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Double Glazing Installation in GU20 (49)

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    Ideal Window Solutions Limited Logo

    Ideal Window Solutions Limited

    9.97

    (2845 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Windows Installation
    Bifold Doors Installation
    Aluminium Windows Installation
    Call
  • Woking Windows & Doors Logo

    Woking Windows & Doors

    9.99

    (477 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Misted Double Glazing
    Composite Front Doors Installation
    Door Canopies
    Call
  • R & A Windows Logo

    R & A Windows

    (275 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Frosted Windows
    Aluminium Doors Installation
    Patio Doors Installation
    Call
  • Sponsored
    UNIQUE GLAZING INSTALLATIONS LONDON LTD Logo

    UNIQUE GLAZING INSTALLATIONS LONDON LTD

    9.44

    (99 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Composite Front Doors Installation
    Conservatory Roof Insulation
    UPVC Doors Installation
    Call
  • Three Counties Conservatories Windows & Doors Logo

    Three Counties Conservatories Windows & Doors

    9.80

    (1447 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Porch Installation
    Frosted Windows
    Triple Glazing Installation
    Call
  • Alex Dobson Windows & Doors Ltd Logo

    Alex Dobson Windows & Doors Ltd

    10.00

    (361 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Aluminium Doors Installation
    Bay Windows Installation
    UPVC Windows Installation
    Call
  • Berkshire Glazing Ltd Logo

    Berkshire Glazing Ltd

    9.94

    (106 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Bay Windows Installation
    Bifold Doors Installation
    Conservatory Installation
    Call
  • UNIQUE GLAZING INSTALLATIONS LONDON LTD Logo

    UNIQUE GLAZING INSTALLATIONS LONDON LTD

    9.44

    (99 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Doors Installation
    Wooden Sash Windows Installation
    Triple Glazing Installation
    Call
  • Ideal Window Solutions Limited Logo

    Ideal Window Solutions Limited

    9.97

    (2845 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Doors Installation
    Triple Glazing Installation
    Conservatory Installation
    Call
  • Glass At Last Logo

    Glass At Last

    10.00

    (65 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    UPVC Doors Repair
    Triple Glazing Repair
    Conservatory Repairs
    Call
  • Windsor Windows Logo

    Windsor Windows

    9.87

    (494 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Patio Doors Installation
    Exterior Doors Installation
    Orangeries
    Call

  • Bishopsgate Windows and Doors Ltd

    10.00

    (175 reviews)

    Operates in GU20

    Services & skills
    Windows / Doors / Conservatories
    Double Glazing Installation
    Glass Replacement
    Bifold Doors Installation
    Loft Windows Installation
    Call

Find double glazing installers in GU20

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 GU20 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 GU20?

Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in GU20 and check out our latest home improvement guides.