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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Soho Building and maintenance Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We are Soho Building and Maintenance Ltd, currently in our second year of business. We have an abundance of experience in the building industry with our own fully vetted trades including our own in house quantity surveyor for any large tenders. We undertake works of any amount no matter big or small, we can work with architects under minor works contracts
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Latest review:
Rear single story extension. Knocked wall out to extend kitchen. Craig -workman - very good. Lee and Dan project managed and were both excellent. Very please with everything, they turned up on time and when they said they would, cleaned up and finished build on time as agreed. I would recommend them to anyone.
13-13 BUILDERS LTD
Rating: 4.5 out of 5
Extension Builder in Barnes
I do plastering, plaster board, carpentry, partition, roofing, groundwork’s, driveways, gardening, extension, loft conversions
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Latest review:
Carpentry- 25 Apr 2026
Very helpful, fixed my front door sill and other odd jobs around the house. Would call again and good quality
alpha green construction
Rating: 5 out of 5
Extension Builder in Barnes
I have 25 years experience in the trade.specialise in innovation and reliability. Trade built company generally around masonry , roofing and all other structural undertakings. We specialise in loft conversions and house extensions , masonry and landscape gardening. We also provide design and build schemes for the above topics.
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Latest review:
Extensions- 14 May 2019
We love Berry, he has followed our project from the beginning to the end and he has been there all the steps of the way. He listened to our ideas and enriched them with more of his adding his special attention to details skills. For every problem, we had along the way he talked to us making sure we were happy with alternative solutions. Plus he is able to create a friendly working environment which makes the invasion of your house less intrusive, he has been very respectful of our space. We can genuinely say that he has gone beyond our expectations, and will be very happy to do future works with him. Luca and Nick
Fatjon Ndrevataj
Rating: 5 out of 5
Extension Builder in Barnes
Fatjon Renovations ltd. Own company, van and tools. Painter and decorator, kitchen and bathroom fitter, tiler, plasterer, carpenter, with years experience working in the London area.
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Latest review:
Kitchen Fitting- 16 Feb 2026
Fatjon did a great job on our kitchen and took good care of his surroundings.
H&S Construction Ltd
Rating: 5 out of 5
Extension Builder in Barnes
H&S Building Contractors is a leading construction company based in London and Essex, specialising in both residential and commercial projects. We are dedicated to delivering high-quality craftsmanship and innovative building solutions tailored to each client’s needs. With a strong focus on sustainability and client satisfaction, we transform visions into reality while ensuring every project is completed on time and within budget. Our experienced team works diligently to maintain transparent communication, uphold the highest safety standards, and deliver exceptional results at every stage of the construction process.
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Latest review:
Shumon and his team did plastering, painting and decorating and they built me a fireplace and fitted in a fire. I would highly recommend him - he is absolutely brilliant and did a great job - they take a lot of pride in what they do, very trustworthy, and I am looking to have them back about Christmas time to do some bathroom work. They are very good value for money.
JM Build Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We are team of professional builders specializing in refurbishments, loft conversions and extensions.Do not hesitate to contact us for a no obligation quote. We are also proud member of Checkatrade. You Dream It We Build It.
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Latest review:
Extensions- 14 Jul 2021
Juro and his team completed a total refurbishment of our house that included removing all internal walls, along with a double story side extension, a huge job involving lots of steels, re-roofing, new construction, new bathrooms and kitchen, new windows and rendering along with all the plumbing and electrical work and decoration. They did the most incredible job, working efficiently, adapting to any problems that came along and working really hard to create the best finish possible at the budget we had. Despite the pandemic arriving just after the demolition stage, they didn’t miss a day on site, and worked tirelessly to get materials to keep the project moving. Incredibly they still managed to finish the project on schedule and to a standard that was exceptional. Juro is honest and upfront, didn’t ever add costs or ‘unforeseeables’ and was an absolute joy to work with. He also stuck to a very clear payment schedule that was easy to follow and always meant we only paid when we were absolutely 100% happy. My only reservation in writing this review is that I would like to selfishly hang on to him and keep his schedule clear for future jobs with family and friends!
Aviraj Construction Ltd
Rating: 5 out of 5
Extension Builder in Barnes
We have been in the construction business over 10+ years. We specialized in complete bathroom renovation, kitchen renovation, flooring. We do extension, loft conversation, carpenter, brickwork, plastering, plumbing & all kind of general building work. We strive to provide 100% client satisfaction. We believe there is no job that can not be accomplished to customer expectation. We go extra mile to ensure that all customer needs and requirements are satisfied.
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Latest review:
Extensions- 7 Oct 2022
Our outdoor office was completed in time and on budget. I’m amazed at how quickly everything was completed and the standard is amazing. Would definitely recommend Parmajit to anyone looking to get a small to medium sized project done.
Uk property solutions (ups) ltd
No reviews yet
Extension Builder in Barnes
Hello. I have been in the building industry for over thirty years. I’m a competent professional and cover all aspects of the industry. Please don’t hesitate to contact me for professional advise quotations ect.
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Greenfield Building Solutions Limited
Rating: 5 out of 5
Extension Builder in Barnes
Greenfield Building Solutions is a versatile building contractor offering a comprehensive range of services across residential construction and renovation. From full refurbishments and loft conversions to bespoke house extensions, they handle every aspect of the building process with precision and care. Known for their commitment to quality craftsmanship and client satisfaction, Greenfield Building Solutions works closely with homeowners to transform spaces—whether it’s modernising interiors, expanding living areas, or reimagining unused lofts into functional rooms. Their team brings expertise, reliability, and a tailored approach to each project, making them a trusted choice for turning property dreams into reality.
