Extension Builders in Brixton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

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Some of our top rated extension builders in Brixton

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Hennow Construction
Rating: 5 out of 5
Extension Builder in Brixton
Hi, we are a small father son business with over 30 years of building experience. As both father and son are bricklayers we tend to take on jobs such as: extensions brick and block work; out buildings; garage conversions; garden walls; patios and drive ways. Formerly Owens Construction, we have now merged with close family friends to expand the brand and become Hennow Construction.
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Latest review:
Bricklaying- 24 Apr 2019
Jake and Harry did an amazing job with our front wall and fence in the rear garden. We got three quotes for the job and they were the cheapest but also came across professionally. It wasn't a straight forward job, it was was using reclaimed materials that were varying size and shapes. I was also quite particular on the look, I wanted the brickwork to match our house, they took care to match the pointing and bricks but offered advice on how we could save money whist still getting the look we wanted. They arrived everyday on time, they were reliable, honest and extremely hardworking. They also kept us in the loop throughout the work making sure we were going to be happy with the end result. I have already recommended them to friends and will use them again for our next project. Thumbs up from us!
Seymour Building Services Limited
Rating: 5 out of 5
Extension Builder in Brixton
Seymour Building Services would look after your complete project. We would organise all our tradesmen so the right trades are there at the right time. This leaves you with no headaches. Just one number to call for our friendly help and advice.
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Latest review:
Kenny and team did a brilliant job replacing my old lean-to porch area for a new smart extension with windows, door and even a cat flap. They were on time, organised, efficient and took away all the old materials and rubbish. Kenny was helpful when he visited and prompt in replying to all communications and supplying quotes and invoices. I am very happy with their work and wouldn't hesitate to recommend their services.
Build My Design
No reviews yet
Extension Builder in Brixton
Build My Design is a medium sized building company that has completed over 200 projects in the London area. They are specialists in home additions but carry out all manor of residential and commercial construction work. They provide full design and build services but are more than happy to to work from designs provided by other architects. Please call today for a free no obligation site visit, assessment and quotation.
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De Winter’s Property Services LTD
Rating: 3 out of 5
Extension Builder in Brixton
Welcome to De Winter’s Property Services LTD – we proudly cover all aspects of work, both domestic and commercial. Whether it’s your home or business, our experienced team delivers high-quality, reliable solutions tailored to your needs. I’m Aidan De Winter, director of De Winter’s Property Services. I’ve been a fully qualified plumbing and heating engineer since 2014, with extensive experience across domestic and commercial sectors. Over the years, I’ve built strong knowledge in many areas of the construction industry and a trusted team of skilled tradespeople around me. Based in South London, we’re happy to take on jobs across all of London and beyond. Why choose us? With a reputation for quality, honesty, and reliability, we deliver every job to the highest standard—on time and within budget. No job is too big or too small, and we treat every project with the care it deserves.
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Latest review:
Plumbing- 24 Jan 2026
I did hire Aiden De Winter for the job. He came and inspected the problem and sent us a link to purchase a new pump. I paid him for this work. We purchased a new pump, and he decided not to finish the job and come back to install the pump. This caused a lot of problems as he was the second plumber I hired for this job, and now we have to find a third plumber! What a waste.. how hard is it to come back and fit the pump! Do not use this company at all costs!
P.S. Building Projects Ltd
Rating: 5 out of 5
Extension Builder in Brixton
"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!
MB Healthy Design Ltd
Rating: 5 out of 5
Extension Builder in Brixton
* 3D Design * Bespoke Furniture * Kitchen/Bathroom Cabinets * Fencing * Shopfitting We provide high quality services with affordable prices.
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Latest review:
The price was very reasonable for the quality of work he delivered. He used high quality materials and tools, and did not cut any corners. I am satisfied with the final product.
Olgert Doko
Rating: 4.8 out of 5
Extension Builder in Brixton
My name is Olgert and my team and I are ready to give you a quote, on any building needs - painting, plastering, tiling, roofing, extensions and many other services. We are friendly, reliable and professional and we care about our work. Give us a call today for a free quote. We are located in North West London and we have more than 15 years experience in construction.
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Latest review:
Tiling- 15 Sep 2021
Very professional and helpful from the beginning to the end. Great work, tiling was finished on time and to a great standard. Our new restaurant floor looks great and customers love the new look. Would definitely recommend and will use again. Thanks Team Doko
STM Contractors
No reviews yet
Extension Builder in Brixton
STM Contractors is a leading construction and project management firm dedicated to delivering high-quality services to clients across various industries. With a team of skilled professionals and a proven track record, we specialize in providing comprehensive solutions for residential, commercial, and industrial projects.
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RSP SPIRE LTD
No reviews yet
Extension Builder in Brixton
IT is a full service building company specialising in home renovations, home extensions, full maintenance and building alterations across the London. If your goal is to add value to your most important asset, get in touch and let us know what you are wishing to achieve, or read more about our wide range of home improvement services, before getting a no obligation estimate.
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Duo Builders Ltd
Rating: 5 out of 5
Extension Builder in Brixton
Duo Builders offers customers a high end service for all domestic building works. Our highly qualified team undertake Design, Build and Maintenance works on residential property in London and the surrounding area. Our wide range of services allows our clients access to an efficient quality service.
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Latest review:
Conversions - General- 26 Dec 2021
