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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Surrey Property Maintenance & Construction
Rating: 5 out of 5
Extension Builder in Beckenham, South London
We are a family run local building company i personally have been in the building trade for over 28 years .we have a full list of completed extentions and loft conversions with satisfied clients and references avalible . We can deal with local council approval and building regulations . We have full public liability insurance
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Latest review:
Loft Conversion- 31 Dec 2019
He came first to look . Send us the quotation and then came to discuss the job. Seemed very professional in his work. After talking to him we were confident enough to hire him with our loft conversion and refurbishment of our Bungalow . Hoping that every thing is going well in the time frame and also the good quality job . So far good .looking forward to see my home beautiful to live in near future
Harmony House
Rating: 4.8 out of 5
Extension Builder in Beckenham, South London
Why choose us? 1. We bring your concept to life 2. A friendly, professional and reliable service 3. Ensure the journey is an enjoyable one 4. Acting responsibly and transparently. 5. You’ll be delighted with the result!
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Latest review:
Extensions- 28 Feb 2026
Poor workmanship , messy guys , roof leaking , walls not done properly , overall not good workmanship as have to redo many aspects of the kitchen extension I have to now replace the kitchen roof which was of poor quality , never employ Peter or Mariusz
M Stanley Solutions
No reviews yet
Extension Builder in Beckenham, South London
With over a decade of experience, I bring precision and expertise to every job. From redecorating your home and refurbishing your office to revamping your garden, no task is too big or too small. Exceptional customer service is at the heart of my work—if you’re not happy, I’m not satisfied.
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Baarc Ltd
No reviews yet
Extension Builder in Beckenham, South London
BaArc Ltd is a design led practice, specialising in Home Alterations, Conversions, Extensions and small scale New Build Housing Developments. With nearly 20 years of experience in both architecture and construction the company director has acquired a wide knowledge base which offers a comprehensive Design & Build service. BaArc Ltd can take you from initial concept through the planning process and onto the successful construction of your project.
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Mannat Plumbing and heating Services
Rating: 4.4 out of 5
Extension Builder in Beckenham, South London
Hi , we are gas safe engineer successfully established over 15 years . We undertake all sorts of heating, Plumbing, underfloor heating, air condition, property Extensions , lofts etc. We have specialised and experienced workforce for every job . All works undertaken at competitive rates and works done to high standard without compromising on safety and quality.
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Latest review:
Central Heating- 17 May 2023
He agreed first in three weeks and after three weeks he said cant as he asked for advance more than 50% which I have declined because I had bad experience before as paying in start and after that keep waiting.
L R Construction
No reviews yet
Extension Builder in Beckenham, South London
L R Construction is a family run business with nearly 40 years experience in the building industry. We take pride in our work and keeping our sites clean and tidy. Forming a great relationship with our customers making your building work as stress free as possible. All building work undertaken
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RA Designs and Build Ltd
Rating: 5 out of 5
Extension Builder in Beckenham, South London
We are a dynamic construction firm specialising in innovative design and high-quality building solutions for both residential and commercial projects. With a commitment to excellence and attention to detail, our team of experienced architects, engineers, and skilled tradespeople collaborates closely with clients to bring their visions to life. We prioritise sustainable practices and utilise cutting-edge technology to enhance efficiency and ensure the durability of our structures. From initial design concepts to final construction, we are dedicated to delivering projects that not only meet but exceed client expectations, creating lasting value and aesthetic appeal. Our customers consistently recommend us for our commitment to quality, attention to detail, and exceptional customer service. They appreciate our ability to turn their visions into reality while staying on schedule and within budget. Positive testimonials highlight our professionalism, seamless communication, and the collaborative approach we take throughout each project. Clients feel confident entrusting us with their building needs, knowing that we prioritise their satisfaction and work tirelessly to ensure memorable and successful outcomes.
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Latest review:
Excellent quality of work which has not caused any problems for many years. Efficient work style whilst keeping up a high standard of work.
