Extension Builders in Barnes

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (17 reviews)

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Some of our top rated extension builders in Barnes

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ALWAYS THERE LIMITED
No reviews yet
Extension Builder in Barnes
We've been delivering quality work in West London since 2015. Always There provides Handyman, Maintenance, Painting and decorating, and comprehensive building and renovation services. Our experienced team specializes in extensions, full home renovations, loft conversions, and property repairs, delivering high-quality craftsmanship throughout every project. We focus on efficient project management, transparent communication, and meticulous attention to detail. Our commitment ensures a smooth process and results that meet your exact specifications and high standards. We are dedicated to professional execution and client satisfaction, ensuring we are "Always There" for our customers. Why choose Always There? Established: Proven expertise since 2015. Skilled: High-quality, precise construction. Reliable: Dependable project delivery. Dedicated: Focused on client satisfaction. Contact us for a free estimate.
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Provision construction Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Provision Construction Ltd is a family-run company that has built its reputation on the basis of quality and value of work. We pride ourselves on our high standards of work and excellent results, which have resulted in a high volume of recommendations from our clients. Our team has extensive experience in undertaking projects ranging from minor repairs and maintenance to major refurbishment ,Extensions ,Loft conversion ,New build and construction works.
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Latest review:
Extensions- 12 May 2026
Maninder recently built an outhouse for us and we were extremely impressed with both the quality of work and his honesty throughout the project. Everything was completed exactly as promised, with no hidden costs or unexpected extras. The workmanship was excellent, and even other tradespeople have commented on the high standard of the build. What also stood out was that Maninder always recommended the right approach, even when it meant extra work for his team. Highly recommended.
AGB CONSTRUCTION, LTD
Rating: 5 out of 5
Extension Builder in Barnes
AGB CONSTRUCTION LTD Is specialised in new build and full property refurbishments. For us, priority is the good customer service.
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Latest review:
Bricklaying- 29 May 2026
Giani and his colleague repaired our wall beautifully for a reasonable price. He talked us through the issues that caused the wall to fail and explained what needed doing. He started the job the next morning arriving promptly and then went about the job with care and pride. I can whole heartedly recommend AGB Construction to anyone looking for builders with good communication, a sincere pride in their work and honest fair pricing.
Bogdan Pana
No reviews yet
Extension Builder in Barnes
TOP QUALITY MAINTENANCE & CONSTRUCTION delivers internal and external works, adapted to our clients’ needs and specifications, providing top quality maintenance, refurbishment and repairs, all work being executed by our skilled and experienced team of technicians.
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GH Build Specialists
No reviews yet
Extension Builder in Barnes
NvQ level 6 construction manager with 20 years construction experience.
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Vullcan Construction
Rating: 1 out of 5
Extension Builder in Barnes
We are a CHAS and Safe Contractor accredited organisation specialising in the provision of bespoke and high end specifications in relation to all aspects of internal refurbishments for both contemporary and period properties, in addition to commercial fit-out works, as well as small to large scale structural alternations. Our clients choose us for our experience and strong level of communication during our projects, our highly competitive rates and the high level of quality of our finish.
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Latest review:
Extensions- 25 Aug 2020
I did my due diligence on Vullcan, but things went downhill. After a week i got a pre-tax invoice for £3000 for a more "complex" drainage system which was already completed, this was the start of them trying to get around contract items and look for every way possible to charge extra fees which i can’t go through in the word limit here. When that dint work they refused to do the work. e.g. they literally installed a tempered glass sheet, with liquid glue on my roof and stated to me that this was a "roof window". I had to show them buildings regulations that this was unacceptable and illegal especially when our contract said it has to be a VELUX ROOF WINDOW! Promised a 6-8 week completion, this is 9 months later. I had now paid about 90% of the original bill and 100% of additional costs. The final payment was due after completion and a 2 week snagging period. But the demand for payments started, with threats to sue. This was laughable as they hadn't completed the job. •The roof was leaking •Electrical issues with the fuse box and multiple light /electrical points •Outstanding items •The buildings controls company stated they would not be able to sign off on the building work because of outstanding issues, which I wouldn’t have even known as they lied stating they HAD the certificate. I agreed to send a FULL payment to an escrow company and pay HALF of the costs so they can complete and fix safety issues but they refused! Shameful experience.
In Out Constuct
Rating: 3 out of 5
Extension Builder in Barnes
My company In Out Construct we are a professional building company which you the client can fully trust. We specialise in most building aspects such as : Refurbishments, Wall openings, structural steel installations, Loft conversions, removal of chimneys, kitchens, bathrooms installation, Kitchen extensions, painting decorating. We always aim to fulfill our customer needs, comply with all British Standard regulations and make sure all our work is of best standard, and complited on time.
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Latest review:
Kitchen Fitting- 16 Jul 2018
Very good work and completed on time. Highly recommended.
Vokrri construction ltd
No reviews yet
Extension Builder in Barnes
Yes, I offer a guarantee
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Spring Construction Solutions Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We undertake all aspects of residential and commercial building projects with regard to refurbishment and extensions. We have 45 years experience in the building trade and also working with architects and surveyors as well as managing our own projects.
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Latest review:
Restoration & Refurbishment- 25 Feb 2020
