Customer asks:
I’ve heard that windows and doors affect my home’s heating costs and indoor climate, but I’m not exactly sure how. How can I be sure that my choices will improve my home’s heat retention and energy efficiency?
Aru Grupp answers:
Windows and doors are the areas in a home where heat is lost the most, which is why careful selection and proper installation are crucial. Many people only realize their importance when it’s cold near the windows in winter or the interior becomes too hot in summer. Choosing the right windows and doors, combined with professional installation, can significantly reduce heating costs and ensure a comfortable and stable indoor climate year-round.
Why do windows and doors lose heat?
Although heat escapes through walls, roofs, and floors, windows and doors are the biggest culprits. Poorly insulated frames or incorrect installation can create thermal bridges—spots where heat escapes quickly. Improper sealing or excess moisture around the window can further reduce heat retention and even cause mold, affecting both comfort and the building’s health. The right selection and professional installation help keep heat inside and maintain a pleasant and stable indoor climate throughout the year.
Material matters
Wood naturally provides excellent thermal insulation. High-quality laminated wood windows and doors withstand the variable Estonian climate, including cold, moisture, and sun exposure. Wood-aluminum solutions add extra weather resistance and durability while keeping heat inside your home.
Glass units and thermal resistance
The type of glass unit directly affects the window’s energy rating. Triple-glass units with low-emissivity coatings and argon-filled chambers significantly reduce heat loss. The Uw-value indicates the total heat retention of the entire window, not just the glass, making it essential to choose a unit that fits your home’s specific needs for optimal energy efficiency.
Installation and ventilation
Even the highest-quality windows cannot perform properly if installed incorrectly. Accurate measurement and professional installation are essential to prevent thermal bridges and excessive heat loss. Ventilation and indoor climate should also be considered to ensure a comfortable, healthy, and stable indoor environment year-round.
Exterior doors are just as important
Exterior doors make up a large part of the building’s façade. High-quality wood or wood-aluminum doors with proper sealing and insulation help keep heating costs low and temperatures stable. Poorly chosen doors can become significant points of heat loss.
To improve your home’s energy efficiency, think holistically: select the right materials, glass units, and professional installation tailored to your building’s characteristics. Good planning and quality solutions keep your home warm, reduce heating costs, and ensure pleasant indoor air year-round. Investing in the right windows and doors pays off in the long run.
If you have questions about choosing windows or doors, energy efficiency, or installation, it’s best to discuss them before making a decision. Good advice helps avoid future problems and ensures solutions that fit your home.
Get in touch with us – our specialists will help you find the right solution for your home.
📧 aken@arugrupp.ee
📞 +372 329 5650
🌐 www.arugrupp.ee
Read more about Aru SlimLine windows: Aru SlimLine – a really good window!
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