Image of a double glazed window being opened.


Double-glazed windows offer enhanced durability, usually serving homeowners well for 20 to 35 years, subject to various determining factors:

Material Quality: Opting for superior-quality components, such as advanced glass and resilient frames, guarantees extended window longevity compared to their inferior counterparts.

Installation: The window’s lifespan hinges significantly on its correct installation. Engaging a FENSA-approved contractor is vital, as they meet the industry standards. Inadequate installation can pave the way for air and water leaks or even warping, slashing the windows’ lifespan.

Maintenance Regime: Periodic upkeep, encompassing frame cleaning and gap sealing, is key to prolonging your double-glazed windows’ life.

Local Climate: The environment, be it extreme temperatures, heightened humidity, or exposure to severe weather, can influence the duration your windows last.

Usage Frequency: Windows subjected to frequent operation or intense stress might depreciate quicker.

When maintained properly and installed by FENSA-approved professionals, double-glazed windows can endure for up to 35 years, offering homeowners the perks of energy efficiency, acoustic insulation, and an elevated property value.

It’s noteworthy that double-glazed windows from the 1980s were not equipped with the energy-saving prowess of today’s versions. Here’s why:

Glass Evolution: 1980s double glazing did not employ the cutting-edge glass techniques of today. Contemporary versions use low-emissivity (Low-E) coatings, which bounce heat into the room, mitigating heat escape.

Gas Content: Today’s double-glazed units are packed with insulating gases like argon or krypton, unlike the conventional air in older units.

Frame Composition: Past variants typically featured aluminium frames, which don’t insulate as efficiently as today’s vinyl, fibreglass, or composite frames.

Seal Efficacy: Seals in older models weren’t as adept at thwarting air ingress, undercutting the window’s insulating capacity.

Although dated double-glazed windows surpass single-glazed ones in energy conservation, modern iterations are leagues ahead in efficiency. Modernizing to today’s double-glazed windows can amplify energy savings, uplifting your home’s comfort and market value.

Whatever property you are buying, the property will be checked, and significant defects will be reported to you in a clear and concise manner. If you are concerned about any defects in your property, get a quote or call us on 02036910451.