Extension Builders in West Kensington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in West Kensington

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Clarence Loft Conversions
Rating: 5 out of 5
Extension Builder in West Kensington
Clarence Loft Conversions is a small carpentry based building company specialising in Lofts. We cover all aspects of building works. Concentrating on one job at a time, providing a high quality finish. Covering Surrey and south west London.
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Latest review:
Building work was very well done and the boys were great. Thank you 👍
Demiri Construction
Rating: 4.6 out of 5
Extension Builder in West Kensington
Demiri Construction it’s a family business in the construction industry over 10 years We offer service on: House refurbish Bathroom fitting Kitchen fitting Flooring Demolition Painting Plastering Tiling Plumbing Electric Carpentry New builds We make sure the job is done to high standards and within the agreed time. Call us for a free estimate quote.
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Latest review:
Kitchen Fitting- 13 May 2025
I am so pleased that to have hired Demiri construction company because they did am amazing professional job right from the start . Communication was clear asked for very specific information and provided clear terms and conditions . The quality of the job is excellent and the attitude of the workers is great, very polite and explained things well provided all necessary details including payment terms on completion of the job . No task was too hard for them. They also provided advice regarding adjustments to the original plans which was very helpful . They cleared up the area gradually as they went along which was very good I will definitely recommend Demiri construction and will certainly hire them again Thank you very much
AG south construction
Rating: 5 out of 5
Extension Builder in West Kensington
I'm qualified bricklayer with 20 year's experience, I'm doing refurbishements and new houses work from start to finishing off in very high standard.
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Latest review:
Extensions- 13 May 2026
Agim completed a ground floor extension for me in 2025 and I would not hesitate to recommend him for similar work. The quality of the work was excellent and the team worked tirelessly for months to ensure it was completed on time and for a reasonable price. Agim was able to adapt quickly when any unforeseen problems occurred, always clearly communicating possible solutions to help keep the project moving. Having people in your home can be difficult but Agim is very respectful and considerate, making sure to put our needs first. The results are fantastic and Agim continues to help snag any minor issues that come up. I couldn’t be happier with how things went, testament to his professionalism. Thanks Agim for all your help on this project.
PRASH DEVELOPMENTS LIMITED
Rating: 5 out of 5
Extension Builder in West Kensington
PRASH DEVELOPMENTS LTD specialises in construction of Large Luxury New build Home, HMO & Flat developments, Extensions and Loft conversions We are team of skilled professional with 13 years of combined experiences. We pride ourselves in offering best quality hassle free service with effective pricing and timely delivery. Please feel free to contact us for any construction related information.
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Latest review:
The builders were in time and a great job done in one day when others quoted for 3 days job — all done with great professionalism and satisfaction — will give them 10⭐️
The urban tasker limited
Rating: 5 out of 5
Extension Builder in West Kensington
I have experts for bathrooms, kitchen fitting ,roofing flooring . Also we provide best services for all construction work with written guarantees at genuine prices
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Latest review:
Roofing (Flat)- 9 Jul 2024
Good service all work and great price!
Bendev Construction 2018 Ltd
No reviews yet
Extension Builder in West Kensington
Family business with experience in new builds, extensions and refurbishments
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GM Construction
No reviews yet
Extension Builder in West Kensington
Our range of construction projects include kitchens & bathrooms, refurbishments, loft conversions and extensions. We project manage our work and believe that good clear communication with our clients is key to a successful project- from our first consultation visit, throughout the quotation and build process. We want our clients to be delighted with both the quality of our work, and the manner in which it is carried out. We look forward to hearing from you soon!
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professional polish builder(london)
Rating: 5 out of 5
Extension Builder in West Kensington
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!
G.W.Builders
Rating: 5 out of 5
Extension Builder in West Kensington
My name is Gavin. I have been a bricklayer since leaving school and have over 25 years experience in the building trade. Feel free to check my excellent feedback. Working area Sutton Coldfield and surrounding areas. Willing to travel further for bigger jobs. Free Quotes within a 5mile radius of Hardwick.
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Latest review:
Extensions- 20 Sep 2023
GW builders did an amazing job building my porch. Gavin and the team were friendly and professional throughout. Would definitely recommend to others and use again
Mbalau Construction LTD
Rating: 5 out of 5
Extension Builder in West Kensington
