Salt laden water and freeze/thaw cycles cause concrete deterioration if left unprotected. The solution is Alti Construction, Ottawa’s top name in commercial waterproofing.

It’s what we do.

We’re not part-timers. Alti has the experience to identify current or future water infiltration problems that others may miss. Our partners have over 60 years combined experience completing quality projects with state of the art technology.

We excel in:

  • Traffic deck coating systems
  • Pedestrian deck coating systems
  • Hot applied rubberized asphalt waterproofing systems
  • Torch applied waterproofing systems
  • Expansion joint seals
  • Silane sealers
  • Joint sealing/ Caulking
  • Polyurethane injection
To be the best, you’ve got to use the best coatings and sealers in the industry. Alti Construction only uses elite brands such as:


Multi-level parking garage restoration.