Extension Builders in Beckenham, Kent

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (18 reviews)

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Some of our top rated extension builders in Beckenham, Kent

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MMDesigns
No reviews yet
Extension Builder in Beckenham, Kent
ARB/RIBA Chartered Architect with 7 years of experience in residential and educational projects from small to medium-sized. All projects have been UK based on meeting all the building regulations and other relevant standards. It's been amazing to work with private clients as well as local authorities and housing developers. Feel free to contact me if you have any questions or projects that need looking over.
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Jarvis Building Services
Rating: 5 out of 5
Extension Builder in Beckenham, Kent
We are a family run business with over 40 years experience in the building industry. We take enormous pride in our workmanship and the quality of the finished product. We are also very trustworthy and reliable and at lease 50% of our work is word of mouth or repeat custom and this is something we are very proud of.
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Latest review:
Restoration & Refurbishment- 14 Oct 2025
Peter and team did a brilliant job refurbishing our kitchen. He organised building control sign off for knocking down an internal wall. He sourced new glazing for us and designed and built a custom bench seat. He assisted us with ordering the right units for our kitchen. He was great at problem solving along the way e.g. cutting cornice to fit tricky corners. The team were courteous and left our house tidy at the end of each day.
Phillip Thomas O'Gorman
No reviews yet
Extension Builder in Beckenham, Kent
Father and Son alliance, based in south London with over 30 years of Bricklaying experience. All aspects of brickwork, garden walls, extension and repointing undertaken, free quotations provided, and a friendly efficient service.
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LWJ Construction Ltd
No reviews yet
Extension Builder in Beckenham, Kent
LWJ Construction is a dedicated residential construction company based in South London - Dulwich, focusing on delivering personalised building solutions tailored to individual client needs. With a commitment to quality craftsmanship and customer satisfaction, LWJ Construction offers a range of services from new builds to renovations, ensuring each project reflects the unique vision and requirements of its clients. By emphasising bespoke construction services, LWJ Construction distinguishes itself from its competitors, providing personalised attention and customised solutions that cater specifically to individual client preferences. Tell us about your project and we are more than happy to provide you with a free quote.
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J D Building Services
No reviews yet
Extension Builder in Beckenham, Kent
I'm a friendly, reliable, general builder, that prides myself on being reasonably priced while also delivering a professional service and finish.
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ThorneBack
No reviews yet
Extension Builder in Beckenham, Kent
I have worked in the building industry for the last 7 years doing trade work including, capentary, bricklaying and grounds work, some of our work involves pitching roofs, buildings walls, digging foundations and drainage.
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Pops Building Services Ltd
Rating: 5 out of 5
Extension Builder in Beckenham, Kent
I am a city and guilds advanced craft qualified carpenter/joiner With over 30 years experience in the construction industry. I was the director of a property development company. I’ve managed contracts for NHS trusts as well as private contractors. The types of work I normally undertake are loft conversions, extensions, renovations, kitchen and bathroom installations
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Latest review:
Peter was the on-site foreman on our complete house renovation, which took just over a year. This included an additional ensuite pod bedroom in the roof and a side-return and extension to the kitchen. Peter was totally reliable throughout the project and thoroughly professional. Throughout this time we were living in the house with the children. He was always on time, managed the on-site team well and communicated clearly with us. His workmanship is high quality and he was also a stickler for checking the work of others and getting it updated if it wasn’t up to scratch. I have no hesitation in recommending Peter.
Avista Construction Ltd
No reviews yet
Extension Builder in Beckenham, Kent
Extensions and loft conversions, carpentry and joinery, bathrooms and kitchens fitting, decorating and all relating works
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first4builders
Rating: 5 out of 5
Extension Builder in Beckenham, Kent
Loft conversions, house extensions. All kinds of renovation and refurbishment: doors and windows, flooring, tiling, bathroom and kitchen fitting. Building with confidence!
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Latest review:
MR ZAIKA DID A BIG JOB FOR ME,WHICH HE FINISHED IN GIVEN TIME .HE BUILT A REAR EXTENTION,AND DID RENOVATION SUCH AS FLOORING,REMOVING AND INSTALLING DOORS,TILING,REMOVING AND CHANGING WINDOWS,BUILDING A NEW KITCHEN,AND BATHROOM.HE WAS RELIABLE AND DID EVERYTHING TO THE BEST OF HIS ABILITY AND AS HE HAD PROMISED. HIS WORK IS EXTREMELY PROFESSIONAL AND CLEAN I AM VERY HAPPY WITH MR ZAIKA'SWORK . I WOULD RECOMMEND MR ZAIKA HIGHLY AND I AM SURE ANYONE GIVING HIM WORK WOULD BE VERY HAPPY AS I HAVE BEEN.