Malcolm and his team did great work on my house. The job consisted of full house redecoration, building bespoke shelving and built in wardrobes, loft boarding and installing ladder, replacing fencing and general pruning in the garden. They were able to turn their hands to all manner of jobs. Malcolm had a full team onsite every day and they finished the work ahead of schedule. At all times Malcolm was very responsive and worked hard to ensure that any changes along the way were accommodated. I would happily recommend Spring Construction and would not hesitate to use them again in the future.
N.S. Builders (London) Ltd
Rating: 5 out of 5
Extension Builder in Barnes
we undertake all kinds of building work such as extensions, loft conversion, full house renovation and much more. we have more than 18 years of experience in the construction industry. we normally undertake extensions, loft conversions and renovations.
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Latest review:
Extensions- 30 Jul 2020
Very happy with the job carried out. The team were professional, efficient with the foundations, groundwork and overall extension build. Extremely patient and flexible, happy to help with extra jobs and charged fair price. Good communication and worked on weekends where necessary to get the job done. Would recommend and will be using again on future works and projects.
MPS Building Services
Rating: 5 out of 5
Extension Builder in Barnes
MPS Building Services is a company providing a professional service to the construction industry and our endless client base,providing a high quality service to our clients all over the south east of the country.the service we provide is a professional,friendly,clean and reliable service.
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Latest review:
Extensions- 11 May 2016
Really happy with the work Paul and his team did on our extension. They were quick, neat and tidy throughout and kept us updated at each stage. There were some early design changes which building control insisted on and they were happy to adapt to the new plans without fuss. We couldn't believe how quickly it was all finished and the standard of work was very high too. Would definitely hire again if we ever need to.
ADJ Builders Limited
Rating: 5 out of 5
Extension Builder in Barnes
Hello ..my name is Alfred. I, have over 12 years of experience in building site. Perfectionist in my work and ability to guarantee customer satisfaction. Hard working and ensures all deadlines and targets are met. A good eye for detail, precise and accurate at all times and will complete all work to the highest standards.My experience shows in the finish, with no visible streaks. Polite friendly and helpful.
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Latest review:
Painting & Decorating- 6 Oct 2022
Very pleased with our choice. We initially got four quotes from different builders, most of them were terrible at communicating apart from Alfred. He was very easy to work with, responsive and very careful with our brand new house. His team was hard working, tidy and fast. They completely renovated our garden from removal of old decking and gravel to setting up new fences, levelling and turfing the ground. They also removed our old kitchen, partition wall and carpet, as well as did jobs like plastering, building a wall and set up lights and shelves. We’ll surely have him back soon to work on other jobs.
Next Vision Development
Rating: 5 out of 5
Extension Builder in Barnes
For over a Decade, Next Vision Development has been delivering high-quality property refurbishment and construction services. Our dedicated team takes pride in its professionalism, reliability, and exceptional craftsmanship. We work with both homeowners and businesses, providing tailored solutions that bring your vision to life. Our Services Include: - Complete Property Renovations & Refurbishments - Kitchen Fitting & Full Renovations - Bathroom Renovations - Painting & Decorating - Flooring (Laminate, Engineered, Vinyl, Solid Wood & more) - Plumbing & Heating Solutions - Carpentry & Joinery - Paving & Patios - Property Extensions - New Builds At Next Vision Development, we combine expertise, attention to detail, and a commitment to excellence to ensure every project is completed to the highest standards. Whether it’s transforming a single room or managing a full-scale property development, we deliver results that exceed expectations. *WE ARE CURRENTLY UPDATING OUR PICTURE PORTFOLIO, SO PLEASE DO NOT HESITATE TO ASK FOR MORE PHOTOS OF PREVIOUS PROJECTS THAT WE HAVE COMPLETED* THANKS IN ADVANCE.
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Latest review:
Restoration & Refurbishment- 3 Jun 2020
Very Harding working and conscientious. They have done an outstanding job with which both me and my wife are very pleased with
G.W.Builders
Rating: 5 out of 5
Extension Builder in Barnes
My name is Gavin. I have been a bricklayer since leaving school and have over 25 years experience in the building trade. Feel free to check my excellent feedback. Working area Sutton Coldfield and surrounding areas. Willing to travel further for bigger jobs. Free Quotes within a 5mile radius of Hardwick.
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Latest review:
Extensions- 20 Sep 2023
GW builders did an amazing job building my porch. Gavin and the team were friendly and professional throughout. Would definitely recommend to others and use again
Power Design and Build Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We offer a full service from concept-design to sign-off. Due to our unique experience and qualifications, we provide a full in-house service covering all aspects of your project so you only deal with one company from start to finish. We also provide planning drawings and structural engineering calculations. Our strength lies in working to make your project as efficient as possible so buildabilty, cost and programme are considered on the outset.
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Latest review:
Extensions- 31 Aug 2020
Brendan, Jan & the rest of the team were great. There was total trust on both sides and the attention to detail was to the level I wanted & expected. Communication was straightforward, inclusions & exclusions were clear and I'm delighted with the end product. Would I use the team again? Absolutely.
IDL Contractors Ltd
Rating: 5 out of 5
Extension Builder in Barnes
I am in the building industry for more than 20 years, nevertheless, my company was registered in 2017. Our team is specialized in doing extensions, house conversions and refurbishments.
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Latest review:
I can't recommend IDL highly enough, Lubo and his team were efficient, on time and completed the work quickly with no fuss, plus they gave us a payment plan and time frame that suited us. Our garage conversion has transformed our house, it feels so open and light, thanks Lubo xx

4.1

Top rated Extension Builders

Our Extension Builders in Barnes, are rated 4.1 out of 5 based on 17 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.