Caulk/Sealant is the first line of defense against moisture infiltration within the exterior building envelope. Typically, you find caulk/sealant around window and door perimeters, control/expansion joins, copings, and settlement cracks or other locations containing movement, as these are the areas that are most vulnerable to moisture.

When installed incorrectly, the sealant is detrimental to a structure’s long-term stability. This is because inappropriate applications of sealant can trap moisture, which can cause a multitude of undesirable conditions, including accelerated rates of corrosion in structural steels and accelerated deterioration of mortar and masonry due to extended freezing and thawing while saturated.

Over time, the sealant around windows, doors and expansion joints degrades and requires replacement to prevent water leakage.

At Harling Masonry Restoration, we have experts who ensure not only that the sealant is installed properly, but also the sealant blends in to its environment, enhancing the aesthetics of your building’s exterior.



We take great care to:

  • Ensure the old sealant does not contain controlled materials to protect your safety and the safety of our employees.
  • Properly cut out and dispose of the caulk/sealant and accessory materials such as foam backer rods.
  • Correctly clean and prepare the bonding surfaces that will be re-caulked.
  • Install new closed cell foam backer rods in expansion joint replacements or deep cracks.
  • Skillfully install and tool the new sealant to ensure proper bonding and movement.

We provide a full range of commercial caulking & sealing services for building repairs/renovations, and various joint & surface repairs.

Signs it’s time to reseal or re-caulk:

  • Cracking
  • Delamination
  • Peeling or missing sections of caulking
  • Noticeable airflow in already caulked areas
  • Increased energy bills