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Loft Extensions in KT18 (230)

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  • Dobruna Construction Limited Logo

    Dobruna Construction Limited

    10.00

    (24 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Workshop Design / Construction
    Suspended Ceilings
    Mastic Sealant
    Call
  • Surrey build ltd Logo

    Surrey build ltd

    10.00

    (12 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Foundations
    Property Maintenance / Repair
    Warehouse Racking
    Call
  • Ni Building Services Ltd Logo

    Ni Building Services Ltd

    9.78

    (65 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    New Builds
    Extensions / Conversions
    Structural Design
    Call
  • Prestige Construction Management Limited Logo

    Prestige Construction Management Limited

    9.94

    (53 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Partition Walls
    Basement / Cellar Conversions
    Project Management
    Call
  • Nexgen Builders Limited Logo

    Nexgen Builders Limited

    9.36

    (5 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Project Management
    Garage Conversions
    Extensions / Conversions
    Call
  • Comfort Plus Refurbishments Ltd Logo

    Comfort Plus Refurbishments Ltd

    9.88

    (11 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    General Building
    Garage Conversions
    Basement / Cellar Conversions
    Call
  • Kastrati Building Maintenance Logo

    Kastrati Building Maintenance

    9.87

    (37 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Garden Studios
    Garage Conversions
    Extensions / Conversions
    Call
  • Murray Builders

    9.96

    (184 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Wall Tie Replacements
    Insurance Claim Specialist
    Demolition
    Call
  • Ascent Loft Conversions Ltd Logo

    Ascent Loft Conversions Ltd

    9.67

    (18 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    Heritage Property Specialist
    Garden Studios
    Garage Conversions
    Call
  • Construction Solution Services Limited Logo

    Construction Solution Services Limited

    9.96

    (25 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    New Builds
    Extensions / Conversions
    Demolition
    Call
  • Concept Logo

    Concept

    9.89

    (115 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    New Builds
    Refurbishments
    Fire and Flood Renovation
    Call
  • London Construction Partnership Logo

    London Construction Partnership

    9.87

    (12 reviews)

    Operates in KT18

    Services & skills
    Builder
    Loft Conversions
    General Building
    Brick / Concrete Structural Repairs
    Garage Conversions
    Call

Loft conversions in KT18

Planning a loft conversion in KT18? 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 KT18 without the hassle

With Checkatrade, you can find checked loft conversion companies in KT18 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 KT18 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 KT18

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 KT18

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

Average cost of a loft conversion in KT18

Loft conversions:

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Loft ladder installers:

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Loft window installation:

Expect to pay [pricing[3].KT18.[Loft Windows Installation].[averagePriceFormatted]] on average, with prices typically starting at [pricing[3].KT18.[Loft Windows Installation].[lowPriceFormatted]] up to [pricing[3].KT18.[Loft Windows Installation].[highPriceFormatted]].

Roof light installation:

Expect to pay [pricing[4].KT18.[Roof Lights Installation].[averagePriceFormatted]] on average, with prices typically starting at [pricing[4].KT18.[Roof Lights Installation].[lowPriceFormatted]] up to [pricing[4].KT18.[Roof Lights Installation].[highPriceFormatted]].

Dormer windows:

Expect to pay [pricing[5].KT18.[Dormer / Roof Windows].[averagePriceFormatted]] on average, with prices typically starting at [pricing[5].KT18.[Dormer / Roof Windows].[lowPriceFormatted]] up to [pricing[5].KT18.[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 KT18: 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 KT18

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

Search for emergency loft conversion services in KT18 to find available trades fast.

Find a loft conversion builder for your job in KT18

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 KT18?

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