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Latest review:
Extensions- 6 May 2026
Mark & Max built a custom summer house/garden office for us to our exact specification and within budget. . The work included clearing & preparing the area, erecting and insulating the space, cladding the exterior walls and sealing the roof, installing uPVC doors, plus electrical and data connectivity. . It was all done without fuss or hassle, and at a high standard. Mark & Max were a pleasure to communicate and work with, would 100% hire them again. . Further references & a viewing of their finished work available by appointment
Joseph Riley Property Services
Rating: 5 out of 5
Extension Builder in Barnes
I've been working for 15 years now, I started as a bricklayer but soon was plastering, landscaping and all aspects of building work. we mainly do extensions and refurbishments. We also do hard landscaping and design I also went to college for city and guilds whilst doing an apprenticeship for a large design and build company, we're a family run small business who like to keep the customers happy.
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Latest review:
Landscaping- 18 May 2021
Joe was professional and responsive for my posted job to do fencing and wood trim repairs. He was able to provide a quote quickly and did the work in quick fashion. I wasn't quite sure what was feasible, but Joe was able to provide good guidance on what could be done for the repairs. The quality of the workmanship seems to be high, and I am pleased with the result. I would definitely recommend Joe for this type of work.
MM Tiling Services
Rating: 5 out of 5
Extension Builder in Barnes
Hi, I’m Michal, a professional bathroom fitter specialising in complete bathroom renovations from start to finish. I provide a fully managed service, covering everything from strip-out and preparation to plumbing, tiling, installation, and final finishing touches. Whether it’s a full bathroom refurbishment, a modern upgrade, or a bespoke design. I work cleanly, efficiently, and always aim to minimise disruption to your home. Clear communication, reliability, and customer satisfaction are at the heart of every project I take on. From small updates to full transformations, I ensure every bathroom is completed to the highest standard — on time and within budget. If you're looking for a skilled and dependable bathroom fitter, I’d be happy to help bring your vision to life. Recommendations from previous clients are available.
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Latest review:
Tiling- 11 Oct 2015
Tiled floor good job
R G Property Maintenance
Rating: 4 out of 5
Extension Builder in Barnes
My name is Richard I have been in the building trade for over 20 years doing Extensions loft conversions carpentry kitchen fitting and bathroom fitting. I am reliable taking pride in the work that I carry out.
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Latest review:
Carpentry- 8 Jul 2020
Richard completed an excellent job at our school, reliable, efficient and has loads of knowledge.
NKN HOME CREATIONS LIMITED
Rating: 5 out of 5
Extension Builder in Barnes
We are a reliable and experienced construction company committed to delivering high-quality workmanship with care and attention to detail. We specialize in home extensions, refurbishments, new builds, and loft conversions, ensuring every project is completed safely, professionally, and to the highest standards.
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Latest review:
Plastering- 2 Feb 2026
Happy with work, left job site tidy and clean. Will be happy to use company for future work. Thanks
The Gate Property Management
No reviews yet
Extension Builder in Barnes
Welcome to The Gate PM – Your Trusted Partner for Complete Home Transformations 📍 Where we work: We cover the wider London metropolitan area, bringing our reliable service to homeowners across London and the surrounding regions. 👷‍♂️ Our experience: With years of hands-on experience in the construction industry, we have successfully completed countless projects ranging from small refurbishments to full-scale extensions. Our portfolio includes everything from listed building renovations to modern loft conversions and new-build extensions. 🛠️ Our special skills: We offer a true one-stop shop for all your building needs. Our in-house team covers: · Full renovations and refurbishments · Extensions, loft conversions, and conservatories · Kitchens, bathrooms, and plumbing · Roofing, flooring, plastering, and tiling · Porch, driveways, and external landscaping · Electrical installations and rewiring · Painting and decorating ✅ Why hire us: We believe in honest communication, transparent pricing, and exceptional craftsmanship. Every project is managed personally from start to finish, ensuring quality control and peace of mind. We're fully insured, pride ourselves on cleanliness and reliability, and won't leave.
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REALTOP LTD
Rating: 5 out of 5
Extension Builder in Barnes
Good morning, Realtop Ltd provides commercial and domestic full refurbishment services, helping clients bring their dream spaces to life through our experienced and professional team. Our services include painting and decorating, interior design support, bespoke fitted solutions, flooring installation, white walling, composite and hygienic cladding, door installation, and general refurbishment works. Please note that being shortlisted causes us to pay a lead fee, so kindly shortlist us only if the estimated cost I have offered is suitable for your budget.
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Latest review:
Hard Flooring- 21 Jun 2025
Brilliant job done by Vincento . Right from the first visit to the job completion very professional and done the job rightly . Will definitely recommend. Five stars.
H4construction ltd
No reviews yet
Extension Builder in Barnes
Having been in service for many years, I've gained a breadth of knowledge and make a point to continually improve our skills as acompany, so that you have the confidence to employ our services and feel satisfied with that choice. We carry out all types of works may it be decorating or a full refurbishment, We also specialise in extensions of the home such as loft extensions kitchen extensions and also more recently we have designed and installed many bespoke garden rooms
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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.