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Basement / Cellar Conversions in Thorne (10)

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  • G P Property Development Ltd Logo

    G P Property Development Ltd

    10.00

    (367 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    General Building
    Refurbishments
    Loft Conversions
    Call
  • Domestic Demolition Works Logo

    Domestic Demolition Works

    10.00

    (2 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Garage Conversions
    Demolition
    Concrete Garages
    Call
  • R&M PLASTERING N BUILDING Logo

    R&M PLASTERING N BUILDING

    10.00

    (1 review)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Emergency Builder Service
    Refurbishments
    Agricultural Building
    Call
  • Marwa.d Ltd Logo

    Marwa.d Ltd

    (33 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Brick / Concrete Structural Repairs
    New Builds
    Loft Conversions
    Call
  • Darren Hall Builder Logo

    Darren Hall Builder

    9.81

    (71 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Suspended Ceilings
    Foundations
    Heritage Property Specialist
    Call
  • CDG Builders Logo

    CDG Builders

    9.81

    (48 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Building Merchants
    Stretched Ceilings
    Foundations
    Call
  • LHL Building Logo

    LHL Building

    10.00

    (9 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Warehouse Racking
    Mastic Sealant
    Sustainable Construction
    Call
  • Sitwell Refurbishment & Construction Logo

    Sitwell Refurbishment & Construction

    10.00

    (6 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Car Ports
    Loft Conversions
    Mastic Sealant
    Call
  • NorthSouth Joinery & Building Logo

    NorthSouth Joinery & Building

    9.82

    (34 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Partition Walls
    Emergency Builder Service
    Foundations
    Call
  • M Savage Building & Joinery Ltd Logo

    M Savage Building & Joinery Ltd

    (20 reviews)

    Operates in Thorne

    Services & skills
    Builder
    Basement / Cellar Conversions
    Partition Walls
    Cladding
    Concreting
    Call

Find Companies for Basement and Cellar Conversions in Thorne

Dreaming of converting your cellar or basement into a home office, cinema room, or guest bedroom, but unsure about who to hire and how much it will cost?

Checkatrade can help.

Keep reading for everything you need to know about basement and cellar conversions in Thorne and how to hire a checked and reviewed tradesperson for the job.

Want to jump straight into it? Try our quick request a quote feature and we’ll put you in touch with experienced basement conversion companies covering your local area.

Average cellar conversion costs in Thorne

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Looking for basement excavation prices? Our cost guide to building a basement has all the details.

Top tip: You can also try out our job estimate calculator to get a steer idea on costs for your project.

Do I need planning permission to convert a cellar?

Most cellar conversions don’t need planning permission if you’re converting an existing space.

However, if you’re excavating deeper, changing the external appearance, or creating a new entrance, you’ll likely need permission and Building Regulations approval.

Contact your local authorities as a first port of call.

Is a cellar conversion worth it?

Yes – converting a cellar can add valuable living space and increase the property value. It’s also a great option for homeowners in areas where extending upward or outward isn’t possible.

Basements and cellars are legal in the UK, but the work must comply with UK Building Regulations.

This ensures the conversion meets industry-standard requirements for damp proofing, ventilation, fire safety, and structural safety.

Can you convert a cellar into a bedroom?

Yes - with the right planning and building work, you can convert a cellar into a bedroom, guest suite, or even a self-contained studio.

To meet building regulations, your cellar bedroom will need:

  • Proper ventilation and insulation
  • A safe fire escape route
  • Adequate ceiling height and natural light
  • In some cases, planning permission

These checks aren’t just for comfort - they’re essential if you ever decide to sell your home. A compliant conversion can add value and avoid issues during surveys or legal checks.

Why use Checkatrade?

  • Fully checked contractors covering your local area
  • Insurance always listed
  • Easy to compare multiple profiles
  • Handy reviews from local customers
  • Covered by the Checkatrade Guarantee (T&Cs apply)

Looking for more tradespeople in Thorne?

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