Heritage Heating & Cooling
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Claim This BusinessAbout Heritage Heating & Cooling
Heritage Heating & Cooling operates as a family-owned and veteran-operated HVAC contractor serving O'Fallon, Edwardsville, and the broader Metro East region of Illinois alongside South St. Louis and Jefferson County, Missouri. Holding St. Louis County license MHV02516 and Jefferson County license M379, the company has cultivated a reputation over what multiple reviewers describe as years of consistent service, evidenced by their perfect 5.0-star rating accumulated across 608 client reviews. Their operational structure includes Monday closures with Tuesday through Saturday service extending from 6 AM to 7 PM, plus Sunday afternoon hours from 12:30 to 5 PM, accommodating both scheduled maintenance and urgent calls for residents throughout these interconnected metro communities.
What separates Heritage Heating & Cooling from neighboring contractors stems from their dual identity as both family-owned and veteran-operated, with explicit references to their military background appearing across customer testimonials. Their service model incorporates annual maintenance memberships that provide scheduled inspections and priority scheduling, alongside an energy savings calculator tool prospective clients can access through their website. The company maintains full licensing and bonding as explicitly stated on their , positioning them as a verified option for both residential and commercial projects across their defined service territory.
Customer narratives from verified reviews illuminate specific scenarios illustrating their service approach. Multiple reviewers highlight technician Brian, who diagnosed an outside AC unit issue rapidly and completed repairs within a constrained timeframe during a cold spell weekend. Reviewer Darin Gunnink described how a routine inspection identified what he characterized as a potentially fatal HVAC problem, prompting same-week replacement. Another reviewer, Alex Livingston, detailed securing both emergency summer AC repair and subsequently a full system upgrade, receiving the most competitive quote among three obtained estimates while working with technicians Jim and Tyler.
What Customers Say
All 608 reviews carry 5-star ratings, with at least six customers specifically naming technician Brian and highlighting his diagnostic thoroughness or emergency response. Multiple reviewers note competitive pricing as a distinguishing factor, with one customer comparing three quotes and selecting Heritage for both price and friendly service. Several reviews emphasize same-day or next-day scheduling availability during urgent situations.
Working Hours
| Sunday | 12:30–5 PM |
| Monday | Closed |
| Tuesday | 6 AM–7 PM |
| Wednesday | 6 AM–7 PM |
| ThursdayToday | 6 AM–7 PM |
| Friday | 6 AM–7 PM |
| Saturday | 8 AM–5 PM |
Services
AC Installation, Repair & Tune-Ups
Complete air conditioning services covering new installations, diagnostics, component repairs, and seasonal maintenance tune-ups.
Heater & Furnace Repair & Installation
Full heating system support including furnace installation, repair services, and heating efficiency optimization.
Ductless Mini-Split Systems
Specialized ductless mini-split unit installation ideal for older homes, room additions, or zoned climate control.
Indoor Air Quality Solutions
Air balancing, filtration systems, and humidifier or dehumidifier installation to improve residential air purity.
Digital Thermostat Setup
Smart thermostat installation and configuration for enhanced temperature control and energy efficiency.
Commercial HVAC Services
Dedicated heating and cooling installation and repair for commercial buildings and business facilities.
Emergency HVAC Response
Urgent repair services for system failures, with reviewer evidence of same-day and weekend availability.