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Extensions / Conversions in Redhill (160)

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    LMB Group Ltd Logo

    LMB Group Ltd

    9.40

    (186 reviews)

    Operates in Redhill

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

    LMB Group Ltd

    9.40

    (186 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Call
  • Dobruna Construction Limited Logo

    Dobruna Construction Limited

    10.00

    (23 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Core Drilling
    Basement / Cellar Conversions
    Wall Tie Replacements
    Call
  • A H Construction (Surrey) Ltd Logo

    A H Construction (Surrey) Ltd

    9.67

    (38 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Garage Conversions
    Call
  • Proficient Property Services LTD Logo

    Proficient Property Services LTD

    9.98

    (21 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Foundations
    Fire and Flood Renovation
    Call
  • SM GB CONTRACTORS LTD Logo

    SM GB CONTRACTORS LTD

    (11 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Loft Conversions
    Garage Conversions
    Call
  • LS Plastering & Building Logo

    LS Plastering & Building

    9.75

    (8 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Workshop Design / Construction
    Concreting
    Suspended Ceilings
    Call
  • Z H Refurbishment Ltd Logo

    Z H Refurbishment Ltd

    9.47

    (24 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Call
  • Kosta & Sons Logo

    Kosta & Sons

    10.00

    (174 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Loft Conversions
    Garage Conversions
    Call
  • Kastrati Building Maintenance Logo

    Kastrati Building Maintenance

    9.87

    (37 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Refurbishments
    Garage Conversions
    Call
  • MS Property Services Logo

    MS Property Services

    9.81

    (304 reviews)

    Operates in Redhill

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Fire and Flood Renovation
    Structural Steels
    Call
  • Anant Design And Build Limited Logo

    Anant Design And Build Limited

    10.00

    (12 reviews)

    Operates in Redhill

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

Conversion and extension builders in Redhill

Planning a loft conversion, garage makeover or full house extension in Redhill? 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 Redhill

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 Redhill

Our checked tradespeople in Redhill 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 Redhill

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 Redhill: 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 Redhill

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 Redhill? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in Redhill

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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