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Basement Conversions in Ferndale (20)

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  • NBG Construction Ltd Logo

    NBG Construction Ltd

    10.00

    (72 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Brick / Concrete Structural Repairs
    Foundations
    Call
  • Keramics Logo

    Keramics

    10.00

    (49 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Concrete Garages
    Project Management
    Call
  • Inavision Construction Logo

    Inavision Construction

    9.87

    (26 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Concreting
    Brick / Concrete Structural Repairs
    Call
  • JN Building Services & Property Development LTD Logo

    JN Building Services & Property Development LTD

    10.00

    (8 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Warehouse Racking
    Demolition
    Call
  • Vale Renovations & Property Maintenance Logo

    Vale Renovations & Property Maintenance

    10.00

    (5 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Period Property Restoration
    Loft Conversions
    Refurbishments
    Call
  • Carpo's Construction Ltd Logo

    Carpo's Construction Ltd

    9.75

    (4 reviews)

    Operates in Ferndale

    Suggested Services
    Extensions / Conversions
    Price on request
    Call
  • Tri Dyn Electrical and Building Services Logo

    Tri Dyn Electrical and Building Services

    9.87

    (16 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Stretched Ceilings
    Mastic Sealant
    Loft Conversions
    Call
  • Bluestone Construction & Landscapes Logo

    Bluestone Construction & Landscapes

    10.00

    (27 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Car Ports
    Equestrian Stable
    Call
  • Services & skills
    Builder
    Extensions / Conversions
    Concreting
    General Building
    Wall Tie Replacements
    Call
  • LMB Construction (SW) Limited Logo

    LMB Construction (SW) Limited

    (12 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Project Management
    Insurance Claim Specialist
    Call
  • LFB Contractors Ltd Logo

    LFB Contractors Ltd

    10.00

    (15 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Garden Studios
    Suspended Ceilings
    Call
  • Cardiff Extensions Ltd Logo

    Cardiff Extensions Ltd

    10.00

    (9 reviews)

    Operates in Ferndale

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Garage Conversions
    Refurbishments
    Call

Conversion and extension builders in Ferndale

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

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 Ferndale

Our checked tradespeople in Ferndale 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 Ferndale

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 Ferndale: 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 Ferndale

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

Find the right extension or conversion specialist in Ferndale

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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