Families across Bulgaria are facing rising energy bills, especially those living in older buildings with outdated windows. In cities like Sofia, Plovdiv, and Varna, many homes built during the socialist era still have single glazing or poorly fitted frames. These allow heat to escape quickly, forcing households to overuse heating systems – and pay for it.
Energy efficient glazing refers to advanced window technologies that minimise heat loss and maximise insulation. The most innovative of these is vacuum glazing, a type of glass unit that uses a thin vacuum space between two panes of glass. This vacuum acts as a powerful insulator, significantly reducing heat transfer – even better than triple glazing, but in a much slimmer profile.
With low U-values (a measure of heat loss), vacuum glazing helps homes retain warmth in winter and stay cool in summer, making it ideal for both energy savings and comfort.
In cold Bulgarian winters, old windows can be a major source of energy waste – sometimes accounting for up to 30% of heat loss. By switching to energy efficient glazing, families can:
Vacuum glazing achieves this with a U-value as low as 0.4 W/m²K, offering superior performance compared to standard double glazing.
Whether you live in a panelka apartment in Sofia, a 1960s-era family house in Plovdiv, or a stone-built property in Veliko Tarnovo, energy efficient glazing is a game changer. Because vacuum glazing is so thin, it can often be installed in existing frames without needing complete window replacements – reducing costs and disruption.
This makes it particularly useful for older homes that may have preservation requirements or where interior mouldings and frames should be retained.
Compared to double or triple glazing, vacuum glazing offers:
And because it contains no noble gases (like argon or krypton), it’s better for the environment and fully recyclable.
If you’re living in an older building and looking for a way to improve comfort, reduce your energy costs, and contribute to a greener Bulgaria, energy efficient glazing is the solution. Vacuum glazing provides high performance with a minimal footprint – perfect for today’s eco-conscious families.
➡️ Explore our vacuum glazing solutions or request a quote today.