Extension builders in West Brompton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (20 reviews)

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Some of our top rated extension builders in West Brompton

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John and co building ltd
Rating: 5 out of 5
Extension Builder in West Brompton
John & Co Building Ltd is a professional London building company with over 15 years’ experience in residential construction and refurbishment. We specialise in extensions, loft conversions, full property renovations and high-quality refurbishments. We can manage the complete building process, from structural works through to plumbing, electrics, carpentry, plastering, decorating and final finishes. We pride ourselves on quality workmanship, clear communication and keeping our clients informed throughout the project. Having completed more than 50 residential projects, much of our work comes through recommendations and repeat clients. Whether it’s an extension, loft conversion or complete renovation, our aim is always to deliver a high-quality finish and a home our clients are proud of.
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Latest review:
Really great team who were considerate and proactive and the end result is fantastic
Ifa construction ltd
Rating: 5 out of 5
Extension Builder in West Brompton
House extension, lofts conversion, house refurbished, and new build
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Latest review:
Restoration & Refurbishment- 2 Jul 2023
AJ was thorough, friendly and thought things through. I would recommend him.
MB Building & Management Ltd
Rating: 5 out of 5
Extension Builder in West Brompton
We are building company with a focus on energy efficiency, air tightness and excellent build quality. Within the company there are two main areas of trade. One side predominantly focuses on high end full refurbs. The other is property management for landlords. Hence, we undertake a variety of jobs, ranging from handyman jobs and small roof repairs to basements and full new builds. We are mainly active in Battersea, Wandsworth, Clapham, Chelsea and Fulham.
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Latest review:
Extensions- 23 Jan 2023
Monika, Mario and the team were excellent! Finished the job to a very high standard. Monika was all over the details and Mario was highly skilled and just got things done. Despite the project overrunning by a month or so (really not that bad vs target), we can not wait to work on another project with Monika again.
G SINGH
Rating: 5 out of 5
Extension Builder in West Brompton
G SINGH BUILD is your trusted partner for high-quality home improvement and building services. Specializing in carpentry, bathroom fitting, fencing, gutter installation, driveways, and a wide range of general building work, we bring skill, reliability, and craftsmanship to every project. Whether you're renovating your bathroom, upgrading outdoor spaces, or tackling a full home improvement job, G SINGH BUILD delivers durable, precise, and beautifully finished results—on time and on budget. We take pride in turning your vision into reality with a commitment to excellence and customer satisfaction.
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Latest review:
Painting & Decorating- 26 Mar 2025
G singh gaves me an excellent job more than my expectation and helped me a lot as i dknt know much about construction work thanks G SINGH
VORTEX SERVICES LTD
Rating: 5 out of 5
Extension Builder in West Brompton
Vortex Trading Corporation Ltd, with over 25+ years staff and associates experience behind can offer our clients the best value for money in the property refurbishing fields. Our staff and associates having background with the Institute of the Federation of Master Builders, LABC (Local Administration Building Control), CSCS (Black Card), Party Wall Surveying, NTC-7 Qualifications, Masters in Project Management, and Qualified Architectural Designer and QS/Estimators. Offering turnkey project to clients.
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Latest review:
I had an extension built. The job was of a high calibre and professional standard and went to plan. Ross is well-organised, highly knowledgeable about building and construction, creative, dexterous, industrious, talented and has excellent problem-solving skills. He works professionally and is highly reliable. I strongly recommend Ross of Vortex Services Ltd to whoever is seeking building work done to his or her property.
30 Day Extensions Ltd
Rating: 4.8 out of 5
Extension Builder in West Brompton
COMPLETED 130 projects since lockdown•WIMBLEDON & SURBITON SHOPS now open. FREE- architectural and design services if you use us. •Fantastic reputation, reviews on google and webpage. • Speed, we build shell in 30 days. •priced by a QS and we add 15%. Simple! • •Highly skilled reputable teams. • Guarantees that mean something. • Peter snelson, the CEO has over 40 years experience in the industry internationally and nationally. A member of The Federation of Master Builders.
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Latest review:
Extensions- 30 Nov 2020
