Premium European Window Installation — Project Overview
This project highlights our installation of high-performance GEALAN windows in a waterfront residential build. Our team followed a precise, European-standard installation method designed to ensure air tightness, long-term structural stability, and maximum energy efficiency.
Step 1: Pre-Installation Assessment
Before beginning the installation, our team inspected the framing, verified true square openings, and confirmed proper waterproofing preparation. This ensures every window sits correctly, seals properly, and performs as designed for decades.
Step 2: Secure Structural Mounting with Steel Brackets
Our European-style installation uses load-bearing steel mounting brackets rather than face-screwing through the frame.
Benefits:
• Prevents thermal bridging
• Maintains integrity of the multi-chamber frame
• Ensures the window remains level and plumb
• Allows micro-adjustments for perfect alignment
Each bracket is anchored into the structure before the frame is set, guaranteeing long-term stability even in coastal wind zones.
Step 3: Airtight & Insulated Perimeter Sealing
We fill the perimeter with high-density European closed-cell insulating foam, which:
• Eliminates drafts
• Reduces energy loss
• Improves sound insulation
• Prevents moisture intrusion
This foam expands uniformly, ensuring the full cavity is sealed without distorting the frame — a key step in passive-house style installations.
Step 4: Exterior Sealing With WindowWrap™ Tape
Our final step is applying WindowWrap high-performance sealing tape around the exterior perimeter.
This forms a durable weather-tight seal that is:
• Windproof
• Waterproof
• Vapor-controlled
• UV-stable
Combined with the foam layer, the tape creates an endothermic barrier that significantly improves the building’s overall energy performance.
Final Result: A Fully Sealed, Energy-Efficient Window System
Once complete, the window is fully supported, insulated, and weather-protected. This installation method meets or exceeds European Passive House standards, ensuring comfort, efficiency, and long-term performance.
BLOG POST — “Behind the Build: How We Install High-Performance European Windows”
Installing premium European windows is more than just placing a frame into an opening — it’s a process built on precision, insulation, and long-term performance. In this project, we installed GEALAN high-efficiency windows for a waterfront home, showcasing the same installation techniques used across Europe in energy-efficient construction.
The process begins with proper framing inspection and preparation. Before a single screw is installed, we verify square openings, waterproofing layers, and structural integrity. This step is critical because even the most advanced window can underperform if it isn’t installed perfectly.
Once the opening is ready, we mount the window using structural steel brackets, a superior method compared to traditional screw-through-frame installations. These brackets keep the frame perfectly level and plumb while also preventing thermal bridging — meaning the window performs better and lasts longer.
After the frame is secured, we fill the perimeter with closed-cell insulation foam. This foam expands evenly, sealing every gap and improving both energy efficiency and sound reduction. Unlike standard construction foam, the European high-density version provides better temperature control and prevents unwanted air movement around the frame.
The final exterior step is wrapping the window with WindowWrap sealing tape, which locks out wind, water, and moisture. This creates a fully sealed envelope around the window, helping the home maintain consistent indoor temperatures and reducing energy loss.
The end result is a window system built to the same standards found in passive homes across Europe — stable, airtight, quiet, and incredibly energy-efficient. Whether you’re building new or renovating, this method ensures lasting performance and comfort.
