Reliable Comfort for
Your Home.

Frequently Asked Questions

Answers about AC repair, installation, and heating service for your home.

• How often should I service my HVAC system?

  We recommend servicing your HVAC system at least once a year, typically in the spring for AC and in the fall for heating. Regular maintenance helps improve efficiency, prevent breakdowns, and extend the life of your system.

• What are the signs my AC needs repair?

  Common signs include weak airflow, unusual noises, warm air instead of cool, rising energy bills, or frequent cycling. If you notice any of these, it is a good idea to schedule an inspection.

• Is it better to repair or replace an old AC unit?

  If your system is over 10 to 12 years old and needs a major repair, replacement is often more cost-effective long term. We will give you an honest recommendation either way.

• How long does a new AC installation take?

  Most residential AC installations take one to two days, depending on the size of the system and any ductwork adjustments needed. We will give you a clear timeline before work begins.

• How do I know what size AC unit I need?

  We perform a full load calculation based on your home’s square footage, insulation, windows, and layout to recommend the right-sized system. An oversized or undersized unit wastes energy and wears out faster.

• Can you install a new AC system in an older home?

  Yes, we regularly retrofit older homes with new ductwork, line sets, and electrical work as needed to support a modern AC system.

• What are the signs my heating system needs repair?

  Uneven heating, strange noises, a sudden spike in energy bills, or the system cycling on and off frequently are all signs it is time for a checkup.

• Do you offer financing through Service Finance?

  Yes, we partner with Service Finance to offer flexible financing options, so you can spread the cost of your new HVAC system or repair into manageable monthly payments.

• Do you offer a warranty on your work?

  Yes, all of our installations and repairs are backed by a workmanship warranty, in addition to any manufacturer warranties on parts and equipment.

• What is U M Air Inc.'s contractor license number?

  U M Air Inc. is fully licensed under California Contractor’s License #C-20 1050013.