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Extension Builders in Ilminster (22)

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  • G A Giles & Sons Logo

    G A Giles & Sons

    10.00

    (28 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    Fire and Flood Renovation
    Garden Studios
    Call
  • Sbssw ltd Logo

    Sbssw ltd

    10.00

    (109 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Brick / Concrete Structural Repairs
    Wall Tie Replacements
    Call
  • Home Arc Ltd Logo

    Home Arc Ltd

    10.00

    (13 reviews)

    Operates in Ilminster

    Suggested Services
    Architectural Plan Design and Submission
    £3,799 / job
    Call
  • M Dunston Building Contractors Logo

    M Dunston Building Contractors

    10.00

    (28 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Insurance Claim Specialist
    Refurbishments
    Call
  • Complete Carpentry & Building Contractors Ltd Logo

    Complete Carpentry & Building Contractors Ltd

    10.00

    (46 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Loft Conversions
    Partition Walls
    Call
  • S & R Construction (South West) Limited Logo

    S & R Construction (South West) Limited

    (10 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Fire and Flood Renovation
    Loft Conversions
    Demolition
    Call
  • Sparrow Carpentry And Building Logo

    Sparrow Carpentry And Building

    10.00

    (47 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Sustainable Construction
    Loft Conversions
    Warehouse Racking
    Call
  • M Bambury Building Logo

    M Bambury Building

    10.00

    (28 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Project Management
    Suspended Ceilings
    Foundations
    Call
  • Brick Builds Logo

    Brick Builds

    10.00

    (36 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Concreting
    General Building
    Call
  • LILUX DEVELOPMENTS LIMITED Logo

    LILUX DEVELOPMENTS LIMITED

    10.00

    (3 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Equestrian Stable
    Concreting
    Agricultural Building
    Call
  • Butler Group Construction Logo

    Butler Group Construction

    9.92

    (18 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Wall Tie Replacements
    Sustainable Construction
    Call
  • L&R refurbishments LTD Logo

    L&R refurbishments LTD

    9.83

    (124 reviews)

    Operates in Ilminster

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Demolition
    Agricultural Building
    Call

Conversion and extension builders in Ilminster

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

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 Ilminster

Our checked tradespeople in Ilminster 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 Ilminster

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 Ilminster: 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 Ilminster

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

Find the right extension or conversion specialist in Ilminster

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


Looking for more tradespeople in Ilminster?

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