Extension Builders in Chislehurst

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 Chislehurst

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GS&M Construction
Rating: 5 out of 5
Extension Builder in Chislehurst
GS&M Construction is a solid family run business. we are reputable long standing building contractor. We are Reliable, Conscientious & Personable builders working in london & the south east offering a value for money service.
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Latest review:
Sean plastered my front room ceiling. He was tidy, punctual, cleaned up after himself each day, very polite, friendly and well mannered, and the job was at a decent price. I am very happy with the work - the fact that he cleaned up - I appreciated. I would highly recommend him.
Dream Home Builder
Rating: 5 out of 5
Extension Builder in Chislehurst
My name is Leandro, I have 20 years of experience in construction industry in Europe and here in UK for 10. I don't mind in taking small handyman work or a full refurbishment of your house with a competitive price and high standard in quality and will be more than happy in help you with the maintenance of your home. We have worked in diverses range of projects applying skill and quality in every work. Thanks to read this small introduction.
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Latest review:
Tiling- 3 May 2019
Excellent communication from Leandro. He's a really tidy worker and has done a great job installing a splashback in our kitchen - would wholeheartedly recommend him to anyone
NEW LOOK TRADERS LTD
Rating: 5 out of 5
Extension Builder in Chislehurst
New Look Traders is a company offering a complete building solutions. Our work ranges from small refurbishment projects to bigger scale house extensions and loft conversion. Our team consists of experienced tradesmen off all areas, whose dedication and commitment allows us to deliver high quality work.
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Latest review:
Restoration & Refurbishment- 5 Apr 2025
Where do I begin? So Alex and his team has pretty much renovated two flats including external work such as roofing. The work involved was quite challenging as the building has a lot of damp / mould / leaking issues. Alex’s attitude towards resolving every matter was exemplary. He would take his time to explain his strategy to tackle each and every problem in a very metholodical way. I have never seen anything like it. I am so pleased with Alex’s work and so are my tenants who live in the flats. I would highly recommend Alex, especially for tougher jobs!
Simms building and civil engineering LTD
Rating: 5 out of 5
Extension Builder in Chislehurst
The business offers a range of services from small groundwork and foundation work, to full domestic extension construction projects and civil engineering works. I am a chartered civil engineer, with the Institution of Civil Engineers (membership number 51967168), with 17 years experience in the construction industry.
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Latest review:
Extensions- 12 Mar 2018
Nick brought many skills and talent to his work. He was polite and punctual and worked hard to get the job done as quick as he could. He and his team were professional and worked well together especially working through the challenges we all faced. His work ethic is second to none and he always remained considereate to my neighbours and I.
IVP FastyMan
Rating: 5 out of 5
Extension Builder in Chislehurst
✅ Fully insured Looking for a Builder you can trust? I provide professional home maintenance services with a personal touch. Whether it’s plumbing, painting, or general repairs, my work comes with a guarantee for your peace of mind. Get in touch today for quality service you can count on!
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Latest review:
Carpentry- 12 Dec 2025
Fast, efficient neat & helpful
Z&V PROPERTIES LIMITED
Rating: 5 out of 5
Extension Builder in Chislehurst
I have been working in this industry for 30 years. I have moved to London just about 8years ago. I`v been working as carpenter, builder site and rebuild house is out side and inside as well. Because my English language is not the best i have my little helper my son. Also he is working with me as well. He can take part in the same jobs as me .
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Latest review:
Carpentry- 2 Apr 2025
Zoltan did a great job of fitting my fire doors.
SIA Design Build Limited
Rating: 5 out of 5
Extension Builder in Chislehurst
We are a design build firm with over 14 years experience in the construction and architecture sector. We both have masters in architecture and are capable of assisting with all aspects of services. We have worked on over 40 residential projects in London since opening and our general laborers and tradesmen have been working for us for several years running. We typically work on extensions and loft conversions but have also done a cafe and champagne bar fit-out.
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Latest review:
Extensions- 18 Aug 2020
He was very helpful and transparent of the cost
JKDunbarltd
Rating: 5 out of 5
Extension Builder in Chislehurst
A family run construction company looking to expand through my builder, we cover all aspects of building Including extensions, renovations and refurbishments, plastering, brickwork, landscaping, decorating, groundwork’s.
