Extension Builders in Sevenoaks

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.5 (13 reviews)

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Some of our top rated extension builders in Sevenoaks

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Oak Grove Contractors Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Oak Grove Contractors are an established construction company based in Sevenoaks. We specialise in all forms of carpentry, brickwork, roofing, landscaping, groundworks, painting and decorating, and kitchen and bathroom installations. We offer anything from small jobs to full design and build extensions, loft conversions, and new builds. All jobs are considered and we quote free of charge. Fully insured with many recommendations from pleased clients.
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Latest review:
Joinery & Cabinet Making- 22 May 2024
Fast, reliable carpentry. Built our reception desk quickly and on budget. Very Happy.
Infinity Kitchens Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
We are a dependable, locally based company offering a personalised and friendly service to homeowners and landlords at an affordable price while offering the very highest standard of workmanship from start to finish.
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Latest review:
Extensions- 23 Feb 2024
I’m literally blown away by this team of guys. Professional from start to finish. Danny quoted promptly in the timeframe he promised after he viewed the project. He was clear about what he could deliver with the budget that I had and made suggestions using his knowledge that helped me achieve the dream garden room that I have always wanted. His team turned up at 8am sharp and work started at 8.01 every morning. It’s clear that Danny surrounds himself with professionals that he can trust to execute his promise and deliver the quality he expects, and that his clients pay for. Another plus is that he was extremely accommodating to some changes that I asked of him during the build which he also didn’t charge for. Nothing was an issue to this man and he clearly operates a “client first” attitude which was apparent also when he visited every second day to check progress and quality. Lastly which is also something that I didn’t expect is that he had the extra materials that were not used collected and credited to the final bill. If I had more time I could go on all evening but my final words are. Look no further. With Danny you have found an honest professional business man that takes pride in his work and I am happy that I found him and his team. Good luck with your project.
HARDSCAPE
Rating: 5 out of 5
Extension Builder in Sevenoaks
I CARRY OUT HIGH STANDARD OF WORK, SMALL EXTENSIONS, LARGE LANDSCAPE PROJECTS. ALL WORKS FROM RECOMMENDATIONS
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Latest review:
Landscaping- 21 Feb 2025
The job went really well. Doug is very knowledgeable, friendly and hard working. Doug really listened to what I wanted to get out of my project and brought it to life, making sure to pay attention to the small details. I highly recommend Hardscape and would happily use them for any future jobs.
Above and beyond building services ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
We are a building services company that provides high quality work. we go above and beyond for all our clients, no job to big no job to small. We pride ourselves on customers satisfaction.
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Latest review:
Carpentry- 6 Jun 2021
Billy quoted and finished the job within a week and at a very reasonable price. The work was done to a high quality and everything left tidy. Wouldn’t hesitate to recommend!!
LD Carpentry LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
Experienced team of Carpenter’s able to carry out every aspect of carpentry. All structural and finishing work undertaken. Honest and reliable and eager to help.
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Latest review:
Carpentry- 19 Jun 2017
Luke and his profession and friendly team were great. He is a very decent guy. Reasonable, honest, hard working and with a perfect finish. The job we hired him and his team was high end and to a very demanding spec and timeframe. Yes he met our budget, shedule and we are delighted with the quality of his work. Absolutely no hestitstion at all in recommending Luke to others. Nice work.
Edge Developments Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Builders with a passion for perfection. Remodelling, renovations, conversions, extensions. Tunbridge Wells, Kent and SE London.
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Latest review:
Carpentry- 2 May 2019
We initially hired Derek to build 2 shelves but ended up using him for so much more (plaster boarding, floor laying, hanging and re-sizing doors). He was quick to respond to the first ad, incredibly reasonably priced, a very friendly and helpful chap and communications were ongoing as we gave him more and more work to do. Work all completed to a high standard with Derek giving advice and guidance along the way. We will definitely be getting him back to do more in the future and I can't recommend him enough!
R&P Bespoke Construction LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
General building, Loft conversion,Extension
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Latest review:
Roofing (Flat)- 22 Nov 2020
Peter and Rob were great, they reached out very quickly to arrange a meeting to see the work which another builder had completed messed up. They were able to present a reasonably priced quote soon after and completed the work in just one day working solidly from 9am to gone 4pm on a Saturday. The quality of the work was very good and they tidied up after themselves. Would definitely recommend their services and in fact we are engaging with them again on a few more jobs around the house.
Safe as Houses
Rating: 5 out of 5
Extension Builder in Sevenoaks
Safe as houses in Sevenoaks. At Safe as Houses we not only pride ourselves on the quality of our work, but the honesty and integrity that we conduct business with. The company ethos is built upon customer satisfaction and delivering fully to customer requirements during any project.
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Latest review:
The work was to install, make space and fit a gas fire. Mike and his team were friendly, informative and honest. They stuck to their quote, they gave me honest feedback and were very reliable and delivered a high level of workmanship. Would definitely recommend and will definitely be using them again.
SGW CARPENTRY AND CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Sevenoaks
SGW carpentry and construction provide a great professional service to all customers. Providing all first fix and second fix carpentry as well covering all forms of construction services. A business looking to grow and focused on providing a good standard of work and service to all our customers.
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Rose tinted interiors
Rating: 5 out of 5
Extension Builder in Sevenoaks
Hi, I’m Chantelle. I run a trusted, family-owned building and maintenance business focused on making property care simple, stress-free, and reliable. While we’re new to this platform and don’t yet have reviews here, our experience isn’t new—our team brings years of hands-on, fully qualified experience across all aspects of property maintenance. We specialise in carpentry and joinery, delivering high-quality workmanship and attention to detail, but our skills extend far beyond that. From small repairs to larger projects, we’re known for clear communication, dependable service, and treating every property as if it were our own. If you’re looking for a professional, honest, and capable team you can trust from day one, we’d love the opportunity to earn your business and your first review.
