Extensions / Conversions in Sompting Lancing (91)

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  • Sponsored
    BUILD AND CO GROUP LTD Logo

    BUILD AND CO GROUP LTD

    9.85

    (155 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Project Management
    Garage Conversions
    Concreting
    Call
  • 9 Carpentry Limited Logo

    9 Carpentry Limited

    9.88

    (45 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Basement / Cellar Conversions
    Garage Conversions
    Call
  • TCB Construction

    10.00

    (17 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Workshop Design / Construction
    Core Drilling
    Call
  • JT Builds & Specialised Carpentry Logo

    JT Builds & Specialised Carpentry

    9.92

    (14 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Green Oak Framing
    Garage Conversions
    Refurbishments
    Call
  • Titan Construction Logo

    Titan Construction

    10.00

    (17 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Garage Conversions
    New Builds
    Call
  • Moore Trades Logo

    Moore Trades

    9.89

    (89 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Structural Steels
    Refurbishments
    Call
  • Harveys Logo

    Harveys

    10.00

    (36 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    Loft Conversions
    Brick / Concrete Structural Repairs
    Call
  • K J Mills Home Improvements Logo

    K J Mills Home Improvements

    9.96

    (191 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Concreting
    Cladding
    Call
  • Clarkes of Brighton Logo

    Clarkes of Brighton

    10.00

    (231 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    General Building
    Emergency Builder Service
    Call
  • R2r Construction Ltd Logo

    R2r Construction Ltd

    (21 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Concreting
    Cladding
    Structural Steels
    Call
  • GARTH CONSTRUCTION LTD Logo

    GARTH CONSTRUCTION LTD

    10.00

    (5 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Project Management
    Concrete Garages
    Cladding
    Call
  • Complete Carpentry and Maintenance Ltd Logo

    Complete Carpentry and Maintenance Ltd

    9.50

    (160 reviews)

    Operates in Sompting & North Lancing

    Services & skills
    Builder
    Extensions / Conversions
    Steel Work Design
    Foundations
    General Building
    Call

Top rated Extensions / Conversions in Sompting & North Lancing

10

/10

75 ratings

Our Extensions / Conversions in Sompting & North Lancing are rated an average of 10 out of 10 based on a sample of 75 reviews from customers like you*

*This review aggregate is based on real customer reviews from a randomly selected postcode in this area

Conversion and extension builders in Sompting & North Lancing

Planning a loft conversion, garage makeover or full house extension in Sompting & North Lancing? 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 Sompting & North Lancing

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 Sompting & North Lancing

Our checked tradespeople in Sompting & North Lancing 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 Sompting & North Lancing

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

Extensions:

£32709 on average, with prices typically starting at £20085 up to £52106.

Loft conversions:

£35928 on average, with prices typically starting at £23495 up to £54370.

Garage conversions:

£11307 on average, with prices typically starting at £7931 up to £16168.

Conservatory roof conversions:

£8088 on average, with prices typically starting at £5783 up to £11360.

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 Sompting & North Lancing: 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 Sompting & North Lancing

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 Sompting & North Lancing? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in Sompting & North Lancing

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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