and construction process into one seamless dream to deliver according to our clients vision.
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Latest review:
Fireplaces & Flues- 13 Nov 2017
i was so so happy with the service completed by done by tom. I had a really urgent last minute job and they were able to complete all the work to a really high standard and with a great price. I would trust them to do any building work in my house and am happy to have found a trusted builder for future works. Would recommend to anyone
Alpha Construction & Development Group Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Alpha Construction & Development Group Ltd offer bespoke service with a focus on the needs of our customers. We deliver one project at a time, without delays and stress-free. From small to big projects, we strive for the highest quality of work. We specialise in but are not limited to new builds, extensions, lofts conversions, structural works, roofing, plastering, rendering, painting and decorating, renovations, kitchen and bathroom fittings, pavings, brickwork, plumbing, full refurbishments.
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Latest review:
Bathroom Fitting- 25 Feb 2022
This was the best experience I have ever had with a team of builders. Aldo and Leo were polite, organised and their workmanship is of a very high standard. They replaced the bathroom in our rental flat, and it looks really smart. They also refurbished the kitchen, replacing flooring and decorated the whole flat. We have just shown it to an estate agent as we are planning to sell it and they were very impressed. Aldo was very helpful in making suggestions of small changes that would save us money and delivered the project on time and right on budget. Would recommend them and will certainly use them again.
Gjon
Rating: 4 out of 5
Extension Builder in Barnes
I have been in the construction industry for over 25years Pimlico 📍
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Latest review:
Tiling- 24 Mar 2022
Gjon and his son Julian did an amazing job tiling our kitchen floor. They were prompt in communications and completed the job within the agreed time. Left the job clean and tidy after themselves. Will probably hire them again to install a splashback later on in the project.
Tim's Painting
Rating: 4.9 out of 5
Extension Builder in Barnes
Hi! My name is Tim.I have been working in the building trade for a very long time which has helped me a lot to gain lots of experience in different trades. We are based in Sutton but work allover the place in Surrey area. Quality of our job has helped our company to expand our business.
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Latest review:
Painting & Decorating- 18 Jun 2026
Tim is a superstar. Did an excellent job with painting and decorating and good communication throughout. Flexibility with the job timing and scope. Will use again and highly recommended.
S S T Construction UK Ltd
Rating: 4.8 out of 5
Extension Builder in Barnes
We got skillfull team.I have 16 years experience.
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Latest review:
Extensions- 29 Jul 2025
Reliable, professional, and tidy throughout the entire fitting process. They transformed our old bathroom into a sleek, functional space. Very impressed with the service and would definitely use them again!
Nil building company ltd
Rating: 4.6 out of 5
Extension Builder in Barnes
Good to Know Verified professionals with years of industry experience Offers warranty on services Registered at Companies About Us At Nil Building Company Ltd, we specialize in delivering high-quality building services with a focus on 100% customer satisfaction. Over the years, our commitment to excellence and attention to detail have earned us a solid reputation, with most of our growth driven by customer recommendations. Our Services We offer a wide range of services, including: Full house refurbishment and extensions Bathroom design and installations Bathroom refurbishment Kitchen makeovers Emergency plumbing services Leak detection with advanced detectors Painting and decorating Wall and floor work Demolition work Electrical work Plumbing Carpentry New flooring installation Why Choose Us? Experienced Team: With many years in the industry, we ensure top-notch craftsmanship. Customer-Centric Vision: Our efficient and friendly service is designed to exceed your expectations. Reliable and Professional: From small fixes to large-scale projects, we handle every job with care and expertise. Contact Us For inquiries or to request a quote, get in touch with us today!
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Latest review:
Plumbing- 21 Sep 2025
The initial quotation for work was to fit a kitchen pipework for an island, however we decided to use Nil Building Company for our new home renovation which included electrical, plumbing, plastering, repair and painting work. Avash and his team have been great! They were hired for our new home renovation and did an amazing job. They were on time, tidy, provided professional advice and worked long hours to ensure the project was completed within time. The after service has been great too as they’ve returned to rectify any small nagging issues promptly, we really appreciate their hard work and dedication with the hope to use them again in future. I would highly recommend them!
Rexha Driveways and Patios
Rating: 5 out of 5
Extension Builder in Barnes
Welcome to Rexha Driveways Patio and Paths, we are a family run business with over 10 years experience. We complete various types of work from: BLOCK PAVING PATIO BRICKWORK POINTING FENCING TURFING DECKING ARTIFICIAL GRASS RESIN TILING AND MUCH MORE
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Latest review:
Fencing- 1 Apr 2024
The fencing job was done very neatly and professionally. He is reliable and trustworthy he has promised that he will start the job next day He came on time and started the job and ordered the material. I don’t have any hesitation to recommend him for the next coming jobs.

4.1

Top rated Extension Builders

Our Extension Builders in Barnes, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Barnes?

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

Find extension builders in Barnes with MyBuilder

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

Step 2: Compare different extension builders in Barnes

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

Step 3: Hire Barnes extension builders with confidence

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

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

What to ask a Barnes extension builder before hiring?

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

An extension builder in Barnes 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 Barnes 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 Barnes?

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 Barnes 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 Barnes 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 Barnes

Can an extension builder in Barnes help with planning permission?

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

Many Barnes 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 Barnes help with materials and finishes?

Yes, most extension builders in Barnes 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.