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Extension Builders in Yeovil (26)

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  • I J Builders Logo

    I J Builders

    10.00

    (217 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Workshop Design / Construction
    Garage Conversions
    Call
  • Matt Best Complete Building Services Logo

    Matt Best Complete Building Services

    9.90

    (155 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Period Property Restoration
    Repair and Listed Building Specialist
    Garden Studios
    Call
  • G A Giles & Sons Logo

    G A Giles & Sons

    10.00

    (28 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Structural Design
    Steel Fabrication
    Heritage Property Specialist
    Call
  • Sbssw ltd Logo

    Sbssw ltd

    10.00

    (109 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Fire and Flood Renovation
    Brick / Concrete Structural Repairs
    Call
  • N Cook Building and Plastering Services Logo

    N Cook Building and Plastering Services

    9.50

    (58 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Foundations
    Suspended Ceilings
    Call
  • Home Arc Ltd Logo

    Home Arc Ltd

    10.00

    (13 reviews)

    Operates in Yeovil

    Suggested Services
    Architectural Plan Design and Submission
    £3,799 / job
    Call
  • Complete Carpentry & Building Contractors Ltd Logo

    Complete Carpentry & Building Contractors Ltd

    10.00

    (46 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    General Building
    Refurbishments
    Call
  • M Dunston Building Contractors Logo

    M Dunston Building Contractors

    10.00

    (28 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Brick / Concrete Structural Repairs
    Equestrian Stable
    Call
  • Chris The Builder Logo

    Chris The Builder

    10.00

    (68 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Foundations
    Garage Conversions
    Concreting
    Call
  • S & R Construction (South West) Limited Logo

    S & R Construction (South West) Limited

    (10 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Mastic Sealant
    Concrete Garages
    Call
  • Sparrow Carpentry And Building Logo

    Sparrow Carpentry And Building

    10.00

    (47 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Equestrian Stable
    General Building
    Call
  • H M Building And Landscaping Logo

    H M Building And Landscaping

    9.83

    (20 reviews)

    Operates in Yeovil

    Services & skills
    Builder
    Extensions / Conversions
    Equestrian Stable
    Fire and Flood Renovation
    Car Ports
    Call

Conversion and extension builders in Yeovil

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

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 Yeovil

Our checked tradespeople in Yeovil 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 Yeovil

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 Yeovil: 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 Yeovil

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

Find the right extension or conversion specialist in Yeovil

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 Yeovil?

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