u value windows

U Value Windows Double Glazed Window U Value Explained

The U-value measures how effective a material is as an insulator, with lower values indicating better insulation. In the context of windows, a lower U-value means that the window will retain more heat and be more energy-efficient. 

u value windows

What’s My Current U-Value?

When it comes to energy efficiency, the U-value of a window is a key factor to consider.

Single glazed windows typically have a U-value of 5-6, while old double glazed windows can have a U-value of 3-4. Triple glazed windows are considered the most energy-efficient, with a U-value of 0.8-1.6.

However, at CozyGlaze, our double glazing upgrades with K-glass coating provide a U-value of 1.1, which is comparable to triple glazing. This means that our double glazing upgrades offer exceptional heat retention, reduce energy costs, and keep your home comfortable all year round.

How Much Money Will I Save ?

Upgrading your windows with CozyGlaze can have a significant impact on your energy bills and home comfort. Our windows have a U-value of 1.1, which is one of the lowest available in the market. The K-glass coating and argon gas-filled cavities ensure that your windows are as energy-efficient as possible. With our A-rated glass, you can be sure that you’re getting the best performance possible from your windows.

You can save up to 50% on your energy bills and reduce heat retention by up to 74%. This means that not only will you be reducing your carbon footprint and helping the environment, but you will also be saving money in the long run. Additionally, our high-quality glazing can help to reduce noise pollution, creating a more peaceful and comfortable living environment for you and your family.

Window Replacement or Window Upgrade?
As with any major work on your home, not every option will suit everyone.
At Cozyglaze, we believe that if you want to achieve great results without spending a fortune on upvc window replacement and you want to save time, double glazing upgrade service is a perfect fit for you.

Window Replacement

  • Expensive and time-consuming
  • Requires complete removal and replacement of old frames and glass
  • Requires extensive redecoration after installation
  • Can result in disruption to daily routine
  • Sometimes requires planning permission and building regulations approval
  • May not be an option in listed buildings or conservation areas

Window Upgrades

  • Cost-effective and quick
  • Replaces only the glass, leaving existing frames intact
  • Minimal to none redecoration required
  • Minimal disruption to daily routine
  • Usually no planning permission or building regulations approval required
  • Often an option in listed buildings or conservation areas
To read more about our window upgrade service click here
3 Simple Steps To A Warmer House
Step #1: Contact Us!

We are here for you. Please contact us and one of our team members will guide you through each step as well as answer all the questions.

Step #2: Quotation

We can provide you with a quote over the phone in a matter of minutes or visit you at your preffered time.

Step #3: We Upgrade!

Our team will upgrade your windows. Our lead time is 2-3 weeks and most of our upgrades take one day!

Step #1: Contact Us!

We are here for you. Please contact us and one of our team members will guide you through each step as well as answer all the questions.

Step #2: Quotation

We can provide you with a quote over the phone in a matter of minutes or visit you at your preffered time.

Step #3: We Upgrade!

Our team will upgrade your windows. Our lead time is 2-3 weeks and most of our upgrades take one day!

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