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Extensions / Conversions in Petts Wood (257)

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  • Sponsored
    Dwl Construction Ltd Logo

    Dwl Construction Ltd

    9.60

    (30 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Garage Conversions
    Structural Steels
    Call
  • Martile Limited Logo

    Martile Limited

    10.00

    (23 reviews)

    Operates in Petts Wood

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

    Pulman Construction Ltd

    9.75

    (51 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Basement / Cellar Conversions
    New Builds
    Call
  • Alfa Quality Construction Ltd Logo

    Alfa Quality Construction Ltd

    9.88

    (30 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Demolition
    Emergency Builder Service
    Call
  • Murati Ltd Logo

    Murati Ltd

    10.00

    (52 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    Structural Steels
    General Building
    Call
  • YX General Builder Logo

    YX General Builder

    9.94

    (35 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Refurbishments
    General Building
    Call
  • LMB Group Ltd Logo

    LMB Group Ltd

    9.40

    (186 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Call
  • Truestone Construction Ltd Logo

    Truestone Construction Ltd

    10.00

    (8 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    General Building
    Cladding
    Call
  • New Eltham Construction & Building - NECB Logo

    New Eltham Construction & Building - NECB

    9.95

    (23 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Fire and Flood Renovation
    Insurance Claim Specialist
    Suspended Ceilings
    Call
  • Robinson Construction Surrey Ltd Logo

    Robinson Construction Surrey Ltd

    10.00

    (77 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Cladding
    Basement / Cellar Conversions
    Call
  • Thima Green Ltd Logo

    Thima Green Ltd

    9.83

    (170 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Loft Conversions
    Call
  • Construction Solution Services Limited Logo

    Construction Solution Services Limited

    9.96

    (25 reviews)

    Operates in Petts Wood

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Fire and Flood Renovation
    Refurbishments
    Call

Conversion and extension builders in Petts Wood

Planning a loft conversion, garage makeover or full house extension in Petts Wood? You’re in the right place. Whether you’re adding space for a growing family, upgrading your layout or increasing your home’s value, we can help you find the right tradesperson for the job.

Find extension and conversion builders in Petts Wood

Every builder on Checkatrade passes up to 12 checks before they appear in your search. You can read verified reviews, compare services, and even post your job to get quotes straight to your inbox, all in a few clicks. That’s how we help homeowners like you get a job done right.

What to expect from hiring an extension or conversion builder in Petts Wood

Our checked tradespeople in Petts Wood cover a wide range of projects, including:

  • Single or double-storey house extensions

  • Kitchen and diner extensions

  • Loft, attic, garage or basement conversions

  • Garden room extensions

  • Utility room extensions

  • Over-garage extensions and side returns

Extension and conversion build costs in Petts Wood

Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:

Extensions:

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Loft conversions:

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Garage conversions:

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Conservatory roof conversions:

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Need help calculating costs? Use our Job Value Estimator Tool for a bespoke cost estimate.

What to check before you hire:

  • Are drawings or planning permissions needed?
  • Are they familiar with building regs?
  • Is the quote fixed or flexible?
  • Does it cover materials and project management?

Most builders will include prep, construction, electrics, plumbing and final finishes in their quote, but always double-check. Timelines range from a few weeks for simple jobs to several months for bigger builds.

Extension and conversion builders in Petts Wood: Homeowners vs renters

Homeowners:

You’re in charge of the project. That means hiring the builder, securing permissions, and paying for the work. You may need:

  • Planning permission (especially for double-storey builds or changes near boundaries)

  • Drawings from an architect or structural engineer

  • Building regs approval

If you’re not sure where to start, speak to a local builder or post your job to get help with the process.

Renters:

You’ll usually need your landlord’s approval to make any big changes. In most cases, your landlord will be the one arranging and paying for structural changes like loft conversions or extensions. That said, it’s worth flagging ideas if you think they’ll improve the property, especially if it means longer tenancies or fewer repairs.

Emergency extension or conversion help in Petts Wood

Extensions and conversions are big projects, but sometimes, things go wrong and need sorting fast. Common urgent issues include:

  • Leaks in newly converted lofts

  • Structural cracks or shifting

  • Faulty electrics or plumbing in newly added rooms

  • Incomplete work by previous builders

Facing an emergency in Petts Wood? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in Petts Wood

Looking for a builder to help with:

  • Rear house extensions
  • Kitchen extensions
  • Garage conversions
  • Loft or attic conversions
  • Garden room builds
  • Basement or cellar conversions
  • Conservatory roof upgrades
  • Utility or porch extensions

Start your search now


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