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Loft Extensions in Acton (280)

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  • Approved Building Solutions Logo

    Approved Building Solutions

    9.94

    (72 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Concrete Garages
    Brick / Concrete Structural Repairs
    Wall Tie Replacements
    Call
  • Blueprint Builders Logo

    Blueprint Builders

    9.79

    (59 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    New Builds
    Refurbishments
    Extensions / Conversions
    Call
  • Maben Construction Ltd Logo

    Maben Construction Ltd

    9.97

    (63 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Garage Conversions
    Demolition
    Garden Studios
    Call
  • SM London Construction Ltd Logo

    SM London Construction Ltd

    10.00

    (111 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Fire and Flood Renovation
    Extensions / Conversions
    Warehouse Racking
    Call
  • Urzica Builders Ltd Logo

    Urzica Builders Ltd

    (10 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    General Building
    Refurbishments
    Call
  • GG Construction & Design Ltd Logo

    GG Construction & Design Ltd

    9.96

    (18 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Basement / Cellar Conversions
    Garden Studios
    Sustainable Construction
    Call
  • Luca Buildings Services Limited Logo

    Luca Buildings Services Limited

    10.00

    (33 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    Refurbishments
    Basement / Cellar Conversions
    Call
  • NASIMI UK CONSTRUCTION LTD Logo

    NASIMI UK CONSTRUCTION LTD

    10.00

    (14 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Demolition
    Building Merchants
    General Building
    Call
  • Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    Call
  • G&V London Construction Ltd Logo

    G&V London Construction Ltd

    10.00

    (20 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Concrete Garages
    Agricultural Building
    Cladding
    Call
  • SEDCO Design & Build Logo

    SEDCO Design & Build

    9.14

    (3 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Partition Walls
    Property Maintenance / Repair
    Foundations
    Call
  • Elegance Construction Ltd Logo

    Elegance Construction Ltd

    10.00

    (76 reviews)

    Operates in Acton

    Services & skills
    Builder
    Loft Conversions
    Partition Walls
    Mastic Sealant
    Heritage Property Specialist
    Call

Loft conversion in Acton

Looking for a loft conversion specialist in Acton doesn’t need to be complicated. We can help you find checked loft conversion builders and companies who cover your local area.

  • Search our website for loft conversion companies in Acton and contact them directly.

  • Try our quick and easy request a quote feature. If you’re short on time, give us the details of your job and we’ll forward these to three loft conversion builders. They’ll then get in touch, either asking for further information or to arrange a quote.

What types of loft conversion are available?

Common loft conversions include:

  • Dormer: Adds extra floor space by extending the roof vertically
  • Velux: Uses roof windows without major structural changes
  • Mansard: Involves steepening one roof slope to maximize space
  • Hip-to-Gable: Converts a sloped roof into a vertical wall to create more space

How much does a loft conversion cost?

The average loft conversion in the UK costs around £40,000, though this depends on the type of conversion, size of the loft, roof structure, and your location.

For example, dormer conversions typically cost around £45,000, while Velux conversions start at about £27,500.

Additional costs may include electrics, flooring, bathrooms, and underfloor heating.

Do I need planning permission?

Not all loft conversions require planning permission. Many conversions fall under permitted development rights.

However, you will need permission if you live in a listed building, a conservation area, or plan to alter the shape or height of your roof.

It’s always worth checking with your local planning authority to be on the safe side.

How long does a loft conversion take?

Timescales vary depending on the type of conversion. As a rough guide:

  • Velux conversions: 4–6 weeks
  • Dormer conversions: 10–12 weeks
  • Mansard conversions: 8–10 weeks

Browse checked loft conversion specialists who cover Acton on Checkatrade and get in touch to start the ball rolling and bring your project to life.


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