Extension Builders in Westerham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (17 reviews)

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Some of our top rated extension builders in Westerham

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Extension Builder in Westerham
A company providing construction services ranging from small maintenance works right through to refurbishment and new builds.
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Bren Building and Renovations
Rating: 5 out of 5
Extension Builder in Westerham
Hi my name is Ben and I am new to my builder. I have been in the building trade for 13 years and I am a qualified level 2 carpenter. I also undertake many other aspects of the building trade such as kitchen and bathroom fitting, tiling, fencing, decking etc. I am a trusting, clean tidy worker and strive to give the best possible service as I can. All jobs are undertaken no matter how big or small.
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Latest review:
Fencing- 20 Apr 2020
Ben turned up when he said he would, was very obliging, took all broken fencing away. Will definitely use him again when necessary
Marcus’s maintenance
No reviews yet
Extension Builder in Westerham
A local handyman in the Croydon area who does basic plumbing repairs electrical socket pendant repairs painting and decorating lock changes
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Jm building & restoration
Rating: 5 out of 5
Extension Builder in Westerham
I'm Joe I've been doing re-pointing, restoration and general building works for over 10 years now. I've always worked within the construction industry but in recent years I've mainly been based within house building and extensions starting from groundworks to roofing.
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Latest review:
Bricklaying- 31 May 2020
Highly recommend. Very pleased with his workmanship. Neat, to time and professional.
Kapa International
No reviews yet
Extension Builder in Westerham
kapa loft and extension has been providing the best services to south London and surrounding areas since 2017. We are a new business with builders has 12 years of experience in construction business. Fair prices, superior quality and exceptional customer service are guaranteed when you work with us.
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Trojanconstruction
No reviews yet
Extension Builder in Westerham
Trojanconstruction is a family run firm building extensions and undertakeing everything from garde ing work 2 full house refurbishments i have a very skilled and experianced team at your service
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Drax Homes ltd
Rating: 5 out of 5
Extension Builder in Westerham
We are the building company based in SW London. We have started the business in 2001 and since then we finished a lot of projects around SW London (mainly in Wimbledon) and other parts of London within M25 area and Surrey. Our goal is to deliver the best possible service and best quality using the best materials available on the UK market. We are experts in converting and refurbishing of Edwardian, Victorian, Art and craft and Modern houses.
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Latest review:
Michael was responsible for organising and overseeing my self build project, including the demolition of the old house and site preparation. The new detached house is approximately 5000 square ft over four floors including a basement. Michael's diligence, professionalism and reliability were exceptional. I have also used Michael on other small projects and have been equally impressed. Above all, i have found him very trustworthy. I would happily discuss the projects he has been involved with anyone considering offering Michael a project to carry out.
MD Builder
Rating: 5 out of 5
Extension Builder in Westerham
4 years expirance of all aspects of building
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Latest review:
Carpentry- 6 Jun 2026
Work was excellent and left room very tidy. Would have again if I need any new work.
Lee Constructions
Rating: 5 out of 5
Extension Builder in Westerham
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:
Driveways (Paved & Loose)- 6 Jun 2026
Would recommend Lee Constructions, and we are already planning to have him back! We were very happy with the repair work done to our drive. Martin is a hard worker and very reliable.
O G Electrical
Rating: 5 out of 5
Extension Builder in Westerham
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
BS
Rating: 4.8 out of 5
Extension Builder in Westerham
Our company specialises in the design and installation of custom and high-quality loft conversions and house extensions across London and the M25. While offering a personalised service, we bring the skills and experience required to ensure your loft conversion is completed to the highest standard and agreed timeline. Whether you are looking to add value to your property or create more space, our team will handle everything from planning permission to architectural design and construction
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Latest review:
Extensions- 31 Aug 2024
BS Loft Conversions are reliable, honest and operate with integrity. I recommend them to anyone who is looking for some building work whether they are big or small projects. They arrive on time, work hard and leave the site clean and tidy. Anxehlo always takes the time to answer any questions we may have and talks us through the process before providing us with all the options available from repair, replacement or re-instatement. As a novice to a huge development, it was difficult to find builders you can trust but, Anxhelo made that process easier, restoring our faith in construction work.
alpha green construction
Rating: 5 out of 5
Extension Builder in Westerham
I have 25 years experience in the trade.specialise in innovation and reliability. Trade built company generally around masonry , roofing and all other structural undertakings. We specialise in loft conversions and house extensions , masonry and landscape gardening. We also provide design and build schemes for the above topics.
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Latest review:
Extensions- 14 May 2019
We love Berry, he has followed our project from the beginning to the end and he has been there all the steps of the way. He listened to our ideas and enriched them with more of his adding his special attention to details skills. For every problem, we had along the way he talked to us making sure we were happy with alternative solutions. Plus he is able to create a friendly working environment which makes the invasion of your house less intrusive, he has been very respectful of our space. We can genuinely say that he has gone beyond our expectations, and will be very happy to do future works with him. Luca and Nick
All Aspects Group Ltd
Rating: 5 out of 5
Extension Builder in Westerham
All Aspects Construction is a multi-disciplinary contractor who specialise in the construction, refurbishment and maintenance of commercial and domestic buildings. We focus on delivering the very best craftsmanship in all services delivered and a quality end product through sustainable construction all within an approachable and professional manner.
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Latest review:
Painting & Decorating- 30 Apr 2019
Thoroughly recommend this Company, very professional, industrious, thorough, and exceptionally helpful, left the working areas clean and tidy, definitely value for money, delighted with the job of work carried out.
Design and build Kent LTD
No reviews yet
Extension Builder in Westerham
Design and Build Kent . Fully insured building company with a number of approved trades, working project managers including myself. All jobs insured, customer reviews on website Look forward to helping and quoting your project.
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RQ Brickwork
Rating: 5 out of 5
Extension Builder in Westerham
bricklayer, undertake new builds, extensions ,garden walls stone work and repointing
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Latest review:
Bricklaying- 21 Jul 2025
Really nice guy to deal with. Job was done on time, looks good. I will definitely work with him again and would recommend.
B.S.Contractors
No reviews yet
Extension Builder in Westerham
I'm Mechanical Technician by trade but working in construction industry 26 years. I used to do many aspects of building mostly in residential part of construction industry. I succesfuly run loft conversions company between 2003 and 2006.I work myself and I cooperate with other small traders like plumbers and electricians. I mostly do myself structural works, carpentry and joinery, tiling, and roofing. I do complete jobts from structural works to painting and decorating etc.
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3.8

Top rated Extension Builders

Our Extension Builders in Westerham, are rated 3.8 out of 5 based on 17 reviews from customers like you.

Quality screening

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What types of services are offered by local extension builders in Westerham?

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

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

What are the hourly rates of extension builders in Westerham?

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

Find extension builders in Westerham with MyBuilder

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

Step 2: Compare different extension builders in Westerham

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

Step 3: Hire Westerham extension builders with confidence

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

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

What to ask a Westerham extension builder before hiring?

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

An extension builder in Westerham 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 Westerham 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 Westerham?

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 Westerham 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 Westerham 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 Westerham

Can an extension builder in Westerham help with planning permission?

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

Many Westerham 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 Westerham help with materials and finishes?

Yes, most extension builders in Westerham 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.