AC Repair and Service in Monrovia

monrovia cooling
monrovia cooling

Air-Tro has been serving Monrovia residents since 1969, providing reliable and efficient air conditioner repair services. Our experienced technicians are equipped to handle a range of issues, ensuring your home stays comfortable year-round.

How Often Should I Service My Air Conditioner?

In Southern California’s warm, dry climate, air conditioners should be serviced at least once a year, ideally in the spring before the summer season begins. The region’s extended cooling seasons and airborne dust from dry conditions can strain AC systems more than in cooler climates. For homes in areas with high use or near foothills, it is recommended to schedule maintenance twice a year. Once in spring and again in fall can keep systems efficient and catch minor issues before they become major repairs.

Common AC Issues We Address

  • Unusual noises or vibrations
  • Inadequate cooling or airflow
  • Frequent cycling or system not turning on
  • Water leaks around the unit
  • Thermostat malfunctions

HVAC Maintenance Services for Long-Term Performance

Beyond repairs, we offer HVAC maintenance that helps prevent unexpected issues and supports long-term energy efficiency.

What’s Included in an AC Maintenance Visit?

  • Cleaning or replacing air filters
  • Inspecting and cleaning coils
  • Checking refrigerant levels
  • Inspecting electrical components
  • Testing thermostat function

Do you offer HVAC maintenance plans?

Yes, we provide maintenance plans that help you stay on schedule and avoid emergency repairs.

Emergency AC Repair Services

AC problems can arise without warning. Air-Tro provides emergency repair services to restore comfort as quickly as possible and prevent further complications.

The Air-Tro Advantage

  • Experience – Serving Monrovia since 1969
  • Expert Technicians – Fully trained, HVAC-certified professionals
  • Prompt Service – Quick response times for both routine and emergency needs
  • Happy reviews – Read what others in Monrovia city are saying about us.

Schedule Your AC Service Today

Ensure your air conditioner is ready to perform. Call Air-Tro now to schedule expert AC repair or maintenance.  (626) 357-3535

AC Filters, Repair & Replacement FAQs 

Why Should I Change My Air Filter?

One of the most common HVAC issues we see is a dirty or clogged air filter. Keeping your filter clean is necessary for an efficient cooling unit. The air filter protects the internal components from dust that can cause damage.

But a dirty air filter allows particles through and can cause the system to malfunction or reduce efficiency. This can result in higher power bills. We recommend cleaning or replacing your filter once or twice per year. If you live with pets or someone with allergies, replace the filter more often. Every 60 days is a good rule for these situations.

How often should I replace my air filter?

Check your air filter monthly and replace it every 2–3 months, depending on indoor air quality and system use.

What are signs my AC needs repair?

Common signs include reduced airflow, strange noises, leaks, and failure to cool properly.

How do you know when it’s time to replace your AC unit?

Since your air conditioner runs almost non-stop in warmer months, wear and tear can become noticeable. Some signs suggest it may be time for a replacement. If you notice any of the issues listed below, schedule an inspection with Air-Tro:

  • Odd sounds coming from the unit
  • Water pooling around the unit
  • Reduced cooling or higher humidity levels in your home

Most air conditioning units last about 10 years with regular maintenance. If your system is aging or showing signs of strain, contact Air-Tro Inc. to evaluate the condition of your equipment.

Other Services

How Can We Help You?

equipment icon

Heating & Cooling Equipment

The single most important element that determines a heating and air conditioning system’s performance is the quality of installation. Don’t take a chance with yours.

repair icon

Rapid Response Repairs

Our trucks are fully loaded for any emergency. Whether you’re in need of a small repair or something more serious, our trained experts have your best interests in mind.

air quality 1

Air Quality

Breathe easy knowing your air quality is taken care of. We work diligently to ensure your air quality systems are installed properly and in excellent condition to do their job.

Stay Cool All Summer

When you call Air-Tro Inc. in Monrovia, CA you can expect top-notch service at fair and reasonable prices. Our technicians believe in doing a job right the first time and will not waste your time with repairs or servicing that you do not need. During your call, your trusted technician can make recommendations for you to save money with future cooling and energy costs, and we always make sure our messes are tidied before leaving.

Call us at 626-357-3535 today for a quote and more information about our cooling services.