Alti Construction is Ottawa’s first name in shot blasting, the most effective way to prepare horizontal concrete surfaces prior to coating applications.

Other contractors retain Alti for their Blastrac shot blasting needs. It’s true. Alti is one of the few companies that actually owns its own shot blasters, so you can be sure our experienced operators know this equipment inside and out. And that’s crucial.

A novice operator may accidentally remove too much concrete or leave marks, requiring filler, wasting time and money.


Multi-level parking garage restoration.