Extension Builders in Finchley

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Finchley

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MM
Rating: 5 out of 5
Extension Builder in Finchley
We are a highly experienced kitchen and bathroom design and installation company with over 20 years of proven expertise in delivering exceptional results. We provide a comprehensive, end-to-end service—from detailed consultation and bespoke design through to precise, high-quality installation—or a dedicated installation service tailored to your specific needs. Our work is defined by technical accuracy, refined craftsmanship, and a deep understanding of both aesthetics and functionality. We deliver bespoke kitchen and bathroom solutions across a full spectrum, from well-specified standard projects to luxury, high-end installations, all executed with exacting standards and attention to detail. Operating throughout London and the surrounding areas, we are committed to delivering a consistently high level of service, underpinned by expert guidance and industry knowledge. Every project is approached with a structured, client-focused process, ensuring clear communication, efficient delivery, and outstanding results. Regardless of the size or complexity of the project, we work in close partnership with our clients to accurately interpret their vision and requirements—translating them into expertly crafted spaces that meet the highest professional standards.
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Latest review:
Kitchen Fitting- 7 Sep 2026
Michael our kitchen fitter was amazing and went beyond the call of duty, especially as he took over an old kitchen with old pipes. So he had to re adjust everything and take serious measures to make sure that there were no leaks even though it was quite an old system and he adjusted cabinets to bypass the protrusions. He’s very nice and honest and good to work with so you can be sure you’re in good hands with him.
Haynes Building Services
Rating: 5 out of 5
Extension Builder in Finchley
Haynes Building Services are a trusted and professional company providing a full building service dedicated to the highest standards in every aspect of performance with over 30 years experience. We maintain a high level of repeat business through our ability to respond efficiently to clients wishes.
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Latest review:
Bathroom Fitting- 28 Nov 2020
Michael and his team did an excellent job of of fitting my new bathroom. They also redecorated my hall, stairs and landing. So pleased with the result. They were always polite, punctual and very helpful. Would definitely use them again.
Andros Construction Ltd
Rating: 5 out of 5
Extension Builder in Finchley
Dear customers- Andros construction LTD with 30 years experience, our team can do everything thats related to buildings, extensions, loft conversions, full refurbishment, painting, plumbing, kitchen fitting, plaster, carpenter, plasterboard, tiles , electrical jobs , we use high quality products to repair or build anything.We are constantly available for to complete any requirements that you have . All jobs big or small welcome, for free quotes and advice don't hesitate to contact us. My company wishes you have a great day.!
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Latest review:
Painting & Decorating- 22 Oct 2019
Fabulous team and were on time every morning. Their work was fast and efficient, Andros guided me along the way and has gone the extra mile to help me. I will be using Andros again around Xmas time. Ive seen a lot of builders last week, I made the right decision to go with him and his team. Thanks Andros.
Radus Carpentry
Rating: 4.9 out of 5
Extension Builder in Finchley
Carpentry services We have a large skills range and provide a multitude of carpentry and joinery related Fire Door Installation (Certificate) Flooring Installations Floorboards & Joists Doors - Internal & External Door Locks Bathrooms Kitchens Integrated Appliance Fitting Boarding Up & Securing Burglary Damage Ceilings Cupboards Fitted Furniture Plasterboard Property Refurbishment Radiator Cabinets Shelving Wardrobes Window & Frame Repairs Window Installation Window Locks Worktops
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Latest review:
Carpentry- 19 Sep 2026
In time, professional and quick. Recommend!
NORTH STAR BUILDING SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in Finchley
Established in 2010 Northstar Building Solutions are a highly successful building company specializing in exceptional residential projects. As well as covering all aspects of new build and can deliver technical expertise to the latest building designs. We pride ourselves in completing a variety of projects including affordable and high specification housing, energy centres, hotels, restaurants, community centres and a church; we are experts at Extensions, Conversions.
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Latest review:
Extensions- 2 Jan 2023
Excellent work overall. Builders were very professional, hardworking and friendly. Work was completed to a high standard and we were given updates throughout the entire process. Leo and his team were very responsive and resolved issues very quickly. Will 100% use North Star again for future work.
Horsley Construction ltd.
Rating: 5 out of 5
Extension Builder in Finchley
We are a small company based in north London specialising in extensions, loft conversions and garden rooms. I have worked in this sector for the last fifteen years and my company has been trading since 2016. We take on a small number of jobs but take them very seriously to get the best outcome. Our aim is to enhance the design during the building process and with clear communication create the absolute best project. Previously all our work has been repeat business and referrals.
