Unit 1, 49 Clifton Road

Aylestone, Leicester LE2 8AA

Mon - Thu: 08:30 - 17:30

Fri: 08:30 - 16:00. Sat & Sun: Closed

0116 456 0242

Book a free home visit!

Expert Double Glazing Advice

What is Double Glazing? How Does it Work?

What is Double Glazing?

Double glazing refers to a window or door system that is made up of two panes of glass with a space in between. This space is often filled with an insulating gas, such as argon, to improve thermal insulation and reduce heat transfer.

Double glazing is commonly used to improve energy efficiency, reduce noise transmission, and enhance security in buildings.

What is double glazing

In this guide, we explore the benefits of double glazing, how it works, and why it’s a great choice for modern properties.

So, let’s jump in.

Benefits of Double Glazing

1. Enhanced Energy Efficiency

One of the most significant advantages of double glazing, also referred to as insulated glazing, is its remarkable energy efficiency. The air or gas trapped between the glass layers acts as an excellent thermal barrier, preventing heat loss during winters and heat gain during summers.

This feature helps maintain a comfortable indoor temperature and reduces the need for excessive heating or cooling, ultimately leading to lower energy bills.

2. Noise Reduction

Double glazing provides an effective solution for reducing external noise infiltration into your home or office. The two layers of glass and the insulating gap create a buffer that dampens sound waves, creating a quieter and more peaceful indoor environment.

Related: How Effective is Double Glazing at Reducing Noise?

3. Improved Security

Double glazed windows offer better security compared to their single-glazed counterparts. The toughened glass and robust frame structure make it significantly harder for intruders to break in, enhancing the safety of your property.

4. Condensation Reduction

Condensation can be a nuisance for many homeowners, leading to issues like mould growth and water damage. Double glazing significantly reduces condensation buildup on windows, maintaining a clearer view and reducing potential damage to window frames and surrounding areas.

Related: How to Fix Blown Double Glazing & Clear Misted Windows

Window with blown window seals and condensation in panes

5. Enhanced Aesthetics

Double glazed windows come in a wide range of designs and styles, allowing you to choose the perfect fit for your property. Whether you prefer traditional or contemporary aesthetics, double glazing can complement any architectural style while adding value to your property.

How Does Double Glazing Work?

Double glazing works by creating an effective thermal barrier between the indoor and outdoor environments. The two layers of glass trap a layer of air or gas, which acts as an insulating medium, preventing the transfer of heat or cold. The trapped air or gas inhibits heat conduction, reducing energy exchange through the window.

Types of Double Glazing

There are various types of double glazing available, each with its unique benefits and features:

1. uPVC Double Glazing

uPVC (unplasticised polyvinyl chloride) double glazing is a popular choice due to its durability, low maintenance requirements, and affordability. uPVC frames are highly energy-efficient, providing excellent thermal performance.

2. Aluminum Double Glazing

Aluminum double glazing is well-known for its sleek and modern appearance. It offers strength and durability, making it an ideal choice for larger windows and sliding doors.

3. Timber Double Glazing

Timber double glazing exudes natural beauty and elegance, enhancing the aesthetics of any property. Timber frames are eco-friendly and offer good insulation properties.

4. Composite Double Glazing

Composite combines the best features of different materials, such as uPVC, timber, and aluminium, to create composite doors with excellent thermal performance and enhanced durability.

Choosing the Right Double Glazing

Selecting the most suitable type of double glazing for your property depends on several factors, including:

1. Budget

Consider your budget and weigh it against the benefits offered by each type of double glazing type. While uPVC is more affordable, timber and aluminium may require a higher initial investment.


2. Aesthetic Preference

Choose a double glazing type that complements the architectural style of your property and aligns with your aesthetic preferences.

3. Energy Efficiency

Check the energy ratings of different double glazing options to ensure you select one that provides optimal thermal performance, thereby reducing energy consumption.

4. Maintenance Requirements

Consider the maintenance needs of each type of double glazing type. uPVC, for instance, requires minimal upkeep compared to timber, which may need periodic treatments.

Double glazing installer fitting a glazed window

Installation Process

The installation of windows and doors should always be carried out by experienced professionals to ensure proper fitting and functionality. The installation process typically involves the following steps:

  • Assessment: A qualified surveyor will visit your property to assess the existing windows and take precise measurements.
  • Quotation: You’ll receive a detailed quotation based on your requirements and preferences.
  • Manufacturing: The double glazing units will be custom-made according to the measurements.
  • Preparation: The existing windows will be removed, and the area will be prepared for the new installation.
  • Installation: The double glazing units will be carefully fitted into the window or door frames, ensuring a secure and airtight fit.
  • Finishing Touches: The installation team will make any necessary adjustments and add finishing touches to complete the process.

Related: How to Choose the Best Double Glazing Company

Phair Windows & Glass are a leading double glazing installer in Leicester. Contact our experts for a free no-obligation quotation.

Maintenance Tips

To prolong the lifespan and optimise the performance of your double glazing, follow these maintenance tips:

  • Regular Cleaning: Clean the glass and frames regularly to remove dirt and debris.
  • Check Seals: Inspect the seals around the windows for any signs of damage or wear and tear. Replace them if necessary to maintain airtightness.
  • Lubricate Hardware: Lubricate hinges, handles, and locking mechanisms to ensure smooth operation.
  • Avoid Harsh Cleaners: Use mild cleaning solutions to avoid damaging the glass or frame surfaces.

Double Glazing Services From Phair Windows & Glass

Established in 1998, Phair Windows & Glass leading double glazed window experts and offers an expert window installation service.

We are proud to be a market-leading home improvement company in Leicester and the surrounding Leicestershire areas.

If you’d like some more information about double glazing, get in touch with us for a free, no-obligation quote.

Related Articles:

How Do Double & Triple-Glazed Windows Work?

Share This Post

Latest Blog Posts

Finance Available

Since 1998

10 Year Guarantee

Fully Accredited

Free Online Quote

Professional, skilled, great communication from the on-site team - honestly, the best workmen I’ve ever had. They left the place tidy and neat. Thanks guys! They did a great job on a dreary, winter’s day with a smile. I love the new porch, which was a decent price. Honestly though, the sales guy Tom and the crew of Cal, Jake and Aaron were great. After having had a bad experience before with a different company, I’ll be using Phair Windows to replace my windows in the near future as well.

It's Quick, Free & Simple!

Request A Free Quote

Scroll to Top