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Latest review:
Extensions- 11 Nov 2024
Really positive experience working with Jamie and his team. Our building project was a single story 3m x 5m kitchen/living extension for a 1920’s London terrace house, with access to the garden only available through the house. From the start during the initial home visit survey and quotation, Jamie was 1) excellent at communicating; 2) transparent about costs and 3) proposing very good options (e.g. 2m x 1m skylight) which looks fantastic! The job included digging foundations by hand and very good awareness of the extra precautions when doing work in an old period property. The job was completed on schedule and on our budget and we are very pleased with the finished extension. 100% would recommend for anyone looking for similar type of project. Cheers.
Clarke's Design & Build Limited
Rating: 5 out of 5
Extension Builder in Chislehurst
Flawless Finishes - look right here! Clarke's Design and Build are general contractors based in London, serving both the London and surrounding areas of the United Kingdom. Clarke's Design and Build focuses on tailor made home design, residential / commercial renovations and aim to use sustainable, environmentally friendly resources. We specialise in design, extensions, interior/exterior upgrades and aspire to turn challenges into solutions, plans into useful creative spaces.
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Latest review:
Carpentry- 22 May 2024
Great work from Leslie! On time, friendly, accommodating of all my questions and paid attention to all the details. Thank you Leslie.
O G Electrical
Rating: 5 out of 5
Extension Builder in Chislehurst
O G electrical is based in Belvedere and Part P registered with Napit and the Electric safety register. All electrical work undertaken, with 25 years knowledge and experience. Re wires , fuseboards , under floor heating , Cctv , lighting , fire alarms , garden and drive lights,commercial fit outs, 3 phase, extract fans all Electrical installs carried out. Installations to new build houses/apartments throughout London and Kent Inspection and testing Eicrs All work guaranteed.
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Latest review:
Electrical- 1 Dec 2020
Olly was cheerful even though confronted with an ancient wiring system and a difficult problem. He came back for a second day and sorted it. There was a callback which he sorted quickly and without complaint
House2Home
Rating: 5 out of 5
Extension Builder in Chislehurst
House to Home Atelier is a local building company based in Abbey Wood, South East London. We specialise in end-to-end home renovations and construction, from initial design and planning to final finishes. Our team delivers loft conversions, house extensions, full refurbishments, bathrooms, kitchens, and bespoke interior solutions, always with a focus on quality, efficiency, and maximising space. We combine traditional craftsmanship with modern solutions, ensuring every project is completed on time, on budget, and to the highest standards. With our experience and carefully selected team of skilled tradespeople, we take care of everything from structural work and plumbing to carpentry, plastering, and finishing touches. We are local, accountable, and hands-on, so you always know who is managing your project. Your home is your investment, and we treat it as our own. Whether it’s a small repair or a full-scale renovation, we deliver solutions that maximise space, enhance character, and provide lasting quality.
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Latest review:
Works consisted of hip to gable loft conversion under permitted development and a refurbishment of the first floor of a semi-detached house into a four bedroom/bathroom layout, including new windows, balconies, wiring and plumbing as well as sound proofing the walls. With 100m2 of works this was my first introduction to a major building project and I was worried by the horror stories I have heard about builders. From the outset Monika set my mind at rest, listening to what I wanted, making helpful suggestions, offering tips for instance on how to save on the scaffolding and always asking me when choices needed to be made. She took the trouble to ensure that I knew what was happening, with daily photos of progress without the need for me to climb scaffolding. I was working to a tight timescale and budget, which Monika understood, and even having accommodated a number of changes including some additions, the project came in on time and on budget. All of the workers on the site were very professional and the quality of the work and the attention to detail was exceptional. I have no hesitation in recommending Monika and her team - I went into this project apprehensive and not sure what to expect; thanks to Monika, I came out the other side delighted by and looking forward to working with her and her team again to renovate my ground floor.
Patrick Halton
Rating: 5 out of 5
Extension Builder in Chislehurst
I am a bricklayer by trade but I can undertake extensions and any type of house renovations too. I have been in the building industry for 36 years.
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Latest review:
Bricklaying- 26 Jul 2018
