Commercial Property Services
Commercial storefront glass requires replacement more often than building owners anticipate. Unlike residential windows, commercial storefronts experience constant foot traffic, thermal stress, and impact risk. Understanding when replacement is necessary protects both the building and its occupants.
Immediate replacement required: any glass with structural cracks, chips penetrating through the glass thickness, or impact damage. Cracked glass is a safety hazard — it can fail unpredictably and cause injury. Temporary boarding is a stopgap, not a solution.
Industry Best Practices
Insulating glass unit (IGU) failure: when the seal between the two panes of an IGU fails, argon gas escapes and moisture infiltrates, causing permanent fogging between the panes. IGU failure cannot be repaired — the entire glass unit must be replaced. Failed IGUs significantly reduce thermal performance and degrade appearance.
Thermal cracking: large commercial glass panes in south or west exposures can develop thermal stress cracks when partially shaded (e.g., from signage or HVAC equipment). These diagonal cracks typically run from an edge. Tempered glass is more resistant; annealed glass is vulnerable.
How D&D Commercial Services Can Help
Safety glass requirements: Ontario's Building Code requires tempered or laminated safety glass in commercial glazing within 300mm of doors and at floor level. If older buildings have non-safety glass in these locations, replacement with code-compliant glass reduces liability.
Energy performance: single-pane storefront glass has very poor thermal performance (R-1). Upgrading to thermally broken frames with high-performance IGUs can significantly reduce heating and cooling costs for retail and office tenants.
Lead time considerations: custom-size commercial glass typically requires 2-4 weeks for fabrication. Plan replacements proactively; emergency glass is expensive and limited in availability.
D&D Commercial Services handles commercial glass replacement, storefront repair, and glazing upgrades throughout Ontario.