Overall, Duo Builders is good and I would recommend for any build work. Pros: 1. Committed to work and informed when not coming on any particular day 2. Had manpower allowing to add more hands if needed 3. Reliable people and nice staff / Team of young members 4. Does and completes work that was planned and agreed Cons: 1. Job took a lot of time than estimated as it was not thoroughly thought how the earth would be moved 2. Very hard to hold off the owner, its important for the client to be stay connected and informed. 3. Bit messy and site gets put of shape than original
Peter renovation
Rating: 3.7 out of 5
Extension Builder in Brixton
When you need a reliable builder for refurbish or extend your property our skilled team of experienced craftsmanship are ready to help you. We can provide a tailor-made service to suit your budget and requirements!
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Latest review:
Conversions - General- 6 Oct 2025
Peter and Dan did an excellent job from start to finish. They were professional, reliable, and easy to work with. The quality of their workmanship is top-notch, and they finished everything on time and to a high standard. I’m really pleased with the results and would highly recommend them.
PANZAJ Construction Ltd
No reviews yet
Extension Builder in Brixton
At the beginning the company operation has been focused on gardens structure, fencing and pavements. Due to demand highlited by regular clients in a few years later, Panzaj extended it's services by house extensions, loft conversions and general renovations. Since 2011 comprehensive, high-quality building and garden construction services have been offered by Panzaj in London and surrounding areas.
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h building and landscaping ltd
Rating: 4.9 out of 5
Extension Builder in Brixton
H Building & Landscaping has 20 years experience in all aspects of building. From Extensions, Refurbishments, Basements, All Garden landscaping, Patios,Driveways,Garden walls,Fencing,Turfing, kitchen & bathroom refits & much more. We pride ourselves in attention to detail & customer satisfaction. We are trustworthy & reliable with a great reputation! It would be our pleasure to assist you in all works needed, we will not be beaten on quality or price. H Building & Landscaping Ltd
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Latest review:
Extensions- 18 Nov 2020
Unfortunately, Stuart Helm did not even start the job let alone complete it! Each time Stuart Helm was supposed to start work on the porch, he contacted me with an excuse explaining why he couldn’t start the work. This occurred over several weeks and eventually, we mutually agreed he would not be doing the work and I would repost the job. Very disappointing and lots of time wasted.
INNOVATE BUILD GROUP LTD
Rating: 4.8 out of 5
Extension Builder in Brixton
I have over 20 years of experience in the construction industry. I am highly customer-focused and quality-driven, always aiming to complete jobs to the highest standards. My key goal is to ensure every project meets /exceeds customer expectations, delivering outstanding results every time.
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Latest review:
Extensions- 7 Jun 2026
Zilvinas and the team at Innovate Builders were outstanding from start to finish. We hired them to build our two-storey side extension. Zilvinas was open, professional, and fully committed throughout the project. He was always available to answer questions, offer advice, and guide us through each stage of the build. His team worked hard and delivered a high-quality finish, all while keeping the project on schedule and within budget. As this was our first major building project, we relied heavily on Zilvinas's expertise and guidance. His knowledge, practical advice, and problem-solving skills were invaluable and made what could have been a stressful experience feel smooth and manageable. We are absolutely delighted with the result and would not hesitate to recommend Innovate Builder. As I said it was our first ever big project, we had heard many horror stories but are so grateful to have found Zilvinas and his team.
Pegasus designs & maintenance
No reviews yet
Extension Builder in Brixton
We are a trusted construction handyman service with 11 years of experience in small to big projects. We specialize in luxury property refurbishments, with previous contracts with the Museum of London and Museum of Docklands. Our team provides high-quality workmanship and exceptional customer service. Contact us today for your construction needs.
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Chrisbrickie
Rating: 5 out of 5
Extension Builder in Brixton
Dear customers I do my best to satisfy my Clients with the jobs they have commissioned to me.
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Latest review:
Extensions- 17 Apr 2019
My extention was left incomplete by a incompetent builder, I had plenty builders coming around for quotes until I decided to go with Peter & Chris after receiving their detailed quote with everything explained in blank and white. I am extremely happy with my choice, as they did a great job finishing the project on time and most importantly great finishes. Peter has an amazing interior design taste, I would definitely recommend picking his brains, Chris on the other hand is very experienced and knowledgeable in building, both work very well together as well as his labourers are very respectful and hardworking. I recommend Peter & Chris to anyone who wants a stress free project. An above and beyond service !

3.9

Top rated Extension Builders

Our Extension Builders in Brixton, are rated 3.9 out of 5 based on 19 reviews from customers like you.

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

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 Brixton 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 Brixton who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Brixton?

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

Find extension builders in Brixton with MyBuilder

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

Step 2: Compare different extension builders in Brixton

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

Step 3: Hire Brixton extension builders with confidence

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

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

What to ask a Brixton extension builder before hiring?

Before hiring an extension builder in Brixton or extension building company in Brixton, 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 Brixton?

An extension builder in Brixton 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 Brixton 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 Brixton?

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 Brixton 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 Brixton 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 Brixton

Can an extension builder in Brixton help with planning permission?

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

Many Brixton 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 Brixton help with materials and finishes?

Yes, most extension builders in Brixton 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.