Extension Builders in Chelsea

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

Easily find verified Chelsea Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Chelsea.

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Some of our top rated extension builders in Chelsea

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Noel mc ardle
No reviews yet
Extension Builder in Chelsea
I am a bricklayer by trade for 30 years ,, i also do full contract , renovations and extensions
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Dr construction
No reviews yet
Extension Builder in Chelsea
Hi! Are you sick of trying to find reliable builders who aren't trying to rip you off? Then look no further! We are highly experienced builders who have been working in construction for over 30 years ! We also work honestly and will give you unbeatable prices. So get in touch ! Our motto is clear fair, honest business. Things we cover: - kitchen fitting - bathroon fitting - tiling - plumbing - electrics - flooring - loft conversions - garden work And much much more! So look no further and send me a message and I will do my best to help you. Look forward to hearing from you !
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PMC Developments
New on MyBuilder
Extension Builder in Chelsea
Carpenter from Ireland living and working in London since 2012
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DMG builders
No reviews yet
Extension Builder in Chelsea
Hi This is Mohammad I have done this job over 10 years I happy to help clients doing there jobs and get them the highest quality of finishing
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Quality Brickwork GB Limited
Rating: 5 out of 5
Extension Builder in Chelsea
‘Quality brickwork’ is a newly established company of professionals who take pride in their work.The initial idea from the founders is to prove that quality work can be done to highest standard on a reasonable time frame and fare price. Bricklaying is a trade with long traditions and great value for residents who wants to build their dream home. Quality brickwork LTD is a business who understands their customers’ needs.Just contact us for a friendly chat or a completed quotation!
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Latest review:
Bricklaying- 8 May 2024
We Initially hired Svet and the team just to build two walls in the front garden. We've been so impressed with them that we then went on to use them for a full two-storey extension. I highly recommend!
CHL IMPROVEMENTS LTD
No reviews yet
Extension Builder in Chelsea
North London based 10 years of experience
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E&S building construction LTD
No reviews yet
Extension Builder in Chelsea
We are a family run construction company dedicated to meeting all your construction work needs to high standard
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Paulo
No reviews yet
Extension Builder in Chelsea
Been working 3 years in construction mostly everything but expertise in laminate flooring.
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ANGULARIS Developments UK Limited
No reviews yet
Extension Builder in Chelsea
Hi I’m Michael owner of ANGULARIS Developments. We are an established building company with expertise in Loft Conversions, Extensions, Refurbishments and New Build Developments. Having been in the business for over 25 years we have a wealth of experience and expertise in the construction business. Able to offer design and build services and advice on your next project. We look forward to hearing from you and working with you to bring your dreams to reality
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Buchanan brickwork
No reviews yet
Extension Builder in Chelsea
Hello there, Freindly Professional Qualified Builder with 17 years experience and fair rates
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O.M.D World LTD
No reviews yet
Extension Builder in Chelsea
OMD World is a London construction and interior fit-out expert, committed to exceptional design, build, and maintenance services to meet your needs. We offer high-end residential construction solutions tailored to our clients' exacting standards. With dedicated project teams and stringent quality control, we ensure perfection in every project. Whether you're an architect, designer, developer, or homeowner, we provide solutions that never compromise on quality and always exceed expectations. Our skilled team is selected and tested through complex projects in London, undergoing stringent vetting to uphold our reputation as the premier residential construction company. We train every craftsman and contractor to guarantee adherence to our high standards and shared ethos. Our Directors make regular site visits to meticulously inspect each project, ensuring perfection.
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David Rutland & Co. Ltd
Rating: 5 out of 5
Extension Builder in Chelsea
We are a well established family run business with over 30 years experience, we undertake all aspects of building work from patios and driveways to extensions and refurbishments. We deliver excellent customer service alongside fantastic workmanship. Every project we undertake is bespoke to our customers needs drawing upon our years of experience and knowledge to deliver a quality finish. We can accept Credit card payments.
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Latest review:
Landscaping- 18 Jul 2025
Efficient and a quality job, would recommend.
Vitalii
No reviews yet
Extension Builder in Chelsea
Hi, my name is VikVit. I’m an experienced and reliable tradesman with over 7 years in the building and home-improvement industry. I specialise in kitchen installation, bathroom renovations, tiling, painting, flooring, plastering, small electrical and plumbing tasks, as well as all types of internal repairs and fittings. I take pride in delivering high-quality work, paying attention to detail, and always keeping my clients informed throughout the job. I work clean, efficiently, and make sure every project is completed to a professional standard. If you’re looking for someone trustworthy, skilled, and easy to communicate with — I’ll be happy to help with any job, big or small.
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Ekon Building LTD
No reviews yet
Extension Builder in Chelsea
With over 15 years of experience, we are a premier London-based construction company specializing in full-scale renovations, bespoke kitchens and bathrooms, extensions, and loft conversions. From initial design to completion, we deliver high-quality craftsmanship, reliable plumbing and electrical services, joinery, and landscaping. We are committed to excellence, delivering tailored solutions that bring your vision to life within budget.
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JAY Executions LTD
No reviews yet
Extension Builder in Chelsea
What makes us different is that we care about our clients and keep in touch with them even after finalising the project, and solve the future problems if any will exist. We are committed to delivering the highest levels of quality and service to our clients across all sectors, always embracing new ideas and methods of construction.
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Ajazi construction limited
No reviews yet
Extension Builder in Chelsea
Hello and welcome to ACL (Ajazi Construction Limited) ACL is a professional construction business which is located in London. All the work carried out by Ajazi Construction is of the highest standard and we have been successfully completing work for satisfied clients in London Ajazi construction ltd provides high quality & affordable service. ALL BUILDING WORK UNDERTAKEN New Builds Loft Conversation Extensions Renovations Carpentry work Kitchens Bathrooms
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4.2

Top rated Extension Builders

Our Extension Builders in Chelsea, are rated 4.2 out of 5 based on 19 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Chelsea?

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

Find extension builders in Chelsea with MyBuilder

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

Step 2: Compare different extension builders in Chelsea

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

Step 3: Hire Chelsea extension builders with confidence

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

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

What to ask a Chelsea extension builder before hiring?

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

An extension builder in Chelsea 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 Chelsea 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 Chelsea?

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 Chelsea 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 Chelsea 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 Chelsea

Can an extension builder in Chelsea help with planning permission?

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

Many Chelsea 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 Chelsea help with materials and finishes?

Yes, most extension builders in Chelsea 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.