A really excellent set up of builders. Peter was great in evaluating the work and what we needed done. Sue was clear in her communication on costs, and then execution of the works by Taras and his team was superb. The extension was built in fantastic time-frame, and the end result is great. The work-ethic of the builders is what really makes them so good. They are on-time every day, and relentless with working hard each day.
Bischell Construction Limited
Rating: 4.9 out of 5
Extension Builder in West Brompton
Design & Build projects that squeeze more out of every pound spent. We’ll deliver an outcome for you that looks a lot more expensive than it really is. It will be tailored to your lifestyle, designed for your senses and fine-tuned to minimise lifetime costs. If you have an eye on value, or looking for maximum ROI, we’ll deliver more for less. It’s about smart design and construction, so the result gives you more performance, better quality of life and a stronger return from your budget.
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Latest review:
Architecture- 20 Oct 2026
Excellent service - very friendly and prompt with the delivery of work (structural engineers report for the removal of a load bearing wall). Would recommend!
VCKS
Rating: 5 out of 5
Extension Builder in West Brompton
VCKS Professional service provided on time
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Latest review:
Tiling- 10 May 2025
Victor is excellent. Gave a competitive quote and stuck to it. Victor works quietly and thoroughly. The job was completed on time and to a high standard. I will use him again and I recommend him.
City Building and Roofing Ltd
Rating: 4.9 out of 5
Extension Builder in West Brompton
City Building and Roofing Ltd provides professional roofing, refurbishment and building services across London and Surrey. Our services include roof repairs, new roofs, flat roofing, GRP roofing, roof refurbishment, guttering, fascias and soffits, chimney work, damp proofing, brickwork and full property refurbishment. We work with homeowners, landlords and commercial clients, delivering reliable workmanship, honest advice and free no obligation quotes.
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Latest review:
Damp Proofing- 26 Mar 2022
Good,timely and clean workers. Worked hard and efficiently with clear explanations. Very satisfied with the finish.
Chris
Rating: 5 out of 5
Extension Builder in West Brompton
Hello, For the last few years I have been working in a construction company. During the pandemic, I decided to start working on my own.
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Latest review:
Handyman- 5 Mar 2026
Chris built some pax wardrobes for us, did a fantastic job from start to finish. Arrived on time, great quality of work and left the place looking spotless. I would highly recomend him
Ag-Renovations
Rating: 5 out of 5
Extension Builder in West Brompton
Dear all. My name is Andrzej Galka, and I am the founder of AG-Renovation Ltd, a trusted building company. We have successfully completed many projects across Richmond, Kew Gardens, Chiswick, and Teddington, specialising in house extensions, loft conversions, and full home renovations. Our clients value us for our high-quality workmanship, reliability, and transparent approach. We are proud members of the Federation of Master Builders and are TrustMark registered, ensuring every project meets the highest standards. We are also fully insured with AXA Business Insurance for your complete peace of mind. We also provide a complete, stress-free service – from initial groundwork and structure through to finishing touches. I am a Gas Safe registered engineer and fully qualified to work on hot and cold water cylinder systems, which means we can manage every aspect of your project without the need for multiple contractors. If you are planning a building project, I would be delighted to visit, discuss your requirements, and provide a detailed quotation. References and examples of our completed work are available on request. With best regards, Andrzej Galka Founder & Director AG-Renovatio
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Latest review:
Restoration & Refurbishment- 1 Jul 2026
You will be happily surprised with the approach of Andrew. He is frank with his information, he is flexible to consider costs, neighbours, timing, options to solve a problem or complete the job. His crew is tidy and courteous. He estimates job time and stays to meet tit. He is experienced and practical. I want to use him for every job!
OL and Edward Limited
Rating: 4 out of 5
Extension Builder in West Brompton
Years in business: since 1996 At OL & Edward Limited, we take pride in delivering creative solutions which are as practical as they are eye-catching – no matter if it’s a home interior makeover or commercial development; from concept through completion each project gets special attention down to even the tiniest details for maximum impact results worth celebrating about! But don't just take our word for it – experience first hand why clients come back again (and again!) by taking advantage of any one of our services today: Full home renovation, bathroom and kitchen installation, flooring, tiling, consultation, design, exterior works and much more
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Latest review:
