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Extensions / Conversions in Sandown (24)

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  • Abbott Building Services Logo

    Abbott Building Services

    9.91

    (60 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Garden Studios
    Repair and Listed Building Specialist
    Call
  • MCS Renovations Logo

    MCS Renovations

    10.00

    (63 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Foundations
    Loft Conversions
    Call
  • Allen & Shaw

    10.00

    (50 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Workshop Design / Construction
    Insurance Claim Specialist
    Property Maintenance / Repair
    Call
  • Simmonds Services Logo

    Simmonds Services

    10.00

    (50 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    General Building
    Insurance Claim Specialist
    Call
  • CWK Properties Ltd Logo

    CWK Properties Ltd

    9.27

    (170 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Steel Work Design
    Insurance Claim Specialist
    Call
  • D Dunn Ground Works Logo

    D Dunn Ground Works

    9.92

    (111 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Loft Conversions
    Wall Tie Replacements
    Call
  • M&K Carpentry & Building Services

    10.00

    (153 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Wall Tie Replacements
    Demolition
    Call
  • Morris Parker Property Refurbishment Ltd Logo

    Morris Parker Property Refurbishment Ltd

    9.83

    (191 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Loft Conversions
    Suspended Ceilings
    Call
  • W J Building & Decorating Services Logo

    W J Building & Decorating Services

    10.00

    (250 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Mastic Sealant
    Concrete Garages
    Call
  • Pro Build Services Logo

    Pro Build Services

    10.00

    (62 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Fire and Flood Renovation
    Foundations
    Call
  • Rosewood Building Services Logo

    Rosewood Building Services

    9.67

    (36 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Wall Tie Replacements
    Refurbishments
    Steel Work Design
    Call
  • Harris Renovations Logo

    Harris Renovations

    (135 reviews)

    Operates in Sandown

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Fire and Flood Renovation
    Steel Work Design
    Call

Conversion and extension builders in Sandown

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

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 Sandown

Our checked tradespeople in Sandown 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 Sandown

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 Sandown: 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 Sandown

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

Find the right extension or conversion specialist in Sandown

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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