Extension builders in Beckenham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in Beckenham

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Mario Services
Rating: 5 out of 5
Extension Builder in Beckenham
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
VD Building Services
Rating: 5 out of 5
Extension Builder in Beckenham
Hi.my name is Daniel with 20+ years experience of work in house refurbishment and if you look for a guy(team) honest and reliable who incorporate trades as carpentry, plastering, tilling, bricklaing, rendering, groundwork, extensions, loft conversions,painting and decorating, then i am the guy(team) you should stop to.I take pride and I pay attention to all details of a job, disregarding it size and I always try to suggest the best ideas for any job. Thanks
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Latest review:
Handyman- 2 Oct 2018
Did a great job, ended up being more work than anticipated as he had to fix the existing as well. Supplied all materials and came on days that we requested. Overall very satisfied, will hire him again.
URBAN SPACE BUILDING & PLUMBING LTD
Rating: 5 out of 5
Extension Builder in Beckenham
We are a well-established local building company with professional tradesmen. We specialise in all aspects of residential building works and refurbishments such as bathroom, kitchen & full refurbishments, as well as loft conversions & extensions. We have an in house team of experienced and professional tradesmen with skills to complete any project to high standards, on time and within budget. All our work is guaranteed, and we are happy to supply references on request.
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Latest review:
Extensions- 19 Apr 2021
Michael and the team were really enthusiastic and professional throughout. The standard of finishes throughout the project is really high and the guys went the extra miles to get the project finished on time. Michael has also been great with coming round to sort any "teething problem" promptly and helping out with some follow up works.
PB Carpentry
Rating: 5 out of 5
Extension Builder in Beckenham
I am a sole trader, I have been doing carpentry work for over 15 years. I have NVQ qualifications on carpentry and joinery. I undertake all carpentry work.
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Latest review:
Kitchen Fitting- 26 Jan 2019
Highly professional and helpful. Very pleased with the job.
I. N.S CONSTRUCTION & LANDSCAPE LTD
Rating: 5 out of 5
Extension Builder in Beckenham
We beat all the quotes!
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Latest review:
Extensions- 22 Dec 2025
Good honest communications, good work progress and easy to get on with. Mutual respect shown both sides.
MJV Extrem Construction Ltd
Rating: 5 out of 5
Extension Builder in Beckenham
MJV Extrem Construction specializes in refurbishments, extensions, loft conversions, new builds and complicated structural alterations.We are ready to help with any of electrical,plumbing and Gas desigh and installations included all aspect of different heating systems and UFH systems. We also undertake smaller projects like kitchen/bathroom Installation’s ,gardening and all your property needs from A to Z. Fully insured. Free quotations
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Latest review:
Plastering- 20 Jun 2025
Rerendering, repairing and redecorating front of house. Vic and his team were excellent. Highly skilled, respectful and trustworthy. Job was completed to a very high standard at a fair price. Couldn’t be happier. Will definitely use him again and would not hesitate to recommend him to others.
A&z
Rating: 4.7 out of 5
Extension Builder in Beckenham
Hi I’m Zan, I have 12 years of experience working as a groundwork engineer. I am offering good discounted prices whilst I establish my business! I offer the following services: -Digging foundations and all general groundwork -Gutter cleaning -Roof damage repair -Demolition -Pipework
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Latest review:
Groundwork & Foundations- 25 Oct 2026
Good work and communication, came back and finished the job
Inspire Construction Solution LTD
Rating: 5 out of 5
Extension Builder in Beckenham
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
LivingFunky Ltd
Rating: 5 out of 5
Extension Builder in Beckenham
LivingFunky is a Building Refurbishment and Property Development Company based in London. Our Managing Partner Mr Lindsay Gibbons has worked in the building industry for more than 20 years, managing and working on projects for individual homeowners through to multimillion pound commercial projects. As a Funky Quality Building Company we work with our clients every step of the way transforming and creating funky stylish homes that leave our clients feeling delighted and amazed.
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Latest review:
Plastering- 14 Feb 2017
Their price was competitive, work was of a good standard and they tidied up afterwards. Would use them again.
Mayle Brickwork
Rating: 5 out of 5
Extension Builder in Beckenham
I’m Charlie, a bricklayer with 7 years of experience in the construction industry. Over the years, I’ve gained a deep understanding of my craft, from laying solid foundations to creating intricate brickwork. I take pride in delivering high-quality results with precision and hard work. This year, I’ve decided to take the next step and start my own business. I’m excited to bring my experience and dedication to new projects, offering good quality bricklaying services
