Extension Builders in North London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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

Select a service

How it works

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

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

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 North London

3537 Results

Sort by:

Prela LtD
No reviews yet
Extension Builder in North London
I have strong experience in gardening, landscaping, and house repairs. I am confident in all aspects of the work I do, including maintenance, renovation, and practical hands-on tasks. I am dedicated, hardworking, and always focused on delivering high-quality results. I take pride in my work, learn quickly, and adapt easily to different types of jobs. I am reliable, motivated, and committed to completing every task safely, professionally, and on time
Get in touch
RA Designs and Build Ltd
Rating: 5 out of 5
Extension Builder in North London
We are a dynamic construction firm specialising in innovative design and high-quality building solutions for both residential and commercial projects. With a commitment to excellence and attention to detail, our team of experienced architects, engineers, and skilled tradespeople collaborates closely with clients to bring their visions to life. We prioritise sustainable practices and utilise cutting-edge technology to enhance efficiency and ensure the durability of our structures. From initial design concepts to final construction, we are dedicated to delivering projects that not only meet but exceed client expectations, creating lasting value and aesthetic appeal. Our customers consistently recommend us for our commitment to quality, attention to detail, and exceptional customer service. They appreciate our ability to turn their visions into reality while staying on schedule and within budget. Positive testimonials highlight our professionalism, seamless communication, and the collaborative approach we take throughout each project. Clients feel confident entrusting us with their building needs, knowing that we prioritise their satisfaction and work tirelessly to ensure memorable and successful outcomes.
Get in touch
Latest review:
Excellent quality of work which has not caused any problems for many years. Efficient work style whilst keeping up a high standard of work.
C&L Construction services LTD
No reviews yet
Extension Builder in North London
At C&L Construction Services Ltd, we specialise in providing a complete construction service delivering refurbishment, development and maintenance services. We work on any projects from homeowners looking to extend complete /refurbishment of bathrooms and kitchens, modernisation for smart homes and automation systems and a full project management and design service. We can advise on material selection help navigate the minefield of planning building and health and safety regulations
Get in touch
new vision construction(uk) ltd
Rating: 5 out of 5
Extension Builder in North London
New Vision Construction (UK) Ltd is committed to provide the highest quality professional construction services. This commitment can only be maintained through the efforts of its people. We provide quality construction services to our clients. The pride we have in our work enables our clients to enjoy the construction process with confidence.The craftsmanship quality we produce is visible in all our finished projects regardless of the projects size.
Get in touch
Latest review:
Bathroom Fitting- 17 Jul 2020
Very professional & skilled builder. Aswell as a full bathroom refurbishment he took extra time on the small details to really make it a special end result. Me & my family are very pleased with Ranjits work. A very helpful and knowledgable man. Thanks Ranjit for a great bathroom for me & my family to enjoy.
Sigma star carpentry ltd
No reviews yet
Extension Builder in North London
Hi all I have my own business company, we do just from A to Z or doing part jobs, depending on clients necessity. Our first thing it’s the quality and time schedule on time, to have a good relationship with the clients. All best Serge
Get in touch
Buildluxe Ltd
Rating: 5 out of 5
Extension Builder in North London
Buildluxe specialises in residential refurbishment, renovation and property improvement projects. We take on everything from individual room upgrades through to full property refurbishments, structural alterations, conversions and extensions. Our approach is simple: understand the job properly, provide a clear scope and quotation, organise the right trades and manage the work through to completion. We can coordinate the different stages of a project, including demolition and preparation, structural works, carpentry, plastering, plumbing, electrical works, kitchens, bathrooms, flooring, decorating and final finishes. We place a strong emphasis on good workmanship, organised sites and straightforward communication. Clients are kept informed as the project progresses, and any changes or additional work are discussed before being carried out. Buildluxe is built around delivering well-managed projects and a high-quality finished result, whether you're upgrading part of your home or undertaking a complete renovation.
Get in touch
Latest review:
Painting & Decorating- 22 Aug 2026
Completed to high standard. Left bathroom very clean
Softwood Beech Ltd
No reviews yet
Extension Builder in North London
Softwood Beech, a reputable company based in London. We pride ourselves on our team of highly experienced carpenters who specialise in various aspects of woodworking. From constructing and erecting to installing and renovating, we handle projects of all sizes with expertise and precision. Our services encompass a wide range of wood structures, including everything from bespoke kitchen cabinets to comprehensive building frameworks.
