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Extensions / Conversions in Lincolnshire (16)

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  • Sponsored
    JC construction Logo

    JC construction

    9.81

    (9 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Agricultural Building
    Structural Steels
    Call
  • JC construction Logo

    JC construction

    9.81

    (9 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Foundations
    Refurbishments
    Call
  • TEF Construction Ltd Logo

    TEF Construction Ltd

    9.75

    (31 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    Sustainable Construction
    Wall Tie Replacements
    Call
  • Owen Improvements Logo

    Owen Improvements

    9.67

    (61 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Foundations
    Warehouse Racking
    Sustainable Construction
    Call
  • All In Construction Ltd Logo

    All In Construction Ltd

    7.67

    (23 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Core Drilling
    Warehouse Racking
    Mastic Sealant
    Call
  • P.D.G GROUP LTD Logo

    P.D.G GROUP LTD

    (42 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Foundations
    General Building
    Fire and Flood Renovation
    Call
  • Mk & Sons Homes Ltd Logo

    Mk & Sons Homes Ltd

    10.00

    (20 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Demolition
    Mastic Sealant
    Call
  • Bafti Builders Ltd Logo

    Bafti Builders Ltd

    9.58

    (50 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    Agricultural Building
    Equestrian Stable
    Call
  • Crownmark Construction Logo

    Crownmark Construction

    10.00

    (6 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Car Ports
    Agricultural Building
    Call
  • Chrysalis Arc Projects LTD Logo

    Chrysalis Arc Projects LTD

    9.83

    (2 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Concreting
    Basement / Cellar Conversions
    Call
  • Elite Developments and Homes Ltd Logo

    Elite Developments and Homes Ltd

    9.56

    (40 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Car Ports
    Project Management
    Call
  • Millthorpe Building & Property Services Logo

    Millthorpe Building & Property Services

    10.00

    (40 reviews)

    Operates in Lincolnshire

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Period Property Restoration
    Emergency Builder Service
    Call

Conversion and extension builders in Lincolnshire

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

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 Lincolnshire

Our checked tradespeople in Lincolnshire 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 Lincolnshire

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 Lincolnshire: 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 Lincolnshire

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

Find the right extension or conversion specialist in Lincolnshire

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 Lincolnshire?

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