Extension Builders in South Kensington | MyBuilder

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Some of our top rated extension builders in South Kensington

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Leonart Building Ltd
Rating: 5 out of 5
Extension Builder in South Kensington
Leonart Design & Build is a London-based property design and construction company combining creativity, craftsmanship, and over 15 years of industry experience. Founded by a skilled builder and an interior designer, and supported by a dedicated team of expert tradespeople, Leonart delivers a complete design-to-build service tailored to each client’s needs. From full refurbishments to bespoke extensions and interiors, we turn ideas into beautifully built spaces — on time, on budget, and with care. Our goal is simple: to create exceptional homes while removing the stress and uncertainty that often come with renovations.
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Latest review:
Hard Flooring- 29 Dec 2018
Giuseppe and his team are top level professionals able to give qualified advice and real expertise. In renovating our art gallery, they showed real old-time mastery from the beginning. They not only helped us study the most suitable solutions for the features of our place both for the flooring and the walls painting, but also showed amazing precision and care in carrying out the whole renovation project by applying the renowned knowledge of Italian master masons. While other builders had cursorily told us that any laminate would be good, the one that Giuseppe and team suggested us was selected by considering both the resistance to the clomping and the desired aesthetic result. Also, they adopted all the special arrangements needed to prevent the wood floor from bulging and lifting. They suggested us the type and the colour for the skirting board, making the gallery even more refined. The works were terminated in the estimated time and the fantastic result in terms of elegance, sophistication and safety has been possible thanks to the reliability and attention to detail of Giuseppe and team. We were so satisfied that we decided to hire them for all the other works needed (ceiling painting, walls painting, positioning of the anti UV film in our windows, enforcement and lifting up of the electrical track for the lighting system). All these works were completed with mastery and are still contributing to fascinate all the visitors at the gallery!
Lazaros
No reviews yet
Extension Builder in South Kensington
I am Lazaros Koto, I have 11 years of experience in construction
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FFernandesConstruction
No reviews yet
Extension Builder in South Kensington
Fernandes Constructions Hi, we have been in this trade 10 years We specialise in: painting and decorating wood flooring full bathrooms, full kitchens, electrical & plumbing house extensions Conservatory
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Fitzgerald Construction
Rating: 5 out of 5
Extension Builder in South Kensington
We are a small group of tradesman who have worked together for the last 25 years. We have extensive experience in all types of domestic building work and specialise in open-plan kitchen/diner extensions (including the full structural steelwork supports).
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Latest review:
Bricklaying- 17 Jun 2022
Our brick garden wall was collapsing and I contacted Richard Fitzgerald for a quotation. I'd already had a few quotes from other builders, some of whom had told me I needed work doing that didn't need doing! I found Richard to be trustworthy. He provided a competitive quote. He managed to source bricks that matched the colour of the adjoining wall, gave us a detailed breakdown of the work he would do, and didn't ask for any payment in advance. He built a strong brick wall with a concrete support wall behind. The finished wall is excellent and we are very happy with the work he and his team have done. On finishing the work the premises were left clean and tidy. I am very happy to recommend him.
Planix Ltd
Rating: 5 out of 5
Extension Builder in South Kensington
Planix limited carry out all aspects of constructor but specialised in loft conversion, extensions, garage conversions and property refurbishment including kitchen and bathroom fitting.
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Latest review:
Conversions - General- 21 Oct 2021
Job done well and good solutions provided when problems were encountered
The00company
Rating: 5 out of 5
Extension Builder in South Kensington
Independent family business taking pride on our reputation for a unique combination of workmanship and service regardless of the size of project. My team and I are customer-oriented providing you with quality products built to your exact specifications in the specified time period. We provide a personalised service that involves you in all design and planning.
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Latest review:
Khin and Senh did an amazing job redoing all the skirting in our home. Their quote was competitive and their workmanship outstanding. They helped us source the materials to our specification for a great price, handling all the delivery details and were happy to pick up any bits and bobs to get the job done. Each day they arrived on time and often worked late to accommodate the fact we had carpets coming in the following week. After each day tools and materials were squared away and they would send updates on progress. The final product was top quality and has nicely finished off our home as part of a large book of renovations. Finally any snags that I did notice they were happy to come back and address, I couldn’t have wished for any more from these guys. All the best !
H & F London Limited
No reviews yet
Extension Builder in South Kensington
H & F London is a specialist construction company based in Hertfordshire & West London. We’re known for providing groundwork solutions & new builds for a variety of clients across London and Hertfordshire.
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Panacea Q Construction
No reviews yet
Extension Builder in South Kensington
We are a general contractor and construction company
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Douglas carpentry and building
Rating: 4.9 out of 5
Extension Builder in South Kensington
Douglas carpentry and building has over 10 years experience in all aspects of building work. We as a company have very high standards to accommodate all your building work needs from internal doors, skirting, architraves, built in wardrobes to all general building work. Hard working, dedicated, reliable, clean and tidy and here to give you a fair and honest quote. Please look at previous work on my Instagram page @douglascarpentry23
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Latest review:
Carpentry- 14 May 2026
Replaced a rotten external single door. The existing door frame was reused, as per request. This frame wasn't perfectly square which Alex had to compensate for. Alex arrived on time and completed the work without any unresolved issues, taking all offcuts and old door away for disposal.
Tota Spark Ltd
Rating: 5 out of 5
Extension Builder in South Kensington
Hi there.I have established this company because I like the work I do and the most important thing is that I want that every client to receive the best of service.I undertake electrical work and general building works.
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Latest review:
Electrical- 10 Sep 2019
Nice, trustworthy guy. Quick reply and on time. Will definitely call again next time I need an electrician.
Liskerrin Limited
No reviews yet
Extension Builder in South Kensington
Liskerrin is a multi-disciplinary property and construction company. Based in London, we specialise in small to medium sized fit-out projects in commercial, retail and residential sectors. With experienced in-house designers and project managers, we offer a complete service from initial concept design to construction on site.
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FBF Construction Ltd
Rating: 5 out of 5
Extension Builder in South Kensington
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!
KESZ Construction Ltd
No reviews yet
Extension Builder in South Kensington
BUILDING COMPANY BASED IN NORTH WEST LONDON! FULL REFURBISHMENT, EXTENSIONS, LOFT CONVERSIONS, FLOORING! We offer professional and reliable contracting services for a wide variety of residential and commercial needs, working with the dedication and craftsmanship that has earned us a reputation for excellence.
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BATKHUYAG BALJINNYAM
No reviews yet
Extension Builder in South Kensington
I working 20 years in the building. Started working labour and now can do plastering, kitchen and bathroom installing , carpentry and decorating jobs
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David's
No reviews yet
Extension Builder in South Kensington
An experience trade person, great treat to all the customers also good worker and professional jobs with great results. Always like to give my customers good results with a good price
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Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in South Kensington
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability