German System Windows
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02/25/2026
No matter the weather, we keep our promises!
01/27/2026
🚪 Entry doors leaking energy? Not with GSW multi chamber UPVC frame.
Multi-chamber UPVC frames reinforced with steel eliminate thermal bridging, achieving U-values as low as 0.18 BTU/hr.ft².°F for airtight balcony exits. Zero condensation risk with desiccant-filled warm-edge spacers and triple glazing, preserving full energy integrity (air infiltration just 0.1 cfm/ft²).
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Telephone
Address
7187 Jackson Road
Ann Arbor, MI
48103
Opening Hours
| Monday | 10am - 5pm |
| Tuesday | 10am - 5pm |
| Wednesday | 10am - 5pm |
| Thursday | 10am - 5pm |
| Friday | 10am - 5pm |
| Saturday | 9am - 2pm |
