Extension Builders in Beckenham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (19 reviews)

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Some of our top rated extension builders in Beckenham

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Lee Constructions
Rating: 5 out of 5
Extension Builder in Beckenham
I have over 20 years Groundwork experience, including all aspect of the building trade. My catalogue of works include the following: Loft/house extensions, underpinning, general repairs, driveways, paving, landscaping, property management, refurbishments and project renovations. I am able to access various specialists to support all your building needs. I pride myself on my work ethic, reliability, transparency and honesty. I am happy to provide genuine references upon request. Please contact me for a no obligation quote. Thank you!
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Latest review:
Groundwork & Foundations- 16 Sep 2026
Martin was great. Great communication, thorough at the job. We are very pleased with the work. Would highly recommend. Many thanks
PK Decorating & Building Services LTD
Rating: 5 out of 5
Extension Builder in Beckenham
At PK Decorating and Building Services we are committed to deliver the highest standards of quality in everything we do.Make the most of your property with high quality work, done the way it should be; fantastic workmanship, client communication and ensuring everything is clean and tidy when the work has been completed.While PK Decorating and Building Services is based in South London, we can deliver our services across London and the surrounding areas.If you have any questions please contact us
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Latest review:
Conversions - General- 14 Jul 2026
PK decorating and building were professional and reliable. The craftsmanship was excellent. The manager and foreman managed job very well. I would highly recommend them.
Building Ideas
Rating: 5 out of 5
Extension Builder in Beckenham
With over 30yrs construction experience, I can offer a friendly, bespoke Architectural design service. Offering creative solutions from initial drawings to planning ,full working drawings and structural engineering calculations. I have been working between architectural design services and high end residential project management projects so believe I can bring value ,creativity and ultimately a strong understanding of what is required to deliver a project.
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Latest review:
Architecture- 20 Nov 2016
This is the first time we are carrying out an extension work at our property. Sean worked with us from a very early stage, prepared the drawings, coordinated with the council and ensured that we received the building approval on time. He was always available to advice us (when requested) on design challenges, choosing installers and material choices which we found very helpful. We are very happy with his work and thoroughly recommend him.
E.V Roofing
Rating: 5 out of 5
Extension Builder in Beckenham
I am running my own business now. I am a carpenter first and second fix. I have a lot of experience 7 years (2 years in Norway+5 years in UK). I am dedicated to providing top quality house renovations, loft conversion , roofing (tiling,fibreglass),house extension ,flooring, doors, windows, kitchen , wooden floors .
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Latest review:
In the round I had a very good experience when working with Ermal on our 6 month project, Reliability, quality and speed all exceeded expectations. I would recommend Ermal and his team, especially for any carpentry.
Edward Fox Building
Rating: 5 out of 5
Extension Builder in Beckenham
We are a family company in which we have been in the industry for over 20 years. We specialise in all aspects of construction such as renovations, loft conversions, new builds, and extensions. We like to give our clients affordable and competitor rates and work closely with the to insure the works and their ideas are turned into reality and make it as stress free them as possible.
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Latest review:
Restoration & Refurbishment- 31 Jul 2023
We put the ad up on Saturday morning, Ed popped over in the afternoon and gave us a quote and the job was completed on Monday! Super quick process. For a job that was causing us stress and we quickly realised we couldn’t do ourselves, Ed came in and sorted it really quickly as well as giving us advice on next steps for our redecorating. Will be contacting again when we need further help!
londonprobuild
Rating: 5 out of 5
Extension Builder in Beckenham
Londonprobuild is based in London/Surrey who specialist in Bathrooms, Kitchens and Renovations. We offer customers a comprehensive services helping them to optimize their space. We take the time to ascertain the needs of each client offering the following services: Home Improvements General Building Works & Repairs Plumbing & Heating Systems Painting & Decorating Electrical Plastering Tiling & Flooring Carpentry For a no-obligation quote please get in touch.
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Latest review:
Bathroom Fitting- 25 Nov 2020
Alex provided a great service. He came round on time to view the job, gave a detailed and competitive quote and built the bathroom exactly to spec. He was keen to ensure I was happy with all aspects of the installation with regard to both materials and workmanship and even carried out some small additional activities not included in the original quote. He was polite, hard working and very experienced. He also cleaned up the house at the end of each day. I am really pleased with my bathroom and would thoroughly recommend him to anyone.
SIM Building Services Ltd
Rating: 5 out of 5
Extension Builder in Beckenham
SIM Building Services Ltd is a construction company providing services in Croydon/London and surrounding areas. Our team has over 20 years of combined experience in residential, commercial and interior/exterior construction across all trades. We’re dedicated to a high level of customer service and will take the time to make sure that you are comfortable with the services we are providing.
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Latest review:
Extensions- 18 Sep 2022
Dritan is genuine and a man who keeps to his word. Very happy with him and his team. 100% recommend to others.
creative solutions 4 you limited
Rating: 5 out of 5
Extension Builder in Beckenham
a small building and restoration company, a builder with over 20 years of experience, we take proud of our projects building a good relationship with our clients.
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Latest review:
Bathroom Fitting- 10 Nov 2020
William and his team were very good and installed an entirely new shower cubicle in place on an existing cupboard in a bathroom with previously only a WC and sink. I am delighted with the result and will be using William and his team again for other projects across my rental portfolio.
Gibbons & Sons
Rating: 5 out of 5
Extension Builder in Beckenham
Gibbons & Sons are a family run business and been trading for 30 years. Our areas of business are extensions, kitchen fits, summer houses, loft conversions & general building.
