Window Advice Centre
  • Home
  • Our Service
      • Step 1

      • Survey and Advice
      • Step 2

      • Tender Presentation
      • Step 3

      • Ensuring Satisfaction
      • Step 4

      • 10 Year Protection Peace of Mind
  • Double Glazing
      • Is All Double Glazing The Same?
      • Benefits of our Service
      • Thermal Performance
      • Best Double Glazed Windows
      • Double Glazing Quotes
      • Double Glazing Reviews
      • Planning and Building Regulations
      • Sash and Case Windows
      • UPVC Windows
      • Replacement Windows
      • Triple Glazed Windows
      • Secondary Glazing
      • Doors
      • Security
  • FAQs
  • Contact Us
    • News
    • Glasgow
    • Edinburgh
    • Dundee
    • Lanarkshire
    • Stirling
    • Fife
    • Perth
    • Ayrshire
    • Paisley and Renfrewshire
  • How We Save You Money
Select Page
  • Home
  • Our Service
      • Step 1

      • Survey and Advice
      • Step 2

      • Tender Presentation
      • Step 3

      • Ensuring Satisfaction
      • Step 4

      • 10 Year Protection Peace of Mind
  • Double Glazing
      • Is All Double Glazing The Same?
      • Benefits of our Service
      • Thermal Performance
      • Best Double Glazed Windows
      • Double Glazing Quotes
      • Double Glazing Reviews
      • Planning and Building Regulations
      • Sash and Case Windows
      • UPVC Windows
      • Replacement Windows
      • Triple Glazed Windows
      • Secondary Glazing
      • Doors
      • Security
  • FAQs
  • Contact Us
    • News
    • Glasgow
    • Edinburgh
    • Dundee
    • Lanarkshire
    • Stirling
    • Fife
    • Perth
    • Ayrshire
    • Paisley and Renfrewshire
  • How We Save You Money
Glasgow 0141 332 7878
Edinburgh 0131 225 7999
Dundee 01382 200345
Perth 01738 313032

Double Glazing FAQs

Double Glazing FAQs – Frequently Asked Questions

Welcome to our dedicated Double Glazing FAQs page, where you’ll find answers to some of the most common questions about double glazing, including how it works, its benefits, maintenance tips, energy saving features, and more. Whether you’re considering installing double glazing for the first time or looking to upgrade your existing windows, we’re here to provide expert guidance and support every step of the way.

At Window Advice Centre, we understand that choosing the right double glazing for your home can be a significant decision. That’s why we’ve created this comprehensive resource to address all your questions and concerns about double glazing.

What Is Double Glazing?

Double glazing refers to window glazing constructed with two panes of glass held apart by a spacer bar located between the two panes circa 10mm in from the glass edge and then sealed around the perimeter often with a hot butyl sealant to hermetically seal the unit to stop moisture getting into the gap between the panes.

Compared to standard double glazing it is possible to specify thermally enhanced glazing that incorporates leading edge technologies that can reduce the heat loss of standard double glazing by over 70%.

This level of enhanced thermal efficiency significantly reduces heat loss and fuel bills in the cold months allowing comfortable room temperatures throughout the year.

Double glazing can be designed with a wide variety of acoustic glazing permutations able to provide sound insulation that can reduce the perceived noise levels to a small fraction of the noise levels through standard double glazing. This can have a profound level of enhanced tranquil peace and quiet inside the home whilst offering increased security.

Double glazing can be formed with safety glass and high security glazing that can resist multiple axe blows and still remain a solid barrier to forced entry.

Double glazing offers a range of benefits for homeowners, making it a worthwhile upgrade for improved comfort, security, and energy efficiency.

You can learn more by visiting our Is All Double Glazing The Same? web page.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Is Double Glazing Worth It?

Investing in double glazing for your home is worthwhile for several reasons.

The financial savings from improved insulation, reduced energy bills, reduced maintenance costs, and increased property value will outweigh this investment making it a cost justified investment. Double glazing enhances the comfort of your home by maintaining a consistent indoor temperature and reducing external noise, making it a more pleasant living environment.

Double glazing helps reduce energy consumption and lower your carbon footprint, contributing to a more sustainable future.  The numerous benefits of double glazing make it a valuable investment for any homeowner looking to improve their home’s energy efficiency, comfort and value.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

You can learn more on our Replacement Windows web page.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Does Double Glazing Reduce Noise?

Double glazing can be designed to be a very effective barrier to noise.

Standard double glazing reduces the perception of noise levels to circa 40% of the noise at source while acoustic glazing can reduce this to a reduction of 90%.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

You can learn more on our Replacement Windows web page.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Does Double Glazing Stop Condensation?

Double glazing can be specified to include features that can contribute to controlling condensation on windows by improving thermal insulation and maintaining a temperature on the glass surface above the dew point that condensation would occur.

Replacement windows should incorporate ventilation options that allow cost effective secure ventilation strategies to reduce humidity levels to further complement the condensation-reducing benefits of thermally enhanced double glazing.

