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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Grandiose Construction ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Grandiose Construction ltd is a registered member of the Federation of master builders and we are a qualified insured and trustworthy property builder/developer. Our expertise varies from new builds/extensions to bedroom, kitchen, bathroom remodelling and gardening. With over 15 years work experience, during which I ran a team of Trades for lots of luxury home Developers in London.This background has enabled me to develop steps and sequences to carefully create your desired project.
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Latest review:
Kitchen Fitting- 1 Mar 2025
Ade is good man, he's very punctual, quality of work is commendable. Thank you Ade.
ARdesignconstruction
Rating: 4.2 out of 5
Extension Builder in Sevenoaks
Just recently registered on My builder and trying to provide my services to private clients. First locally hired job taken, hopefully the client will be full satisfied and gives us good feedback at the end :) My services reasonably priced, if you wish to deal with professionals look no further. Construction, Renovation, Extensions, Refurbishment, Property maintenance. Decades of experience in UK and abroad. Reliable, Punctual, Attention to details.
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Latest review:
Carpentry- 18 Dec 2021
Very unprofessional! Did not finish the job and promised to come back to finish it but never did. Has been ignoring my calls ever since. I will not recommend him at all to anyone!
OGC LANDSCAPING LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
Welcome to OGC Landscaping, I'm based in South East London/ Kent and have experience in landscaping and general handyman work, I pride myself on my work and always strive to deliver the best customer service, I treat your home as if it was my own and I am honest, friendly and very reliable, please take the time to have a look at my work and the finished job can really transform your home or garden. I provide free estimates and helpful friendly advice. Here are some of the services I offer and look forward to hearing from you. Services Indoor/Outdoor Landscaping and groundworks Turfing Brickwork Shed bases Decking Hard landscaping Garden design Summer house design & construction Garden sheds Sleepers Flower beds Tree planting Soft landscaping I'm happy to offer a flexible service at a time that suits you, please don't hesitate to get in touch. If for any reason you are unable to contact me send me a text and ill get back to you as soon as possible. Many thanks Oliver
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Latest review:
Landscaping- 5 Oct 2025
Amazing work and communication
Sterling maintenance solutions ltd
No reviews yet
Extension Builder in Sevenoaks
Sterling Maintenance Solutions Ltd is a newly established, family run maintenance provider with a wealth of experience in the building trade. We strive for the highest standard of work at reasonable prices. Whether it’s an extension to a small handyman job, we can do it all. We are a one stop shop for your every need.
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Simms building and civil engineering LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
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.
PH Builders
Rating: 5 out of 5
Extension Builder in Sevenoaks
Bricklaying and general building services , covering new builds , extensions , restorations , alterations and maintenance with over 35 years experience.
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Latest review:
Bricklaying- 1 Sep 2020
Paul,carried out the work efficiently, to a high standard. His building knowledge and ideas improved the final outcome. I would recommend Paul.
ASA BUILD LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
All kind of concrete work , driveway with concrete stamping, underpinning and basement , ground work and deep drainage block drainage, diamond drilling, foundation digging ,new builds ,side extension
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Latest review:
Demolition- 20 Mar 2025
EXCELLENT!10/10 👏
UKPC CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Sevenoaks
Based in London, UKPC Construction delivers high-quality building services with a personal touch. We specialise in full house refurbishments, renovations, loft conversions, and structural alterations. With a skilled and reliable team, we take pride in offering tailored solutions to suit different needs and budgets—without compromising on craftsmanship or attention to detail. At the core of our work are trust, reliability, and a strong commitment to client satisfaction.
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Latest review:
UKPC Construction is by far the best company I have ever worked with, and I highly recommend them to anyone. Their team is not only courteous and professional but also a breeze to work with. They expertly helped me transform my jungle-like garden, and although I'm writing this review after some time, I'm now looking forward to discussing the extension project they initially designed with me. A big thank you to UKPCC, and I wholeheartedly endorse their services to everyone.
Albatross Construction
Rating: 5 out of 5
Extension Builder in Sevenoaks
We are a small builder and groundwork company based in South Croydon, with over 30 years building extensions and groundwork experience. Having completed many extensions localy and various groundwork projects. We have all our own plant and machinery which keeps us price competitive and never ask for money up front (unlike some other builders) Our service comes with fully compressive building all risk insurance and all work undertaken is guaranteed References are available on request
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Latest review:
Groundwork & Foundations- 26 Feb 2025
I hired John to build a concrete base for a garden building installation and he did a great job, resulting in follow-on work for him laying a new Indian sandstone patio in front of the building, which he also did to a high standard. After receiving several quotes from different firms, I selected John because he asked the right questions, clearly thought about the solution and was interested in ensuring the result was the right one right for me. He's a lovely bloke and a pleasure to have working here. He works on his own and for the most part keeps himself to himself, wasn't fussed about tweaking the scope here or there as the plan developed and kept the place pretty tidy throughout. I will be using him again for sure, so I wholeheartedly recommend John for any work you're considering hiring him for.
