HVAC company · Mokena, IL
Allegiance Heating & Cooling
4.9 from 532 Google reviews#1 of 12 HVAC companies near Chicago Last updated Sep 25, 2026
85SCORE
About Allegiance Heating & Cooling
Looking for the best HVAC contractor in the Mokena, IL area? Allegiance Heating & Cooling is the local heating and air conditioning expert!
From the company's website
At a glance
- Trades
- HVAC
- In business
- 27 years (since 1999)
- License
- d (as listed by the company, not yet verified)
- Service area
- Mokena, Orland Park, Frankfort, Joliet, IL & The Surrounding Are y, an approve
- Address
- 8027 189th St, Mokena, IL 60448
- Highlights
- Family-ownedFree estimatesEmergency serviceFinancing available
Services
- AC repair / service
- Heating repair
- Furnace service
- Heat pump service
- Ductless mini-split
- Indoor air quality
- HVAC maintenance
- HVAC installation
How the 85 score breaks down
Rating quality40.1 / 45
Review volume19.6 / 25
Review recency15.0 / 15
Years in business10.0 / 10
Verified license0.0 / 5
Scores are calculated the same way for every company. See the method.
What customers say
5★519
4★3
3★3
2★0
1★7
I looked around all over for a place that would install my externally venting vent hood for me including the ductwork. These guys came through! Very kind, helpful, and cleaned up after themselves!
Google review, Sep 21, 2026
Very courteous, thorough, and fairly priced!
Google review, Sep 21, 2026
Excellent, courteous service.
Google review, Sep 17, 2026
Rating distribution and reviews from the company's public Google listing.
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