Basement / Cellar Conversions in KT14 (96)

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  • Assist Facilities Management Logo

    Assist Facilities Management

    Be the first to review

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    Agricultural Building
    Concreting
    Call
  • Concept Logo

    Concept

    9.88

    (131 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Emergency Builder Service
    Wall Tie Replacements
    Fire and Flood Renovation
    Call
  • CRAIG BUILDING REFURBISHMENTS LTD T/A CBR Logo

    CRAIG BUILDING REFURBISHMENTS LTD T/A CBR

    10.00

    (25 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Refurbishments
    Partition Walls
    Garden Studios
    Call
  • Azone Construction Ltd Logo

    Azone Construction Ltd

    10.00

    (23 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Loft Conversions
    Foundations
    Car Ports
    Call
  • Tolworth Construction Surrey ltd Logo

    Tolworth Construction Surrey ltd

    9.95

    (7 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Fire and Flood Renovation
    Warehouse Racking
    Agricultural Building
    Call
  • M D Property Maintenance Ltd Logo

    M D Property Maintenance Ltd

    9.33

    (364 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Workshop Design / Construction
    Cladding
    Concreting
    Call
  • Weybridge Construction Logo

    Weybridge Construction

    (45 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Sustainable Construction
    Loft Conversions
    Emergency Builder Service
    Call
  • Adoace Limited

    (3 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Stretched Ceilings
    Partition Walls
    Garden Studios
    Call
  • LM Refurb & Services Logo

    LM Refurb & Services

    9.89

    (24 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Brick / Concrete Structural Repairs
    Foundations
    Cladding
    Call
  • B&C Construction ltd Logo

    B&C Construction ltd

    9.86

    (7 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Foundations
    Demolition
    Refurbishments
    Call
  • S & I Builders Ltd Logo

    S & I Builders Ltd

    9.81

    (151 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Garage Conversions
    Car Ports
    Stretched Ceilings
    Call
  • Cheam Building Services LTD Logo

    Cheam Building Services LTD

    10.00

    (132 reviews)

    Operates in KT14

    Services & skills
    Builder
    Basement / Cellar Conversions
    Garden Studios
    Concreting
    Loft Conversions
    Call

Find Companies for Basement and Cellar Conversions in KT14

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 KT14 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 KT14

Expect to pay between £6690 and £24932 , with an average cost of £13309.

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 KT14?

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