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Extensions / Conversions in Sidmouth (24)

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  • Howard Foster Building Services Logo

    Howard Foster Building Services

    9.86

    (40 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Brick / Concrete Structural Repairs
    Garage Conversions
    Call
  • Top 2 Bottom Maintenance & Construction Ltd Logo

    Top 2 Bottom Maintenance & Construction Ltd

    10.00

    (2 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Cladding
    Period Property Restoration
    Call
  • G.T.S Bricklaying Ltd Logo

    G.T.S Bricklaying Ltd

    9.33

    (18 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Concreting
    Cladding
    Call
  • SB Minor Works

    9.89

    (190 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Warehouse Racking
    Property Maintenance / Repair
    Garage Conversions
    Call
  • The Renovation Company (South West) Ltd Logo

    The Renovation Company (South West) Ltd

    10.00

    (11 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Fire and Flood Renovation
    General Building
    Brick / Concrete Structural Repairs
    Call
  • Brick Builds Logo

    Brick Builds

    10.00

    (36 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Sustainable Construction
    Structural Steels
    Call
  • LILUX DEVELOPMENTS LIMITED Logo

    LILUX DEVELOPMENTS LIMITED

    10.00

    (3 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Fire and Flood Renovation
    Agricultural Building
    Call
  • Butler Group Construction Logo

    Butler Group Construction

    9.92

    (18 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    New Builds
    Concreting
    Call
  • CJS Groundworks Ltd Logo

    CJS Groundworks Ltd

    10.00

    (14 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    Car Ports
    Project Management
    Call
  • NS Crafted Logo

    NS Crafted

    10.00

    (12 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Equestrian Stable
    Fire and Flood Renovation
    Call
  • Danebury Building Services (Devon) Ltd.

    (0 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    Garage Conversions
    Fire and Flood Renovation
    Call
  • L Squared Construction Logo

    L Squared Construction

    10.00

    (5 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Demolition
    Car Ports
    Call

Conversion and extension builders in Sidmouth

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

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 Sidmouth

Our checked tradespeople in Sidmouth 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 Sidmouth

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 Sidmouth: 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 Sidmouth

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

Find the right extension or conversion specialist in Sidmouth

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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