Investing in the appropriate double glazed windows and implementing proper ventilation practices can eliminate condensation-related problems, ensuring a more comfortable and healthy living space. Contact Window Advice Centre today to learn how double glazing can help address condensation concerns in your home.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Does Double Glazing Keep Heat Out?

Double glazing can be designed to not only keep expensive heat inside the home but also to keep excessive heat out to allow comfortable living all year round.

The appropriate glass specification not only excels in insulating homes and retaining heat during colder months but can also effectively reduce excessive solar gain that can make living conditions uncomfortable.

This versatility ensures year-round comfort, with double glazing maintaining a balanced indoor temperature regardless of the season.

You can learn more on our Thermal Performance web page.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Does Double Glazing Reduce Heat Loss?

With the appropriate specification double glazing can be highly effective at reducing heat loss from your home. Compared to single glazing, thermally efficient double glazing with the appropriate glass types and construction methods can reduce the rate of heat loss by over 80%.

This is twice as thermally efficient as standard double glazing.

Unfortunately many people buying replacement double glazed windows based upon the lowest cost only get half the thermal efficiency and half the energy costs savings that could have been achieved had they just spent a little extra making their purchase a false economy when you consider all the future savings in heating their home.

It is also the case that some optional additional energy saving features can be incorporated into windows that contribute only minimum added benefit at considerable extra cost. Sometimes the cost of including features that deliver minimal added thermal benefit divided by the annual cost savings that they deliver can give pay back periods to break even far longer than the design life of the new Replacement windows so they never get to pay for themselves.

You can learn more on our Thermal Performance web page. Contact us at Window Advice Centre to learn more about how double glazing can help you reduce heat loss and improve energy efficiency in your home.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Can Double Glazing Shatter for no apparent reason?

All glass whether Single, Double glazed or triple glazed can shatter for no immediately apparent reason.

This can occur due to the expansion and contraction that results with temperature variations that can causes differential forces to be applied to the glass which will mechanically fail if there is a microscopic weakness at the glass edge. Sometimes this can be seen as a crack in the glass that progressively and slowly grows out from the glass edge across the pane while in other circumstances, such as toughened glass, it can be a sudden catastrophic failure accompanied by a loud bang.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you. 

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Is Triple Glazing better than Double Glazing?

Triple glazing is worth considering in some circumstances but due to its extra cost and weight it may not be the best solution in the majority of situations.

Thermally efficient double glazing with the appropriate glass specification can be just as thermally efficient as standard triple glazing.

The transfer of sound across acoustic double glazing is less than the sound transfer through standard triple glazing.

As the appropriate form of acoustic or thermally enhanced double glazing can be installed in standard frames it can be less expensive, more efficient and longer lived than triple glazing.

In some circumstances the use of acoustically enhanced or thermally enhanced triple glazing merits the additional cost and is able to provide exceptional levels of performance.

You can learn more on our Triple Glazed Windows web page. Contact Window Advice Centre for expert guidance on upgrading to triple glazing or other window solutions tailored to your needs.

Without charge or obligation the independent Chartered Architectural Technologists and Replacement Window experts at Window Advice Centre are available to help you.

By contacting Window Advice Centre, you can access impartial expert advice to help you identify the best solution for your specific needs and then be provided with itemised directly comparable costs from a range of approved reliable Replacement Window or Double Glazing companies who have all been subjected to constant appraisal over hundreds of installations over many years.

Contact us today to arrange your free no obligation survey and expert advice from a Window Advice Centre consultant.

Window Advice Centre are here to answer your questions and help you make informed decisions to transform your home with high-quality double glazing solutions.

Explore our Double Glazing FAQs, and discover everything you need to know about double glazing. And if you have any further questions or would like personalized advice, don’t hesitate to reach out to our friendly team by telephone on 0141 332 7878 or arrange a FREE no-obligation Survey of your property by clicking this Book a FREE Survey link or the button below.

Click Here to Book a FREE No-obligation Survey

How Our Process Works

Window Advice Centre consultant discussing double glazing requirements with homeowners during free property survey

Step 1

SURVEY & ADVICE

From an Impartial Double Glazing Expert

Find out more about Step 1: Survey and Advice
Consultant discussing double glazing benefits with consumers during free property survey

Step 2

TENDER PRESENTATION

1 survey – up to 10 double glazing contractors quotes

Find out more about Step 2: Tender Presentation
Thermal image of double glazing installation showing energy efficiency

Step 3

ENSURING SATISFACTION

Detailed Close Inspection Prior to Payment

Find out more about Step 3: Ensuring Satisfaction
10 year insurance backed guarantee for double glazing installation

STEP 4

10 YEAR PROTECTION

10 year insurance backed guarantees

Find out more about Step 4: Ten Year Protection
Glasgow 0141 332 7878
Edinburgh 0131 225 7999
Dundee 01382 200345
Perth 01738 313032
Window Advice Centre impartial advice for quality, economy and peace of mind, established 1981

Our Process

  • Survey and Advice
  • Tender Presentation
  • Ensuring Satisfaction
  • 10 Year Protection Peace of Mind

Company

  • Areas We Cover
  • Blog
  • Contact Us
  • Privacy / Cookies
  • Request Personal Data

Registered Address

Window Advice Centre Limited
160 West George St,
Glasgow
G2 2HG

VAT number: 383 0864 38

Registered as a limited company in Scotland under company number: SC109032.

