HVAC MAINTENANCE AND TUNE-UPS IN THE BAY AREA, CA
HVAC MAINTENANCE & TUNE-UP SERVICES IN HAYWARD & THE BAY AREA
Airstars HVAC services and tunes up heating and cooling systems for homes in Hayward, Fremont, Union City and the surrounding East Bay. Call us to book a spring AC tune-up or a fall furnace tune-up.
Your heating and cooling system is likely the most expensive appliance in your home. Just like your car needs regular oil changes to run smoothly, your HVAC system requires annual maintenance to perform at its best.
Neglecting your system leads to efficiency loss, higher PG&E bills, and premature failure. At Airstars, our Precision Tune-Ups are designed to catch small problems before they turn into expensive emergency repairs.
WHAT OUR CLIENTS SAY ABOUT US
★★★★★
I had problems with my heater not starting I call 5 companies and Airstars was the first to respond I make appointment for the same day and the technician came with parts same day and fix the heater good quality service, thank you
Miguel B.
★★★★★
I have nothing but the highest praise for Juan. He was diligent, knowledgeable, friendly, polite, shared some great info. I had initially hired Airstars to just replace a thermostat in an old oven but ended up purchasing a completely new one. No regrets. They made it painless. Will 100% hire them again for whatever appliance needs.
EM S.
★★★★★
Rafael and team have been very responsive, thorough, and accommodating to ensure my HVAC and ductwork are back in better shape than ever. They took pictures and explained everything to me to ensure I knew every step and the extra effort they put in to create a great customer experience!
Dustin S.
OUR HVAC WORK IN THE BAY AREA




WHY IS MAINTENANCE ESSENTIAL?
According to Energy Star, proper maintenance is the most effective way to ensure your system runs efficiently.
1. Lower Energy Bills
A dirty or neglected system has to work harder to heat or cool your home. For example, a refrigerant undercharge of just 10% can increase operating costs by 20%. Regular tuning restores efficiency and keeps your monthly bills low.
2. Protect Your Warranty
Did you know that most manufacturer warranties (from brands like Trane, Carrier, and Lennox) require proof of annual maintenance? If a part fails and you cannot prove the system was maintained, the manufacturer may void your warranty.
3. Extend System Lifespan
Routine maintenance reduces the stress on key components like motors and compressors. A well-maintained system can last 15–20 years, while a neglected one may fail in just 10.
4. Safety & Air Quality
For gas furnaces, maintenance is a safety issue. We check for carbon monoxide leaks, cracked heat exchangers, and gas line issues to keep your family safe. Noticing a burning smell from the heater at the first cold snap? Our guide explains when it is just dust and when to call.
THE AIRSTARS “VIP” MAINTENANCE PLAN
Join our Annual Maintenance Club and enjoy total peace of mind. We take care of scheduling so you never have to worry about your system.
Plan Benefits Include:
- Two Precision Tune-Ups Per Year: One for Heating (Fall) and one for Cooling (Spring).
- Priority Service: You jump to the front of the line during busy heatwaves and cold snaps.
- 15% Discount on Repairs: If you do need a repair, you automatically save on parts and labor.
- No Overtime Charges: We never charge extra for nights or weekends.
What Is Included in a Tune-Up?
We don’t just “kick the tires.” Our NATE-certified technicians perform a rigorous multi-point inspection and cleaning.
❄️ Spring AC Tune-Up Checklist
- Condenser Coil Cleaning: We wash away dirt and debris to maximize heat rejection.
- Refrigerant Check: We measure operating pressures to ensure the charge is correct.
- Electrical Inspection: Tightening loose connections and measuring voltage/amperage on motors.
- Condensate Drain Cleaning: Clearing the drain line to prevent water leaks and mold growth.
- Capacitor Testing: Checking start/run capacitors (a common failure point).
- Thermostat Calibration: Ensuring your system reads the temperature accurately.
Fall Furnace Tune-Up Checklist
Carbon Monoxide Test: A final safety scan of the airflow.
Heat Exchanger Inspection: Checking for cracks or corrosion (crucial for CO safety).
Burner Cleaning: removing soot and rust to ensure a clean, blue flame.
Ignition Test: Verifying the hot surface ignitor or pilot light works reliably.
Blower Motor Check: Inspecting the belt (if applicable) and lubricating the motor.
Safety Control Testing: Testing limit switches and flame sensors.
Gas Pressure Adjustment: Ensuring the gas valve is set to manufacturer specifications.
SERVICES WE OFFER
Heating, cooling and indoor air services from Airstars HVAC.
- AC Repair
Diagnosis and repair of central air, heat pumps and ductless systems - AC Installation and Replacement
Sizing, replacement and new cooling installs - Heating Installation and Repair
Furnace and heating repair, replacement and installs - Heat Pump Repair and Installation
Ducted and ductless heat pump work - Ductless Mini-Split Installation
Single and multi-zone ductless systems - Air Duct Cleaning
Duct cleaning, sealing and airflow checks - Indoor Air Quality
Filtration and indoor air quality upgrades - Plumbing
Home plumbing repair and installation
SERVICE AREAS
Airstars serves homes across the Bay Area and the Central Valley, including:
- HVAC Service in Hayward, CA
- HVAC Service in Oakland, CA
- HVAC Service in Fremont, CA
- HVAC Service in Pleasanton, CA
- HVAC Service in San Ramon, CA
- HVAC Service in Walnut Creek, CA
- HVAC Service in San Jose, CA
- HVAC Service in Sunnyvale, CA
- HVAC Service in Palo Alto, CA
- HVAC Service in Sacramento, CA
- HVAC Service in Elk Grove, CA
- HVAC Service in Stockton, CA
HVAC MAINTENANCE FAQS
How often should I service my HVAC system?
Ideally, your system should be serviced twice a year: once in the spring for your Air Conditioner and once in the fall for your Furnace or Heat Pump. This prepares your equipment for the upcoming season of heavy use.
Can I do maintenance myself?
Homeowners should change their air filters every 1–3 months and keep the outdoor unit clear of leaves and debris. However, tasks like checking refrigerant levels, testing electrical voltage, and cleaning internal components require professional tools and training to be done safely.
Does a tune-up really save money?
Yes. The Department of Energy estimates that routine maintenance can save you up to 30% on energy costs.
What happens if I skip maintenance?
Your system will likely still run, but it will lose about 5% efficiency per year. Over time, it will become louder, cost more to run, and eventually suffer a major breakdown—usually on the hottest or coldest day of the year.
What does a spring AC tune-up include?
We clean the condenser coil, check refrigerant operating pressures, test capacitors and contactors, clear the condensate drain and check the thermostat and airflow so the system is ready for summer.
What does a fall furnace tune-up include?
We inspect the burners and heat exchanger, test the ignition and safety controls, check the flue and venting, replace or check the filter and confirm the furnace heats the house evenly.
CONTACT AIRSTARS HVAC
BOOK HVAC MAINTENANCE IN THE BAY AREA
Tell us what the system is doing and where the equipment sits, and we will get you booked. Call us or send the request form and we will reply to your inquiry.
OUR SERVICE AREA


