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Basement / Cellar Conversions in Sidmouth (10)

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  • Gould Real Estate Limited Logo

    Gould Real Estate Limited

    9.00

    (18 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Sustainable Construction
    Brick / Concrete Structural Repairs
    Garden Studios
    Call
  • BB Traditional Builders LTD Logo

    BB Traditional Builders LTD

    (0 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Agricultural Building
    General Building
    Loft Conversions
    Call
  • Takle Building Limited Logo

    Takle Building Limited

    10.00

    (8 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Structural Steels
    Core Drilling
    Warehouse Racking
    Call
  • SUMMIT & SHORE BUILDERS Logo

    SUMMIT & SHORE BUILDERS

    (0 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Period Property Restoration
    Property Maintenance / Repair
    Agricultural Building
    Call
  • Kmhconstruction Logo

    Kmhconstruction

    9.56

    (18 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Car Ports
    Workshop Design / Construction
    New Builds
    Call
  • Top 2 Bottom Maintenance & Construction Ltd Logo

    Top 2 Bottom Maintenance & Construction Ltd

    10.00

    (2 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Concrete Garages
    Structural Steels
    Tree Houses
    Call
  • Better Build Ltd Logo

    Better Build Ltd

    10.00

    (10 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    New Builds
    Loft Conversions
    Structural Design
    Call
  • AC PROPERTY MAINTENANCE (SOUTH WEST) LTD Logo

    AC PROPERTY MAINTENANCE (SOUTH WEST) LTD

    10.00

    (9 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Suspended Ceilings
    Extensions / Conversions
    Structural Steels
    Call
  • N.B. Construction Logo

    N.B. Construction

    10.00

    (41 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    Demolition
    Cladding
    Call
  • M W Down Builders Logo

    M W Down Builders

    9.50

    (11 reviews)

    Operates in Sidmouth

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    Brick / Concrete Structural Repairs
    General Building
    Call

Find Companies for Basement and Cellar Conversions in Sidmouth

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 Sidmouth 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 Sidmouth

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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 Sidmouth?

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