Extension Builders in North London | MyBuilder

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Some of our top rated extension builders in North London

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SGB Water Engineering
Rating: 5 out of 5
Extension Builder in North London
SGB maintain an interactive IT process, to ease transparency and movement of information data, to all parties involved in any one project. We have a combined 25 years professional experience in the civil engineering / construction management. We are experts in water utilities management enabling us to offer a variety of services and solutions in this area.
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Latest review:
Plumbing- 9 Dec 2020
Work completed and problem has been resolved .
Samul Construction LTD
Rating: 5 out of 5
Extension Builder in North London
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!
Signature 1 Construction Ltd
Rating: 4.5 out of 5
Extension Builder in North London
Signature 1 Construction LTD is a family run business with over 25 years experience in the building industry. We specialise in extensions, loft conversions and full house refurbs. Every job we undertake we take great care of the clients house and are experienced project managers will look after you from start to finish.
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Latest review:
Extensions- 30 Sep 2025
Overall, I’m very pleased with the work Marin has carried out for us and I’m currently in the process of instructing him to do more work. Marin built a high spec cedar shed for us with electrics and plumbing, some brickwork and laid composite decking. Marin came across, honest and reliable, which in itself is rare. He was on site most mornings to make sure his tradesmen were on the right tracks. Like with a lot of these things there were some issues along the way and I was highly impressed by Marin’s ‘no quibble’ approach to rectify any problems. I myself have a high attention to detail and am quite indecisive (nightmare client) and Marin was happy to work with me with changes to the project without incurring extra costs.
Teimourazi Bachsoliani
Rating: 5 out of 5
Extension Builder in North London
Hi, my name is Temo. Our team has combined experience of more than 20 years and we have an excellent reputation, for high quality work, tidy finish and friendly service. My team does all types of jobs including extension, loft conversion, full refurbishment. We always deliver best quality job for a reasonable price.
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Latest review:
Conversions - General- 3 Oct 2026
Teimo, George and his team did a fantastic job on our renovation project. They helped us take our three bed terrace back to brick throughout, and helped us with a side return extension/knocking through the back of the property. The guys were considerate, courteous and extremely hard working. Teimo coordinated efficiently with our interior designer and structural engineer on the project to resolve any issues that arose and to help us achieve a great finish. I would recommend Teimo’s services.
Restoration and Refurbishment Specialists Limited
Rating: 5 out of 5
Extension Builder in North London
Cubitt Wren is a London refurbishment and restoration firm. We deliver full refurbishments, renovations, extensions, kitchens and bathrooms, and loft conversions - with particular care for the character of period and listed homes. Every project is led personally by a Project Director and delivered by our in-house trades: carpentry, joinery, plastering, stonework, tiling and decoration. One team, one point of contact, from first survey to handover. Before work begins, you'll have a detailed written scope and clear pricing, so you know exactly what's included and where you stand. A clear programme keeps you informed throughout, and our aftercare commitment continues beyond handover. We build homes and spaces we're proud to put our name to.
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Latest review:
We recently had our bathroom refurbished by Cubitt Wren in London, and we couldn't be happier with the result. From start to finish, they were reliable, professional, and always turned up when they said they would. The work was completed quickly without compromising on quality, and the whole team was polite and respectful throughout. Communication was excellent the entire way through. They kept us updated at every stage, answered any questions we had, and made the whole process stress-free. The finished bathroom looks fantastic, and it's clear they take real pride in their work. I would definitely use Cubitt Wren again in the future and wouldn't hesitate to recommend them to anyone looking for a reliable and skilled company.
BuildingSolutionsGB Ltd.
