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  4. Extension Specialists in London

Extension Specialists in London

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

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Local Extension Specialists

We have found a selection of the best, most reliable Extension Specialists 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.

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  • Extension Specialists in London. Covering Greater London

    Den Builders LtdInnovative. Reliable. Family-Run Construction Experts.Based in Greater London, Den Builders Ltd is a trusted, family-run...

    9 reviews / 5.0 out of 5

    We had a great experience with Denbuilders! Den built our home extension and managed the entire project from start to finish. He was professional,...

    London
    SE9 1PF

  • Extension Specialists in London. Covering London

    Bubble Level Ltd provides home extensions and extension planning for homeowners across London and the surrounding area. In an unstable market,...

    27 reviews / 4.96 out of 5

    Would recommend them and very customer service provided. Good quality workmanship and knowledgeable about the service they provide.

    London
    N18 1HP

  • Extension Specialists in London. Covering Throughout London

    About Us21st Century Design & Build Ltd is a London-based design and build specialist offering high-quality house and bungalow extensions across...

    26 reviews / 4.96 out of 5

    I was very satisfied with the work carried out by Thomas and his team to recently install 3 windows in my property. The job was completed within a...

    London
    SE4 1JD

  • Extension Specialists in London. Covering the whole of London and the surrounding areas

    Powerpillar Ltd is based in London and we have been providing high standard house and bungalow extensions for customers in London and the...

    91 reviews / 4.88 out of 5

    We are delighted with the office refurbishment completed by Powerpillar Ltd. Their team delivered a professional, high-quality service from start...

    London
    E10 7QP

  • Extension Specialists in London. Covering East and North London, North West London, Central London and 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...

    60 reviews / 4.94 out of 5

    Bright Builders are an amazing team of friendly, responsible and professional builders. Ervin is a great person to work with; understanding,...

    London
    E17 7LP

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

    TrustATrader Guarantee for extra peace of mind. 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...

    198 reviews / 4.97 out of 5

    Happy my family with the work done on the roof, kitchen, bathroom and addition to our property. The group was amiable, dependable, and incredibly...

    London
    SW3 5EX

  • 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 North London, North West London and all surrounding areas.

    Chelebi Builders is a Build & Design construction company based in North London. Our expertise range from Loft Conversions, Extensions, House...

    31 reviews / 4.96 out of 5

    Chelebi carried out a side and rear extension on our Victorian semi detached. Cafer and his team pulled out all stops to ensure works were...

    London
    Greater London
    N12 0DR

  • Extension Specialists in London.

    Level Up London Ltd provides home extension specialists across London, helping homeowners create more space without the stress of moving. With...

    11 reviews / 4.94 out of 5

    Andrew and Peter were great. They understood what we wanted, worked quickly and efficiently, and answered the hundreds of questions I had. They...

    London
    E4 9BX

  • Extension Specialists in London. Covering all surrounding areas within a twenty mile radius

    Welcome to Prime Construction Services LtdWe are builders based in London that have been successfully completing work in the area for many...

    17 reviews / 4.93 out of 5

    One of the few contractors out there who were honest, patient with our indecisiveness and flexible in their approach with us. Prime Construction...

    London
    N12 9LY
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Other services relating to Extension Specialists in London

Our average rating for Extension Specialists

5.0 - 5.0 out of 5 from 2720 reviews

  • Level Up London Ltd, Romford

    4 out of 5.0

    "Andrew and Peter were great. They understood what we wanted, worked quickly and efficiently, and answered the hundreds of..."

    Tilda Stephens on 6th October 2026

  • Lukpol Building Services Ltd, Borehamwood

    5 out of 5.0

    "I got a couple of quotes but went with Lucasz because he sounded experienced. I thought my job was complicated as it..."

    Rosemary Carney on 4th October 2026

  • DSL Brickwork Ltd, Rayleigh

    5 out of 5.0

    "Have used DSL before - they would always be my go to for any building work big or small."

    Robert Murphy on 2nd October 2026

  • LD & C Homes Ltd, Sidcup

    5 out of 5.0

    "Really pleased with the garden room LD&C Homes Ltd built for us. We wanted a proper space to use as a home office and..."

    Connor Nelson on 1st October 2026

  • 21st Century Design & Build Ltd, London

    5 out of 5.0

    "I was very satisfied with the work carried out by Thomas and his team to recently install 3 windows in my property. The..."

    Howard Davis on 1st October 2026

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