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Extensions / Conversions in OX28 (36)

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  • Interior To Exterior Property Renovations Limited Logo

    Interior To Exterior Property Renovations Limited

    10.00

    (49 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Foundations
    Loft Conversions
    Call
  • LYNCH BROTHER HOMES LIMITED Logo

    LYNCH BROTHER HOMES LIMITED

    10.00

    (23 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Mastic Sealant
    Foundations
    Sustainable Construction
    Call
  • Cotswold Building & Landscaping Works Logo

    Cotswold Building & Landscaping Works

    9.74

    (80 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Concreting
    New Builds
    Call
  • Absolute Carpentry & Kitchens Logo

    Absolute Carpentry & Kitchens

    10.00

    (71 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Steel Fabrication
    Fire and Flood Renovation
    Partition Walls
    Call
  • Sterling Renovations Ltd Logo

    Sterling Renovations Ltd

    10.00

    (13 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Refurbishments
    Structural Steels
    Call
  • Bespoke Builders Oxford Ltd Logo

    Bespoke Builders Oxford Ltd

    (1 review)

    Operates in OX28

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

    AQSON Construction Ltd

    9.70

    (11 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Fire and Flood Renovation
    Structural Design
    Call
  • Simpson Decorating Logo

    Simpson Decorating

    9.88

    (133 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Workshop Design / Construction
    Concrete Garages
    Call
  • Platinum Build Ltd Logo

    Platinum Build Ltd

    10.00

    (23 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    General Building
    Car Ports
    Call
  • Aston Clinton Cosy Conversions LTD Logo

    Aston Clinton Cosy Conversions LTD

    10.00

    (5 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Period Property Restoration
    Basement / Cellar Conversions
    Brick / Concrete Structural Repairs
    Call
  • Hartnett Carpentry and Joinery LTD Logo

    Hartnett Carpentry and Joinery LTD

    9.22

    (12 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Concrete Garages
    Structural Design
    Call
  • D Dunn Ground Works Logo

    D Dunn Ground Works

    9.92

    (111 reviews)

    Operates in OX28

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Equestrian Stable
    Concreting
    Call

Conversion and extension builders in OX28

Planning a loft conversion, garage makeover or full house extension in OX28? 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 OX28

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 OX28

Our checked tradespeople in OX28 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 OX28

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 OX28: 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 OX28

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 OX28? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in OX28

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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