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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Samul Construction LTD
Rating: 5 out of 5
Extension Builder in Barnes
Estimate Prices From: * Loft Conversion £50k(labour+materials+scaffolding) * Home Extensions £3-4k per square metre * Basement £3-8k per square meter (labour+materials). * Bathroom refurbishment £8k (labour).
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Latest review:
Demolition- 18 Oct 2011
Thank you very much - good job and good service. A real help!
Pavlito Construction Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Pavlito Construction Ltd is a family run business with over 15 years of international experience in construction and general building (Germany, Italy, Poland and UK). We have worked extremely hard in order to establish a well respected name and reputation.
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Latest review:
Restoration & Refurbishment- 15 Feb 2016
Pawel and his team modernised our two bedroom house from top to bottom. They installed central heating in every room, they removed our old warm air heating, made an open plan for the kitchen and living room area, installed new bathroom and kitchen units and did the tiling too, they updated our electrics and sockets and also plastered and painted the walls and fitted our wooden flooring for downstairs. The job was completed within 12 weeks. We were very happy with the modernisation, our home looks completely different and has a new modern fresh feel. We will definately be using Pawel and his team for future jobs. Thanks again Khalima
Mo
Rating: 5 out of 5
Extension Builder in Barnes
Hi, I’m Mo – a skilled and trusted builder with a team of nearly 20 experienced tradesmen. We deliver high-quality results, fast and efficiently, no matter the size of the job. We specialise in everything from small repairs to full-scale builds, including: • Full house builds from the ground up • House extensions and structural alterations • Loft conversions & dormers • Bathroom & kitchen fitting • Plumbing & roofing • Bricklaying & repointing • Carpentry & joinery • Flooring (carpets, lino, laminate, etc.) • Painting & decorating • Plastering & rendering • Tiling • Windows & doors installation • Paving & landscaping • Damp proofing and more With years of experience and a reliable, multi-skilled team, we take pride in completing work to the highest standard — on time and within budget. We’re ready to take on your project and exceed expectations. Get in touch today for a free quote or site visit.
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Latest review:
Painting & Decorating- 3 Jul 2025
Mo and his team did a good job and when we needed to fix the detail, he was happy to oblige. Will definitely be looking to hire him again
R.L. Carpentry & Building Work
Rating: 5 out of 5
Extension Builder in Barnes
Hello to All I`m Ralph. I have 20 years experience in construction industry. I`m kitchen installation specialist. Over the years I have been working on many kitchens supplied by B&Q, Ikea, Howdens, Magnet, Wren, Wickes, etc. I am multi skilled tradesman so I can provide wide range of service. Electric,plumbing,painting/decorating, carpentry 1st 2nd fix.I`m professional, honestly, trustworthy and polite person. Providing service on highest standard. I love my job so I`m happy during the work.
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Latest review:
Kitchen Fitting- 12 Oct 2025
Ralph did a great job and went extra.
FKL
Rating: 5 out of 5
Extension Builder in Barnes
Hi thanks for taking the time to read my company profile, Form Construction specialise in extensions lofts basements and renovations. We strive to deliver quality workmanship. We pride ourselves on being quality tradesmen, always going the extra mile for our clients. We work with many different suppliers to ensure our clients get good value and good quality materials. If you feel we are suitable for your project please get in touch to discuss your project Many thanks John Campbell
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Latest review:
Kitchen Fitting- 3 Sep 2020
Very reliable, hard working and talented ! His quotation was incredibly reasonable too. Very grateful
Miftari construction ltd
Rating: 5 out of 5
Extension Builder in Barnes
Hi my name is Dritan Miftari I have worked in construction for over 20 years I started my company in 2013. I have lots of experience in construction. We do lofts, extensions, refurbishments, kitchen and bathrooms, flooring and painting and decorating. No job is to how small or to big for us. Kind regards Dritan Miftari
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Latest review:
Fantastic to work with
ResidentDevelopments
Rating: 5 out of 5
Extension Builder in Barnes
Conceiving and delivering aspirational residences, for the Resident.
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Latest review:
We have previously been burnt working with self proclaimed tradesmen. The organisation is professional and customer focussed. Working with them was a pleasure, I couldn’t recommend them enough.
GRANEROS IMPROVEMENTS LTD
Rating: 5 out of 5
Extension Builder in Barnes
Responsibility
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Latest review:
Carpentry- 21 Mar 2026
Adi has performed an excellent job, repairing couple of garden fences, very satisfied with his work and the way he has handled the job!
Tiling
Rating: 4.9 out of 5
Extension Builder in Barnes
With more than 15 years' experience in the trade we provide a professional, affordable and reliable service to private sectors throughout the local area. All jobs get completed on-schedule and to a very high standard. I take great pride in my work And always complete my work to the highest possible standard with a great eye for details.
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Latest review:
Joinery & Cabinet Making- 30 Oct 2024
Requested a quote only for a Design Client - very helpful and hopefully the client will follow up.
