Extension Builders in East 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 East Finchley

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Fatjon Ndrevataj
Rating: 5 out of 5
Extension Builder in East Finchley
Fatjon Renovations ltd. Own company, van and tools. Painter and decorator, kitchen and bathroom fitter, tiler, plasterer, carpenter, with years experience working in the London area.
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Latest review:
Kitchen Fitting- 16 Feb 2026
Fatjon did a great job on our kitchen and took good care of his surroundings.
ALLARAJ BROTHERS LTD
Rating: 5 out of 5
Extension Builder in East Finchley
Welcome to ALLARAJ BROTHERS LTD At ALLARAJ BROTHERS LTD, we pride ourselves on delivering excellence in every project we undertake. With decades of experience in the construction industry, we have established a reputation for quality, reliability, and customer satisfaction. Our team of skilled professionals is dedicated to bringing your vision to life, whether it's a residential, commercial, or industrial project. We use the latest technologies and sustainable practices to ensure that every build is not only beautiful but also durable and environmentally friendly. We understand that each project is unique, and we tailor our services to meet your specific needs and preferences. From initial consultation to project completion, we work closely with you to ensure that every detail is executed to perfection. Choosing ALLARAJ BROTHERS LTD means choosing a partner who values integrity, transparency, and excellence. Let us help you create spaces that inspire and endure. Contact us today to discuss your next project and experience the difference that true craftsmanship and expertise can make.
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Latest review:
Restoration & Refurbishment- 5 Jan 2025
Very happy with the professionalism, and friendly polite communication. Adem is a perfectionist and can see things I noticed no one else could. The quality of workmanship was excellent. Will definitely be using them again.
Jt building
Rating: 5 out of 5
Extension Builder in East Finchley
I have been a multi trader for over 12 years, with quite extensive experience working in majority of trade departments from kitchens, bathrooms, tiling, plumbing, doors, windows, joinery, carptentry, first fix, second fix, lofts and extensions, have seen through many projects and worked with many people. Can also assist with design ideas/plans as well as build. Happy working with small or large projects, take full responsibility and pride in my work.
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Latest review:
I couldn’t be happier with the work carried out on my home. The tiling on the ground floor, the laminate flooring upstairs, and the kitchen units were all completed to an exceptionally high standard. The attention to detail was outstanding, and everything was finished neatly and professionally. He was reliable, hardworking, and clearly takes great pride in his work. The end result looks amazing and has completely transformed my home. I would highly recommend him to anyone looking for quality workmanship.
DanEco Build Ltd
Rating: 5 out of 5
Extension Builder in East Finchley
Hi, here at DanEco Build Ltd we specialise on all aspects of building works. So whether you're looking to do a bathroom, a kitchen or the whole house renovation we've got the knowledge and the team to help. Our work is done to the highest standards and we use sustainable materials wherever possible. Previous projects The Library House, RIBA Regional winner & Shortlisted for House of the Year 2022. Proud to have built it. Our strength is attention to detail & always exceed customer expectations.
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Latest review:
Bathroom Fitting- 27 Mar 2024
Driton was able to give me some great advice, fix the problem on the spot and stop me paying out for a new cistern and toilet. So he saved me a lot of money and the inconvenience of having my bathroom turned upside down with building work, re-tiling etc. I'm very grateful.
Alban's A Team Solution
Rating: 5 out of 5
Extension Builder in East Finchley
Hi my name is Alban I am a builder. I am honest and hardworking person. I have 18 years experience on general building trade. I undertake all building work, new build houses, new extensions, loft conversion. We also do all refurbishment interior and exterior. All structure and good knowledge of architectural plans.
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Latest review:
Carpentry- 20 Oct 2017
nice guy, good comms, very good cartentry
Assured Builders London Ltd
Rating: 5 out of 5
Extension Builder in East Finchley
We have been in the building trade for 30 years, we are a professional building company specialising in New Builds, Extensions and Loft conversions & renovations, Office to Residential, Student accomodation all in London & Hertfordshire. The majority of our work is through personal recommendations. We are always happy to show previous work. We work with: Home Owners Property Developers Housing Associations Landlords and many more We Project manage your whole project from start to completion to make it as stress free as possible. We are Members of Trust Mark and Considerate Constructors Scheme. Please email your plans for your current projects for a free no obligation quote.