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Latest review:
We have known and worked with Joe for the last 6 years. He has recently built a ground floor kitchen extension and created a utility area and downstairs cloakroom for us. His ability to communicate each phase of the build’s requirements is brilliant. His craftsmanship is impressive. He has the ability to turn ideas into reality. Joe is a highly skilled plumber and electrician too which is hugely advantageous. He is professional and easy to have in your home. I can’t recommend Joe highly enough.
E&E construction
Rating: 5 out of 5
Extension Builder in Finchley
With over 18 years of industry experience, our construction company specializes in high-quality house extensions and loft conversions across London and Essex. We are committed to transforming homes with expert craftsmanship, tailored design solutions, and reliable project management from start to finish. Whether you're looking to expand your living space, increase property value, or bring new life to your home, we deliver outstanding results that reflect your vision and meet the highest standards of construction excellence.
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Latest review:
Fencing- 9 Sep 2023
Ervin was polite, communicated well and worked hard to get the job done. Would hire again.
Agron Krasniqi
Rating: 5 out of 5
Extension Builder in Finchley
We are skilled builders with experience working on a number of residential projects at different sizes with high accountability. Vast experience in Loft Conversions, Extensions , driveways ,patios , bathrooms, full refurbishments. We also plan and design We are also fully qualified and highly experienced in electrical and plumbing with over 20 years of experience. Our aim is to grow and customer satisfaction is our top priority.
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Latest review:
Excellent communication. Competitive price from Agron They undertook our plumbing to include Central heating, underfloor heating and electrical work. They listened to our needs, very professional and accommodating. I would recommend Agron and his team to anyone looking for similar work. The overall finish was to an excellent standard.
Samul Construction LTD
Rating: 5 out of 5
Extension Builder in Finchley
Estimate Prices From: * Loft Conversion £50k(labour+materials+scaffolding) * Home Extensions £3-4k per square metre * Basement £3-8k per square meter (labour+materials). * Bathroom refurbishment £8k (labour).
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Latest review:
Demolition- 18 Oct 2011
Thank you very much - good job and good service. A real help!
Sami
Rating: 5 out of 5
Extension Builder in Finchley
Hi, I am a fully skilled plastering with 15 years of experience delivering quality work to your home.I also have experience in all other relating trades like external wall insulation,silicon rendering ect.
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Latest review:
Plastering- 9 Aug 2026
Excellent job. Samis quality of work is second to none , he really cares about his work and is confident he can deliver , which he did. Extremely happy with the render and would highly recommend .
FBF Construction Ltd
Rating: 5 out of 5
Extension Builder in Finchley
We take all types of jobs from demolish a house and rebuild at the highest standards.
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Latest review:
Florin extended and completely refurbished our 4-bedroom semi-detached house. This included extensive steelwork, underfloor heating, complete re-plumbing and rewiring, excavation, and an entirely new slate roof as well as varying extensions up to three floors high. I cannot say enough good things about his workmanship, professionalism and reliability. His workmanship makes a perfectionist like myself happy. He is also completely professional: even with our difficult neighbours he was always courteous and understanding, and even helped them sort out issues at a moment’s notice that had nothing to do with his building work on our property. And he is also thoroughly reliable. I cannot think of any instance where he committed to something and did not deliver — he even managed to finish all the work on our house ahead of schedule and on budget. We have been so happy with his work that we contracted him to build us a summer house as well, from scratch, and to complete revamping our front garden including elements of hard landscaping. Again he delivered flawlessly and we are very happy with the result. We also continually receive positive comments from people passing by and just seeing the front garden. We have used several other builders in the past on other properties, including far more expensive ones, and none compare to his level of competence, attention to detail in his workmanship, his complete professionalism and thorough reliability. Now that we have found Florin, we will never look for another builder again. I just hope once others experience what he delivers for themselves he will still have some availability for us in the future!
Cani 1 construction
Rating: 4.7 out of 5
Extension Builder in Finchley
we have a construction company we are in the happy position to fulfill each one separately our company is family owned we have been in this area for over 15 years, we offer (brickowork)🧱 face bricks face blocks garden wall retaining wall extension new building new house Repoiting landscape design & builds🏜
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Latest review:
Bricklaying- 17 Aug 2026
Rear single storey extension, they do the job professional!! Highly recommended!!
Direct Lofts LTD
Rating: 5 out of 5
Extension Builder in Finchley
A construction company specialising in loft conversion and extensions with 25 years of experience based in North London, enfield.