Buildaway Construction Ltd
No reviews yet
Extension Builder in Beckenham, Kent
Buildaway is a trusted construction company based in Bromley, delivering high-quality home renovations across all of London, Kent and Essex. We specialise in bathrooms, kitchens, loft conversions, home extensions, full refurbishments and structural works — combining skilled trades with reliable project management and clear communication. From demolition and first fix to final finish, we deliver workmanship that lasts, tidy sites and results you can rely on. Whether it’s one room or a whole property, Buildaway brings care, precision and value every time. Contact us today for a free quote and discover why homeowners choose us for reliable, high-standard residential projects.
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BigBellyBuilders
No reviews yet
Extension Builder in Beckenham, Kent
We the Big Belly Builders are general builders who take pride in everything we do. With an appetite for perfection, we aim for 100% customer satisfaction everytime. Services we offer: Loft conversions Extentions Conservatories Patios Driveways Fences Maintenance Plastering/rendering Landscaping Project management And much much more... Have a Big Belly Day!
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RSP SPIRE LTD
No reviews yet
Extension Builder in Beckenham, Kent
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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Mikhail
No reviews yet
Extension Builder in Beckenham, Kent
Hi , I’m a professional bricklayer with big experience, can do any type of projects
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Affordable Building Company
Rating: 5 out of 5
Extension Builder in Beckenham, Kent
We specialise in both internal and external building works within the domsestic market and offer a compete build sevise from project design all the way to project completion. We have specialist crews for all projects, lofts, extensions and coservatories.
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Latest review:
Extensions- 26 Sep 2012
Andy and his team did a fantastic job. Our neighbours were very uncooperative and restricted noisy working hours quite severely but Andy was very accomodating. He is very easy to talk to and happy to discuss ideas you may have concerning the build. I would definately reccommend him. We are delighted by the extension and will definately use Andy again in the future. Thanks!
ASAP RENOVATION LIMITED
No reviews yet
Extension Builder in Beckenham, Kent
We are ASAP Renovation Ltd. Our team has over 10 years of building experience in and around the capital, putting you and your project in the safest of hands. Our building expertise is backed up by our very own network of trusted suppliers, giving us the ability to deliver to a high standard on any task you require. From the construction of an extension or bathroom or even complete house renovations in London, there's no better choice to see your home dreams brought to life.
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Feng Da Ltd
No reviews yet
Extension Builder in Beckenham, Kent
We are a family run business who have been in the trade for over forty years. We offer a professional, friendly service and pride ourselves in getting repeat business. We have had many clients, returning customers and most of them like our service, also we are cover all area in London. Main work we undertake, but not limited to: Extensions Brick works Plastering Roofing Carpentry Tiling Refurbishments Painting and decorating Kitchen and Bathroom Maintenance works
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3.9

Top rated Extension Builders

Our Extension Builders in Beckenham, Kent, are rated 3.9 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 Beckenham, Kent?

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 Beckenham, Kent 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 Beckenham, Kent who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Beckenham, Kent?

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

Find extension builders in Beckenham, Kent with MyBuilder

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

Step 2: Compare different extension builders in Beckenham, Kent

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

Step 3: Hire Beckenham, Kent extension builders with confidence

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

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

What to ask a Beckenham, Kent extension builder before hiring?

Before hiring an extension builder in Beckenham, Kent or extension building company in Beckenham, Kent, 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 Beckenham, Kent?

An extension builder in Beckenham, Kent 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 Beckenham, Kent 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 Beckenham, Kent?

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 Beckenham, Kent 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 Beckenham, Kent 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 Beckenham, Kent

Can an extension builder in Beckenham, Kent help with planning permission?

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

Many Beckenham, Kent 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 Beckenham, Kent help with materials and finishes?

Yes, most extension builders in Beckenham, Kent 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.