Two-story home with large black-framed Horizon windows glowing at dusk

Windows

HORIZON

Slim-frame windows engineered for big views and hard winters. Made to order, installed by certified crews, and backed for life.

Duo-Tilt lock system

One hardware piece handles three actions — lock, unlock, and tilt. The hidden tilt latch means an air-tight seal and a stronger corner weld on the meeting rail.

Warm-edge spacer glazing

Intercept U-channel warm-edge spacer with Low-E argon glass creates a thermal barrier that cuts heat loss; stainless spacer available as an upgrade.

Fusion-welded frame and sash

Every frame and sash corner is fusion welded — strong and gap-free, never compromised by knock-outs. Optional Innergy rigid thermal reinforcements add support and insulation.

True Position ½" balance

Springs travel with the sash, so windows glide with far less friction and noise. Continuous over/under interlock and a sloped one-piece sill stop air and water infiltration.

Living room with a large black-framed Horizon picture window overlooking autumn trees

Styles

Seven shapes, one system

Double hung
Two operable sashes move independently and tilt inward for cleaning from inside — ideal for upper-story glass and the most common choice on Midwest homes.
Casement
Side-hinged sash cranks outward on a multi-point lock for the lowest air-leakage rate in the line and excellent natural ventilation.
Glider
Sashes glide horizontally on a track for unobstructed views and wide openings where swing space is limited.
Awning
Top-hinged sash opens outward from the bottom, so it vents in the rain. Pairs well above picture units and in baths.
Bay & bow
Projection units that add floor space — angular bay with a large picture center, or curved bow lines, factory assembled with insulated head and seat boards.
Garden
A 90° box bay with a picture window in the center — light on three sides plus glass shelving for plants.
Patio doors
Two, three, or custom panel sliders with a foot-operated deadbolt, sloped aluminum-reinforced sill, stainless roller track, and zinc-plated tandem rollers.

Window lines

Four tiers to spec from

Every style above is available across the line-up, so you can hold one look across the house and still hit the budget.

Top tier

ThermalWeld Select

The most features and options in the line: Duo-Tilt lock and system, foam-filled head, jamb, sill and sash, Innergy reinforcements, and full color, glass, and hardware customization.

Mid tier

ThermalWeld Plus

Heavy-duty cam-style locks and keepers, sash limit locks for a secure partial opening, fusion-welded corners, and upgrades to nickel, brass, or aged bronze hardware.

Value tier

DuoWeld

A straightforward welded replacement window with the core Duo-Tilt cleaning convenience and insulated Low-E glass at a builder-friendly price.

Entry tier

Edge

New-construction and rental-grade openings: welded frames, dual-pane insulated glass, and a short options list that keeps lead times tight.

Specifications

The numbers

Frame material
Fusion-welded vinyl with reinforced meeting rail
Glazing
Dual-pane Low-E, argon filled, Intercept warm-edge spacer
Balance system
True Position ½" — springs travel with the sash
Sill
Sloped one-piece sill for positive water drain-off
Insulation upgrades
Foam-filled extrusions and Innergy rigid thermal reinforcements
Interlock
Continuous over/under interlock at the meeting rail
Frame colors
Matte black, bronze, white, almond, plus woodgrain interior laminates
Warranty
Lifetime limited on frame, sash, and glass seal

Ready to price your windows?

Send us your plans for a free material takeoff or talk to a certified installer near you.