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  4. Extensions Conversions in London

Extensions Conversions in London

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

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Local Extensions Conversion Specialists

We have found a selection of the best, most reliable Extensions Conversion 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 all surrounding areas

    Art & Build Ltd is a Croydon-based construction company specialising equally in three core areas: loft conversions, house extensions and full...

    7 reviews / 5.0 out of 5

    Project was expertly managed from start to finish. Delighted with the results and had lots of constructive input from Art & Build along the way

    London
    W12 7BQ

  • 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,...

    29 reviews / 4.96 out of 5

    Bubble Level Ltd did a fantastic job designing and installing our new kitchen. The workmanship was of a very high standard, and we’re delighted...

    London
    N18 1HP

  • Extension Specialists in London. Covering Herts, Middx, and all areas of North and North West London.

    RAS Construction & Design Ltd is a well established company specialising in all aspects of extensions, loft conversions, general building,...

    39 reviews / 4.95 out of 5

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

    London
    Hertfordshire
    NW7 0AN

  • 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 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...

    69 reviews / 5.0 out of 5

    We've renovated before and know how difficult it can be to find reliable builders. Nova restored our faith. The team genuinely cared about doing...

    London
    EC2A 4NJ

  • 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 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. 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.

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

    13 reviews / 4.95 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

    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 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
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Other services relating to Extensions Conversions in London

Our average rating for Extensions Conversions

5.0 - 5.0 out of 5 from 2728 reviews

  • Level Up London Ltd, Romford

    5 out of 5.0

    "A brilliant team. Andrew is excellent with communication and his commitment to doing a good job is so evident. The team..."

    Lucy Hobbs on 11th October 2026

  • Level Up London Ltd, Romford

    5 out of 5.0

    "Absolutely superb! I could not recommend Andrew and his team more highly. I am had a complex job involving a window..."

    Lucy Hobbs on 11th October 2026

  • R&J Building Services Ltd, Shefford

    5 out of 5.0

    "Absolutely brilliant. I asked Jon at R&J to quote for removing my old conservatory and replace with a wooden open topped..."

    Henry Titley on 11th October 2026

  • Nevill Construction Ltd, Bishop's Stortford

    5 out of 5.0

    "Dan and Danny are absolutely amazing! They did a fantastic job on our loft conversion, and we couldn’t be happier with..."

    Derek Tills on 10th October 2026

  • Nevill Construction Ltd, Bishop's Stortford

    5 out of 5.0

    "Dan and his team did an excellent job from start to finish. They were professional, friendly and reliable, and the..."

    Rachel Handel on 10th October 2026

Other locations for trusted Extensions Conversion Specialists

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