BessyConstruction
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Bessy construction has provided building and specialist outdoor services for over 10 years in and around West London area. We are a well established business and our reputation has been built upon our well completed projects, high quality of work and client satisfaction, reliability, flexibility, honesty & integrity. Our aim is too make sure that every customer is 100% happy with the job we carried out.
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Latest review:
I was very delighted to find Bessy Construction, to be part of my house renovation and also kitchen and loft extension. I was very lucky To have a grate team such as Bessy construction that came highly recommended. Bessy construction made my family and I to love our home. Highly recommend it has a great team that worked with passion on everything they touched in my house. Once again, Bessy construction thanks a lot for everything you done for me and my family. We always highly recommend you and everybody will be very satisfied and lucky to have you. London needs more builders like you all the best my friend Thanks
Property Makeover Ltd
No reviews yet
Extension Builder in Beckenham, South London
For all property needs, there is Property Makeover Ltd. With our wealth of experience and in-depth expertise we are in a position to provide home improvement and property makeovers to the highest possible standard.
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Razvan Consttruction Ltd
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Razvan Consttruction Ltd is a company with a solid team of builders with experience of 20 years!
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Latest review:
We had a lot of work done including a brand new roof, whole rear and side extensions. New driveway. Landscaping. Complete fit out works inside. I wouldn’t hesitate to recommend Razvan- he is a complete professional and a really nice guy. Honest and hardworking and takes pride in his work. Out of all of the builders I have used Razvan is the only one I would use again.
H&A Innovation Limited
No reviews yet
Extension Builder in Beckenham, South London
H&A specialises in small construction jobs that includes residential housing & commercial extensions, new builds and refurbishment. Our company value is to provide a quality service at a low cost and to achieve a 100% customer satisfaction.
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FBS LONDON LTD
No reviews yet
Extension Builder in Beckenham, South London
FBS LONDON LTD are fully qualified, insured and certified team of builders. We have a wealth of experience spanning over 20 years in the building/construction industry. During this time, we have built a reputation based on quality of work, reliability and trustworthiness. Jobs undertaken and completed to the highest standards include: loft and garage conversions extensions hard scaping (paving/patios) renovations (kitchens & bathrooms) a lot of general home improvements garden works carpentry joinery and more We pride ourselves on completing jobs on time and in budget. Many customers come back to us time and time again, we can provide customer references as well as arrange viewings of previous work we have done. Contact us today for a FREE quote or advice and start your journey to a perfect home!
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A1 business solutions
No reviews yet
Extension Builder in Beckenham, South London
Very Experienced Well Equiped Staff Availability Time Keeping
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Joshua smith
No reviews yet
Extension Builder in Beckenham, South London
Hi, I’m joshua I'm an experienced builder with a passion for delivering high-quality work. I specialize in a range of services including extensions, renovations, roofing, and general building work. With years of hands-on experience, I take pride in completing projects on time, within budget, and to the highest standard. I’m committed to excellent customer service and clear communication throughout the project. No job is too big or small — I’m here to help you achieve your vision.
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Castle view construction Surrey Ltd
No reviews yet
Extension Builder in Beckenham, South London
Castle view construction Surrey Ltd is a building and refurbishment company delivering high quality construction services across residential and commercial projects. We specialise in full property renovations extensions structural works fit outs and maintenance
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D&E Smart Building Solutions Ltd
Rating: 5 out of 5
Extension Builder in Beckenham, South London
Loft conversion. New or refurbished extension. All Carpentry work. New decking or refurbished. Brick walls front of the house, or new building. New or refurbished bathroom, Tilse, Garden, Kitchen, Wood floor, Plumbing with certificate, Electrical with certificate, and much, much more..
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Latest review:
Bathroom Fitting- 7 Mar 2022
Daniel was great and we were impressed by the level of care and detail in his work. Would use him again and recommend to friends.

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.

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 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.