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When it comes to the lifespan of double-glazing units in windows and doors, it’s akin to asking about the length of a piece of string. Several factors come into play, including the glass quality, exposure to varying weather conditions, and installation quality.

How long does double glazing actually last?

On average, double-glazed windows have a lifespan of approximately 15-20 years. However, it’s worth noting that companies often provide a guarantee for the gas-filled glazing units for a shorter duration, typically between 5 to 10 years.

Most double-glazed windows consist of two glass panes with a gas-filled space between them. Over time, this gas gradually evaporates, resulting in reduced effectiveness and poor insulation qualities. This deterioration can occur within 10-15 years.

Ensuring the proper functionality of your double glazing is crucial to prevent heat loss and save on energy bills. By maintaining your windows’ insulation properties, you can optimise energy efficiency and maximise cost savings.

The longevity of a double-glazing unit exceeding 30 years can vary significantly depending on the location. While windows are engineered to endure harsh weather conditions, areas that are particularly exposed or open may face more challenges. This consideration sometimes leads individuals to contemplate the adoption of triple glazing, although such measures are seldom necessary in the United Kingdom.

Instead, the recommended approach is to replace any double glazing that has become compromised or ineffective. By addressing failed units promptly, you can ensure the continued performance and energy efficiency of your windows.

Feeling cold air around the perimeter seal of your window signifies that the glass unit is no longer effective. It’s time to either replace the windows or retrofit the double-glazing units with new ones (double or triple-glazed) to restore insulation and prevent heat loss.

Do You Need To Upgrade Your Windows?

If you need to upgrade your windows to double glazing, take advantage of our 0% finance options and get your brand-new windows installed today. For more information about how we can seal your home with our windows or doors, speak to our expert team today and get a free no-obligation quote.

Our customers are saying great things.

Trusted & Accredited

We have a host of accreditations to our name, including being one of the few approved suppliers of Rockdoor designs and installations in the North West, so you know that when you choose Plan-it Windows, you are making a sound investment in world-class products and services.

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Everything spot on

Built 3 houses, was recommended Plan-it by a friend of the family, gave them a try and will be using them again. No hassle, left them too it, everything spot on. Houses look great.

Mr Hilton - Tong Moor

Really friendly & really efficient

Suffered a burglary and so needed new French doors ASAP, received a flyer through the door the week before which was lucky, gave them a call, really friendly, really efficient and cheap too, they did everything quickly due to my circumstances. First class Plan-it. Thanks guys

Miss McDonald - Darcy Lever

Over the moon with the installation

A friend told me about the service from Plan-it and I give them a ring. They came on time and didn’t take ages, price was really really good and we are over the moon with installation as we was told 3 days and they was done in two. One of best buys I’ve ever made.

Mr Hynes - Bolton

Very thorough & very friendly

Great set of lads, very thorough and very very friendly, straight forward explained everything dead simple, no fancy jargon or strategies, just good customer service and real easy. Windows look great and the bi-fold is amazing.

Mr & Mrs McCormack - Astley Bridge