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Extensions / Conversions in Crews Hill (201)

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  • Sponsored
    Interhome Construction Ltd Logo

    Interhome Construction Ltd

    10.00

    (1 review)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Basement / Cellar Conversions
    Foundations
    Call
  • Interhome Construction Ltd Logo

    Interhome Construction Ltd

    10.00

    (1 review)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Basement / Cellar Conversions
    Demolition
    Call
  • Comfort Plus Refurbishments Ltd Logo

    Comfort Plus Refurbishments Ltd

    9.76

    (14 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Refurbishments
    Loft Conversions
    Call
  • 4&J Construction Ltd Logo

    4&J Construction Ltd

    9.43

    (8 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    General Building
    Concrete Garages
    Call
  • PrimeBuilders Ltd Logo

    PrimeBuilders Ltd

    9.65

    (61 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Loft Conversions
    Garage Conversions
    Call
  • Flamur Hoxha Building & Refurbs Logo

    Flamur Hoxha Building & Refurbs

    9.85

    (52 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Basement / Cellar Conversions
    Car Ports
    Call
  • Gosai Construction Limited Logo

    Gosai Construction Limited

    9.77

    (92 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    General Building
    Repair and Listed Building Specialist
    Call
  • Reform Build Constructions Ltd Logo

    Reform Build Constructions Ltd

    10.00

    (3 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Garage Conversions
    New Builds
    Call
  • Fabiol Builders Logo

    Fabiol Builders

    10.00

    (88 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Steel Fabrication
    Suspended Ceilings
    Call
  • REDROSE CONSTRUCTION (HERTS) LTD Logo

    REDROSE CONSTRUCTION (HERTS) LTD

    9.93

    (10 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Garden Studios
    Structural Steels
    Call
  • T & L L Construction Limited Logo

    T & L L Construction Limited

    10.00

    (24 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Refurbishments
    Garage Conversions
    Call
  • ALL2CONSTRUCT LTD Logo

    ALL2CONSTRUCT LTD

    10.00

    (4 reviews)

    Operates in Crews Hill

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Mastic Sealant
    Emergency Builder Service
    Call

Conversion and extension builders in Crews Hill

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

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 Crews Hill

Our checked tradespeople in Crews Hill 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 Crews Hill

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 Crews Hill: 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 Crews Hill

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

Find the right extension or conversion specialist in Crews Hill

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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