PVC windows are widely used in Lithuanian homes and apartment buildings because they’re affordable, practical, and low maintenance. But as the years go by, their energy efficiency often decreases — especially if the original double-glazed units have started to fail. If your windows are letting in the cold or showing signs of condensation, you don’t need to replace the whole unit. There’s a better way to improve the thermal performance of PVC windows: upgrade the glazing.

Why Double Glazing Wears Out in Lithuania’s Climate

Lithuania’s cold winters and warm summers can be hard on traditional double glazing. Over time, the insulating gas between the panes escapes, and moisture can start to build up. Even if the window looks intact, it could be letting valuable heat escape — driving up your heating costs.

A Smarter Alternative: LandVac Vacuum Glazing

Instead of tearing out your existing windows, you can keep the frames and simply upgrade the glass. LandVac vacuum glazing is an advanced technology that works exceptionally well in Lithuania’s climate. It uses a vacuum layer between panes, dramatically reducing heat transfer while staying ultra-thin — perfect for PVC frames.

For example, by replacing standard double glazing with LandVac Optimum S1.10 (25.1mm) glass, you can improve the window’s U-value from around 2.64 W/m²K to 1.07 W/m²K. That’s a major leap in insulation, without altering the window's appearance.

Need an Easier Installation? Try LandVac Enhance + VacuGask™

If you’re looking for easier installation and lasting performance, LandVac Enhance (8.3mm) combined with VacuGask™ sealing strips is a great solution. It improves energy efficiency while fitting into most standard PVC window frames with minimal adjustment.

Key Benefits for Lithuanian Homes

• 🔥 Superior Insulation: Keeps heat inside during winter and prevents overheating in summer.

• 💧 Less Condensation: Vacuum glazing keeps the inside pane warmer, reducing moisture buildup.

• 🧰 No Frame Replacement: Keep your existing PVC frames – just upgrade the glass.

• 💸 Lower Bills: Reduce your energy consumption and heating costs year-round.

• 🏡 Quiet Comfort: Vacuum glazing also helps reduce outdoor noise, perfect for city apartments.

Upgrade Without Compromise

Whether you live in Vilnius, Kaunas, or a rural town, vacuum glazing is a smart investment for energy-conscious Lithuanian homeowners. No need for messy renovations or full window replacements — just a high-performance upgrade that pays off for years.

Ready to upgrade your PVC windows in Lithuania? Contact our vacuum glazing specialists in Lithuania for a free quote today!

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