Extension builders in Bexley

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 Bexley

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Denis & Kelvin LTD
Rating: 5 out of 5
Extension Builder in Bexley
Hello im Fredi, I am a experieced builder and would like to deliver quality work to all my customers.
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Latest review:
Restoration & Refurbishment- 26 May 2024
Great work, punctual and informative. Would hire again for sure.
Lux Contracts Ltd
Rating: 4.9 out of 5
Extension Builder in Bexley
LUX contracts are a friendly,family run building contractor. We carry out all types of construction projects; refurbishments, kitchen and bathroom installations, conversions, extensions and electrical projects.Our team of tradesmen have many years of experience. We have completed numerous projects working closely with clients to ensure we understand and deliver a very high standard, meeting the clients requirements and expectations .
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Latest review:
Extensions- 22 Apr 2019
Richard and his team have always been very hard working, respectful and professional throughout the project. We have had an extension, utility and bathroom/toilet renovation and we are very happy with the quality of work. It has transformed our home into a beautiful living space. Richard was very helpful when giving advice on materials we were choosing. The team were very accommodating to our needs, easy to work with and always tidied up after themselves. The payment schedule made it easy to keep on top of the budget and pay for any optional extras along the way. The building work was completed within the set timescale and to a high standard. We would highly recommend Lux for any building/renovation work.
Dalton builders
Rating: 1 out of 5
Extension Builder in Bexley
At Dalton Builders, we're all about quality craftsmanship, no matter the job. Whether we're restoring a Grade 1 listed building or working on a brand-new build, we put the same care, skill and pride into everything we do. We believe in doing things properly, with attention to detail and a finish that speaks for itself. Big or small, old or new we've got it covered.
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Latest review:
Handyman- 16 Aug 2025
Sorry no show. No communication until I initiated only to know the day before that he is not coming because he has been in the hospitals. No initiative to set a next date and I have already bought £250 worth of materials. I gave chance to a new starter but was bitten. Avoid. I will ask my builder to compensate as there seems to me a guarantee from my builder.
ALT’s Builders
Rating: 5 out of 5
Extension Builder in Bexley
We are a family run business with more than a decade of experience. At ALT’s Builders Ltd we pride ourselves on an efficient and friendly service, and achieve 100% costumer satisfaction ethic. So no matter how big or small your job is we can help. ALT’s Builders Limited is a leading and reputable Construction Company serving around London Ever since we opened for business, we’ve taken a comprehensive approach to construction industry, providing our clients with a wide range of services to cover their needs. our clients are our Number one priority and we go extra mile to make sure they’re completely satisfied. we stand by the excellence of our work and provide clients with personalized attention based on their specific needs. With this service, we’re fully prepared to tackle even the most complex projects and stand by the exceptional quality of our work.
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Latest review:
Loft Conversion- 6 Jul 2026
Brief was a loft conversion + our front driveway completed in East Dulwich, South East London in Q1 2026 and we’d happily recommend Altin from ALTs builders if your in need of a good quality builder: - Competitive price - Good comms throughout - Hard working and extra hours as required to keep project on time - Highly reviewed on checkatrade.com / mybuilder.com company profiles - Overall professional job which we are super happy with When finishing up with us he then started another project down the road off the back of our recommendation and I know they are also very happy with him as a builder!
PANESAR CONSTRUCTIONS LTD
Rating: 5 out of 5
Extension Builder in Bexley
We have been doing Loft conversion, Extension,New Build, Repairs, Maintenance, Kitchens, Bathroom, Garage, Garden slab, Garden Fences, plumbing, plastering, Roof work and We have been doing all building work for the past 18 years all around London with a team of reliable and friendly staff.
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Latest review:
Loft Conversion- 22 Aug 2025
I had Panesar Builders build a dormer extension garden room and a bedroom above the garage around two years ago. I deliberately waited before writing a review to be sure there were no hidden issues — and I can happily say everything has held up perfectly. Before choosing Panesar Builders, I researched and spoke with many builders. His quote came in at a fair, middle-ground price — not the cheapest, but not the most expensive either. I felt confident in my choice, and two years on I can say it was absolutely the right decision. The work was completed to a high standard, communication throughout the project was clear, and the whole process was smooth. Two years later, the extension is still solid, with no problems at all. It has completely transformed our home. I really appreciated the professionalism, reliability, and attention to detail shown. I would have no hesitation in recommending Panesar Builders to anyone looking for a trustworthy builder who delivers quality work that lasts.
Kasa
Rating: 5 out of 5
Extension Builder in Bexley
Kasa Building services , it’s proud to offer a wide range of services from new build to loft&extensions , refurbishments , plumbing and electric,carpentry and loads more … With as quality matters
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Latest review:
Plumbing- 3 Apr 2023
Kasa was absolutely fantastic, nothing was too much hassle as we had to make changes during the job. We have now found a plumber, we can use on all future projects. Big thank you Kasa from myself and Aiste.
Brick by brick
Rating: 5 out of 5
Extension Builder in Bexley
I specialise in extensions , loft conversions and home improvements I have over 15 years experience from new builds to refurbishing
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Latest review:
Bricklaying- 4 Jul 2023
Harry was very professional and repaired my wall. Really pleased with the job. Would definitely recommend his work 5 stars ⭐️
Designs and Developments
Rating: 5 out of 5
Extension Builder in Bexley
At Designs and Developments we have a wide variety of services ranging from bathrooms, kitchens, flooring, decorating loft conversions and extensions.
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Latest review:
Kitchen Fitting- 31 Jul 2019
