Specifications & Testing Data
| Frame material | Vinyl (uPVC) with V-weld fusion-welded frames; metal-clad options |
|---|---|
| U-factor (NFRC) | 0.24 – 0.3 |
| Solar heat gain coefficient (NFRC) | 0.22 – 0.32 |
| Design pressure (DP) rating | NAFS tested and certified; ratings vary by unit — verify per configuration |
| AAMA performance class | NAFS (North American Fenestration Standard) certified |
| ENERGY STAR zones | Northern |
| Glass options | Dual-pane Low-E w/ argon, Triple-pane, Tempered, Obscure |
| Available styles | Casement, Awning, Single-Hung, Double-Hung, Slider, Picture |
Engineered Where Winter Means It
All Weather Windows has manufactured in Edmonton, Alberta since 1978 — a city whose January makes Boise's look gentle. That origin story is the entire pitch: windows engineered as a matter of course for cold that would be a design extreme anywhere in the lower 48. The Apex series is the current expression, led by All Weather's V-weld fusion-welding technology, which closes off the corner joints where vinyl frames traditionally develop their first air and water leaks.
The Numbers
Cold is where the Apex shows off. Dual-pane Low-E argon configurations test in the 0.26–0.30 NFRC U-factor range, and triple-pane packages — a mainstream option in the Canadian market rather than an exotic upsell — reach into the mid-0.20s. Air-tightness is the other Canadian obsession: NAFS-certified air, water, and structural ratings across the line, with the welded-corner construction backing the numbers as the frame ages. ENERGY STAR Northern-zone qualification is the design floor, not the stretch goal.
Where We Reach for It
Winter-first buyers. If the January gas bill and the cold-spot bedroom are why you're replacing windows, the Apex's triple-pane math is some of the best value we can quote in vinyl.
High-elevation and plateau homes. Mountain Home's harsher swings and the valley's colder pockets sit comfortably inside an envelope designed for Alberta.
Sell-later homeowners. The 20-year sealed-unit warranty is transferable — it follows the house, not just the original buyer, which becomes a genuine line item when you list.
Honest counterpoints: it's still vinyl, so we steer dark colors on unshaded west walls toward lighter finishes or a fiberglass line instead. And for maximum-glass modern aesthetics, slimmer-framed options (Milgard Trinsic, or fiberglass) show more daylight per opening.
Cross-Border Product, Hometown Service
The window is Canadian; the accountability is Garden City. Wood Windows Inc is an authorized All Weather dealer — we measure, order, install with our own employee crews, and handle any warranty claim locally, same as we have for every brand we've carried across 46 years in the Treasure Valley.
Want the Apex quoted against the Milgard Tuscany for your house? One free measure covers both: (208) 376-2200 or the form on this page.
Frequently Asked Questions
Why carry a Canadian window brand in Idaho?
Because Edmonton winters are a harder test than Boise winters. All Weather engineers for the Canadian prairies — deep-cold glass packages, fusion-welded frames, serious air-infiltration numbers — and that cold-climate DNA translates directly to Idaho mountain towns, high-desert plateaus, and any homeowner who prioritizes winter performance per dollar.
What is V-weld technology, practically speaking?
All Weather's fusion-welding process for frame corners as part of the Apex series — designed to virtually eliminate the air and water leak paths that conventional corner joints develop as frames age and cycle. Corners are where vinyl windows typically start leaking; welding them shut for good is the point.
How does the Apex warranty compare to Milgard's?
Different shape, both strong. All Weather backs sealed units with a 20-year comprehensive transferable warranty — transferable being the notable word, since it survives a home sale. Milgard's Full Lifetime Warranty is longer for the original owner but doesn't transfer the same way. Planning to sell within a decade? Transferable coverage is a real listing point.
What does the Apex series cost installed?
Competitive with premium domestic vinyl: most Treasure Valley configurations run $700–$1,150 per window installed, with triple-pane packages toward the top of that range. As always, the quote is a firm written number after a free in-home measure.
Sources & Testing Data
Last reviewed 2026-07-04 by Wood Windows Inc — (208) 376-2200