Extension Builders in Barnes

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

Easily find verified Barnes Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Barnes.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Barnes

3562 Results

Sort by:

House Renovation Services London LTD
No reviews yet
Extension Builder in Barnes
I am a London based cont actor with over 10 years experience in property renovation and construction. I specialise in delivering high quality building work, from full refurbishments to extensions and new builds. I pride myself on reliable service, clear communication, and excellent workmanship.
Get in touch
Musawir Architecture Limited
Rating: 5 out of 5
Extension Builder in Barnes
We are fully qualified & established architectural design team, with high success rates in obtaining residential and commercial planning approval. A multi-disciplinary consultancy with 10 years combined experience. We provide services for all projects, new builds, extensions, conversion along with commercial projects and change of use. Musawir Architecture retains our competitive edge having exceptional approval rates for planning & building regulations submissions and offer outstanding quality.
Get in touch
Latest review:
Extensions- 5 Feb 2021
Abul was very professional and went through our extension plans thoroughly, making sure he understood exactly what it was we were after and made some suggestions himself. He has been very easy to contact with any queries, a great service.
HWB construction
Rating: 5 out of 5
Extension Builder in Barnes
Our executive team's come from diverse backgrounds such as design, engineering and management. Dedicated and focused, our vision has always been to be a dynamic and innovative organisation. The joint experience of our executive team is well over 20 years and provides us and our partners with a significant level of expertise which is applied to each project. HWB’s unique approach means we can be flexible and bespoke in all we do when delivering excellence in the construction industry.
Get in touch
Latest review:
Extensions- 28 Oct 2018
We appointed HWB to carry out a full refurbishment on our house, this involved re-gutting the interior and building an extension and loft conversion plus some landscaping in the garden. We spoke to many builders but finally appointed HWB based on their previous projects and professionalism. Appointing builders for any work is always difficult however we are delighted that we went with HWB. Throughout the project they have demonstrated high levels of professionalism, were very organised and worked to very high standards. They were collaborative throughout the whole project and kept us informed at every stage. As the project developed there were some changes made and HWB were flexible and open to new instructions made by us, as well as giving us valuable advice. Farag, Ayoub and the HWB team were always available to answer any questions and provided us with constant feedback on progress as well as identify new solutions to aid the development. They have a great team of workers who work to a high standard and are supervised throughout the project. We made the right decision going with HWB Construction and have no hesitation in recommending them.
UNDERWAY CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Barnes
Here at Underway Construction we cover all aspects of building from extensions, conversions and refurbishments to decking, oak framing and hanging doors. Specialising in first and second fix carpentry with over 10 years experience we work alongside architects and engineers to ensure our clients are always provided a professional and reliable service.
Get in touch
Latest review:
Carpentry- 3 Jul 2023
Henry did a great job installing an internal door for us. Good quality job, kept everything clean and tidy, and smooth communication.
ALT’s Builders
Rating: 5 out of 5
Extension Builder in Barnes
We are a family run business with more than a decade of experience. At ALT’s Builders Ltd we pride ourselves on an efficient and friendly service, and achieve 100% costumer satisfaction ethic. So no matter how big or small your job is we can help. ALT’s Builders Limited is a leading and reputable Construction Company serving around London Ever since we opened for business, we’ve taken a comprehensive approach to construction industry, providing our clients with a wide range of services to cover their needs. our clients are our Number one priority and we go extra mile to make sure they’re completely satisfied. we stand by the excellence of our work and provide clients with personalized attention based on their specific needs. With this service, we’re fully prepared to tackle even the most complex projects and stand by the exceptional quality of our work.
Get in touch
Latest review:
Loft Conversion- 6 Jul 2026
Brief was a loft conversion + our front driveway completed in East Dulwich, South East London in Q1 2026 and we’d happily recommend Altin from ALTs builders if your in need of a good quality builder: - Competitive price - Good comms throughout - Hard working and extra hours as required to keep project on time - Highly reviewed on checkatrade.com / mybuilder.com company profiles - Overall professional job which we are super happy with When finishing up with us he then started another project down the road off the back of our recommendation and I know they are also very happy with him as a builder!
NuLux group
No reviews yet
Extension Builder in Barnes
At Nulux we specialise in interior design, Constuction property renovations and maintenance. We treat every project as it’s our own home providing outstanding quality work and services.
Get in touch
Constructum Code Ltd
Rating: 4.2 out of 5
Extension Builder in Barnes
****** Constructum Code building company ****** We offer various construction services, from fence building to renovation work, extensions, home building and loft conversions. We also provide a wide range of interior building and renovation services. We have highly qualified project managers with over 22 years of experience in construction & building industry. WE OFFER: *The Complete Service* *10 Year Guarantee* *Free Estimates* *Competitive Prices* *Full Building Control Approved Installer* *Excellent Designs and Unbeatable Workmanship* *Fully insured building service* Constructum Code, at its core, is a construction company through and through. We are general contractors who can provide a wide range of building services, both small and large. Services Provided: 3D Rendering, Basement Conversion, Building Design, Complete Bathroom Renovation, Complete Kitchen Renovation, Conservatory Design & Installation, Custom Build Homes, Home Renovation, House Extensions, House Plans, House Restoration, Interior Architecture, Interior Design, Loft Conversion, Loft Restoration, New Home Build, Project Management, Balcony Design & Construction, Concrete Construction, Concrete Repair
Get in touch
Latest review:
I ordered repairs from the Constructum Code company, I wanted to create a play area. The guys tried to select all the materials and work technologies to suit my budget. The tiles on the walls and floor were laid well. The work was completed efficiently and on time. I recommend this company...