Builder with 20 years of experience . I provide a wide range of building services such as: loft conversion, extensions,bathroom refurbishment,house refurbishment , plumbing and electric etc . I have the tools,knowledge and team to build a house from start to finish . I can provide references and pictures of previous work upon request .
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Latest review:
Complete refurbishment of 2 bed 1100 sq ft flat. Including removal internal walls Ripping out and renovating 2 bathrooms. Involving new layout replumbng and relocation of #electrics. Tileing Preparing and laying wood flooring throughout. Fitting shelving and book case. The work over 2 months involved all building skills. Throughout Marcel and his highly skilled crew were efficient clean and resourceful. I would highly recommend for all building and decoration work.
North Builders LTD
Rating: 4.8 out of 5
Extension Builder in West Kensington
North Builders LTD have a team of specialists which gives you quality and high standard work on Loft conversions, Extensions, Roofing, Renovation, Refurbishment. We based in London and we cover all M25. With the best quality work and proffesional prices on the market we managed to make happy a lot of costumers around London and not only. Our priority is the costumer to be satisfied, the project to finish in timeline and on budget. Contact us for free quotes.
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Latest review:
Loft Conversion- 2 Nov 2025
Full loft conversion with dorma. Blerim always asked the right questions and made really good suggestions. Very helpful and great quality. Would happily recommend him and his team.
RENNO HOMES LTD
No reviews yet
Extension Builder in West Kensington
Welcome to Renno Homes, where we specialize in transforming living spaces to create the home of your dreams. Our dedicated team is committed to delivering high-quality renovations that reflect your unique style and needs. From concept to completion, we take pride in our attention to detail and our ability to handle every aspect of your project seamlessly. At Renno Homes, we prioritize customer satisfaction and strive to exceed your expectations. Whether you’re planning a small update or a complete transformation, we are here to guide you every step of the way. Contact us today for a consultation, and let’s bring your vision to life.
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LOUI"S MAINTENANCE LTD
Rating: 4.9 out of 5
Extension Builder in West Kensington
we are a reliable professional small company,we provide a high quality of work at competitive price"s,we are fully insured for all the work we take on ,and we are proud of what we do ,no job to small or too big ,we do kitchen & bathrooms,plastering & tiling,wood flooring,painting & decorating ...
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Latest review:
Bathroom Fitting- 15 Oct 2024
Actually, I prefer to call him as Super Mario instead of Loui :) Initially I agreed to work with him just for our bathroom renovation project but he fixed almost everything later on. Pipe installation, plastering, painting, and installation of furnitures are just some points of this work. He made an amazing job while renovating our bathroom, I still could not believe it is ours. I just observed he was very disciplined and working vey clean. He came early 8 AM and left around 5 PM without any delay and more importantly left my property enormously clean (I wish you see my wife’s happiness), almost for a week. He then replaced my garage roof which was leaking after every rain. Fixed my rain gutters and drains. Well, he then fixed all my internal doors and garage doors which were not aligning properly. I am so happy as a customer and I am really happy with the quality of work. Thanks again Loui.
jrs renovations
No reviews yet
Extension Builder in West Kensington
Let us help building your dream Our Mission At Ringoy Construction, our mission is to redefine the construction experience by delivering exceptional craftsmanship and innovative solutions. from minor renovations to major new builds, not only meets but exceeds the expectations of those we serve. With decades of experience across London, we pride ourselves on building not just homes, but lasting relationships with our clients. New Builds Renovations Extensions Design Consultancy
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Artsystem ESSEX Ltd
Rating: 5 out of 5
Extension Builder in West Kensington
We are providing high quality general building work like extension,loft conversion,bathrooms,kitchen fitting,plumbing ,completely refurbishment ..... We have ower 20years experiencies and our work is always hight quality. We can also help wiyh garden ,dryway,patio,fence ,roof,.......Dont hesitate ask me about help...
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Latest review:
Handyman- 23 Jan 2023
Would highly recommend....👍 He is a trades person you can trust. I was very happy with the work. He did what he said for the price we agreed upon. Carried out the job on time and worked with great enthusiasm. Seemed determined to solve all problems encountered and cleaned up at the conclusion of the job.Would highly recommend.I felt confident with them working on my property.
One hundred property group limited
No reviews yet
Extension Builder in West Kensington
The company has diversified to include architecture, build and project management – helping clients to realise their aspirations through the successful integration of these services. Challenging the traditional approach of procuring these services separately, and shown how coordinating all these disciplines under one roof achieves greater benefits across quality, time and investment.
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4.2

Top rated Extension Builders

Our Extension Builders in West Kensington, are rated 4.2 out of 5 based on 20 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.