Very professional in all ways neat work. Quite friendly Plain and honest.
O.Poole Carpentry
Rating: 5 out of 5
Extension Builder in Chislehurst
O.Poole Carpentry (O.P.C) carry out all aspects of carpentry and construction, from small installations work such as timber stud walls and fire doors, to larger scale works such as complete refurbs of kitchens and extensions. O.Poole Carpentry is based in Kent. Currently with 7 years+ experience, along with being Level 3 Carpentry qualified. O.P.C has worked in both new build and common domestic work areas therefore O.P.C has a vast knowledge of what work is needed to achieve your vision.
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Latest review:
Ollie was very professional, performed excellent craftsmanship fitting my worktops, would be happy to use Ollie again in future anymore for carpentry related works.
DR PROGRESSIVE BUILDING LTD
Rating: 5 out of 5
Extension Builder in Chislehurst
We are reliable and friendly company for domestic and commercial projects. We can undertake all aspects of building including new builds, extensions and loft conversions, house refurbish, fitting kitchens and bathrooms and a whole range of larger home improvements. Our aim is to deliver a high quality of service that meets your needs and your budget.
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Latest review:
Kitchen Fitting- 27 Feb 2026
Worked really hard and did a great job. Would recommend Darek for any refurb job.
professional polish builder(london)
Rating: 5 out of 5
Extension Builder in Chislehurst
I'm a builder (carpenter) with 19 years of experience in England. I do loft conversions and extensions - all building works. Carpentry and joinery is my main profession. I have a qualified bricklayer, electrician, plumber and others on my team who are happy to help. All works done by us coming with warranty and insurance.Dear potential client beware that we do not undertake structural building works without architectural drawings, structural engineer calculations etc. No time wasters please!
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Latest review:
Extensions- 26 Apr 2018
Professional Polish builders (london) ltd,?this is a suitable name for this company. They built an extension and loft for me in the time standards set. They aren’t a cheap service but the professionalism of this boys goes beyond and above. I’ve seen a lot in my life and it was the third extension I designed for myself as I’m architect. It is hard to find an honest builder who will tell you the truth about what is waiting for you during the works. The job was done relatively quickly even when I changed my mind a few times and the weather this winter was cruel but Adam and Martin were always positive so do not believe any one who gives a fixed price and time - it’s impossible to do. Adam and Martin are fantastic organizers and skillful professional builders, his team are friendly,very funny and hard working guys. Open minded guys who will tell you straight on what things you can save money on and what not to. My dog has fallen in love with them. Safety and common sense is a priority to the crew. I would recommend these boys to everyone. thanks for your help and hard work!
JSCrudden building &construction
Rating: 5 out of 5
Extension Builder in Chislehurst
JSCrudden has been in the building trade since 1973 and has been trading since 1983 I undertake all types of building work extensions— conversion’s — kitchens—bathrooms etc I am city & guilds qualified
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Latest review:
Bathroom Fitting- 3 Jun 2024
Steve gave an excellent assessment of the job, was straightforward and helpful. Kept me updated regularly and used his experience to tackle the challenges of the job. Thanks Steve.

3.9

Top rated Extension Builders

Our Extension Builders in Chislehurst, 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 Chislehurst?

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

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

What are the hourly rates of extension builders in Chislehurst?

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

Find extension builders in Chislehurst with MyBuilder

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

Step 2: Compare different extension builders in Chislehurst

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

Step 3: Hire Chislehurst extension builders with confidence

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

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

What to ask a Chislehurst extension builder before hiring?

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

An extension builder in Chislehurst 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 Chislehurst 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 Chislehurst?

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 Chislehurst 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 Chislehurst 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 Chislehurst

Can an extension builder in Chislehurst help with planning permission?

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

Many Chislehurst 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 Chislehurst help with materials and finishes?

Yes, most extension builders in Chislehurst 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.