Find

Extensions / Conversions in East Grinstead (117)

Search results

Describe your job

Give us the details of your job and we'll send it to specialist trades for you

Priced services

Get your job done faster by booking it in

  • More priced services coming soon

  • Tyler's Workshop Ltd Logo

    Tyler's Workshop Ltd

    9.94

    (264 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Partition Walls
    Cladding
    Suspended Ceilings
    Call
  • SM GB CONTRACTORS LTD Logo

    SM GB CONTRACTORS LTD

    (11 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Garden Studios
    Loft Conversions
    Call
  • Kastrati Building Maintenance Logo

    Kastrati Building Maintenance

    9.87

    (37 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Garden Studios
    Refurbishments
    Call
  • MS Property Services Logo

    MS Property Services

    9.81

    (304 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Insurance Claim Specialist
    Basement / Cellar Conversions
    Call
  • Anant Design And Build Limited Logo

    Anant Design And Build Limited

    10.00

    (12 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Loft Conversions
    Basement / Cellar Conversions
    Refurbishments
    Call
  • IVM Homes Logo

    IVM Homes

    10.00

    (3 reviews)

    Operates in East Grinstead

    Suggested Services
    Home extensoins & maintenance
    £15,000 / job
    Call
  • Aspen Row Ltd Logo

    Aspen Row Ltd

    9.80

    (74 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Equestrian Stable
    Steel Fabrication
    New Builds
    Call
  • TW Build Logo

    TW Build

    9.95

    (51 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Garage Conversions
    Suspended Ceilings
    Car Ports
    Call
  • S D Construction Logo

    S D Construction

    9.97

    (570 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Demolition
    Brick / Concrete Structural Repairs
    Garden Studios
    Call
  • Teasdale Construction Ltd Logo

    Teasdale Construction Ltd

    10.00

    (8 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Foundations
    New Builds
    Refurbishments
    Call
  • RGC Construction Service Ltd Logo

    RGC Construction Service Ltd

    9.78

    (13 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Refurbishments
    Garage Conversions
    Call
  • London Construction Partnership Logo

    London Construction Partnership

    9.87

    (12 reviews)

    Operates in East Grinstead

    Services & skills
    Builder
    Extensions / Conversions
    Garden Studios
    Brick / Concrete Structural Repairs
    General Building
    Call

Conversion and extension builders in East Grinstead

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

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 East Grinstead

Our checked tradespeople in East Grinstead 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 East Grinstead

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

Extensions:

[pricing[1].East Grinstead.[House Extension Building].[averagePriceFormatted]] on average, with prices typically starting at [pricing[1].East Grinstead.[House Extension Building].[lowPriceFormatted]] up to [pricing[1].East Grinstead.[House Extension Building].[highPriceFormatted]].

Loft conversions:

[pricing[2].East Grinstead.[Loft Conversion Building].[averagePriceFormatted]] on average, with prices typically starting at [pricing[2].East Grinstead.[Loft Conversion Building].[lowPriceFormatted]] up to [pricing[2].East Grinstead.[Loft Conversion Building].[highPriceFormatted]].

Garage conversions:

[pricing[3].East Grinstead.[Garage Conversions Building].[averagePriceFormatted]] on average, with prices typically starting at [pricing[3].East Grinstead.[Garage Conversions Building].[lowPriceFormatted]] up to [pricing[3].East Grinstead.[Garage Conversions Building].[highPriceFormatted]].

Conservatory roof conversions:

[pricing[4].East Grinstead.[Conservatory Roof Conversions].[averagePriceFormatted]] on average, with prices typically starting at [pricing[4].East Grinstead.[Conservatory Roof Conversions].[lowPriceFormatted]] up to [pricing[4].East Grinstead.[Conservatory Roof Conversions].[highPriceFormatted]].

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 East Grinstead: 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 East Grinstead

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

Find the right extension or conversion specialist in East Grinstead

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 East Grinstead?

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