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Latest review:
Carpentry- 17 May 2026
Timber door repair professionally undertaken. Very neat work and tidy afterwards . Polite and friendly contractor. They acommodated my change of date without fuss. Great communication. Happy with the price. I recommend and will use them again.
Summerhill Homes Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
I have been operating in the building industry for more than 25 years, We have covered every aspects of works from new builds to complete refurbishments from start to finish with fully qualified trades to achieve the highest quality, From the smallest to the biggest job undertaken , Our motto is nothing is impossible to achieve a stress free project to costumer satisfaction ,Please check my web site for more information
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Latest review:
Extensions- 3 Sep 2021
did loft extension.with shower room. further extension, family room with bifolds, rewire, patio and so much more. its fantastic
Dent Design and Construction LTD
Rating: 4.8 out of 5
Extension Builder in Sevenoaks
With over 25 years experience, I have an extensive knowledge of all aspects of residential building. From groundwork to roofing and most things in between. Over the years I have completed hundreds of projects, ranging from relatively small, such as a bathroom refit, to complete renovation and extensions. Between myself, my employees and subcontractors, we cover almost all aspects and trades and can complete almost any project.
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Latest review:
Carpentry- 9 Oct 2024
Jason & Angus gave me a reasonable quote to fit 3 internal doors and 1 external. They spent the best part of the first day smoking out the front & chatting (not sure if they could see me watching on my cctv) anyway they started to slowly get the work done. Jason said he made a mistake by fitting one of the glazed doors instead of one of the solid ones in the lounge. Had to order another door which costed an extra £110. He fitted another internal door back to front then had to come back to change it as it was a hazard sticking out in the middle of the room which left holes and damaged the framework. The work took an extra 2 days longer than expected which was annoying but I just wanted the work finished. 3 days after he left we discovered that we could not shut the external back door as he hadn’t left any room for the door to expand and one of the internal doors is hanging off as he drilled big holes in it so I now have to buy another and pay someone to fit it! Cowboy builders!
BCG Carpentry
Rating: 5 out of 5
Extension Builder in Sevenoaks
I am a fully qulilafied NVQ level 3 carpenter, i offer a wide range of services mainly carpentry from pitching roofs, joisting, kitchens, skirting and hanging doors. Also new builds, refurbs and extensions. I've been in the trade for more than 10 years so have quite a range of experience.
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Latest review:
Carpentry- 9 May 2019
Ben did a very professional job hanging four internal doors. He arrived at the time we agreed and cleaned up thoroughly. I will definitely ask him back to do other work and would certainly recommend him.
TAA Construction Services Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Our mission at Taa construction services is to provide our clients with exceptional construction services that exceed their expectations. We are committed to delivering high-quality workmanship, on-time completion, and cost-effective solutions. We believe in honesty, integrity, and transparency in all our dealings with our clients. We value teamwork, professionalism, and continuously building great relationships . We have completed numerous projects, from small wall rebuilds & repairs to large residential new build construction. Our clients range from privately owned residential & commercial customers, housing associations, councils & larger scale main contractors.
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Latest review:
Bricklaying- 12 Aug 2025
I cannot thank you enough, Tarek. Your staff were exceptionally professional, your response was incredibly quick, and your communication was exceptionally clear. This is what I call true professionalism. I will definitely be using your services again and highly recommend you. Rezz
Callum
Rating: 4 out of 5
Extension Builder in Sevenoaks
Bestofbuilders Ltd are a small busines that have been around since 2022. We offer quality works and take the work we do seriously with a professional attitude. We offer arrange of exterior works from drive_ways paving, landscaping, turfing, artificial grass, brick work, decking, fencing, drainage, cladding, roofing gutters. For the interior we offer,Tiles, kittchen fiting, paint&decorateing flooring from carpet to lino and loft insulation.
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Latest review:
Driveways (Paved & Loose)- 11 Mar 2025
Friendly with Good communication, set a price and stuck too it despite running into an unforeseen problem. Job completed on time.
Osolo Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Experience the Exceptional We are a reliable building company delivering high-quality workmanship across all aspects of construction and project management. With years of hands-on experience, we specialise in new roofs, extensions, conversions, garden rooms and general building work. Our team is committed to providing honest advice, competitive pricing and a clean, professional finish on every project, no matter the size.
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Latest review:
Bricklaying- 6 Jun 2026
Absolutely fantastic service from start to finish! The team demolished our fallen garage and built a brand-new one to an excellent standard. Communication was brilliant throughout the entire process, keeping us informed every step of the way, and the turnaround time was much quicker than we expected. Everyone we dealt with was friendly, professional, and always happy to answer any questions. The workmanship is outstanding, and we're extremely pleased with the finished result. I wouldn't hesitate to recommend them to anyone looking for a reliable and professional company. A big thank you to Teresa, Jason and the team. Thank you for a job well done!

3.5

Top rated Extension Builders

Our Extension Builders in Sevenoaks, are rated 3.5 out of 5 based on 13 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Sevenoaks?

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

Find extension builders in Sevenoaks with MyBuilder

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

Step 2: Compare different extension builders in Sevenoaks

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

Step 3: Hire Sevenoaks extension builders with confidence

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

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

What to ask a Sevenoaks extension builder before hiring?

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

An extension builder in Sevenoaks 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 Sevenoaks 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 Sevenoaks?

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 Sevenoaks 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 Sevenoaks 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 Sevenoaks

Can an extension builder in Sevenoaks help with planning permission?

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

Many Sevenoaks 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 Sevenoaks help with materials and finishes?

Yes, most extension builders in Sevenoaks 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.