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Latest review:
Extensions- 5 Feb 2019
We have instructed Assured Builders to carry out out our renovation work. Work has just started and the foundations have just been laid down. I am so please to have found Assured Builders. Nikki and Lee are a pleasure to work with. Any questions or concerns are quickly addressed and any suggestions are quickly looked into. Both Nikki and Lee are very friendly and easy to talk to which was very important to us. I cannot wait for the work to be completed. I will update my review once the job is done and post photos. We have been communicating/working with Assured Builders for a few months now and I can only say I have nothing but good things to say. I can highly recommend Assured Builders.
Jaches construction
Rating: 5 out of 5
Extension Builder in East Finchley
Architectural Engineering drawings. Construction. Ground and first floor Extensions. Loft conversions. Interior design. Painting and decoration. Boiler installations.
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Latest review:
Conversions - General- 28 Jul 2023
I had Tony in to do my ballastrade, he also ended up doing a lot more work including my driveway, have recommend him to several people and all have used him, highly recommend
MT Building Services
Rating: 4.9 out of 5
Extension Builder in East Finchley
MT Building Services here, we undertake all Building construction work from beginning to end. We are specialised in loft conversions, extension, full house refurbishments. We undertake small jobs aswell as flooring, kitchens,doors etc etc. Contact us for quotations. Thanks MT BUILDING SERVICES
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Latest review:
Restoration & Refurbishment- 2 Aug 2025
Asen did an incredible job! In just under 4 weeks he managed to assemble a team and complete renovation on a 2 bed flat including: * Full rewiring, new lights, updating and adding sockets * Fixing rotten and uneven subfloor and levelling the whole house * Wood flooring throughout - done excellently with no thresholds * New boiler and all new radiators * Built a pocket door at the porch to stop our kitties from escaping * Tiled the fireplace * Skirting, decorating and repainting the entire flat * Dealt with gutting the place and arranging pickup of rubish The place looks and feels amazing and everything works! Asen was good on the price, kept to the (very tight) timelines, great communication throughout and overall very professional and friendly! Pics shows after and during the work, ignore the moving boxes.
Isac Mihai
Rating: 5 out of 5
Extension Builder in East Finchley
Responsible person, on time and attention to detail. Over 20 years of experience in all domains.
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Latest review:
Kitchen Fitting- 7 Sep 2026
Isac did an excellent job removing my old dishwasher that was stuck in place and fitting the new one at very short notice as the firm booked in to do the job couldn’t remove it. He even helped with getting a loose hinge secured and adjusting the base board to go back into place. Highly recommended
Marks construction
Rating: 5 out of 5
Extension Builder in East Finchley
We pride ourselves on giving an excellent level of service, through the workmanship and professionalism which often results in recommendations. Our goals are to provide a highly professional and quality service tailored to suit your individual needs working to achieve a combination of aesthetically pleasing, practical and cost effective solutions for your project.
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Latest review:
Kitchen Fitting- 10 Jun 2026
Great communication, arrived on time and quickly resolved an issue with our integrated fridge cabinet. Very helpful, professional and reasonably priced. Would happily use again.
T C Construction Ltd
Rating: 5 out of 5
Extension Builder in East Finchley
TC CONSTRUCTION is a company build on a new generation of builder's with new ideas and construction systems to provide a hight quality job's for the customers.
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Latest review:
Kitchen Fitting- 22 Mar 2022
Tudor did a great job on our kitchen. He kept us informed on progress all the way through the job allowing time in the morning for questions and then getting on with the work during the day. At the end of each day he showed us and spoke with us about the excellent progress he had made. Very pleased with our lovely new kitchen which is clean, bright and spacious.
Wader construction
Rating: 5 out of 5
Extension Builder in East Finchley
Over 30 years of professional bricklaying experience, I specialise in all aspects of brickwork, blockwork, stonework, brick slips, repointing, repairs, extensions, garden walls, fences, RC frame masonry, masonry support systems, paving and slab laying, and general masonry construction. I take pride in delivering high-quality craftsmanship, attention to detail, and reliable service on every project. Whether working on residential, commercial, or heritage developments, I am committed to achieving exceptional results and ensuring complete customer satisfaction. Services Include: Brickwork & Blockwork Stonework & Brick Slips Repointing & Repairs Extensions & New Builds Garden Walls & Boundary Walls External wall insulation system Silicone and acrylic render. RC Frame Masonry Masonry Support Systems Paving & Slab Laying General masonry works. Refurbishments