  • facebook
  • twitter
  • instagram
  • linkedin

Copyright © 2025 Window Advice Centre | Proudly built by Digital NRG and Kayem Computing

How We Save You Money

We save you money by using competitive tendering to identify the least expensive approved contractors itemised costs excluding their normal sales commissions and advertising spend, regularly saving consumers not just hundreds but sometimes thousands of pounds.

Fill in the form below to get your FREE no obligation Survey. One of our local consultants will telephone you to arrange a convenient time to attend to discuss your wishes in detail and to advise you on the most cost effective approach to achieving the outcomes that you want.

    We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services.
    Accept
    Change Settings
    Cookie Box Settings
    Cookie Box Settings

    Privacy settings

    Decide which cookies you want to allow.

    You can change these settings at any time. However, this can result in some functions no longer being available. For information on deleting the cookies, please consult your browser’s help function.

    Learn more about the cookies we use.

    With the slider, you can enable or disable different types of cookies:

    • Block all
    • Essential
    • Functionality
    • Analytics
    • Advertising

    This website will:

    • Essential: Remember your cookie permission setting
    • Essential: Allow session cookies
    • Essential: Gather information you input into a contact forms, newsletter and other forms across all pages
    • Essential: Keep track of what you input in a shopping cart
    • Essential: Authenticate that you are logged into your user account
    • Essential: Remember language version you selected

    This website won't:

    • Remember your login details
    • Functionality: Remember social media settings
    • Functionality: Remember selected region and country
    • Analytics: Keep track of your visited pages and interaction taken
    • Analytics: Keep track about your location and region based on your IP number
    • Analytics: Keep track of the time spent on each page
    • Analytics: Increase the data quality of the statistics functions
    • Advertising: Tailor information and advertising to your interests based on e.g. the content you have visited before. (Currently we do not use targeting or targeting cookies.
    • Advertising: Gather personally identifiable information such as name and location

    This website will:

    • Essential: Remember your cookie permission setting
    • Essential: Allow session cookies
    • Essential: Gather information you input into a contact forms, newsletter and other forms across all pages
    • Essential: Keep track of what you input in a shopping cart
    • Essential: Authenticate that you are logged into your user account
    • Essential: Remember language version you selected
    • Functionality: Remember social media settings
    • Functionality: Remember selected region and country

    This website won't:

    • Remember your login details
    • Analytics: Keep track of your visited pages and interaction taken
    • Analytics: Keep track about your location and region based on your IP number
    • Analytics: Keep track of the time spent on each page
    • Analytics: Increase the data quality of the statistics functions
    • Advertising: Tailor information and advertising to your interests based on e.g. the content you have visited before. (Currently we do not use targeting or targeting cookies.
    • Advertising: Gather personally identifiable information such as name and location

    This website will:

    • Essential: Remember your cookie permission setting
    • Essential: Allow session cookies
    • Essential: Gather information you input into a contact forms, newsletter and other forms across all pages
    • Essential: Keep track of what you input in a shopping cart
    • Essential: Authenticate that you are logged into your user account
    • Essential: Remember language version you selected
    • Functionality: Remember social media settingsl Functionality: Remember selected region and country
    • Analytics: Keep track of your visited pages and interaction taken
    • Analytics: Keep track about your location and region based on your IP number
    • Analytics: Keep track of the time spent on each page
    • Analytics: Increase the data quality of the statistics functions

    This website won't:

    • Remember your login details
    • Advertising: Use information for tailored advertising with third parties
    • Advertising: Allow you to connect to social sites
    • Advertising: Identify device you are using
    • Advertising: Gather personally identifiable information such as name and location

    This website will:

    • Essential: Remember your cookie permission setting
    • Essential: Allow session cookies
    • Essential: Gather information you input into a contact forms, newsletter and other forms across all pages
    • Essential: Keep track of what you input in a shopping cart
    • Essential: Authenticate that you are logged into your user account
    • Essential: Remember language version you selected
    • Functionality: Remember social media settingsl Functionality: Remember selected region and country
    • Analytics: Keep track of your visited pages and interaction taken
    • Analytics: Keep track about your location and region based on your IP number
    • Analytics: Keep track of the time spent on each page
    • Analytics: Increase the data quality of the statistics functions
    • Advertising: Use information for tailored advertising with third parties
    • Advertising: Allow you to connect to social sitesl Advertising: Identify device you are using
    • Advertising: Gather personally identifiable information such as name and location

    This website won't:

    • Remember your login details
    Save & Close