Delta Air Systems Ltd.
This score reflects 633 verified reviews, WSIB coverage confirmed.
How is this calculated?About Delta Air Systems Ltd.
Delta Air Systems Ltd. provides HVAC repairs and installations in Waterloo, operating 24/7. Installation work is carried out with attention to cleanliness and efficiency, and staff take time to explain the work and handle associated paperwork.
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What Customers Say
Top Strengths
Ratings Across Platforms
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Things to Know
Trusted Level
Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.
Highly Rated
Consistently rated 4.9 stars across 633 Google reviews.
WSIB Verified
Workplace Safety and Insurance Board coverage confirmed — you're protected.
BBB Accredited · A+
Better Business Bureau accredited with an A+ rating.
Open 24 Hours
Every posted day shows 24-hour availability.
What Reviews Highlight
Reviews mention: professional, knowledgeable, efficient.
Google Review Breakdown
633 totalFeatured Review
Verified review from Google
We had a Lennox furnace replaced with another Lennox furnace on Jan 28/26. From my initial contact with Delta Air Systems Service Tech Liam to Sales Consultant Matt to Install Coordinator Tammy to Install Team Scott and Fabio, all went smooth from start to finish! Everyone was on point, prompt and efficient! Scott and Fabio arrived when Tammy said they would. They were clean and efficient from the start, laying down liners and tarps to protect our flooring and keeping debris to a minimum. They w
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