Extension Builders in West Kensington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (21 reviews)

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Some of our top rated extension builders in West Kensington

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Happy Building London Ltd
Rating: 5 out of 5
Extension Builder in West Kensington
Hello, We’re an architectural design and construction management company with a love of creative inspiration. We help turn dreams and visions into reality for people who aspire to live in exceptional contemporary spaces. Big ideas are our thing. Along with expertly costed build packages. Then there’s our end-to-end project management service, perfect for people who want to leave nothing to chance.
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Latest review:
Restoration & Refurbishment- 17 Jul 2016
Valter was very impressive on his initial visit with some exciting ideas for the house improvements and we had no hesitation in choosing Happy Building above the other two building firms who quoted. Having signed off on the budget and scope of work, Valter's team of builders arrived. We were hugely impressed with the skill, experience and work ethic of the team; the fact that they arrived early each morning smiling underlined the "Happy Building" epithet; Jarek, the site foreman, had an especially cheery demeanour. The work involved stripping the walls back to bricks, removing walls, reinforcing foundations, plastering, extending the bathroom and removing one bedroom to create a large ensuite bedroom. The latter certainly would not have been done without Valter's vision and patience in explaining how it would look. We were able to deviate from the original plans without any problem which was very important in achieving the final look which we had desired. Valter was very careful in sticking to time and budgets which I had never experienced before with builders. The kitchen, bathroom, two bedrooms, living room and hallways were finished to the highest possible specification within our budget. There were one or two small features which, with hindsight, we would have improved such as door handles and shower fittings, however this was down to us not specifying exactly what we wanted. These are very minor details and a tiny part of the overall picture.
Plustudios LTD
No reviews yet
Extension Builder in West Kensington
Space Up is a trusted general contracting firm specializing in residential construction projects. With a focus on excellence and customer satisfaction, we deliver high-quality results on time and within budget. Our experienced team works closely with clients, prioritizing clear communication and attention to detail to ensure every project exceeds expectations. From new construction to renovations, count on Space Up for superior craftsmanship and reliable service.
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GARDEN AND BUILDING SERVICES LIMITED
No reviews yet
Extension Builder in West Kensington
We are a reputable company specializing in all aspects of home improvement, including flooring, construction, gardens, electrical work, plumbing, ceilings, and painting. We hope to meet your expectations.
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Beam Developers ltd
Rating: 5 out of 5
Extension Builder in West Kensington
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
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Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
EmiMata
Rating: 5 out of 5
Extension Builder in West Kensington
All building maintenace Painting All sort of Carpentry Building Gardening
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Latest review:
Groundwork & Foundations- 29 Nov 2025
Working with emi was a breeze
DDL MAINTENANCE & ESTIMATES LTD
Rating: 4.9 out of 5
Extension Builder in West Kensington
Several project available on request . Reference available on request
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Latest review:
Groundwork & Foundations- 14 Nov 2017
Positive experience. Thank you
Sukhdeep Singh
No reviews yet
Extension Builder in West Kensington
We are undertaking all building works
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Treewood Ltd
Rating: 5 out of 5
Extension Builder in West Kensington
Welcome to Treewood Ltd. Treewood Ltd offers professional and wide range of construction services; conversions, extensions, decorating, bespoke furniture, flooring, metalwork and many more. Our mission is to deliver high quality services to everyone who is passionate about our innovative options of designing styles also add the value to people lifestyles through following individual preferences, making certain that customers receive what they expect.
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Latest review:
Hard Flooring- 2 Apr 2019
We are thrilled with our new floor! I’m so pleased we went with Treewood to lay parquet flooring in our downstairs lounge. Andrew has done the most amazing work and his attention to detail is fantastic. We moved out of the house while the work was going on as we have a baby, and Andrew kept us to up date each day with his progress and he even sent pictures. I would highly recommend Treewood to anyone needing new flooring at exceptional quality! Carly
V&B LANDSCAPE
Rating: 4.9 out of 5
Extension Builder in West Kensington
Hi We are polite team and true fare builders, we have been in the business from 2014 . competitive prices. We believe in great customer service and offer our customers the best that we can in terms of planning, pricing and installing. We offer a free quotation, We are so confident in our work we are happy to give you work reference.
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Latest review:
Landscaping- 19 Aug 2019
Vladimir and his team made this project a very enjoyable experience. He understood the brief perfectly, and didn't bat an eyelid when it changed underway. I would highly recommend Vladimir.
Utilities& property services ltd
No reviews yet
Extension Builder in West Kensington
We have been carrying out all plumbing and gas work for the past 15 years with authrised manufacturer registered like worcester, vailliant, inter gas, baxi etc
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De Winter’s Property Services LTD
Rating: 3 out of 5
Extension Builder in West Kensington
