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Garage Conversion Specialists in Gloucestershire (18)

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  • Heritage Roofing Building & Property Maintenance Logo

    Heritage Roofing Building & Property Maintenance

    10.00

    (116 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Heritage Property Specialist
    Partition Walls
    Call
  • Care Construction Limited Logo

    Care Construction Limited

    (6 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Sustainable Construction
    Refurbishments
    Garage Conversions
    Call
  • Newman Construction & Sons Ltd Logo

    Newman Construction & Sons Ltd

    9.96

    (118 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Steel Fabrication
    Refurbishments
    Loft Conversions
    Call
  • Constructs Building Ltd Logo

    Constructs Building Ltd

    10.00

    (6 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Basement / Cellar Conversions
    Agricultural Building
    Call
  • SM BUILDING & ROOFING LIMITED Logo

    SM BUILDING & ROOFING LIMITED

    9.44

    (6 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Period Property Restoration
    Foundations
    Property Maintenance / Repair
    Call
  • GSPR Developments Ltd Logo

    GSPR Developments Ltd

    (101 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    New Builds
    Call
  • RPM Building Services Limited Logo

    RPM Building Services Limited

    9.33

    (19 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Heritage Property Specialist
    Insurance Claim Specialist
    Call
  • EDEN FACILITIES & PROPERTY MANAGEMENT LTD Logo

    EDEN FACILITIES & PROPERTY MANAGEMENT LTD

    10.00

    (9 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Heritage Property Specialist
    Refurbishments
    Call
  • UKES Construction Services Limited Logo

    UKES Construction Services Limited

    9.67

    (2 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Basement / Cellar Conversions
    Sustainable Construction
    Call
  • Caarjo. Building & Landscapes Logo

    Caarjo. Building & Landscapes

    10.00

    (23 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Workshop Design / Construction
    Wall Tie Replacements
    Call
  • Alexanders' Property Development Limited Logo

    Alexanders' Property Development Limited

    9.89

    (52 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Period Property Restoration
    Equestrian Stable
    Call
  • Ricky The Bricky Logo

    Ricky The Bricky

    9.96

    (30 reviews)

    Operates in Gloucestershire

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Emergency Builder Service
    Refurbishments
    Call

Conversion and extension builders in Gloucestershire

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

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 Gloucestershire

Our checked tradespeople in Gloucestershire 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

Costs to expect

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

Single - storey extensions: £21,000 - £65,000

Double - storey extensions: £55,000 - £95,000

Loft conversions: £35,000 - £65,000

Garage conversions: £8,000 - £20,000

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 Gloucestershire: 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 Gloucestershire

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

Find the right extension or conversion specialist in Gloucestershire

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

Looking for more tradespeople in Gloucestershire?

Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in Gloucestershire and check out our latest home improvement guides.