SashProjects that prove it.
Drag each slider to see the transformation. Performance specs below every reveal.
Lakefront Great Room
Hood Canal, WA
Twelve custom casements in a 40-foot run of glazing, each unit mitered to a 6° splay to follow the curved wall. The clients wanted uninterrupted sightlines to the water — we achieved it with 1-3/4″ sight lines and structural aluminum that eliminated the need for intermediate mullions.
U-Value
0.22
SHGC
0.38
Air Infiltration
0.01 cfm/ft²
Sight Line
1-3/4″
Frame Type
Thermally broken aluminum
Glazing
Triple-pane argon-filled
Capitol Hill Victorian
Seattle, WA
22 replacement units across three floors, each sized to match original rough openings within 1/16″ to avoid disturbing historic trim. Heating costs dropped 34% the first winter according to the homeowner's utility comparison.
U-Value
0.28
SHGC
0.32
Air Infiltration
0.02 cfm/ft²
Sight Line
2-1/8″
Frame Type
Wood-clad aluminum composite
Glazing
Double-pane low-E
Passive House Addition
Portland, OR
Architect Meredith Solvang specified 0.18 U-value maximum for passive house certification. We hit 0.16 with a proprietary spacer system and krypton fill. The 18-foot curtain wall became the thermal boundary — zero condensation at -12°F ambient.
U-Value
0.16
SHGC
0.52
Air Infiltration
0.006 cfm/ft²
Sight Line
1-1/2″
Frame Type
Passivhaus-certified thermally broken
Glazing
Triple-pane krypton-filled, warm-edge spacer
Mercer Island Remodel
Mercer Island, WA
The owners wanted their kitchen to feel connected to the deck year-round. We replaced four small sliders with an 8-foot lift-and-slide door and two flanking fixed lights, all in a continuous frame with matching hardware.
U-Value
0.25
SHGC
0.40
Air Infiltration
0.015 cfm/ft²
Sight Line
2″
Frame Type
Powder-coated aluminum
Glazing
Double-pane low-E with argon
The factory behind
the precision.
Every unit leaves our shop with a traveler card listing its exact dimensions, U-value test result, and the name of the glazer who sealed it.
The Shop
14,000 sq ft. CNC aluminum processing.
Float glass cutting to ±0.5mm.
Dimensional Tolerance
Every unit is measured three times: after cutting, after welding, after glazing. Anything outside tolerance gets remade.
Materials & Hardware
Thermally Broken Aluminum
4mm thermal break, AAMA 2605 finish
European Tilt-Turn Hardware
Maco multipoint locking, 200k cycle rated
Triple-Pane Glazing
Krypton or argon fill, warm-edge spacer
Structural Silicone Seal
35-year warranty, UV-stable compound
Certifications & Compliance
Lead Time
weeks from signed drawings
Warranty
frame + seal, transferable to next owner
Service Area
WA · OR · ID · BC
Direct delivery + install crews
From the people who specified them.
Architects. Builders. Homeowners. All with specific numbers.
"Meredith specified 0.18 U-value for our passive house certification. Sash hit 0.16. That's not rounding — that's a different level of manufacturing discipline. We've spec'd them on every passive project since."
Meredith Solvang
Principal Architect, Solvang Atelier
Eastside Passive House Addition, Portland OR
"I've been building custom homes on the water for nineteen years. The first time I put a Sash unit in a rough opening, it fit on the first try. Every unit. That's not common. We use them on every lakefront spec now."
Derek Holmgren
Owner, Holmgren Custom Homes
Twelve lakefront builds, Hood Canal WA
"We'd been bleeding heat through those thirty-year-old double-hungs for years. The new units went in February. Our January gas bill dropped $180 compared to last year. The kitchen actually gets warm now."
Patricia & James Tran
Homeowners
Capitol Hill Victorian, Seattle WA
"The traveler card system is what sold me. Every unit comes with documented test results from the factory. When an inspector asks for glazing performance data, I hand them a card. Done."
Sasha Brennan
Project Manager, Cascadia Build Group
Mercer Island whole-house remodel
Trusted by builders and architects across the Pacific Northwest
The 48-page guide
architects actually keep.
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