Extensions / Conversions in BH6 (78)

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  • Sponsored
    DB Huntley Builders Logo

    DB Huntley Builders

    9.94

    (14 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    Brick / Concrete Structural Repairs
    Project Management
    Call
  • AMC Developments Limited Logo

    AMC Developments Limited

    10.00

    (63 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Partition Walls
    Steel Work Design
    Call
  • Insideout Building Logo

    Insideout Building

    9.95

    (52 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Partition Walls
    Brick / Concrete Structural Repairs
    Call
  • Caspian Homey Logo

    Caspian Homey

    9.83

    (32 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Concrete Garages
    General Building
    Cladding
    Call
  • Pipe Dreams Services Ltd Logo

    Pipe Dreams Services Ltd

    9.94

    (421 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Basement / Cellar Conversions
    Suspended Ceilings
    Call
  • Parkway Developments Dorset Ltd Logo

    Parkway Developments Dorset Ltd

    10.00

    (13 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    General Building
    Workshop Design / Construction
    Call
  • SW PROPERTY CARE LTD Logo

    SW PROPERTY CARE LTD

    9.94

    (132 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Refurbishments
    Fire and Flood Renovation
    Call
  • Westpark Carpentry & Building Services Logo

    Westpark Carpentry & Building Services

    9.92

    (52 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Wall Tie Replacements
    Tree Houses
    Call
  • Revo Construction Logo

    Revo Construction

    9.78

    (85 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Structural Design
    Garage Conversions
    Demolition
    Call
  • KJ Kilford Carpentry Contractors Limited

    9.81

    (166 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Loft Conversions
    Equestrian Stable
    Call
  • Dorset Building & Landscaping Ltd Logo

    Dorset Building & Landscaping Ltd

    10.00

    (67 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    New Builds
    Period Property Restoration
    Call
  • Unique Construction Logo

    Unique Construction

    9.97

    (398 reviews)

    Operates in BH6

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Loft Conversions
    Refurbishments
    Call

Conversion and extension builders in BH6

Planning a loft conversion, garage makeover or full house extension in BH6? 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 BH6

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 BH6

Our checked tradespeople in BH6 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 BH6

Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:

Extensions:

£36882 on average, with prices typically starting at £23612 up to £57427.

Loft conversions:

£40094 on average, with prices typically starting at £27331 up to £57937.

Garage conversions:

£11815 on average, with prices typically starting at £8366 up to £16687.

Conservatory roof conversions:

£8560 on average, with prices typically starting at £6006 up to £12273.

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 BH6: 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 BH6

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 BH6? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in BH6

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 BH6?

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