Get in touch
David’s build
No reviews yet
Extension Builder in North London
Welcome to my page, the work that I cover is flagging, brickwork, astros, koi ponds, decking, fencing, and other landscaping roles.
Get in touch
Jujhar global limited
Rating: 5 out of 5
Extension Builder in North London
I am sarbjeet singh. I do all building works with confidence. You can check my work on google Jujhar global limited (@srbkmlgcjfs)
Get in touch
Latest review:
Fencing- 29 Sep 2024
Very nice work . They expert in each building work . I would highly recommend you. Also very cooperative team.
DRYPSIAK
Rating: 4.9 out of 5
Extension Builder in North London
Hello everybody! My name is Viktor. I am professional carpenter and joiner. I have big experience in first fix and second fix carpentry and joinery jobs. I install doors, skirtings, architraves, make partitions, and all jobs wiht wood. I make lofts conversion. I have experience 7 yers in carpentery and joinery, and lofts conversion. I also have big experience in bricklaing jobs, and in extention jobs.
Get in touch
Latest review:
Carpentry- 21 Dec 2025
Viktor and Michael are very friendly and professional. They were on time and the price quoted was the price I paid. I hired them to install architraves around 4 internal doors and I am very happy with their work. They made sure I was happy with the work before they left and they took time to clean up after as well. They take real pride in their work as all the joints are perfectly aligned and all the nails are sunk in to the wood so I can apply filler afterwards and paint. Viktor also made a quick trip to Screwfix to ensure he used the strongest adhesive to fix the architraves to tiles in the bathroom. I will hire Viktor and Michael in the future to refurbish my stairs and install wall panelling on the stairs wall. I highly recommend them for their honest and professional work.
Andrzej Zolnierzak
No reviews yet
Extension Builder in North London
With over 20 years of experience as a painter and decorator, I take pride in my precision, attention to detail, and commitment to perfection. I always strive to deliver the highest quality results in every project I undertake.
Get in touch
TEAMBEST DEVELOPMENTS LIMITED
No reviews yet
Extension Builder in North London
We are a family run building company with many years of experience. We have been doing extensions, loft conversions, full refurbishments, etc for over 40 years. We work closely with a team of Architects and can assist you with the design and planning of your project through to completion. We want to ensure you get the best job done, our team of builders are reliable and come with vast knowledge of the building Industry.
Get in touch
Polidor leisure ltd
No reviews yet
Extension Builder in North London
Lofts, extensions, refurbishments and new builds
Get in touch
B&V HOME IMPROVEMENTS LTD
No reviews yet
Extension Builder in North London
Home Improvements Company undertaking; Extensions, Loft Conversions, Refurbishments, Bathrooms, Kitchens as well as plumbing, electrical works and etc....
Get in touch
Darko
No reviews yet
Extension Builder in North London
I’m a skilled handyman, carpenter, and joiner with extensive experience in flooring and tiling. Known for building strong rapport with clients, I bring meticulous attention to detail and a deep respect for others’ time. I take pride in every project I undertake, consistently applying my knowledge and refining my craft throughout the week. Reliable, precise, and passionate about quality workmanship.
Get in touch
Highbury Builders
New on MyBuilder
Extension Builder in North London
We are a professional building works company specializing in high-quality residential and commercial construction. Our team delivers reliable workmanship, clear communication, and projects completed on time and to specification. We are committed to safety, compliance with regulations, and excellent customer service on every job.
Get in touch

Top rated Extension Builders

Our Extension Builders in North London, are rated 4 out of 5 based on 20 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 North 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 North 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 North London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in North London?

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

Find extension builders in North London with MyBuilder

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

Step 2: Compare different extension builders in North London

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

Step 3: Hire North London extension builders with confidence

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

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

What to ask a North London extension builder before hiring?

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

An extension builder in North 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 North 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 North 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 North 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 North 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 North London

Can an extension builder in North London help with planning permission?

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

Many North 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 North London help with materials and finishes?

Yes, most extension builders in North 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.