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Extension Builders in London

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

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Some of our top rated extension builders in London

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  • Extension Builder in London

    single bricklayer with 18years experiance in the game! very neat and tidy! professional and clean!

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  • Extension Builder in London

    Im bricklayer, im doing all brickworks and blockwoks,repointing and repairing jobs.we have many years experience.

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  • Extension Builder in London

    On time hard working

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  • Extension Builder in London

    Hello we are in construction industry from more then 15 years we have a good experience worker working with us in this 15 years we haven't got any complain from any client we do out 100% when we work with someone we have groundworkers,labourer, 360 drivers,dumper/roller drivers,concrete finisher etc. Currently we have a team of 70+ worker in our company.anyone can contact me or text me at 07824163001 thank you.

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  • Extension Builder in London

    Hi ,my name is kiranjot kaur I’m the director of this company,,,me and my husband do work together..i do all the office and online work and my husband do the loft conversion and all building work…we are 5 team members work together,,and we have 12 years of work experience….we do all the jobs on reasonable prices with good work

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  • Extension Builder in London

    We offer high quality building services in all aspects of groundwork, bricklaying, plastering and rendering, extensions etc. We specialise in paving driveways, patios and decking, bathroom tiling and many others. As a director I have worked in the construction industry for the last 25 years and I have acquired many certificates and tickets which show the experience which we can bring to raise the quality of your homes. All our staff are highly trained and with extensive experience.

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  • Extension Builder in London

    Mat’s Group Ltd is an experienced construction and refurbishment contractor delivering high-quality residential and light commercial projects across London and the South East. We specialise in extensions, loft conversions, structural alterations, full refurbishments, and new build developments. Our team combines practical site expertise with strong project management, ensuring works are delivered safely, on time, and within budget. We regularly undertake structural works including foundation construction, steel installations (RSJs), underpinning, roofing, and complete internal fit-outs. As a Principal Contractor, we operate in full compliance with CDM 2015, maintaining high standards of health and safety, workmanship, and communication throughout every project. We pride ourselves on reliability, transparent pricing, and attention to detail. From small residential improvements to larger developments, we work closely with clients to achieve quality results with minimal disruption. Mat’s Group Ltd – Building with confidence.

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  • Extension Builder in London

    I'm a carpenter and general builder with over 20 years experience. I take on any aspects of carpentry and general building from small jobs to big jobs. I specialize in kitchens from fitting the full kitchen to changing a worktop. I also do any general building works. I pride myself on a clean professional job.

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  • Extension Builder in London

    JIK Construction LTD. Trading from 2013. Our service include extensions, loft conversions.

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  • Extension Builder in London

    I am working in construction since last 10 years. I can do work all over London and outer London as well , we are offer special services to customer. According to my long work experience I can do all types of building work . Our main motives to give good highly and satisfies services .

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  • We offer our industry knowledge & skills to clients across the board at all levels, from small jobs to large developments. We cover a wide range of property related services; Conversions/ Extensions/ Lofts New builds Carpentry Electrical Plumbing Painting & decorating Project management Refurbishment Strip out and demolition

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  • Hello, my name is Silviu and I specialise in providing a variety of services including gardening, fencing, painting, jet washing, and landscaping. With years of experience in these areas, I am committed to delivering high-quality work and ensuring your outdoor spaces are transformed to meet your vision and needs. I look forward to working with you and helping you create the perfect outdoor oasis.

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  • Extension Builder in London

    My name is Paul and I've been in the building trade since leaving school 40 years ago. I started out as a steel fixer, then went to college to gain a City & Guilds Level 3 in carpentry & joinery. Over the last 40 years I have become proficient in all aspects of the building trade. I specialise in extensions, loft conversions and refurbishments. I have had refurbishments featured in Home & Gardens Magazine and The Daily Telegraph. I live in Sidcup, but am willing to travel. All my work has been on personal recommendation. I pride myself on providing a quality service at a fair price and support the client from the beginning to the end of the job.

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  • General Builder and Refurbishment Specialist running for 18 years based on South East London. - Basement Excavations - Complex Structural and MEP Packages - Large Extensions and Whole House Refurbishments - Working on projects from £100k to £3m+ - Large, direct labour force and expert PM services from Senior Management

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  • Extension Builder in London

    A trusted construction company for building renovations, repairs and maintenance.

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  • Extension Builder in London

    Hi, I’m Harman Singh ,a trusted and experienced window and door installer with a strong focus on quality workmanship, reliability, and customer satisfaction. With 4 years of hands-on experience in the trade, I specialise in the supply and installation of: • uPVC, aluminium, and composite doors • Casement, sash, bay, and tilt & turn windows • Energy-efficient and secure glazing solutions I’m fully qualified, FENSA-registered, and committed to meeting all relevant building regulations and British Standards. Whether you’re upgrading your home or tackling a new build, I’ll work with you every step of the way to ensure a smooth, professional finish — on time and on budget. 💬 Friendly advice, clear communication, and no hard selling — just honest, high-quality work you can trust. I look forward to helping you improve your home!

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4.1

Top rated Extension Builders

Our Extension Builders in London, are rated 4.1 out of 5 based on 17 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in London?

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

Find extension builders in London with MyBuilder

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

Step 2: Compare different extension builders in London

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

Step 3: Hire London extension builders with confidence

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

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

What to ask a London extension builder before hiring?

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

An extension builder in London 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 London 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 London?

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 London 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 London 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 London

Can an extension builder in London help with planning permission?

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

Many London 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 London help with materials and finishes?

Yes, most extension builders in London 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.

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