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Extensions / Conversions in Worcestershire (17)

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  • AK @ Construction & Maintenance Ltd Logo

    AK @ Construction & Maintenance Ltd

    10.00

    (147 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    New Builds
    Project Management
    Call
  • D G Jones Building Service

    9.60

    (79 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    General Building
    Garage Conversions
    Call
  • Saville Construction (Worcs.) Limited Logo

    Saville Construction (Worcs.) Limited

    (0 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Concreting
    Basement / Cellar Conversions
    Call
  • Smart Roofing and Construction Ltd

    (0 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Suspended Ceilings
    Mastic Sealant
    Garage Conversions
    Call
  • Alpha Bricklaying & Construction Ltd Logo

    Alpha Bricklaying & Construction Ltd

    8.65

    (37 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Structural Steels
    Call
  • Ricky The Bricky Logo

    Ricky The Bricky

    9.96

    (30 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Demolition
    Repair and Listed Building Specialist
    Call
  • GSPR Developments Ltd Logo

    GSPR Developments Ltd

    (101 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Loft Conversions
    Call
  • RPM Building Services Limited Logo

    RPM Building Services Limited

    9.33

    (19 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Repair and Listed Building Specialist
    Demolition
    Call
  • Superior Building Development Services Logo

    Superior Building Development Services

    10.00

    (89 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Partition Walls
    Mastic Sealant
    Call
  • J Field Construction Logo

    J Field Construction

    9.95

    (33 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Project Management
    Structural Design
    Foundations
    Call
  • HARFORD CONSTRUCTION Logo

    HARFORD CONSTRUCTION

    9.44

    (6 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Workshop Design / Construction
    Concreting
    Cladding
    Call
  • Mtp Contracts Limited Logo

    Mtp Contracts Limited

    10.00

    (100 reviews)

    Operates in Worcestershire

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    General Building
    Emergency Builder Service
    Call

Conversion and extension builders in Worcestershire

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

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 Worcestershire

Our checked tradespeople in Worcestershire 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

Costs to expect

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

Single - storey extensions: £21,000 - £65,000

Double - storey extensions: £55,000 - £95,000

Loft conversions: £35,000 - £65,000

Garage conversions: £8,000 - £20,000

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 Worcestershire: 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 Worcestershire

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

Find the right extension or conversion specialist in Worcestershire

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

Looking for more tradespeople in Worcestershire?

Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in Worcestershire and check out our latest home improvement guides.