Describe your job with details to view a tailored list of tradespeople.
Post your job

Extension Builders in Chelsea

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

How it works

Post your job for free

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Chelsea

3578 Results

Sort by:

  • Extension Builder in Chelsea

    Undertaking majority of building works with high end finishes and happy customers ,don’t hesitate to contact us for a free quote ,will go around to check what I have done all my previous jobs can be seen Thanks a lot 😉

    Get in touch
  • Extension Builder in Chelsea

    At Morina Property we deliver bespoke Building and Maintenance services to home owners and businesses. Providing Consultancy Service, creating project plans and dealing with planning consent, services issues and supporting project owners in dealing with day to day issues including delivery of project on time and within budget. Specialised in refurbishments and development of properties. Property and Block Maintenance. Complete Project Management from beginning to end.

    Get in touch
  • B6 Foundation and Piling Specialist is a family run, employee owned trust, founded in 2005 .Company is one of quality of service and client satisfaction. Our primary business is to service the construction comprising Piling, Foundation, Drainage, Steel Fixing, Slabs, Paving, Demolition, setting up etc.

    Get in touch
  • Mega Co Group Ltd is a professional brickwork and stonework company delivering high-quality workmanship across all aspects of masonry. We specialise in extensions, garden rooms, summer houses, new builds, and repointing for brick and stone properties. With a reliable and experienced team, we complete projects efficiently, safely, and to a high standard. We take pride in our attention to detail, clear communication, and leaving every site clean and tidy. Customer satisfaction and long-lasting results are at the heart of everything we do.

    Get in touch
  • Hello, we are Bains brothers, we don't just build structure, we build relationship. we always tell our new costumer to go see our jobs which we have finish and speak to our costumers about our work.

    Get in touch
  • I.am dedicate to make great work ,always ready to satisfy client to meet their goal., With an experience gain during a lot of project,I wish to share this with new clients project.

    Get in touch
  • Extension Builder in Chelsea

    Hard working methodical tradesperson with a proven track record of large and small projects.

    Get in touch
  • Extension Builder in Chelsea

    Thornveil Developments Ltd is a reliable and professional construction company specialising in refurbishments, property improvements, and general building works across London. We take pride in delivering high-quality workmanship, attention to detail, and efficient project completion. From small jobs such as painting, flooring, and partitions to larger projects including renovations, garage conversions, and structural work, we handle every job with the same level of care and professionalism. We work closely with our clients to understand their needs and ensure the final result meets expectations. We offer competitive pricing, clear communication, and a dependable service from start to finish. Customer satisfaction is our priority, and we aim to build long-term relationships through trust and quality results. We understand how important timelines and budgets are, which is why we plan every stage carefully and keep our clients informed throughout the process. Our team is committed to maintaining clean, safe working environments and delivering results that add real value to your property.

    Get in touch
  • Extension Builder in Chelsea

    Hi. My name is Harpal Singh. I do complete bathrooms jobs and plastering jobs. Thanks

    Get in touch
  • Extension Builder in Chelsea

    We have a committed team working on a range of different projects throughout London, working in all sectors including; residential, commercial and conservation. The services that we provide are, architectural and structural 2d & 3d designs, calculation, planning permission, building control, new build, refurbishment, self contained flats, loft conversion, rear and side extension plus much more. I have over 30 years of experience in construction and have worked on a variety of different projects, from small developments to managing large scale Projects.

    Get in touch
  • Extension Builder in Chelsea

    I am a handy man, I professionalise in painting, carpeting , flooring, removing and installing, maintaining.

    Get in touch
  • Extension Builder in Chelsea

    I am pleased to introduce myself as a small construction company. I am working in this field from over 10 years. I have a proven history of providing quality work and I am confident I can provide the same level of service to your project. I do all kinds of jobs from little extensions to variety of construction projects, so if you like to learn about the services or contact for a consultation I am look forward to hearing from you!

    Get in touch
  • Extension Builder in Chelsea

    As Manjeet Singh Multani of Taj Building Services, I bring a commitment to quality and precision to every project. With years of experience, I ensure that each build is not only structurally sound but also aesthetically pleasing, tailored to your specific needs and vision. My dedication to customer satisfaction, combined with transparent communication and reliable service, makes Taj Building Services the trusted choice for bringing your construction dreams to life. Our approach is collaborative, working closely with you to understand your needs and preferences, ensuring the final result exceeds your expectations. Whether it's a new build, renovation, or extension, Taj Building Services combines traditional craftsmanship with modern techniques to create spaces that are both functional and beautiful. We are fully insured and compliant with all building regulations, giving you peace of mind throughout the entire process.

    Get in touch
  • White Feathers Construction is a trusted London-based building company carrying out all aspects of construction work to the highest standards. From home extensions and loft conversions to full refurbishments and new builds, our experienced team delivers reliable workmanship and honest service on every project. We take pride in turning our clients’ ideas into solid results — safely, efficiently, and with attention to every detail. At White Feathers Construction, quality and customer satisfaction are at the heart of everything we do. Whether you’re improving, extending, or starting from the ground up, we’ll ensure your project is built to last.

    Get in touch
  • Extension Builder in Chelsea

    I'm a builder I do any kind of job. new build,refurbishment

    Get in touch

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.

Quality screening

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.

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.

Other tradespeople in Chelsea

Cities