Painting company
Rating: 5 out of 5
Extension Builder in Sevenoaks
🔨 Painter & Builder Pro | Decorating & Construction Services Experienced and reliable builder offering a full range of services: ✔️ Painting & Decorating (interior & exterior) ✔️ Plastering & Drywall ✔️ Tiling & Flooring ✔️ Kitchen & Bathroom Renovations ✔️ General Construction & Repairs ✔️ Clean, professional finish every time ✅ Free Quotes ✅ Fully Equipped ✅ On time & Budget ✅ Friendly, Skilled Team Whether it’s one room or a full house, we handle all types of jobs — big or small. 📞 Contact us today and let’s bring your vision to life!
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Latest review:
Painting & Decorating- 11 Jun 2026
Liman done excellent job to complete our project. It is a big project and needs lots attention to details . He guided us through since buying the paints and completed the job with perfection. He was professional throughout and did the job in timely manner. Highly recommended. Thank you.
Izmy Construction Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
Small construction company with over 30 years experience, taking on all aspects of work. We take pride in all our works with excellent work ethic throughout.
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Latest review:
Bricklaying- 16 Dec 2021
I'm very pleased with the repair that Jack carried out on my garden wall. Even though it was a small job he took the time to do it properly and ensured the bricks that had fallen down were put back straight. It started raining a little on the day causing the cement to run. Jack returned a couple of days later to tidy it up like he said he would. On inspecting the wall today I noticed that the cement on the bricks on the inside of the wall did not look as neat as how it looks on the outside of the wall. Maybe the rain caused the cement to run too much, I don't know. Overall I am pleased though and I've asked Jack to quote for another job.
Making Rooms Ltd
Rating: 5 out of 5
Extension Builder in Sevenoaks
We are a south London-based building firm that specialises in breathing new life into homes. We work closely with our clients,alongside visionary architects, engineers and designers to unleash potential in their house and realise new and improved spaces. Whether your house requires expansion,our team of specialists work tirelessly to deliver the perfect home for you. Making Rooms are a group of passionate and multitalented individuals whose soul mission is to make your living spaces better.
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Latest review:
Extensions- 25 Jul 2024
Garden Room done to ridiculous standard. See pics. 5 star work from the lads.
SEVENOAKS BUILDING SERVICES
No reviews yet
Extension Builder in Sevenoaks
Our family run business, here at SBS Sevenoaks Buildings Services, we specialize in turning your vision into reality with expert craftsmanship and attention to detail. Whether it's residential, commercial, or custom construction projects, our team is dedicated to delivering high-quality results on time and within budget. From the ground up, we focus on building lasting relationships with our clients, ensuring their complete satisfaction every step of the way. From loft conversions, roofing, kitchens, bathrooms and cinema rooms to landscaping, garden rooms, patios and extensions. Trust us to handle your next project with the professionalism, reliability, and expertise that sets us apart in the industry. Let's build something great together!
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Mulldec Construction ltd
Rating: 4.9 out of 5
Extension Builder in Sevenoaks
Hi ,we have been working in construction for 29 years now and have worked on all types of projects, commercial and residential. Our works range from extensions, decking, garden offices, foundations, fencing, drainage and a full host of construction works, fully insured . We take pride in our works and guarantee all our works . Please contact us for a friendly, free quotation for any external works and any advice needed. Thanks, Declan
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Latest review:
Extensions- 1 Nov 2022
A+++ would highly recommend Declan, Colin and team were brilliant, professional from start to finish, always talking through options which was a great help. Friendly, reliable, good time keeping, trustworthy, felt very comfortable having them in my house for 8 weeks. I called Declan about a little snag and he came the same day to sort it out and was very happy to do so. Extension looks great I'm very happy with everything. Would definitely hire them for any future works.
Jk homes kent ltd
No reviews yet
Extension Builder in Sevenoaks
Award Winning House Builders based in Tonbridge, working throughout Kent and the South East offering the 'Full Service' including full project management for every client. Our experienced team ensure all works are carried out with meticulous attention to detail. All projects will be managed by our team of experts. We have over 17 years' experience in the construction industry. Our new homes warranty protects against any structural defects which may occur in the first 10 years, giving you peace of mind. Our goal is to give you the home you want and need, all within budget and finished on time, all whilst not impacting on the quality. Around 90% of our works come from repeat business and recommendations. Interested in our services? Give us a call today to discuss your requirements with one of our helpful team.
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Spoonerbrothers London
Rating: 5 out of 5
Extension Builder in Sevenoaks
Spooner Brothers London has 20 years of building experience We have a good reputation for customer service, many of our leads are recommendation, with competitive prices & a high standard of workmanship. We specialise in orangeries, conservatories, porches, Skypods, windows, doors & bi-folds ! We are Certass fenestration registered, so all work comes with a building compliant certificate and an insurance backed guarantee See our brochures on the Spooner brothers london website
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Latest review:
Windows & Doors (uPVC & Metal)- 29 Jan 2024
John did a fantastic job of replacing a large sash window in our kitchen. He was easy to work with, and was very clean and tidy with the job. On top of that the price was very fair, particularly for the calibre of work completed. Would recommend!!

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.