HVAC Professional

Delta Air Systems Ltd.

Waterloo, ON

Emergency ServiceWSIBBBB AccreditedResponds to Reviews

+1 226-640-5110 Website

2 Credentials Verified

0out of 100

Trusted

ProScore

4.9★ Google|2/4 Sources

This score reflects 633 verified reviews, across 2 platforms, licensed and verified.

How is this calculated?

Data verified: Jun 2026

About Delta Air Systems Ltd.

AI-generated summary from verified data sources

Delta Air Systems Ltd. is an HVAC contractor serving Waterloo and surrounding communities. Highly rated with 4.9★ on Google across 633 reviews. WSIB registered — a mark of professional credibility.

Google

4.9★ (633)

BBB

Excellent

Rated on 2 independent platforms

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What Customers Say

AI analysis of 5+ verified Google reviews

Top Strengths

Installation teams consistently described as clean, efficient, and thorough - 'left everything spotless', 'laying down liners and tarps to protect flooring'

Staff take time to educate customers and answer questions - 'took the time to answer all of our questions', 'teaches me things as he works', 'No question is too simple'

Comprehensive service approach including handling paperwork - 'took care of submitting our rebate and warranty information'

professionalknowledgeableefficientclean installationfriendly service

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

2 of 4 verified

Google

4.9/5

Review Site B

Not found

BBB

Excellent

Review Site C

Not found

The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.

Things to Know

Trusted Contractor

Meets ProScore verification standards for quality and reliability.

Highly Rated

Consistently rated 4.9 stars across 633+ Google reviews.

WSIB Verified

Workplace Safety and Insurance Board coverage confirmed — you're protected.

Google Review Breakdown

633 total

594

Featured 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

Tom Shangas

Google Review

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Homeowner Guides

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Frequently Asked Questions

Is Delta Air Systems Ltd. licensed?

Licensing status has not been verified for Delta Air Systems Ltd.. Contact them directly to confirm current credentials before hiring.

Does Delta Air Systems Ltd. have insurance?

Yes, Delta Air Systems Ltd. has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.

What is Delta Air Systems Ltd.’s rating?

Delta Air Systems Ltd. has a ProScore Trust Score of 74/100 (Trusted), calculated from 2 verified data sources including 633 Google reviews.

Where is Delta Air Systems Ltd. located?

Delta Air Systems Ltd. is a hvac serving Waterloo, Ontario. You can reach them at +1 226-640-5110. View their full profile on ProScore for verified reviews and credentials.

Photos & Work

1 photo

Data Transparency

SourcesGoogle, BBB, and Ontario regulatory records

Last updatedJune 2026

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Checked by ProScore

What is the ProScore?

The ProScore aggregates ratings from multiple review platforms into a single score from 0 to 100. Unlike platforms that show only their own reviews, the ProScore gives you the complete picture. Scores are capped for providers with limited source verification.

≥80

Elite

≥65

Trusted

≥50

Good

≥30

Basic

<30

Caution

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Delta Air Systems Ltd.

About Delta Air Systems Ltd.

Is this your business?

What Customers Say

Top Strengths

Ratings Across Platforms

Things to Know

Google Review Breakdown

Featured Review

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Homeowner Guides

Frequently Asked Questions

Photos & Work

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