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Latest review:
Bricklaying- 12 Aug 2026
Tidy work, great communication highly recommend!
bb construction
Rating: 4.9 out of 5
Extension Builder in Beckenham
Barnes Builds Construction we are a small family run business covering all aspects off building and refurbishments offering highest standards of work and communication taking great pride in our crafts .
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Latest review:
Landscaping- 1 Jul 2026
Very conscientious and thorough- Chris and Ben were both polite, cleared up after themselves and did a good job.
Shemeck Builder
Rating: 5 out of 5
Extension Builder in Beckenham
We are a small team working in building industry for many years. We are experienced in all aspects of building like: Kitchen fitting, bathroom fitting, carpentry, tiling, plastering, painting and much more. Any project, any idea we can help you and you will be happy.
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Latest review:
Bathroom Fitting- 26 Jun 2022
Excellent recent bathroom project delivered by Robert and Shemeck. Everything delivered on schedule. Very tidy and considerate of working in a family home. Competitive rate, great attention to detail, completely trustworthy. I'd recommend anyone to speak to them about your project.
GNK Home Makeover
Rating: 5 out of 5
Extension Builder in Beckenham
We are a team of professionals who offer competitive prices, 3D visualisation, design guide, CAD plans, materials supply, professional advice and project management. Contact us for a free quote. We have great references.
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Latest review:
Kitchen Fitting- 24 Oct 2016
Kris, Gustav and their team have been absolutely amazing, cannot praise them enough. First of all - the job ended up being a lot larger than initially thought- as decided to replace old ceilings and flooring, walls -everything was uneven to start with. So took everything back to 'bare bones' and pretty much built it up again as a new house. New electrics, water pipes, completely new kitchen and bathroom. I really appreciate they were very straightforward with the estimated costs from the beginning - it did run slightly over budget but nothing too bad as had some contingency funds prepared. I would have hated to be quoted one price then half way through the project to discover it escalates out of control. Thankfully they are really honest and reliable. They were always easy to reach and replied any question I might have had in a timely manner. This was particularly important to me as I was between uk and us at the time so couln't be 'looking over their shoulder' so to speak. Last but not least the finish and quality of works is absolutely amazing! They couldn't have paid more attention to every little detail if it was their own home. For instance I remember last day of work when they were tidying up Gustav came back to put up door stoppers for me, completely on his own initiative. It's just a little touch but goes to show the dedication they've put into the project and care about the finished product.
Next Vision Development
Rating: 5 out of 5
Extension Builder in Beckenham
For over a Decade, Next Vision Development has been delivering high-quality property refurbishment and construction services. Our dedicated team takes pride in its professionalism, reliability, and exceptional craftsmanship. We work with both homeowners and businesses, providing tailored solutions that bring your vision to life. Our Services Include: - Complete Property Renovations & Refurbishments - Kitchen Fitting & Full Renovations - Bathroom Renovations - Painting & Decorating - Flooring (Laminate, Engineered, Vinyl, Solid Wood & more) - Plumbing & Heating Solutions - Carpentry & Joinery - Paving & Patios - Property Extensions - New Builds At Next Vision Development, we combine expertise, attention to detail, and a commitment to excellence to ensure every project is completed to the highest standards. Whether it’s transforming a single room or managing a full-scale property development, we deliver results that exceed expectations. *WE ARE CURRENTLY UPDATING OUR PICTURE PORTFOLIO, SO PLEASE DO NOT HESITATE TO ASK FOR MORE PHOTOS OF PREVIOUS PROJECTS THAT WE HAVE COMPLETED* THANKS IN ADVANCE.
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Latest review:
Restoration & Refurbishment- 3 Jun 2020
Very Harding working and conscientious. They have done an outstanding job with which both me and my wife are very pleased with
A&I Building Services
Rating: 5 out of 5
Extension Builder in Beckenham
With over 20 years of experience in the commercial and residential sectors in the UK, A&I BUILDING SERVICES addresses needs within the construction industry, undertaking a wide range of jobs. Types of work we normally undertake range from foundation to final decorations. With primary focus on the client, we aim to uphold the highest standards with regards to quality and Health & Safety.
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Latest review:
Extensions- 1 Feb 2019
Really impressed with Nick and George, very punctual and polite and good quality and care taken with their work. Would highly recommend to anyone and would use again.
POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in Beckenham
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
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Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez

4.2

Top rated Extension Builders

Our Extension Builders in Beckenham, are rated 4.2 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.