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Basement / Cellar Conversions in Gainsborough (10)

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  • All In Construction Ltd Logo

    All In Construction Ltd

    7.88

    (21 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Wall Tie Replacements
    Concrete Garages
    Car Ports
    Call
  • JC construction Logo

    JC construction

    9.90

    (7 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    New Builds
    Refurbishments
    Call
  • G P Property Development Ltd Logo

    G P Property Development Ltd

    10.00

    (367 reviews)

    Operates in Gainsborough

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

    Domestic Demolition Works

    10.00

    (2 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Refurbishments
    Property Maintenance / Repair
    Demolition
    Call
  • Mk & Sons Homes Ltd Logo

    Mk & Sons Homes Ltd

    10.00

    (18 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Refurbishments
    Suspended Ceilings
    Loft Conversions
    Call
  • Tudor building & roofing services Ltd Logo

    Tudor building & roofing services Ltd

    9.71

    (4 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Agricultural Building
    Garden Studios
    Cladding
    Call
  • Drury Building Services Limited

    10.00

    (1 review)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Equestrian Stable
    Garage Conversions
    Fire and Flood Renovation
    Call
  • CDG Builders Logo

    CDG Builders

    9.81

    (48 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Concreting
    Foundations
    Brick / Concrete Structural Repairs
    Call
  • Sitwell Refurbishment & Construction Logo

    Sitwell Refurbishment & Construction

    10.00

    (6 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Agricultural Building
    Garden Studios
    Wall Tie Replacements
    Call
  • Thornton & Lilley LTD Logo

    Thornton & Lilley LTD

    9.50

    (42 reviews)

    Operates in Gainsborough

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    Loft Conversions
    General Building
    Call

Find Companies for Basement and Cellar Conversions in Gainsborough

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 Gainsborough 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 Gainsborough

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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 Gainsborough?

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