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Extension Builders in Market Harborough (36)

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  • Sampla Construction Ltd Logo

    Sampla Construction Ltd

    9.96

    (50 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Basement / Cellar Conversions
    Project Management
    Call
  • Fernie Building Services Logo

    Fernie Building Services

    9.82

    (26 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Partition Walls
    Period Property Restoration
    Call
  • Prozllomi Logo

    Prozllomi

    9.33

    (4 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Agricultural Building
    Sustainable Construction
    Call
  • Adva Property Development Ltd Logo

    Adva Property Development Ltd

    10.00

    (24 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Garden Studios
    Project Management
    Call
  • JV Homes Construction Limited

    9.88

    (69 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Repair and Listed Building Specialist
    Property Maintenance / Repair
    New Builds
    Call
  • General Overhaul Group Ltd.

    10.00

    (58 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Period Property Restoration
    Partition Walls
    Suspended Ceilings
    Call
  • VAI INTERIORS LTD Logo

    VAI INTERIORS LTD

    9.90

    (10 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Fire and Flood Renovation
    Foundations
    Partition Walls
    Call
  • MMAX8-ONESTONEWALL LTD Logo

    MMAX8-ONESTONEWALL LTD

    9.79

    (33 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Demolition
    Foundations
    Call
  • B2bsalesUK TA Thalim construction Logo

    B2bsalesUK TA Thalim construction

    9.08

    (26 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Property Maintenance / Repair
    Fire and Flood Renovation
    Call
  • DSD Construction Logo

    DSD Construction

    10.00

    (37 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Loft Conversions
    Garage Conversions
    Call
  • Jevgenijs Lapins Logo

    Jevgenijs Lapins

    9.35

    (19 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    Suspended Ceilings
    General Building
    Call
  • Vedpro Construction Ltd Logo

    Vedpro Construction Ltd

    9.93

    (30 reviews)

    Operates in Market Harborough

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Agricultural Building
    Partition Walls
    Call

Conversion and extension builders in Market Harborough

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

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 Market Harborough

Our checked tradespeople in Market Harborough 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 Market Harborough

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 Market Harborough: 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 Market Harborough

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

Find the right extension or conversion specialist in Market Harborough

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


Looking for more tradespeople in Market Harborough?

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