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Loft Conversions in SW17 (261)

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  • Sponsored
    District Construction Ltd Logo

    District Construction Ltd

    (6 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Basement / Cellar Conversions
    Concrete Garages
    Repair and Listed Building Specialist
    Call
  • Sponsored
    Ascent Loft Conversions Ltd Logo

    Ascent Loft Conversions Ltd

    10.00

    (19 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Garden Studios
    Garage Conversions
    Refurbishments
    Call
  • Haze Construction Limited Logo

    Haze Construction Limited

    9.97

    (83 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Refurbishments
    Period Property Restoration
    Heritage Property Specialist
    Call
  • A2z Constructions & Heating Ltd Logo

    A2z Constructions & Heating Ltd

    9.67

    (43 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Cladding
    Property Maintenance / Repair
    Garden Studios
    Call
  • Waymore Home Ltd Logo

    Waymore Home Ltd

    9.97

    (78 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Suspended Ceilings
    Demolition
    Concreting
    Call
  • Prestige Construction Management Limited Logo

    Prestige Construction Management Limited

    9.87

    (55 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    Cladding
    Brick / Concrete Structural Repairs
    Call
  • UNITED RENOVATIONS LTD Logo

    UNITED RENOVATIONS LTD

    10.00

    (5 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Basement / Cellar Conversions
    Extensions / Conversions
    Refurbishments
    Call
  • URBA.MN LTD Logo

    URBA.MN LTD

    10.00

    (7 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    Property Maintenance / Repair
    Emergency Builder Service
    Call
  • Emy 6 Construct Logo

    Emy 6 Construct

    9.90

    (15 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Car Ports
    Garden Studios
    Concreting
    Call
  • Build Mode Limited Logo

    Build Mode Limited

    10.00

    (35 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Foundations
    General Building
    Wall Tie Replacements
    Call
  • Loran Design and Build Ltd Logo

    Loran Design and Build Ltd

    (18 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Extensions / Conversions
    New Builds
    Project Management
    Call
  • Subam Constructions Ltd Logo

    Subam Constructions Ltd

    (11 reviews)

    Operates in SW17

    Services & skills
    Builder
    Loft Conversions
    Sustainable Construction
    Partition Walls
    Mastic Sealant
    Call

Loft conversions in SW17

Planning a loft conversion in SW17? Whether you’re dreaming of a new bedroom, a home office, or just more space to breathe, we’re here to help.

Find rated loft conversion builders in SW17 without the hassle

With Checkatrade, you can find checked loft conversion companies in SW17 and get quotes from trades who cover your area, fast. No faff. Just a simple way to turn that empty attic into something brilliant.

Post your job in minutes or browse reviewed SW17 loft conversion builders near you. It’s free to use, and you’re in control every step of the way.

What to expect from hiring a loft conversion builder in SW17

Loft conversions are one of the most popular ways to add space (and value) to a home. Here’s what you need to know:

Common loft conversion jobs in SW17

  • Dormer loft conversions
  • Hip-to-gable conversions
  • Velux (rooflight) conversions
  • Mansard conversions
  • Bungalow loft extensions

Average cost of a loft conversion in SW17

Loft conversions:

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Loft ladder installers:

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Loft window installation:

Expect to pay [pricing[3].SW17.[Loft Windows Installation].[averagePriceFormatted]] on average, with prices typically starting at [pricing[3].SW17.[Loft Windows Installation].[lowPriceFormatted]] up to [pricing[3].SW17.[Loft Windows Installation].[highPriceFormatted]].

Roof light installation:

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Dormer windows:

Expect to pay [pricing[5].SW17.[Dormer / Roof Windows].[averagePriceFormatted]] on average, with prices typically starting at [pricing[5].SW17.[Dormer / Roof Windows].[lowPriceFormatted]] up to [pricing[5].SW17.[Dormer / Roof Windows].[highPriceFormatted]].

Explore our loft conversion cost guide for a detailed breakdown.

What’s included in a loft conversion quote?

  • Design and structural plans
  • Building work and insulation
  • Stairs, electrics, plumbing
  • Windows, flooring, and finishes

Extra costs to think about:

  • Architect or structural engineer fees
  • Planning permission (if required)
  • Bathrooms or heating upgrades
  • Underfloor heating or bespoke storage

How long does a loft conversion take?

Velux: 4 - 6 weeks

Dormer: 10 - 12 weeks

Mansard: 8 - 10 weeks

Loft conversions in SW17: Homeowners vs renters

If you own your home:

  • You’re responsible for planning, permissions, and hiring.
  • Check if you need planning permission; many lofts fall under permitted development, but not all.
  • Building regulations always apply. A loft conversion without sign-off could cause issues later (including invalidating home insurance).

If you rent:

  • You can’t carry out major work like a loft conversion.
  • Speak to your landlord if you notice issues in the loft space (leaks, insulation problems etc.).
  • If you spot an unregulated loft conversion, flag it with your landlord or letting agent.

Emergency loft conversion help in SW17

Need urgent loft work like a leak, collapsed ceiling, or unsafe structure? We’ve got you.

Search for emergency loft conversion services in SW17 to find available trades fast.

Find a loft conversion builder for your job in SW17

Here are some common requests from homeowners and renters alike:

  • Loft boarding or insulation
  • Full loft extensions
  • Velux or dormer installations
  • Bungalow loft conversion design
  • Loft conversion quotes
  • Structural inspections or fixes
  • Loft stairs installation
  • Loft storage or lighting upgrades
  • Fixing illegal or unregulated conversions

Use our request a quote feature; it’s a quick, easy way to get responses from loft builders covering your local area.


Looking for more tradespeople in SW17?

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