Rating: 4.6 out of 5
Extension Builder in North London
Your Dream Home, Tailored to Your Budget – Gain Value, Avoid Stress, and Partner with Us for Life When you choose us, you’re not just hiring a builder; you’re gaining a trusted partner for life. We believe in creating long-term relationships with our clients, offering not just exceptional construction but a lifetime of support through maintenance, management, and future upgrades. We understand that home improvements can be a significant investment, and we’re here to help you gain the most value without compromising on quality. Whether it’s a home extension, renovation, an office fit-out or luxurious upgrade, we tailor our services to suit your budget—using value engineering to ensure you get the most out of your investment while avoiding unnecessary costs. From the very first consultation, we’re committed to delivering a stress-free experience that goes beyond just building your dream home. We’ll be with you through every stage, ensuring your property continues to perform and appreciate in value for years to come. Why Clients Choose Us: • Gain More for Your Money: We specialize in customizing solutions that respect your budget without compromising quality. Through expert design, meticulous planning, and cost optimization, we ensure you get more value for every pound spent. • Avoid the Headaches of Project Delays: You’ll never have to worry about project overruns or surprise costs. We ensure clear, transparent communication and avoid common pitfalls—giving you peace of mind and ensuring your project runs smoothly from start to finish. • A Lifelong Partnership: We’re not just building your home; we’re building a relationship for life. Whether it’s future renovations, ongoing maintenance, or property management, we’ll continue to support you long after your project is complete, ensuring your home stays in excellent condition for years to come. • Experience You Can Trust: With over 300 successful projects, our team brings experience and reliability that’s hard to match. We have worked on a wide range of projects, and our reputation for delivering exceptional results consistently is what sets us apart. • A Seamless Experience from Start to Finish: We believe that home improvement should be a stress-free experience. With us, you’ll gain the satisfaction of knowing your project is in expert hands, delivered on time and on budget. And when the work is done, we’ll be here for ongoing maintenance and support. See the Results: mytrustedbuilder co uk Our portfolio and Clients feedback specks for it self. Explore our past projects to see how we’ve helped Clients like you gain the homes they’ve always dreamed of—while avoiding the stress and complications that often come with home construction.
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Latest review:
Extensions- 3 Jan 2025
Alexandr was a pleasure to deal with, frequently visiting the site to discuss variations with us and keeping us updated with progress. Ours was a complex project, very different to a standard rear extension, and there were variations and delays, but they were dealt with professionally and we are delighted with the final result. We would use MTB again and would recommend them to anybody.
BUILDING BLUEPRINTS
Rating: 5 out of 5
Extension Builder in North London
A highly experienced and qualified contractors from a Carpentry & Joinery background. Taking on diverse scoped projects ranging from Domestic to Commercial.In the residential sector from renovations and refurbishments at the same time carrying many trades in house. We are ready for your project
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Latest review:
Carpentry- 19 Sep 2015
Not only was Ian's quote to do the loft conversion very reasonable, he was very reliable, tidy & very helpful when we had a difficult situation. The work was done in a quick time, when he said he was going to be on site he was, at no time did he let me down. The standard of work was excellent, I would recommend Ian & wouldn't hesitate to use him in the future.
London & Kent Best Kitchen & Bathroom Solutions Ltd.
Rating: 5 out of 5
Extension Builder in North London
Our highly skilled team of builders, carpenters, electricians, decorators and plumbers are reliable, trustworthy and dedicated to achieving the highest quality finish for your project; however large or small. Each project is tailored to your requirements and managed via a single point of contact.
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Latest review:
Bathroom Fitting- 26 Nov 2020
Sylwester and team did a fantastic job and were incredibly accommodating and polite with all of our requests. Would definitely recommend.
ZDRAVA PROPERTY MANAGEMENT LIMITED
Rating: 5 out of 5
Extension Builder in North London
Renovation and Restoration
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Latest review:
Restoration & Refurbishment- 29 Sep 2023
Renovated my 3 rooms and made it brand new again:) did a very good job and more, very reliable and did the job in a very good time frame, I am loving my house Would definitely Recommend
Beam Developers ltd
Rating: 5 out of 5
Extension Builder in North London
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
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Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
Su Su Construction Limited
Rating: 5 out of 5
Extension Builder in North London
Welcome to Susu Construction: Your Premier London Construction Partner Are you searching for a London construction company that stands out for its excellence, commitment, and innovation? Look no further than Susu Construction, your go-to choice for top-notch construction solutions in the bustling capital of London.
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Latest review:
Groundwork & Foundations- 2 Dec 2022
We are very happy and glad to have found Su Su Construction. It is great to work with such an open minded contractor who is very experienced and diligent. To us architects it is really important to be able to explore alternative means of construction in order to create long lasting, beautiful and healthy environments and with SuSu we are on the right track. Highly recommend.
AEE Construction Ltd
Rating: 5 out of 5
Extension Builder in North London
General renovations, electric, plumbing, decoration, painting, kitchen fittings, tiling, flooring, bathrooms, extensions, loft conversions and property maintenance
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Latest review:
Handyman- 27 Jul 2023
Very professional and polite man. Job done neat and professionally. Would highly recommend.
H&J Properties 02 Ltd
Rating: 5 out of 5
Extension Builder in North London
H&J Properties is your friendly, reliable small team with over 10 years of experience in the building industry. We design, plan, build, and project manage, so you can rely on us for a full round of service. From floor and wall tiling to full kitchen and bathroom installations, we’ve got your home covered. We handle plastering, painting, drylining, insulation, and more with precision and pride. Need a loft, rear or basement extension, a new roof, or concrete work? No problem. Whether it’s bricklaying, basement waterproofing, or installing windows and doors, we bring craftsmanship and care to every job. Big or small, we build it right. Please message us directly for more project images.