Welcome to De Winter’s Property Services LTD – we proudly cover all aspects of work, both domestic and commercial. Whether it’s your home or business, our experienced team delivers high-quality, reliable solutions tailored to your needs. I’m Aidan De Winter, director of De Winter’s Property Services. I’ve been a fully qualified plumbing and heating engineer since 2014, with extensive experience across domestic and commercial sectors. Over the years, I’ve built strong knowledge in many areas of the construction industry and a trusted team of skilled tradespeople around me. Based in South London, we’re happy to take on jobs across all of London and beyond. Why choose us? With a reputation for quality, honesty, and reliability, we deliver every job to the highest standard—on time and within budget. No job is too big or too small, and we treat every project with the care it deserves.
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Latest review:
Plumbing- 24 Jan 2026
I did hire Aiden De Winter for the job. He came and inspected the problem and sent us a link to purchase a new pump. I paid him for this work. We purchased a new pump, and he decided not to finish the job and come back to install the pump. This caused a lot of problems as he was the second plumber I hired for this job, and now we have to find a third plumber! What a waste.. how hard is it to come back and fit the pump! Do not use this company at all costs!
ALB Landscaping
No reviews yet
Extension Builder in West Kensington
Welcome to ALB Landscaping family run business. We offer a fixed price quotation. Established in 2011 we believe we are one of the leading landscaping companies in East Kent & East London. We have produced thousands of high-quality designs and landscaped gardens all over East Kent -East London Our expert landscape gardening team has the construction know-how and garden design expertise to create bespoke, imaginative, and beautiful gardens. We can assist from the initial concept ideas all the way through to the finishing touches. You may not be sure about how to start making your dream garden a reality; however, our dedicated team can assist you throughout the process, delivering a seamless and stress-free service.
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Hatellari Ltd
No reviews yet
Extension Builder in West Kensington
Welcome to Hatellari Ltd, Construction & Consultancy, serving London & surrounding areas delivering high-quality solutions tailored to your needs. Our experienced team is here to guide you through every step. Let’s build your vision together! Edison Hatellari MD
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SpectRoom property Maintenance LTD
Rating: 5 out of 5
Extension Builder in West Kensington
At SpectRoom Ltd we pride ourselves for being prompt, working to budget and on time and are very clean. We will fully complete any project including all decorating flooring tilling construction and all other property maintenance jobs to customer requirements and for that we will be more than happy to provide local references. SpectRoom for spectacular rooms.
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Latest review:
Extensions- 22 May 2019
Jacob was very accommodating and flexible. His team were great and he completed the work nicely. There was some splatter from the cementing on to my neighbour's wall. He tried to clean it off but it wouldn't all come off. Therefore, he went out and bought some paint and repainted their wall. I would get him back for more work without hesitation. When looking for a builder - they have to be honest, work hard and to an excellent quality without cutting corners. They should be responsible to ensure neighbours property isn't damaged and provide consultancy as what we want and want is realistic can differ significantly! - and if any issues rectify them once the job is complete and of course provide good after sales. I have used several builders over the years - very few tick all of the above boxes. Jacob certainly does.
Particle Construction LTD
No reviews yet
Extension Builder in West Kensington
New to MyBuilder Particle Construction is a full-service construction firm specializing in all aspects of building work, from initial extensions to final finishes. With a focus on delivering high-quality results, we handle projects of varying sizes and complexities, ensuring every detail meets the highest standards. Whether it's expanding existing spaces or completing intricate interior finishes, our team combines expertise, craftsmanship, and attention to detail to deliver exceptional outcomes for every client
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POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in West Kensington
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
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Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez

4.2

Top rated Extension Builders

Our Extension Builders in West Kensington, are rated 4.2 out of 5 based on 21 reviews from customers like you.

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

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 West Kensington 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 West Kensington who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Kensington?

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

Find extension builders in West Kensington with MyBuilder

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

Step 2: Compare different extension builders in West Kensington

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

Step 3: Hire West Kensington extension builders with confidence

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

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

What to ask a West Kensington extension builder before hiring?

Before hiring an extension builder in West Kensington or extension building company in West Kensington, 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 West Kensington?

An extension builder in West Kensington 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 West Kensington 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 West Kensington?

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 West Kensington 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 West Kensington 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 West Kensington

Can an extension builder in West Kensington help with planning permission?

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

Many West Kensington 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 West Kensington help with materials and finishes?

Yes, most extension builders in West Kensington 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.