To say Nick is just a kitchen fitter isn’t doing his work justice, he’s a fantastic project manager and craftsmen as well. When we first met Nick he took 2 hours of his time running through all the options which was when we realised we were actually quite clueless! Although we hadn’t hired him at this point his advice was invaluable. We assumed this would mean Nick’s professionalism would mean he would be very expensive, this was not the case and he was actually a little cheaper than the other parties who quoted. Once Nick started it became apparent that he and his assistant Chow to great pride in their work and worked hard to get the job finished as quickly as possible to the highest standard. They left the site spotless at the end of each day. The result is a fantastic kitchen and flooring which we are extremely happy with. We are already thinking about the next renovation piece in our home and would love to use Nick again. Thanks Nick! Niall & Hannah
Affordable Building Company
Rating: 5 out of 5
Extension Builder in Bexley
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!
Handyman
No reviews yet
Extension Builder in Bexley
We make your dreams house
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FF Solutions Ltd
Rating: 5 out of 5
Extension Builder in Bexley
FF Solutions Ltd is a London based building company with an excellent reputation. Delivering project managed high standard workmanship with customer focus. FF Solutions provides a complete service from design to completion or working in partnership with your chosen architect. whether your looking to refurbish one or two rooms or need to completely renovate your property we are able to help.
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Latest review:
Extensions- 2 Aug 2019
FF Solutions did a fantastic job on our single storey extension with ensuite. Jay would give me daily updates as to what works were taking place and his attention fo detail is fantastic. His suggestions for cerfain aspects of the works were spot on especially our new shower room finishes. His prices were very reasonable considering rhe high spec of his workmanship. His lads were all excellent and polite and on a whole we had made the right choice choosing FF Soltions. I would 100% recommend Jay and his lads to my friends and anyone reading this feedback.
KRONBERG CONSTRUCTION LTD
No reviews yet
Extension Builder in Bexley
Contractor with 12 years experience in domestic building, specializing in flat roofing and extensions. I hold formal qualifications in bricklaying from City & Guilds and GRP flat roofing from CURE IT. I take pride in every job I do.
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Taras Breslavskyi
Rating: 5 out of 5
Extension Builder in Bexley
I offer work of any complexity, from hanging a picture to fixing plasterboard or laying tiles
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Latest review:
Painting & Decorating- 10 Mar 2026
Very professional , done a great job
A&H electrical
Rating: 1 out of 5
Extension Builder in Bexley
At our maintenance family company , we are dedicated to delivering top-quality of services that keep your home, business, or industrial space running smoothly and safely. With years of experience and a team of licensed, skilled , we pride ourselves on our commitment to reliability, efficiency, and customer satisfaction. Why Choose Our Services? • Trusted Professionals: Our team consists of skilled, vetted professionals who take pride in delivering high-quality work and excellent customer service. • Convenience: We offer flexible scheduling and comprehensive service packages to suit your specific needs, making home maintenance hassle-free. • Reliability: You can count on us to be there when you need us, whether for routine maintenance or unexpected emergencies. • Comprehensive Care: From minor fixes to major renovations, we cover all aspects of home maintenance, ensuring your home remains a comfortable and safe haven.
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Latest review:
Painting & Decorating- 24 Aug 2024
He didn’t show up.
Maksmith Ltd
Rating: 5 out of 5
Extension Builder in Bexley
At Maksmith Ltd, we specialise in loft conversions, house extensions, renovations, and residential construction projects across London. Established in 2024, the company was founded to provide homeowners with a reliable, professional building service backed by decades of hands-on industry experience. The company is led by Stephen Smith, an experienced construction and project management professional with over 40 years in the building industry. Before founding Maksmith Ltd, Stephen successfully managed projects for some of London's leading loft conversion and extension contractors, overseeing multiple developments and delivering high-quality results on time and within budget. Stephen's reputation has been built on clear communication, strong project leadership, and an ability to coordinate skilled teams efficiently throughout every stage of a build. His practical construction knowledge, combined with a Bachelors level Higher Diploma in Construction Management, allows him to manage projects of varying size and complexity with confidence and precision.“My strength is in building and completing projects, I'm good with that and have the ability to direct & support teams to deliver at scale and a track record to prove it”. At Maksmith Ltd, we understand that every project is a significant investment. That's why we focus on: ✓ Clear and honest communication  ✓ Professional project management  ✓ High-quality workmanship  ✓ Reliable timelines and budgets  ✓ Exceptional customer service Our goal is to make the process straightforward, transparent, and stress-free while delivering results that exceed expectations. We are proud of our reputation and are happy to provide references from previous clients upon request. Get in touch today to discuss your project and see how Maksmith Ltd can help bring your vision to life.
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Latest review:
Conversions - General- 1 Nov 2026
Definitely recommend;very professional and committed.
JK Habitat Ltd
No reviews yet
Extension Builder in Bexley
Design and Build specialists providing planning assistance and construction till completion. Architectural planning / Bathroom / extensions and general building designs and installation
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4.2

Top rated Extension Builders

Our Extension Builders in Bexley, 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 Bexley?

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 Bexley 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 Bexley who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Bexley?

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

Find extension builders in Bexley with MyBuilder

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

Step 2: Compare different extension builders in Bexley

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

Step 3: Hire Bexley extension builders with confidence

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

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

What to ask a Bexley extension builder before hiring?

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

An extension builder in Bexley 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 Bexley 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 Bexley?

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 Bexley 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 Bexley 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 Bexley

Can an extension builder in Bexley help with planning permission?

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

Many Bexley 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 Bexley help with materials and finishes?

Yes, most extension builders in Bexley 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.