Restoration & Refurbishment- 17 Feb 2025
Great job on cleaning and refurbing our 2 bed flat. Very professional and responsive. Would hire them again in a heartbeat.
LH Builders & Plumbers
Rating: 5 out of 5
Extension Builder in West Brompton
Hi we do all building works been in the business for 25 years we are a family run business.all our tradesmen are fully qualified.we aim to please our customers as word of mouth is essential to us No job to small. We also do camera drain inspections and leak detection with thermal imaging. Leah is our assistant and replies to emails and sends us the job leads while we are working
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Latest review:
Plumbing- 4 Aug 2026
Gareth arrived early, identified the issue and was really prompt in fixing it. He was very clear in explaining what the issue was and showing me how he fixed it. We also had another issue in the bathroom and he was able to identify it and give tips on how to manage it in the future. I would definitely recommend him and have saved his number in case of the need for future work. His also provides guarantees for his work which gave me alot of peace of mind. Thanks again!
ABETA GROUP LIMITED
Rating: 5 out of 5
Extension Builder in West Brompton
ABETA GROUP LIMITED covers a wide range of construction services offered by our team of professionals.
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Latest review:
Kitchen Fitting- 30 Nov 2020
Aurenc was very helpful and accommodating. The work was well done. All the persons were respectful and clean.
CHIRO Alliance Limited
Rating: 5 out of 5
Extension Builder in West Brompton
Chiro Construction covers all types of building work including major renovations, lofts, extensions, commercial conversions and bespoke carpentry. We manage all aspects of the build from inception to completion, from demolition to decorating. With a proven track record of delivering a wide range of high-end projects, we have a 98% approval rating from over 50 positive reviews. Most of our work comes from previous client referrals. Call or email us today for a chat to discuss your project.
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Latest review:
Restoration & Refurbishment- 4 Sep 2020
Octavian is a really great guy, very reliable, never disappoint, maintained good communication with us all the time. As a customer, obviously the most important part is great craftmanship, we have used other teams before and you can easily tell the difference between his work and the others. From things such as painting (you can tell they have paint and sand multiple times to provide such great finishing), tile installation (the gap between each tile is tiny, and they are very flat), Octavian’s team can get them all done. This job involves a full flat refurbishment, so the flat was completely stripped, knocked down a few walls, install new pipes / wire etc. During his work he has spotted many things that we have not noticed before. Unlike some other contractors who do not care, they will just finish what they were asked to do and leave. Octavian spotted it and recommend us the best solution for it, to provide the best outcome for the project. It is important to find someone who do care about the customer and the project. We will use him again for our future projects. Thanks. Tommy
Nami Construction Ltd
Rating: 5 out of 5
Extension Builder in West Brompton
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.

4.6

Top rated Extension Builders

Our Extension Builders in West Brompton, are rated 4.6 out of 5 based on 20 reviews from customers like you.

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

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 West Brompton 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 West Brompton who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Brompton?

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

Find extension builders in West Brompton with MyBuilder

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

Step 2: Compare different extension builders in West Brompton

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

Step 3: Hire West Brompton extension builders with confidence

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

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

What to ask a West Brompton extension builder before hiring?

Before hiring an extension builder in West Brompton or extension building company in West Brompton, 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 West Brompton?

An extension builder in West Brompton 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 West Brompton 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 West Brompton?

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 West Brompton 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 West Brompton 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 West Brompton

Can an extension builder in West Brompton help with planning permission?

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

Many West Brompton 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 West Brompton help with materials and finishes?

Yes, most extension builders in West Brompton 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.