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Basement / Cellar Conversions in Cowes (30)

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  • Allen & Shaw

    10.00

    (47 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Equestrian Stable
    Loft Conversions
    Agricultural Building
    Call
  • Services & skills
    Builder
    Basement / Cellar Conversions
    Demolition
    Garden Studios
    Project Management
    Call
  • Gibbons & Winzar Developments Ltd Logo

    Gibbons & Winzar Developments Ltd

    9.93

    (73 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Wall Tie Replacements
    Warehouse Racking
    Insurance Claim Specialist
    Call
  • Property Care and Improvements Logo

    Property Care and Improvements

    9.75

    (118 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Steel Fabrication
    Wall Tie Replacements
    Property Maintenance / Repair
    Call
  • Shoreline Contractors Logo

    Shoreline Contractors

    (15 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Partition Walls
    New Builds
    Period Property Restoration
    Call
  • Atkins & Winkles Construction Ltd Logo

    Atkins & Winkles Construction Ltd

    10.00

    (109 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Wall Tie Replacements
    Brick / Concrete Structural Repairs
    Period Property Restoration
    Call
  • AOM Building Contractors Ltd Logo

    AOM Building Contractors Ltd

    9.83

    (43 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Period Property Restoration
    Car Ports
    Property Maintenance / Repair
    Call
  • Abbott Building Services Logo

    Abbott Building Services

    9.90

    (58 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    General Building
    Garage Conversions
    Refurbishments
    Call
  • Oakhurst Building Limited Logo

    Oakhurst Building Limited

    9.25

    (75 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Wall Tie Replacements
    Partition Walls
    Agricultural Building
    Call
  • Coastal renovation group Logo

    Coastal renovation group

    9.78

    (12 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Car Ports
    Fire and Flood Renovation
    Demolition
    Call
  • Nolan Build Ltd

    10.00

    (46 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Loft Conversions
    Partition Walls
    Garden Studios
    Call
  • Morris Parker Property Refurbishment Ltd Logo

    Morris Parker Property Refurbishment Ltd

    9.87

    (190 reviews)

    Operates in Cowes

    Services & skills
    Builder
    Basement / Cellar Conversions
    Brick / Concrete Structural Repairs
    Garage Conversions
    Concreting
    Call

Find Companies for Basement and Cellar Conversions in Cowes

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 Cowes 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 Cowes

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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 Cowes?

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