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Latest review:
We have contracted H&J Properties for our house refurbishment in London. I was impressed with the team's professionalism and project management from start to finish. We had no plans or planning approved, so we wanted a design and build company who will be able to look after the project from start to finish. They did just that. Working with the architects and the planning application before starting the project planning. As always, there are, of course, unforeseen issues arising with the old houses in london but I could't be happier with the communication received from the team. Thanks for the great job.
LEBELLE HERITAGE & RESTORATION LTD
Rating: 5 out of 5
Extension Builder in North London
Lebelle Heritage & Restoration Lebelle Heritage & Restoration is a professional building and construction company specialising in renovations, refurbishments, and heritage restoration. We take on all types of projects, from full property renovations and structural upgrades to detailed interior finishes and the careful restoration of period features. Our team is skilled in both traditional craftsmanship and modern construction methods, allowing us to deliver work that is reliable, high-quality, and built to last. Whether we’re restoring the character of an older property or breathing new life into a modern home, we focus on precision, honesty, and clear communication throughout every stage of the job. We pride ourselves on delivering clean, efficient, and well-executed work that meets the needs of our clients and respects the integrity of each building. At Lebelle Heritage & Restoration, we build, renovate, refurbish, and restore with a commitment to quality and long-term durability.
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Latest review:
After a previous contractor took our money and left our loft extension unfinished, we were devastated and worried about how we would ever get our home back to normal. Then Lewis from Lebelle stepped in and completely turned things around. Lewis was patient, understanding, and incredibly professional. He worked quickly, kept costs under control, and finished the loft extension to a standard we’re so happy with. The stress he took off our shoulders was unbelievable. We honestly can’t thank Lewis enough. If you’re looking for someone trustworthy, skilled, and genuinely caring, Lebelle is the company to call.
CM Building LTD
Rating: 5 out of 5
Extension Builder in North London
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
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Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
Kalafuldeco
Rating: 5 out of 5
Extension Builder in North London
❌ We Turn Houses Into Kalaful Homes ❌ 350+ REVIEWS / 5 STAR RATING X⭕️X - WE'LL MATCH ANY REASONABLE QUOTES - X⭕️X Hi, This is Cristina in The Office. We Specialise in Flooring / Painting Int / Ext Building Services - Kitchens / Bathrooms / Lofts / Extensions.etc +£25 Each - Plane / Trimming Doors if required +Removal £50 - £75 Each Room + Disposal £100 - £300 If Required FLOORING ESTIMATES / WE ALSO DO PAINTING Fitting Beading / Scotia is Free, Inc in the Job Fitting Skirting is Min £200+ / Hallway Min £250+ Kitchen / Bathroom Min £200+ Laminate / Lvt Click ( Sub Floor Must be Reasonablly Level ) Straight Runs - £20m2 / Inc Hallways £25m2+ MIN £100 UPTO 5m2 Engineered Click Straight Runs - £25m2 / Inc Hallways £30m2+ MIN £150 UPTO 5m2 Hardwood T&G / Tongue & Groove Straight Runs - £30m2 / Inc Hallways £35m2+ MIN £200 UPTO 5m2 Herringbone - £40 - £45m2+ Cash Deals + 20% on Bank Transfer or if Invoice is Required - Payments To be Made End Of Each Day ❌ Must be Able to Provide Off Street Parking / Permits as The Crew Needs Access to The Vehicle at all Times. Thanking you in Advance Christina & Kam @ Kalaful Deco PAINTING ESTIMATES PAINTING ONLY - NO WALLPAPERING We also do Flooring / Gardening / Man & Van + Handyman Jobs Single Room - £300 Inc Minor Filling & Sanding / All White ) + £75 / 2 Colours / Woodwork £50+ £150 Extra To Paint on Fresh Plaster Living / Double Room - £400 Inc Minor Filling & Sanding / All White + £75 / 2 Colours / Woodwork £50+ Hallways- £450 - £750 Inc Working around 4-8 Doors Thanking you in Advance Christina & Kam @ Kalaful Deco
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Latest review:
Hard Flooring- 1 Oct 2026
Kam did a fantastic job fitting my flooring. He worked diligently and went above and beyond to ensure a really high-quality finish. He was honest, reliable and easy to communicate with throughout the process. Great workmanship, great price and excellent service. I would highly recommend Kam to anyone looking for a flooring fitter!