Answers to common questions about HVAC repair, installation, and maintenance.
General Questions
What areas do you service?
We serve the entire Antelope Valley, including Palmdale, Lancaster, Quartz Hill, Rosamond,
Lake Los Angeles, Littlerock, Pearblossom, and Sun Village.
Are you licensed and insured?
Yes. Working Class HVAC is a fully licensed C-20 HVAC Contractor (License #1024283). We
carry full liability insurance and workers' compensation for your protection and ours.
Do you offer free estimates?
We offer free, no-obligation estimates for new system installations and replacements. For
repairs and diagnostics, we have a standard service call fee, which is often waived if you
proceed with the repair.
Repair & Maintenance
Why is my AC running but not cooling?
Common causes include low refrigerant (freon), a dirty condenser coil, a bad capacitor, or a
clogged air filter restricting airflow. It is best to turn off the unit to prevent further
damage and call us for a professional diagnostic.
How often should I change my air filter?
In the High Desert, we recommend checking your filter every month. Due to dust and wind,
most homes need a replacement every 1 to 3 months. If you have pets or allergies, monthly
replacement is best.
What does a seasonal tune-up include?
Our multi-point tune-up includes cleaning the condenser coils, checking refrigerant levels,
inspecting electrical connections, checking the capacitor, lubricating moving parts, and
ensuring the thermostat is calibrated correctly.
New System Installation
How much does a new AC unit cost?
The cost varies significantly based on the size of your home, the efficiency rating (SEER2)
of the unit, and the condition of your existing ductwork. We provide free estimates to give
you an exact price tailored to your budget.
How long does a new installation take?
Most standard residential installations can be completed in one day. More complex jobs
involving new ductwork or zoning systems may take two days. We always aim to minimize
disruption to your home.
Do you offer financing?
Yes! We offer flexible financing options through trusted partners. We have plans available
including 0% interest for 18 months for qualified buyers. Visit our Financing Page to learn more.