
MAYDAY Heating and Air Conditioning Irvine
Irvine, CA
5.00 (337 reviews)
View ProfileTrue North Heating & Air is an Irvine HVAC contractor serving residential and commercial customers across Orange County. It installs variable-capacity heat pumps and standardizes on R8 insulated ductwork for duct projects.
Compare a few featured businesses in this area.

Irvine, CA
5.00 (337 reviews)
View ProfileIrvine and Orange County.
Public local listing. True North Heating & Air is one of 11 HVAC companies ProsGrade lists in Irvine, California.
12 services listed, including Central AC installation, Central AC repair and maintenance and Commercial HVAC installation and repair. Open 24 hours, 7 days a week. 77 reviews.
How True North Heating & Air compares with the other 10 HVAC companies on ProsGrade in Irvine, using public Google ratings and review counts.
Open 24 hours; call for availability.
Customers describe the installation work as professional and say the team walked them through the process or answered their questions. One customer appreciated floor protection and a tidy workspace; another praised a quiet, efficient inverter heat pump but wanted more advance explanation of its operation and the city inspection process.
Share your experience with this business. Reviews are moderated before they appear publicly.
It does not size a system from the removed equipment’s tonnage. It considers the home’s size, layout, insulation, windows, duct system, airflow and existing performance.
It diagnoses the system and explains what failed, possible causes, and practical repair or replacement options before additional work is approved.
Many California replacements may require permits, inspection and HERS verification, depending on the equipment and scope. The company says it can coordinate the applicable process.
It provides urgent and after-hours HVAC service, subject to technician availability and current operating hours. Response times can vary during high-demand periods.