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Extensions / Conversions in Castle Donington (34)

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  • Cliffords.homeimprovements Logo

    Cliffords.homeimprovements

    9.89

    (48 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Garage Conversions
    General Building
    Call
  • YAN&MIL CONSTRUCTION LTD Logo

    YAN&MIL CONSTRUCTION LTD

    9.91

    (24 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Equestrian Stable
    Structural Steels
    Call
  • X P B CONSTRUCTION LTD Logo

    X P B CONSTRUCTION LTD

    10.00

    (3 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Garden Studios
    Brick / Concrete Structural Repairs
    Call
  • BG Building Services Logo

    BG Building Services

    9.56

    (130 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Garage Conversions
    Cladding
    Call
  • M2 Construction & Development Ltd

    10.00

    (15 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Demolition
    Property Maintenance / Repair
    Call
  • Razor Developments Logo

    Razor Developments

    9.73

    (48 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Wall Tie Replacements
    Stretched Ceilings
    Call
  • PG Construction MG Logo

    PG Construction MG

    10.00

    (4 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Project Management
    Foundations
    Call
  • Result Construction & Maintenance Logo

    Result Construction & Maintenance

    9.90

    (19 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Concreting
    Refurbishments
    Call
  • Orangery Concepts Ltd Logo

    Orangery Concepts Ltd

    9.96

    (28 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Equestrian Stable
    Structural Steels
    Call
  • H.J.Swann Build Contractors Ltd Logo

    H.J.Swann Build Contractors Ltd

    9.59

    (26 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Project Management
    Partition Walls
    Core Drilling
    Call
  • YCL Construction Ltd

    9.35

    (30 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Equestrian Stable
    Cladding
    Call
  • Peak Projects East Midlands Ltd Logo

    Peak Projects East Midlands Ltd

    9.78

    (112 reviews)

    Operates in Castle Donington

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Garden Studios
    Partition Walls
    Call

Conversion and extension builders in Castle Donington

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

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 Castle Donington

Our checked tradespeople in Castle Donington 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 Castle Donington

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 Castle Donington: 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 Castle Donington

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

Find the right extension or conversion specialist in Castle Donington

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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