Business Details
32 Years
experience
Trusted Manufacturer of High-Quality Windows & Doors in Seattle
Established in 1994 by Hannes Hase, HH Windows & Doors brings European window and door technology to North America, combining state-of-the-art manufacturing with skilled craftsmanship. Our focus on quality, energy efficiency, and customization has made us a trusted partner for architects, contractors, and homeowners. Centrally located in Seattle, we serve residential and commercial projects across the United States and Canada. Our products, including Passive House-grade windows and doors, are engineered for durability, low maintenance, and superior thermal performance. We prioritize domestic manufacturing to reduce lead times, shipping costs, and environmental impact while ensuring long-term service and support.Our commitment to innovation and customer collaboration allows us to deliver tailored solutions that meet exacting specifications. With decades of experience, we remain dedicated to advancing sustainable building practices through high-performance wood and aluminum systems. Our teams expertise ensures every product meets rigorous quality standards, from design to installation. We take pride in creating windows and doors that enhance architectural beauty while delivering unmatched functionality and energy savings.
Services
Passive House Windows
Tilt & Turn Windows
Bifold Doors
Custom Entry Doors
Aluminum Tilt & Turn Windows
Horizontal Pivot Windows
Vertical Pivot Windows
Outswing Casement & Awning Windows
Details
- Year established: 1994
Highlights and features
- We offer state-of-the-art European manufacturing equipment and skilled craftsmanship.
- Our products deliver consistent high quality, short lead times, and reasonable prices.
- We specialize in custom projects for architects, contractors, and homeowners.
- Our windows and doors achieve U-values as low as .16 for superior energy efficiency.
- We provide domestic manufacturing advantages, including reduced shipping delays and embedded energy.
What people say
Best engineered wood window
Nicest windows I have ever seen
Dramatic and rewarding addition
Superior performance
Unmatched ventilation and durability
Services
Passive House Windows
Our Passive House-grade windows are engineered for ultra-low energy consumption, achieving U-values as low as .16. These windows use triple-glazed glass, thermally broken frames, and advanced sealing systems to meet rigorous sustainability standards. Ideal for high-performance residential and commercial buildings, they reduce heating costs by up to 90% while maintaining sleek, modern aesthetics tailored to American architectural preferences.
Tilt & Turn Windows
Tilt & Turn windows combine three operating modesfixed, hopper, and casementfor unmatched versatility. With U-values as low as .16 (triple pane), these windows offer superior energy efficiency, soundproofing up to 47 dB, and easy maintenance. Their slender design complements modern architecture, while multi-point locking systems ensure security and airtight seals for long-term durability in residential and commercial settings.
Bifold Doors
Bifold doors create seamless indoor-outdoor transitions with panels that fold entirely out of sight. Available in widths up to 21 feet and 22 opening configurations, they feature concealed multi-point locks for security and triple-overlay construction for energy efficiency. Customizable in wood or aluminum, these doors enhance natural light and ventilation while maintaining thermal performance with U-values as low as .23.
Custom Entry Doors
Custom European entry doors combine traditional German lip design with modern energy efficiency. Constructed with triple-overlay frames and multi-point locking systems, they achieve U-values as low as .16. Available in oversized or non-mullion French door styles, these doors offer enhanced weather tightness, durability, and aesthetic flexibility with wood or aluminum cladding options.
Aluminum Tilt & Turn Windows
Aluminum Tilt & Turn windows merge low-maintenance durability with energy efficiency, achieving U-values as low as .17 (triple pane). Their thermally broken frames and triple-gasketing systems provide soundproofing up to 47 dB and airtight seals. Available in RAL or anodized finishes, these windows support large sizes and modern architectural designs while ensuring long-term performance in residential and commercial applications.
Questions
What makes your windows energy efficient?
Our windows use triple-glazed glass, thermally broken frames, and triple-gasketing systems to achieve U-values as low as .16, significantly reducing energy loss.
Do you offer custom sizes?
Yes, we specialize in custom windows and doors, including oversized and non-standard designs tailored to your project’s requirements.
Are your products suitable for commercial buildings?
Yes, our Passive House-grade windows and doors meet commercial performance standards for energy efficiency, security, and durability.
What materials do you use?
We use laminated solid wood (e.g., Douglas-Fir) and aluminum-clad options, combining natural insulation with low-maintenance finishes.
How do your lead times compare to European imports?
Domestic manufacturing reduces lead times by eliminating transatlantic shipping delays, ensuring faster delivery without compromising quality.
Can I get a warranty?
We stand behind our craftsmanship with warranties covering materials and workmanship, reflecting our confidence in product longevity.