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Latest review:
Extensions- 24 Jan 2021
We chose Gibbons and Sons for our Loft extension and new bathroom as they was one of the few firms who we contacted and was more then happy for us to view their workmanship during and after the build so we good see the quality of their works. They have been courteous, polite, very patient and accommodating to our chopping and changing of ideas. They helped us to bring our visions to life and offered advice when required without being pushy and driving a hard sale. They have been open and honest with our ideas and their recommendations and in some cases suggested a alternative more cost effective option. All in all we would highly recommend Gibbons and Sons for all types of building works.
ARROW
Rating: 5 out of 5
Extension Builder in Beckenham
Hi my name is Maicon and I would love to do the work you need, I do all the work as if it were for myself and we always want the best country, I work with carpentry in several sectors including kitchen assembly and laminate flooring, bathroom remodelling I do interior and exterior painting, install ceramic flooring, and small home repairs, I would love to make a budget and gain your confidence
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Latest review:
Kitchen Fitting- 23 May 2022
Excellent work done. Rod was flexible, accommodating and even saved me money! I will use him again and have recommended him to friends.
Rcm Buildrs
Rating: 5 out of 5
Extension Builder in Beckenham
RCM Builders is an insured construction company which offers a multitude of services. Loft conversions, extensions, painting, plastering, fencing, building renovations, and bricklaying are a few specialities we covers. We have over 28 years worth of experience and are well versed in providing high quality work, great customer service, great costumer satisfaction and great communication.
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Latest review:
Conversions - General- 7 Mar 2023
Have completed the job extremely well. Did a new door opening. Door fittings and plaster work . Very good finish. On time. Polite. Very pleased. Would hire again.
Pali contractors Ltd
Rating: 5 out of 5
Extension Builder in Beckenham
With over 15 years of experience in the construction and building trades, we’ve built a strong reputation for quality workmanship and reliable service. Based in Croydon, we work throughout South London and nearby areas, offering a wide range of professional building services. Our team specialises in carpentry, painting and decorating, extensions, loft conversions, kitchen installations, tiling, home improvements, and general building maintenance. We take pride in completing every project to a high standard, with careful attention to detail and a professional finish. We believe clear communication, honesty, and respect for our customers’ homes are key to great service. From small maintenance jobs to full renovations and extensions, we approach every project with the same level of care and dedication. Our goal is to make the process straightforward and stress-free, delivering results that last and ensuring our customers are completely satisfied with the final outcome.
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Latest review:
Handyman- 10 Apr 2026
He arrived on time and fixed the job as agreed. I then asked him to do another job widening the shed door, which he also completed well. I’m happy with the work and would recommend him.
Swami Builders Ltd
Rating: 5 out of 5
Extension Builder in Beckenham
General Builders - Extension - Loft conversion - Painting - Bathroom - Kitchen - Flooring - Roof work - Double glazing - Gutters and Fascias - Garden paving - Plumbing and Central Heating - Electric
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Latest review:
Fitted new bathroom Fitted new kitchen Plumber and tiling
Ivor
Rating: 5 out of 5
Extension Builder in Beckenham
refurbishment,rear &side extensions,loft conversions+all the 2nd fix internall works-kitchen,plumbing,electrical,drainage,tilling,glazing,rendering,plastering,painting
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Latest review:
LargeGround floor extension, conversion of a bedroom to second bathroom, loft conversion, front garden paving , rear garden natural stone fitting, full refurbished of 5 bedroom house, 2 bathrooms, 2 living rooms and office, 1 large garden shed builded
ANACOND LTD
Rating: 5 out of 5
Extension Builder in Beckenham
Throughout the years in construction my father has gathered well balanced team with broad range of experience in every aspect of the job. After acquiring my engineering degree and some experience elsewhere, I re-joined my father once again to provide the service we are both proud of. Our background and experience in construction, design and engineering allows us to provide our clients with high quality service and ensure smooth work-flow of each project. Attention to detail is the key!
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Latest review:
Ground floor rear extension and Loft conversion. First and Second fix works including drainage, structural (block work, wood work and steel work) electrical, plumbing, plastering and tiling. All works completed to a very high standard, we found Arnolda's and his team very helpful, thoughtful and pro-active nothing seemed to be too much trouble for him, we are more than happy with AnA's Construction Developments.
A abrahim
Rating: 5 out of 5
Extension Builder in Beckenham
Im professional bricklayer with 12 year experience I work with the companies and I work with my own the 12 years I can do all design brick and block
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Latest review:
Bricklaying- 23 Aug 2026
Absolutely excellent, a real pleasure to deal with and a delivered a high standard of work exactly as agreed - well recommended.

3.7

Top rated Extension Builders

Our Extension Builders in Beckenham, are rated 3.7 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?

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 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 who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Beckenham?

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

Find extension builders in Beckenham with MyBuilder

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

Step 2: Compare different extension builders in Beckenham

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

Step 3: Hire Beckenham extension builders with confidence

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

What to ask a Beckenham extension builder before hiring?

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

An extension builder in Beckenham 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 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?

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 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 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

Can an extension builder in Beckenham help with planning permission?

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

Many Beckenham 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 help with materials and finishes?

Yes, most extension builders in Beckenham 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.