HVAC questions answered
Frequently Asked Questions
Practical answers about heating, cooling, ducts and indoor air for Irvine homeowners and property managers.
Before you reach out
Common HVAC questions from Irvine residents
If your question is not here, our individual service pages go deeper into specific problems.
Which parts of Irvine does Irvine HVAC Company serve?
We serve Irvine neighborhoods including Shady Canyon, Hidden Canyon, Orchard Hills, Turtle Ridge, Turtle Rock, Laguna Altura, Great Park, Northwood Pointe, Quail Hill, Lower Peters Canyon, Woodbury, Stonegate, Portola Springs, Northwood, Westpark, Woodbridge, Walnut, University Park and Town Center.
Do you work on both homes and commercial buildings?
Yes. We serve homeowners, property managers, multifamily communities and commercial spaces such as offices and retail units, including rooftop equipment.
How do I know whether to repair or replace my system?
Useful factors include the age of the equipment, the cost of the repair, the condition of other major parts and how well the system keeps you comfortable.
What should I check before asking for a repair?
Confirm the thermostat is set to the right mode and temperature, check that the filter is not clogged and look for a tripped breaker. If a breaker trips again after one reset, leave it off.
How often should my HVAC system be serviced?
Once a year is a sensible baseline for most homes. Systems that run heavily, homes with pets and commercial equipment may benefit from more frequent visits.
Why is one room in my home always warmer than the others?
Common causes include leaky or undersized ducts, sun exposure, distance from the air handler and a thermostat location that does not represent the whole home. Duct sealing, airflow adjustments or a ductless mini split can help.
What filter should I use?
Use the size printed on your current filter frame and a rating your system can handle. Very restrictive filters can reduce airflow on some systems. Ask about a filter that balances air quality and airflow.
Is a smart thermostat compatible with my heat pump?
Most are, but heat pumps need specific configuration for reversing valve and auxiliary heat settings. Correct setup is important for comfort and efficiency.
Do I need duct cleaning or duct sealing?
Cleaning removes buildup inside ducts. Sealing closes leaks at joints and connections. Many homes benefit more from sealing, and some benefit from both. An inspection shows which applies.
What should I do if I smell gas near my furnace?
Leave the home right away without operating switches, and call the gas utility or 911 from a safe location outside. Once the utility has cleared the area, the furnace can be inspected.
Can you help with HOA requirements for outdoor equipment?
Your association sets its own rules, so it is wise to confirm approval steps with them before installation.
Do you service apartment and condo communities?
Yes. Multifamily HVAC service covers repairs, unit turns and maintenance for property managers and associations.
Still have a question?
Reach out through our contact page with your question.