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  4. Extension Builders in Chelsea

Extension Builders in Chelsea

Browse trusted local Extension Builders in Chelsea on TrustATrader, all vetted, with photos of completed work, and reviews from previous customers.

Local Extension Builders

We have found a selection of the best, most reliable Extension Builders in your area. You can click on a trader profile to find out more information, send email/SMS enquiry, or add them to your call back list.

  • Don't forget! Please mention TrustATrader when you contact any of our trusted traders.

    TrustATrader Guarantee easily covers your next job via TrustATrader to provide extra peace of mind. Click this icon within the listing to register your TrustATrader Guarantee. Find out more

  • Extension Specialists in London. Covering Chelsea, Kensington, Mayfair & Soho

    LINX Design And Build is a family-run business with intensive experience in the building and construction industry. We have been helping customers...

    177 reviews / 4.96 out of 5

    We felt anxious and helpless after a prior builder let us down and left us with a kitchen that had been pulled out. As soon as possible, LINX...

    London
    SW3 5EX

  • Extension Specialists in London. Covering all surrounding areas

    In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the...

    14 reviews / 4.96 out of 5

    Pure Contractors exceeded all our expectations on every level. From the initial consultation right through to the end result. Everyone we dealt...

    London
    SW11 1AA

  • Extension Specialists in London. Covering SW1, SW6, SE13, SW19, KT1, TW1 and all surrounding areas

    AL-KO Construction Ltd is a London-based home extension specialist with more than 12 years' experience delivering high-quality house and bungalow...

    34 reviews / 4.98 out of 5

    Altin's plastering work is second to none! The walls are smooth and flawless, making the room look brand new. Their attention to detail and...

    London
    SE11 4AE

  • Extension Specialists in London. Covering Greater London

    In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the...

    67 reviews / 4.99 out of 5

    Adam and his team did an excellent job refurbishinb the floors of a bathroom and kitchen that had ceramic tiles fitted on the wrong subfloor...

    London
    EC2A 4NJ

  • Extension Specialists in London. Covering West London

    Kaca construction Ltd is a prospective, family run building company based in West London. We provide high quality services in residential...

    11 reviews / 4.98 out of 5

    We recently had our back building converted into a gym by KACA Construction Ltd, and we couldn’t be happier with the results. From the very...

    London
    W5 5QX

  • Don't forget! Please mention TrustATrader when you contact any of our trusted traders.

    TrustATrader Guarantee easily covers your next job via TrustATrader to provide extra peace of mind. Click this icon within the listing to register your TrustATrader Guarantee. Find out more

  • Extension Specialists in Highgate. Covering London and surrounding areas

    UCS offer a comprehensive range of services.Established since 1985, we will ensure all our work is carried out to the highest possible...

    164 reviews / 4.76 out of 5

    I'm really happy with my new bathroom. Richard was a pleasure to work with. He is reliable, communicates well and has lots of good design ideas,...

    Highgate
    London
    N6 5HP

  • Extension Specialists in London. Covering Throughout London

    In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the...

    22 reviews / 4.95 out of 5

    Tom and the team were really helpful, when anything unexpected occurred they ensured to gather all the information to make decision making much easier.

    London
    SE4 1JD

  • Extension Specialists in Finchley. Covering London, Home Counties and all surrounding areas

    In an unstable market, house extensions are often the most viable option, allowing you to maximise the use of your existing space without...

    38 reviews / 4.91 out of 5

    Allan and his team are excellent. Very respectful, punctual and professional. Cannot be happier with the service they provided.

    Finchley
    London
    N3 2AG

  • Extension Specialists in Beckenham. Covering South East England .

    Cromarty Construction Ltd provide first class building services - we carry out all general building works from the ground to the roof...

    31 reviews / 4.69 out of 5

    Michael fixed our rising damp on the walls. He stripped them back to brick and treated and re plastered them to a high finish. He is very...

    Beckenham
    Kent
    BR3 4RH

  • Extension Specialists in Worcester Park. Covering Epsom and all areas within 60 miles.

    The Bleu Group is based in /Epsom and we have been providing high standard house and bungalow extensions for customers in London and the...

    31 reviews / 4.89 out of 5

    We used The Bleu Group for a big house conversion incorporating a new ground floor extension, loft extension and full internal renovation...

    Worcester Park
    KT4 8HZ
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Other services relating to Extension Builders in Chelsea

Our average rating for Extension Builders

4.89 - 4.89 out of 5 from 2225 reviews

  • UCS Construction, Highgate

    5 out of 5.0

    "I'm really happy with my new bathroom. Richard was a pleasure to work with. He is reliable, communicates well and has..."

    Cassie Mayer on 22nd February 2026

  • LINX Design And Build, London

    5 out of 5.0

    "We felt anxious and helpless after a prior builder let us down and left us with a kitchen that had been pulled out. As..."

    Ronald Hunte on 21st February 2026

  • LINX Design And Build, London

    5 out of 5.0

    "Very happy with how our renovation project turned out overall. Although supplies caused a few small delays, there was..."

    Tommy Albro on 19th February 2026

  • RAS Construction & Design Ltd, London

    5 out of 5.0

    "RAS did a superb job for us. They carried out an extensive top-to-bottom refurbishment of our double-fronted Edwardian..."

    Charles Brown on 19th February 2026

  • Den Builders Ltd, Dagenham

    5 out of 5.0

    "We recently had an extension and renovation done by Denbuilders and we’re absolutely delighted with the outcome. Den and..."

    Arjan Shabani on 18th February 2026

Other locations for trusted Extension Builders

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