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Latest review:
Bricklaying- 31 Aug 2026
He is a great and professional person to work with, I would highly recommend Dariusz!
AXM Construction (London) Ltd
Rating: 5 out of 5
Extension Builder in East Finchley
Hello We are a team which we’re happy to help make your work easy and nicely done. Our first priority is the Client. We try our best to get the job done in the right way, and soon as possible.
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Latest review:
Carpentry- 18 Dec 2024
Excellent work. Finished the job on time. Tidy and neat finishing and reasonably priced.
CONSTA Construction Limited
Rating: 4.6 out of 5
Extension Builder in East Finchley
CONSTA Ltd - small construction company based in London, and characterises in flexibility to complete various jobs . There is list of different small or awkward completed jobs in our portfolio as well as more significant projects as loft conversions, extensions, full house reconstructions, new build and Passive House construction as well.
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Latest review:
Extensions- 29 Aug 2021
Communicated well at the start with reasonable cost. work was done well but the finishing was not so great as expected. The end cost was very expensive. Charged by the hour, the team were very slow which was upsetting to see me pay for time where they sat around not doing much. Ensure to agree fixed price. Communication after job is poor, double glazing has warranty which now not being able to communicate with kostas having to pay to get things done that should be covered in warranty. Central heating give huge problems. Do not use for big jobs
KBS London Ltd
Rating: 5 out of 5
Extension Builder in East Finchley
We are a North London Carpentry and General building company. I am a Qualified Carpenter from New Zealand, I have 30 years experience with 20 in London. We can carry out all works on residential, retail and commercial projects, from strip out to completion. We have a network of tried and proven tradesmen and suppliers. We are Quick Clean happy to work out of hours if necessary. I will do you a free quotation and happy to discuss works and guide you if necessary. Karl
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Latest review:
Carpentry- 8 Jun 2026
Responsive and good communication - delivered the job as planned and quoted. Would recommend.
Ferati & Sons
Rating: 5 out of 5
Extension Builder in East Finchley
With over 25 years of experience, we provide reliable, high-quality building services across the local area. We’re known for our attention to detail, clear communication, and getting the job done right first time. We specialise in: • Extensions • Groundworks & drainage • Conversions • Structural steel work (RSJs) • Rendering • Underpinning • Plasterboarding & internal works From small improvements to full property transformations, we manage every stage professionally and efficiently. We keep sites clean, stick to agreed timelines, and make sure you’re informed throughout the project. Most of our work comes from repeat customers and word of mouth - something we take great pride in. Get in touch today for a free, no-obligation quote and friendly advice
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Latest review:
Groundwork & Foundations- 11 May 2026
Excellent timing , communicated well explained everything clearly . Completed the job on the same day .

3.9

Top rated Extension Builders

Our Extension Builders in East 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 East 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 East 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 East Finchley who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in East Finchley?

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

Find extension builders in East Finchley with MyBuilder

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

Step 2: Compare different extension builders in East Finchley

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

Step 3: Hire East Finchley extension builders with confidence

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

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

What to ask a East Finchley extension builder before hiring?

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

An extension builder in East 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 East 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 East 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 East 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 East 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 East Finchley

Can an extension builder in East Finchley help with planning permission?

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

Many East 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 East Finchley help with materials and finishes?

Yes, most extension builders in East 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.