Are cracks in brick or mortar a structural concern?

Cracks in brick or mortar on commercial, institutional, and historic buildings can be a sign of various concerns, ranging from normal age-related movement to potential structural or moisture-related issues. In New England, exposure to freeze-thaw cycles, wind-driven rain, snow, deicing salts, and seasonal moisture can accelerate masonry deterioration or cause new cracks to develop.

Not all cracks are an immediate structural concern, but they should never be ignored. Small or hairline cracks may result from natural building settlement or minor thermal movement. However, larger, stair-step, horizontal, or widening cracks may indicate foundation movement, structural shifts, rusting steel, or compromised load-bearing capacity. Even if cracks appear minor, they can allow water infiltration, which can accelerate deterioration of both masonry and interior elements, lead to efflorescence, or cause freeze-thaw related spalling and damage.

Water infiltration through cracks can undermine both the structural integrity and the performance of the building envelope. In commercial and institutional settings, unaddressed cracks can jeopardize occupant safety, long-term asset protection, and code compliance. This is particularly important for aging masonry buildings, historic properties, parking garages, and structures exposed to high moisture or salt.

The best course of action for commercial property managers, institutional operators, and owner associations is to schedule a thorough masonry inspection by an experienced professional. Proper evaluation will determine whether cracks are superficial or indicative of deeper structural, water management, or material degradation concerns. Planning appropriate repairs—such as repointing, brick replacement, crack injection, or sealing—requires an understanding of root causes, material compatibility, and anticipated New England weather impacts.

Consistent preventative maintenance, high-quality restoration work, and the use of correct materials help extend building life, maintain structural integrity, and prevent more costly failures. Inspection, evaluation, and expert planning are cornerstones of protecting your asset value and ensuring long-term building envelope performance.