Double-framed timber windows

Client asks:

I need to replace the windows of a building located in a heritage area. What solution is suitable, and how can the building’s appearance be preserved?

Aru Grupp answers:

Windows in heritage areas are often the most prominent architectural details of a building. When replacing them, it is essential to preserve the original appearance, window layout, and proportions, while complying with local authority and heritage protection requirements.

Aru Grupp offers solutions that combine the quality of traditional carpentry with modern technology and energy efficiency. Our double-frame inward‑and‑outward opening wooden windows are ideal for historical buildings, where neither appearance nor functionality can be compromised.

Why choose double-frame wooden windows?

• Historical appearance: The outer frame and glass selection maintain the building’s traditional look.
• Convenient and secure operation: The open window position can be fixed with a hidden mechanism operated from the handle.
• Energy-efficient and quiet: The inner frame can accommodate 2- or 3-layer glass units, improving energy efficiency and indoor climate.
• Durability: High-quality wood and modern technology ensure long-lasting performance for decades.

Practical solutions:

• In-out opening Aru SV-2.1: Ideal when the main goal is preserving the historical appearance while moderately improving energy efficiency.
• In-out opening Aru SV-3.2:  Suitable for areas with heavy traffic or where higher thermal insulation and noise reduction are required.

All our windows are manufactured with profiles that suit the building and preserve the original window layout using mullions or wooden bars. Our solutions are perfect for Tallinn’s wooden architecture districts, historical quarters in Tartu, and Kuressaare’s Old Town.

At Aru Grupp, we work closely with each client to ensure solutions that are architecturally accurate, energy-efficient, and long-lasting.

Contact us to find heritage-appropriate wooden windows for your building that preserve its historical look while providing modern comfort.

📧 aken@arugrupp.ee
📞 +372 329 5650
🌐 www.arugrupp.ee