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Latest review:
Extensions- 12 Jun 2026
Nik did an amazing and professional job on my utility room. He was a great collaborator and very easy to work with. Highly recommended!"
Swiftfix
Rating: 5 out of 5
Extension Builder in Finchley
Trusted and reliable specialist in painting & decorating, tiling, and flooring. We combine high-end finishes with a friendly, professional approach, delivering clean, precise work with great attention to detail. Whether it’s a small job or a full renovation, we take pride in every project and always aim to exceed expectations. Quality work, honest service, and results you’ll be proud of.
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Latest review:
Painting & Decorating- 13 Sep 2026
Fantastic service from Swiftfix. They painted and decorated my entire flat and did an excellent job from start to finish. Everything was completed to a very high standard, and they were professional, reliable and easy to deal with throughout. The price was also very reasonable for the amount and quality of work involved. I’m extremely happy with the finished result and would definitely recommend them to anyone looking for a professional painter and decorator.
B.CANI Limited
Rating: 5 out of 5
Extension Builder in Finchley
Reliable, fully insured construction company delivering high-quality workmanship across residential and commercial projects. We cover all aspects of construction including extensions, renovations, loft conversions, kitchens, bathrooms, roofing, landscaping and full refurbishments. From design to completion, we manage every stage with clear communication, fair pricing and attention to detail. Customer satisfaction, safety and deadlines are our priority.
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Latest review:
Extensions- 11 Jan 2018
This was our first project, and we were exceptionally fortunate to find Bujar. We're actually getting tired of hearing our family and friends tell us how lucky we are and how amazing he sounds. One of the most honest, trustworthy, and genuine people I've ever met. If I had a problem, he'd be one of the first people I'd call! In fact I did last week and he came to the rescue :) His team were all friendly, polite, conscientious and very tidy. They worked around us as much as they could, always making sure we had access to what we needed which sometimes meant it took them longer to work. Bujar is a perfectionist and is so proud of what he does, he made sure everything was done to a high standard - the estate agent who came round after we were done was impressed! His prices are very fair (better value than other quotes we got and much less time). We couldn't believe it was done in the 3 months he said it would take, and we managed to fit in a few extra bits and pieces after that. He was so helpful throughout, took all project management on and didn't bother us unless an important decision needed to be made. He drove us around all over the place to sort kitchens, bathrooms, etc. and gave us really helpful advice throughout the process. Highly recommend him and his team. I can't imagine ever wanting to look for another builder unless I had to - something that is quite common amongst Bujar's clients. We are extremely pleased with everything about our new house.
Leo81
Rating: 5 out of 5
Extension Builder in Finchley
I am good at what I do and I'll do my best to get your house to look the way you want it to!
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Latest review:
Restoration & Refurbishment- 19 Apr 2025
Positively, certain aspects of the finishing, particularly tiling, were carried out to a good standard. However, the overall experience was mixed due to significant issues. There were notable challenges during the project involving basic logistics and site management, leading to considerable inconvenience that seemed avoidable. Furthermore, the quality of workmanship was inconsistent; while some parts were good, other areas involving fittings and fixtures showed a lack of attention to detail in the finish, requiring later adjustments. Communication during the process could also be difficult, particularly regarding problem-solving and planning for materials. While we appreciated the parts done well, the project was let down by these inconsistencies and process issues, leading to some ongoing snagging and disappointment.

3.9

Top rated Extension Builders

Our Extension Builders in Finchley, are rated 3.9 out of 5 based on 16 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Finchley?

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

Find extension builders in Finchley with MyBuilder

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

Step 2: Compare different extension builders in Finchley

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

Step 3: Hire Finchley extension builders with confidence

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

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

What to ask a Finchley extension builder before hiring?

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

An extension builder in Finchley 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 Finchley 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 Finchley?

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 Finchley 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 Finchley 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 Finchley

Can an extension builder in Finchley help with planning permission?

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

Many Finchley 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 Finchley help with materials and finishes?

Yes, most extension builders in Finchley 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.