Extension Builders in London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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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E&S building construction LTD
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Extension Builder in London
We are a family run construction company dedicated to meeting all your construction work needs to high standard
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VHP construction limited
No reviews yet
Extension Builder in London
Expert builders with over 2 years of experience serving north London. We specialize in high-quality Top Service, , extensions and renovations, carpentry, kitchen fiter. Plumbing , electric.delivering professional results on time and on budget. Reliable, clean, and fully insured—get in touch for a free, no-obligation quote today!"
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LEXI_Constructions
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Extension Builder in London
LEXI — Experts in Renovation, Restoration & Remodeling in London. At LEXI, we specialize in transforming London homes through thoughtful design, expert craftsmanship, and meticulous attention to detail. Whether you're renovating, restoring, or reimagining your space, we bring your vision to life — beautifully and efficiently. 𝑾𝒉𝒂𝒕 𝑾𝒆 𝑫𝒐: ✔ HOME RENOVATION — from light cosmetic upgrades to full-scale refurbishments. ✔ INTERIOR RESTORATION — bringing timeless style and functionality back to your home. ✔ LAYOUT REDESIGN & EXTENSIONS — smart spatial solutions tailored to your lifestyle. 𝑨 𝑻𝒂𝒊𝒍𝒐𝒓𝒆𝒅 𝑨𝒑𝒑𝒓𝒐𝒂𝒄𝒉 𝒂𝒕 𝑬𝒗𝒆𝒓𝒚 𝑺𝒕𝒂𝒈𝒆: We work closely with you from concept to completion — offering bespoke solutions, clear communication, and strict adherence to timelines. Your goals and preferences are at the heart of everything we do. 𝑫𝒆𝒔𝒊𝒈𝒏 + 𝑩𝒖𝒊𝒍𝒅: With LEXI, you benefit from a fully integrated team. From planning permission to final finishes, we handle every detail in-house — eliminating the need for third-party contractors. One team. One process. Total peace of mind. 𝑶𝒖𝒓 𝑴𝒊𝒔𝒔𝒊𝒐𝒏: To craft beautiful, functional, and enduring spaces that reflect the way you live. We combine design vision with technical excellence to deliver results that elevate everyday living. 𝑳𝒆𝒕’𝒔 𝑩𝒖𝒊𝒍𝒅 𝒀𝒐𝒖𝒓 𝑰𝒅𝒆𝒂𝒍 𝑯𝒐𝒎𝒆: Contact us today for a free consultation — and let’s bring your next project to life.
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Geni Renovation
No reviews yet
Extension Builder in London
Looking for a reliable team to deliver high quality renovation? Look no further! Here at Geni Renovation we overtake all jobs, and can count on dedicated teams with excellent skills which can renovate at high standards, on budget and time without ever compromising on quality.
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PureBuild.
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Extension Builder in London
Very Proffesional. Punctual at all times. Work done to the highest standard at good prices. Over ten years Experience in all aspects of build work including Lofts and Extensions.
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SLRA Ltd
No reviews yet
Extension Builder in London
Builder company, refurbishment and new build. Bespoke joinery, wardrobes, kitchens etc.
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John
New on MyBuilder
Extension Builder in London
Hello, my name is John. I have been working with the ME team in the UK for 15 years. I have experience in this field and so far, I have solved any problem my clients have faced. Together with them, I have worked on both the design and the quality of the work. Thank you and I want to be of use to you.
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PBLO LTD
No reviews yet
Extension Builder in London
I am an experienced and reliable tradesperson with a strong track record of delivering high-quality work on time and within budget. I take pride in my attention to detail, clear communication, and professional approach, ensuring every project meets the client’s expectations. Whether it’s a small repair or a large extension, I’m committed to providing honest advice, skilled craftsmanship, and a friendly service from start to finish.
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Vasi Paint
No reviews yet
Extension Builder in London
Hi,my name is Vasile. I have 15 years experience in general building,painting,decorating and plastering. Please feel free to contact me. Serious and reliable.
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Building outfitters ltd
No reviews yet
Extension Builder in London
Hi my company is building outfitters Ltd. I m working in all over London and out of London area. I m specialist in loft conversion,extension ,electrical,plumbing,new build house ,bathroom and kitchen installation ,bespoke bedroom. Driveway,fencing. Skimming and rendering,painting and decorating.
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Musta
No reviews yet
Extension Builder in London
MUSTA Building Services Ltd will provide an experienced team who'll see it right through from the design stage to completion. Whether it's your bathroom, kitchen or a whole house, we offer full building, decorating and plumbing services.
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Jassi Properties ltd
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Extension Builder in London
Jassi Group is a professional property development and construction company with over 15 years of experience. We specialise in bespoke home extensions and residential building projects including garage / loft conversions. We pride ourselves on quality craftsmanship, efficient project management, and delivering results that enhance both living space and property value.
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H&V carpentry joinery ltd
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Extension Builder in London
Refurbishments, extensions, Landscaping
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Kamboj Multisolution Ltd
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Extension Builder in London
KAMBOJ MULTISOLUTION LTD We are Professional builders, working on Projects mainly connected with Residential areas. We practice plentiful Construction areas such as LOFT CONVERSION EXTENSIONS BATHROOM (FULL FITTINGS ) PAINT ALL TYPE FLOORING (INCLUDE TILES AND CARPET) PATIO SLABS DRIVE WAYS CONCRETE WORKS and Many More Please do not hesitate to get free Quotes and visits ARSHDEEP SINGH
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Nazar Crivonis
No reviews yet
Extension Builder in London
Carpentry. Joinery. Partitioning. Drylining.
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Ss construction
No reviews yet
Extension Builder in London
With over 20 years of experience in the construction industry, our company has built a strong reputation for delivering high-quality projects with reliability and precision. We specialize in residential, commercial, and renovation projects, ensuring every build meets the highest standards of craftsmanship, safety, and durability. Our dedicated team works closely with clients to turn their vision into reality while completing projects on time and within budget.
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4.1

Top rated Extension Builders

Our Extension Builders in London, are rated 4.1 out of 5 based on 18 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 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.

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 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.