Extension Builders in Beckenham, South London

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 Beckenham, South London

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Spectra Homes Ltd
No reviews yet
Extension Builder in Beckenham, South London
We are specialised in house extensions, conversions, bathrooms refurbishment and all types of repairs work
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Kindzerskyi
No reviews yet
Extension Builder in Beckenham, South London
I love working, and I try to do my best in everything I do.
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De Winter’s Property Services LTD
Rating: 3 out of 5
Extension Builder in Beckenham, South London
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!
L.A.C Construction
No reviews yet
Extension Builder in Beckenham, South London
Hi, at South London Builders C.M.K we carry out various sorts of building and landscaping works from, Brickwork, Extensions, Porches, Patios and Driveways. Over the years I have acquired the best tradesman to assist me. With customer care at the forefront of any project do not hesitate to contact me for a free quotation or for any advise regarding your works. SLB 🧱
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Thomas Kershaw
No reviews yet
Extension Builder in Beckenham, South London
Building company with over 20 years experience in residential construction recently relocated from lancashire to south west London. Specialise in extensions, structural alterations, brickwork, groundworks, drainage, property repairs/maintenance, pointing landscaping and general building works. qualified bricklayer and stone mason with experience running a successful building company, I bring both hands on skill and strong project management to each job. Reliable, tidy and professional, I focus on delivering quality workmanship, clear communication and projects completed properly from start to finish. If you are looking for an experience builder you can trust, we'd be happy to discuss your project.
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Craft of London Ltd
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Craft of London are an established building company, specialising in design and build projects, creating bespoke interiors and homes. Our workmanship is of the best standard in London for either small, medium or grand designs.
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Latest review:
Extensions- 3 Sep 2013
Kel and his team worked on my single storey extension with bifold doors and glass roof. He also did some landscaping in my garden, replacing the fencing and installing a raised patio with cedar battens to the side. Overall I was very pleased with the work Kel did. He is a good communicator and frequently visited the site to keep on top of the work. Kel was happy to discuss requests and was flexible with design changes. The bulk of the work was completed on time with just some minor snags remaining, but the finish is excellent. It's been a long and stressful journey, but it's been easier with the friendly support and professional approach Kel has taken to his job. I'd be happy to recommend Craft of London and provide a reference on request.
D-Max Carpentry & Building
Rating: 5 out of 5
Extension Builder in Beckenham, South London
We aim to please all customers with high standards of work. Setting such high standards allows us to work from recommendations.
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Latest review:
Extensions- 22 Dec 2015
Excellent builders, polite,caring reliable, we would recommend them to anyone . High standard of workmanship and job finished on time. Very clean and tidy workers. They were brilliant.
Mss Decoration
No reviews yet
Extension Builder in Beckenham, South London
I am a reliable and skilled tradesman who takes pride in working cleanly, neatly, and to a high standard. From small repairs to larger renovation projects, I approach every job with the same care and attention to detail. My aim is not just to complete the work, but to ensure customers feel confident and satisfied with the result. With many years of hands-on experience, I provide practical, on-site advice that helps clients save time, space, and money. Before starting any job, I clearly explain the work involved and offer honest, transparent pricing. I offer a wide range of services including flooring installation, furniture assembly, door and window fitting, painting and decorating, basic plumbing and electrical work, as well as general home maintenance and repairs. I always work respectfully in my clients’ homes and leave the space clean and tidy. Customer satisfaction is my top priority, and I treat every property as if it were my own.
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Hooper brown construction
No reviews yet
Extension Builder in Beckenham, South London
I am a city & guilds qualified carpenter/ joiner who has more than 40 years working experience in building and refurbishing as well as my above trade
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RM constraction
No reviews yet
Extension Builder in Beckenham, South London
I am a building contractor with many years of experience. I can build your house extension, a garage, conservatory, a loft and any wall. I also work with renovations, so if you would like to finish the extension inside out or simple changing the look of your bathroom or kitchen look no further.
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Edmondbuilders ltd
No reviews yet
Extension Builder in Beckenham, South London
We are a well-established building and property maintenance company based in Croydon, Surrey. We work closely with our clients to create special places for living, working, and playing. As specialists in residential construction services for over 10 years our record of large and small building project
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Bansal interiors
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Hi my name is Ranj, I have been designing, planning and installing interior/exterior solutions such as new kitchens, bathrooms, bedroom furniture, exterior surfaces, roofing etc. I also landscape design, plan and install I also have a fully skilled team who cover all types of general building maintenance including plasterer’s, plumbers (gas safe), electricians and labourers.
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Latest review:
Garden Maintenance- 10 May 2026
Good communication, prompt, and did a great job. Would definitely recommend.
Jas & Savoy Construction ltd
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Building work,rear&side extention,loft conversion,kitchen,bath room,drive way, shed all type of work undertaken
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Latest review:
Extensions- 27 Jul 2016
I am so overwhelmed with this company after having bad luck with another company I would really recommend Jas & Savoy to everyone I have had a single storey extension- They are very respectable 1000%- The work they do is highly professional- Also at a very good reasonable price- I did not even have to watch them- They stay in contact with the building control, I am lost for words... They follow the drawings, and do exactly what you want... Beautiful work very highly recommended.... Thank you so much for your hard work Jas & Savoy Construction ltd
E.E Builders & Decorators
Rating: 4.7 out of 5
Extension Builder in Beckenham, South London
With over 12 years of experience Think Beyond LTD has earned a high reputation with our professional, high standard finish, clean and tidy way of work. Loft conversions , house extensions, full house refurbishments, bathroom and kitchen fitting and much, much more ! We cover all London areas.
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Latest review:
Painting & Decorating- 1 Jul 2017
I would highly recommend these guys. They did a very high quality job decorating my lounge, dining room, hallway and stairs. They started the job on time, worked through the weekend to get the job finished in good time, left the place clean and tidy at the end of every day, and cleaned up immaculately at the end of the job. The price was also very competitive compared with other quotes I received. I hope they are available again in a few months time when I have more decorating that needs to be done.
Jawad
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Jawad builds provides reliable,high quality building covering repairs, renovation and all types of building work from A-Z.
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Latest review:
Damp Proofing- 14 Feb 2026
Great communication and great work.
anova design ltd
No reviews yet
Extension Builder in Beckenham, South London
Full scale extensions, lofts, refurbishments and new builds. Qualified and experienced tradespeople, design services.
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3.9

Top rated Extension Builders

Our Extension Builders in Beckenham, South London, 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 Beckenham, South London?

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, South London 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, South London who are available and interested can respond to your post.

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

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

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

Find extension builders in Beckenham, South London with MyBuilder

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

Step 2: Compare different extension builders in Beckenham, South London

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

Step 3: Hire Beckenham, South London extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Beckenham, South London, 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, South London extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Beckenham, South London extension builder before hiring?

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

An extension builder in Beckenham, South London 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, South London 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, South London?

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, South London 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, South London 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, South London

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

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

Many Beckenham, South London 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, South London help with materials and finishes?

Yes, most extension builders in Beckenham, South London 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.