Extensions / Conversions in Walberton (80)

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  • Ted Construction & Developments Limited Logo

    Ted Construction & Developments Limited

    9.95

    (210 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Fire and Flood Renovation
    New Builds
    Workshop Design / Construction
    Call
  • Onebuild Sussex limited Logo

    Onebuild Sussex limited

    9.83

    (2 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    New Builds
    Loft Conversions
    Call
  • Boss Building & Carpentry Limited Logo

    Boss Building & Carpentry Limited

    9.92

    (45 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Loft Conversions
    Refurbishments
    Call
  • Sponsored
    Next Level Construction Sussex Ltd Logo

    Next Level Construction Sussex Ltd

    9.52

    (43 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Foundations
    Structural Design
    Garage Conversions

    Latest verified customer review

    10.0

    We chose Next Level on a personal family recommendation and we’re not disappointed. All the Next Level personnel were cheerful, pleasant, superb at carrying out excellent work and hardworking. Although they were fitting our own design they were willing to offer changes for our consideration- all of which were of benefit to us. Overall very pleased with the outcome and would recommend this company.

    Call
  • H & C Construction Sussex Ltd Logo

    H & C Construction Sussex Ltd

    10.00

    (76 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Insurance Claim Specialist
    Garage Conversions
    Structural Steels
    Call
  • Allbright Limited Logo

    Allbright Limited

    10.00

    (103 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Mastic Sealant
    Steel Fabrication
    Call
  • Croft Builders Ltd Logo

    Croft Builders Ltd

    9.94

    (164 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Concreting
    General Building
    Call
  • Build Sussex Ltd Logo

    Build Sussex Ltd

    10.00

    (6 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Foundations
    Refurbishments
    Call
  • Stillwell Building Ltd Logo

    Stillwell Building Ltd

    9.86

    (197 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Brick / Concrete Structural Repairs
    Concreting
    Garden Studios
    Call
  • Wallis Short And Son Logo

    Wallis Short And Son

    10.00

    (62 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Structural Steels
    Demolition
    Call
  • Pearl Building Ltd Logo

    Pearl Building Ltd

    9.92

    (243 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    General Building
    Cladding
    Call
  • Arundels Construction Logo

    Arundels Construction

    9.89

    (50 reviews)

    Operates in Walberton

    Services & skills
    Builder
    Extensions / Conversions
    Equestrian Stable
    New Builds
    Fire and Flood Renovation
    Call

Top rated Extensions / Conversions in Walberton

10

/10

95 ratings

Our Extensions / Conversions in Walberton are rated an average of 10 out of 10 based on a sample of 95 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 Walberton

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

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 Walberton

Our checked tradespeople in Walberton 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 Walberton

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

Extensions:

£36363 on average, with prices typically starting at £21034 up to £60872.

Loft conversions:

£37346 on average, with prices typically starting at £23540 up to £58094.

Garage conversions:

£11075 on average, with prices typically starting at £7322 up to £16880.

Conservatory roof conversions:

£7981 on average, with prices typically starting at £5308 up to £11927.

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 Walberton: 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 Walberton

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

Find the right extension or conversion specialist in Walberton

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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