Extensions / Conversions in Coleford (22)

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  • Mint Construction & Maintenance Ltd Logo

    Mint Construction & Maintenance Ltd

    9.79

    (39 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Refurbishments
    Fire and Flood Renovation
    Call
  • Constructs Building Ltd Logo

    Constructs Building Ltd

    9.89

    (12 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Fire and Flood Renovation
    Insurance Claim Specialist
    Call
  • Alexanders' Property Development Limited Logo

    Alexanders' Property Development Limited

    9.86

    (56 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Warehouse Racking
    Workshop Design / Construction
    Garden Studios
    Call
  • Rockfield Property Services Logo

    Rockfield Property Services

    10.00

    (81 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Mastic Sealant
    Core Drilling
    Call
  • Cla Developments Ltd Logo

    Cla Developments Ltd

    9.78

    (6 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Diamond Drilling
    Core Drilling
    Repair and Listed Building Specialist
    Call
  • MLP Carpentry and Building Logo

    MLP Carpentry and Building

    9.97

    (10 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Core Drilling
    Foundations
    Cladding
    Call
  • GSS BUSINESS LTD Logo

    GSS BUSINESS LTD

    9.83

    (2 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Agricultural Building
    Warehouse Racking
    Call
  • KB Contractors Logo

    KB Contractors

    9.67

    (60 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Warehouse Racking
    Core Drilling
    Call
  • T G Building Properties LTD Logo

    T G Building Properties LTD

    9.67

    (1 review)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Sustainable Construction
    New Builds
    Garden Studios
    Call
  • Haydon Builders Ltd Logo

    Haydon Builders Ltd

    9.93

    (14 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Concrete Garages
    Car Ports
    Call
  • Grayswood Construction Ltd Logo

    Grayswood Construction Ltd

    9.60

    (13 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Structural Design
    Heritage Property Specialist
    Call
  • R&M General Building Ltd Logo

    R&M General Building Ltd

    9.96

    (28 reviews)

    Operates in Coleford

    Services & skills
    Builder
    Extensions / Conversions
    Building Merchants
    Warehouse Racking
    Partition Walls
    Call

Top rated Extensions / Conversions in Coleford

10

/10

101 ratings

Our Extensions / Conversions in Coleford are rated an average of 10 out of 10 based on a sample of 101 reviews from customers like you*

*This review aggregate is based on real customer reviews from a randomly selected postcode in this area

Conversion and extension builders in Coleford

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

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 Coleford

Our checked tradespeople in Coleford 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 Coleford

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

Extensions:

£36882 on average, with prices typically starting at £23612 up to £57427.

Loft conversions:

£40094 on average, with prices typically starting at £27331 up to £57937.

Garage conversions:

£11815 on average, with prices typically starting at £8366 up to £16687.

Conservatory roof conversions:

£8560 on average, with prices typically starting at £6006 up to £12273.

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 Coleford: 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 Coleford

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

Find the right extension or conversion specialist in Coleford

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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