Gurwindersingh4ltd
Rating: 4 out of 5
Extension Builder in Barnes
Hi my name is gurwinder singh I am skilled in plumbing, skimming , roofing , tilling , bathroom fitting , loft, garage conversions . I do jobs at affordable rates. Thanks
Get in touch
Latest review:
Tiling- 21 Jan 2023
I highly recommend this builder and the team behind it. They have been very professional and efficient in their work, and the results have been outstanding. They have been very accommodating and communicative throughout the entire process, and I have found them to be extremely knowledgeable and helpful. The quality of the work is top-notch and I would not hesitate to recommend them to anyone looking to have a building project completed.
Johny's Brickwork Ltd
Rating: 4.9 out of 5
Extension Builder in Barnes
I have 7 years experience as a bricklayer and i ve done garden wallls, extensions, garages.
Get in touch
Latest review:
Extensions- 6 Nov 2023
I hired John to do my Outbuilding Shell only. The work included demolishing existing structure, foundations, Block and Beam, EPDM roofing, Cavity Block works and Soakway. All aforesaid works were carried to highest standards and I am very pleased with works. John is friendly, reliable and trustworthy. I would use his services again and recommend him to others.
Brits construction ltd
Rating: 5 out of 5
Extension Builder in Barnes
Brits has vast knowledge & experience of residential projects and has built several Modern Loft conversions, Major Side & Rear Extensions and whole house Internal Refurbishments. We Offer; Project Management. Program of works. Regular Meetings with the client. Liaise with the local authorities. We execute Projects on time, within budget and with the highest quality. Best housekeeping and H&S Standards. Employees & Public Liability Insurances. Member of FMB, LABC, Trust Mark, NABC
Get in touch
Latest review:
Extensions- 21 Jul 2023
We had a loft conversion and a 9x3m rear extension constructed. We also had underfloor heating, flooring, a new staircase and air con installed. We are happy with the result and would recommend this company. They have also respected warranty and fixed issues that have come up after construction and decorating work completed.
Aml developments ltd
Rating: 5 out of 5
Extension Builder in Barnes
We have 25 years experience in the construction industry. my company offers a complete building service which includes extensions loft conversions and refurbishments. Our team of tradesmen are reliable courteous & tidy. We hope to assist you on your future projects.
Get in touch
Latest review:
Conversions - General- 20 Mar 2019
Paul is very professional, hard working and reliable builder. We are very happy with his work. I cannot recommend him enough.
AVOTERG Ltd
Rating: 5 out of 5
Extension Builder in Barnes
Our aim is to help clients achieve their objective on time and budget and to the highest standard. We value the good communication with the clients, and try to have as much information as possible with regards to how their project must look when completed.
Get in touch
Latest review:
The job was a complete refurbishment of a one bed flat, including rewiring and re-plumbing. We would recommend Al and his team without any hesitation. From the very beginning and all the way to completion, we felt very lucky and fortunate to hire them. We found them to be very hardworking, conscientious and professional. The job was a difficult and complex one, but the team still completed within time and within budget. Al's advice made the whole process easier and we found him to be very trustworthy and honest. The end result was better than we originally hoped for and was done to a high standard.
Daedalus SPV Limited
No reviews yet
Extension Builder in Barnes
Full Home Refurbishments Bathrooms Kitchens Painting Decorating Floor coverings Conservatories, Orangeries & Extensions Windows
Get in touch
Blueline Enterprise Limited
Rating: 5 out of 5
Extension Builder in Barnes
Blueline Enterprise is a family run firm specialising in high quality refurbishments, extensions, conversions and new builds. We have undertaken various projects through professional architects and private clients. We a reputable building construction firm based predominantly in North West London.
Get in touch
Latest review:
Blueline completed the work to the exact high standard i was hoping for, while remaining on budget and estimated timescales - the three things that were most important to us! They were punctual, practical, knowledgeable and willing to give advice when either needed or when something could potentially be improved. They were always available to talk through what was happening at every stage of our job, with any complications arising, and importantly solutions to any problems. They knew their stuff and got the job done without any hassle either. They even came back after the job was finished to shift some pipework which i had an extra requirement for. The best feedback i could give is that we will go straight to them for any work we require in the future, and have already recommended them to friends.
RD PAINTING & RENOVATIONS LTD
No reviews yet
Extension Builder in Barnes
RD Painting & Renovation provides professional painting and renovation services for homes and businesses. We handle everything from interior and exterior painting to repairs and remodels, always focusing on quality, reliability, and customer satisfaction. Our goal is to make every space look its best and meet the unique needs of each client.
Get in touch
kensington Construction & Renovation Ltd
No reviews yet
Extension Builder in Barnes
Welcome to Kensington Construction & Renovation Ltd, where we bring new life to old spaces and craft new ones with precision and care. Our expertise goes beyond refurbishments and restorations. We are adept at bespoke furniture design,build and installs, demolition, decorating and all other building trades. When it comes to interior renovations, we leave no stone unturned. From luxury bathrooms to kitchens, our team can transform your property and we approach each project with the care and dedication it deserves. Bespoke carpentry is where our passion meets precision. Our master craftsmen create custom pieces that elevate interiors, from stunning cabinetry to intricate bespoke items. Every detail is meticulously crafted to reflect the unique personality and style of our clients and their ideas. In addition to residential services, we offer comprehensive commercial fit-out solutions. Whether it's creating inspiring workspaces or welcoming retail environments, we tailor our services to meet the specific needs and objectives of each client, delivering results that exceed expectations. At KCR, we pride ourselves on our commitment to quality, craftsmanship, and client satisfaction. From concept to completion, we are dedicated to delivering excellence in every project we undertake. Let us turn your vision into reality and transform your space into something extraordinary. www.kcr.ltd
Get in touch

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.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.