DRYPSIAK
Rating: 4.9 out of 5
Extension Builder in Barnes
Hello everybody! My name is Viktor. I am professional carpenter and joiner. I have big experience in first fix and second fix carpentry and joinery jobs. I install doors, skirtings, architraves, make partitions, and all jobs wiht wood. I make lofts conversion. I have experience 7 yers in carpentery and joinery, and lofts conversion. I also have big experience in bricklaing jobs, and in extention jobs.
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Latest review:
Carpentry- 21 Dec 2025
Viktor and Michael are very friendly and professional. They were on time and the price quoted was the price I paid. I hired them to install architraves around 4 internal doors and I am very happy with their work. They made sure I was happy with the work before they left and they took time to clean up after as well. They take real pride in their work as all the joints are perfectly aligned and all the nails are sunk in to the wood so I can apply filler afterwards and paint. Viktor also made a quick trip to Screwfix to ensure he used the strongest adhesive to fix the architraves to tiles in the bathroom. I will hire Viktor and Michael in the future to refurbish my stairs and install wall panelling on the stairs wall. I highly recommend them for their honest and professional work.
Ioan Hrit
Rating: 5 out of 5
Extension Builder in Barnes
With over 13 years experience I'm confident in all aspects of groundworks including new build and extensions from footings up to damp course, drainage and the slab construction, kerb laying, block paving; drives paths, slab laying, septic tank installation and soakaways.
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Latest review:
Groundwork & Foundations- 31 Oct 2025
Fantastic all round service. Ioan is very hard working, very knowledgeable in his field and is very well organised and experienced with the logistics and execution of all types of groundworks. I would highly recommend.
Bathroom Renovation
Rating: 5 out of 5
Extension Builder in Barnes
Im a multi trader and have a wealth of experience in construction on large projects and sites. We do bathrooms, kitchens, plastering, flooring, general renovations and extensions. We ensure we exceed clients expectations go above and beyond and work with a high standard and quality.
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Latest review:
Plastering- 8 Jun 2026
We were thoroughly pleased with Bathroom Renovation, Bahram and the services provided. We required stud walls throughout our apartment, ceiling replacement and ducting/pipework concealing. I can only say that Bahram and his communications have been a breath of fresh air. The team are efficient, friendly and get the job done - most importantly Bahram takes pride in the work his team complete. Our job was relatively urgent and Bahram offered what I feel was a fair price, remained communicative and had his team readily available to get the job completed within the timeframe. Most importantly, as with it seems all building works, jobs can grow slightly, but Bahram’s considered approach and advice was invaluable. We increased the scope of our works mid-job, and are really pleased with the results. Fair pricing, someone who has pride in their work, and a job well done.
CCM CAPITAL CONSTRUCTION LIMITED
Rating: 4.8 out of 5
Extension Builder in Barnes
All construction work
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Latest review:
Bathroom Fitting- 30 Nov 2025
Mohsen and his team are very professional workers. They communicated clearly with me during the quoting process and were very helpful. They replaced my shower tray and shower screen beautifully and exceeded my expectations. Highly recommend their work!
P.S. Building Projects Ltd
Rating: 5 out of 5
Extension Builder in Barnes
"WE ARE A HOME EXTENSION AND LOFT CONVERSION SPECIALIST. WE ALSO OFFER A COMPLETE BUILDING SERVICE! A family-run business, Quick growing building company with more than 20 yrs building experience. And we’ve been providing the highest quality work for our customers ever since. Everyone here at P.S.Building Projects Ltd is dedicated to meeting your specific requirements, delivering bespoke work on budget and on time. Which means you’ll enjoy peace of mind from start to finish."
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Latest review:
Conversions - General- 11 Oct 2022
We've been seriously impressed with Pawel and his team. They opened up our rear dining room/kitchen wall using an RSJ, following our engineer's drawings perfectly. They also did a few bits of plumbing and bricked up one of the windows at the rear, which is where the new kitchen will be fitted. They were incredibly tidy and really pleasant and courteous to be around, which my wife was so grateful for given we live in a busy family house (most builders are not like this...), I can't thank them enough! We will definitely be using them again in the not-so-distant future!
Jt building
Rating: 5 out of 5
Extension Builder in Barnes
I have been a multi trader for over 12 years, with quite extensive experience working in majority of trade departments from kitchens, bathrooms, tiling, plumbing, doors, windows, joinery, carptentry, first fix, second fix, lofts and extensions, have seen through many projects and worked with many people. Can also assist with design ideas/plans as well as build. Happy working with small or large projects, take full responsibility and pride in my work.
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Latest review:
I couldn’t be happier with the work carried out on my home. The tiling on the ground floor, the laminate flooring upstairs, and the kitchen units were all completed to an exceptionally high standard. The attention to detail was outstanding, and everything was finished neatly and professionally. He was reliable, hardworking, and clearly takes great pride in his work. The end result looks amazing and has completely transformed my home. I would highly recommend him to anyone looking for quality workmanship.
Balham construction Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Balham construction are a London based refurbishment and construction company that offer a wide range of services from full Property refurbishment to extensions and loft conversions and everything in between
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Latest review:
Tom and the team completed a full renovation of my flat. This included refurbishment of my kitchen, bathroom and general redecoration. The team were extremely hardworking and punctual and no job was too difficult for them. I would highly recommend their services.

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.