03/21/2026
MASONRY REPAIR AND RESTORATION
Did you know there are 6 mortar types and each has its own strength and application in masonry construction, repair and restoration.
To produce a successful masonry repair/restoration project key factors that determine mortar type selection are compressive strength of masonry unit, composition of existing mortar, flexibility/shrinkage, vapour permeability, environmental conditions and appearance ( colour & texture).
The primary goal of the new mortar is to select a mortar type that is compatible with existing materials allowing the structure to breath and accommodate small movement
The “ stronger is better “ mentality is incorrect for masonry repair and restoration, as it leads to permanent, irrevocable damage ( spalling and cracking) to your home/investment.
When receiving bids from Masonry Contractors for your repair and/or restoration project be sure to ask what mortar type they are planning on using and a brief explanation of why. The answers should aid your decision on who you select for a successful,long lasting, outcome.
Note: the 6th mortar type not shown is
Lime/sand mortar, ideal for historical restoration to ensure maximum breathability.