Window Types

Every configuration fails differently.

Geometry determines where water sits, where hardware wears, and where air moves. Understanding your window type is the first step in understanding its restoration.

Casement

Side-hinged sash operated by a crank. Excellent seal when adjusted correctly, but hardware wear and sill exposure make them the most common restoration candidate.

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Awning

Top-hinged units that shed water while open. Their horizontal bottom rail collects moisture and is often the first component to fail.

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Double Hung

Two vertically sliding sash. Restoration focuses on balance systems, parting stops, and the meeting rail seal that governs air infiltration.

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Fixed

Non-operating units in direct-set or sash-in-frame configurations. Failures are almost always glazing- or frame-related rather than mechanical.

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Picture

Large-format fixed glazing, frequently the visual centerpiece of a room. Weight and span demand careful spacer and setting-block engineering.

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Architectural

Radius, elliptical, trapezoid, and other shaped units. Replacement is rarely economical; restoration preserves geometry that is expensive to reproduce.

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Historic

Old-growth sash predating modern manufacturing. Original wood is denser and more rot-resistant than anything milled today — a reason to keep it.

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Custom

One-off assemblies, oversized units, and discontinued factory profiles where no replacement part exists in the supply chain.

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