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Double Glazing Installation in KT20 (49)

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  • UNIQUE GLAZING INSTALLATIONS LONDON LTD Logo

    UNIQUE GLAZING INSTALLATIONS LONDON LTD

    9.48

    (101 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Composite Front Doors Installation
    Bifold Doors Installation
    Wooden Sash Windows Installation
    Call
  • Greenhayes Windows Ltd Logo

    Greenhayes Windows Ltd

    9.93

    (298 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Porch Installation
    Bifold Doors Installation
    Aluminium Doors Installation
    Call
  • CLW Glazing & Repairs Logo

    CLW Glazing & Repairs

    10.00

    (261 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Triple Glazing Repair
    Bifold Doors Installation
    Frosted Windows
    Call
  • Dennington Glass & Glazing Logo

    Dennington Glass & Glazing

    9.92

    (114 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Conservatory Installation
    Frosted Windows
    Timber / Wooden Windows Installation
    Call
  • The Door & Window Shop Ltd Logo

    The Door & Window Shop Ltd

    9.79

    (404 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Wooden Sash Windows Installation
    Door Canopies
    Aluminium Windows Installation
    Call

  • Horley Glass Ltd

    9.99

    (203 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Doors Installation
    Porch Installation
    Aluminium Windows Installation
    Call
  • Dorking Window Company Logo

    Dorking Window Company

    9.86

    (767 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Window Fitters
    Exterior Doors Installation
    Patio Doors Installation
    Call
  • RSB Windows Logo

    RSB Windows

    9.92

    (35 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Bifold Doors Installation
    Misted Double Glazing
    Aluminium Doors Installation
    Call
  • Glitz Windows And Conservatories Ltd Logo

    Glitz Windows And Conservatories Ltd

    10.00

    (9 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Glass Replacement
    UPVC Windows Installation
    Misted Double Glazing
    Call
  • Instant Windows and Doors Limited Logo

    Instant Windows and Doors Limited

    9.88

    (75 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Windows Installation
    Aluminium Doors Installation
    Aluminium Windows Installation
    Call
  • Select Window Systems Logo

    Select Window Systems

    10.00

    (218 reviews)

    Operates in KT20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Roof Windows Installation
    Exterior Doors Installation
    Door Canopies
    Call
  • Abbey Repairs (Double Glazing Repairs and Conservatory Repairs) Logo
    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Stained Glass
    Window Fitters
    Porch Installation
    Call

Find double glazing installers in KT20

Looking to cut energy bills, reduce outside noise, and improve your home’s comfort?

Double glazing installation offers a durable and energy-efficient solution.

At Checkatrade, you can connect with checked double glazing installers near you, each reviewed by real customers, so you can hire with confidence.

How much does double glazing cost in the UK?

There are several factors that affect the cost of double glazing, including the size and type of windows you choose, the frame material, and installation complexity.

On average, expect to pay around:

  • £500–£1,250 per uPVC casement window
  • £700–£1,500 per sash window
  • £600 - £1,400 per sliding window
  • £600 - £1,400 per tilt and turn window
  • £1,100 - £4,000 per bay window
  • £1,500 - £5,000+ per bow window

The average cost of adding double glazing to a three-bedroom house, based on roughly 8-12 windows, is around £8,000–£15,000.

Our double-glazing cost guide has more detailed information.

What are the benefits of double glazing?

Installing double glazing comes with a range of advantages:

  • Energy efficiency: reduces heat loss and lowers energy bills
  • Noise reduction: keeps outside noise to a minimum
  • Security: modern glazing includes toughened glass and multi-point locks
  • Increased property value: an attractive selling point for buyers
  • Low maintenance: especially with uPVC frames

How long does double glazing installation take?

The installation process depends on the number of windows:

  • For straightforward fittings, 1–2 hours per window
  • For an entire house, 1–3 days

Installers will remove the old units, prepare the frames, and fit the new double-glazed windows, ensuring minimal disruption to your home.

Do I need planning permission for double glazing?

In most cases, you won’t need planning permission for double glazing, especially for like-for-like replacements.

Permission may be required if:

  • Your property is in a listed building or conservation area
  • You are significantly altering the external appearance

A checked installer in KT20 can let you know if additional approval is needed.

Tips for hiring double-glazing installers in your area

Before booking double glazing installation near you, follow these steps to help ensure the right choice of hire:

  • Read customer reviews on Checkatrade
  • Check to ensure they offer the services you need — for example, replacing misted units or full-house installations
  • Ask for a detailed quote that includes materials, labour, VAT, and disposal of old windows
  • Confirm if they provide guarantees on both the glass units and installation work
  • Compare several quotes to find the right service

For tradespeople committed to quality and a job done right, search for double glazing installers in your area with Checkatrade.

Looking for more tradespeople in KT20?

Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in KT20 and check out our latest home improvement guides.