Pioneers Heating & Air

AC Maintenance San Marino, CA

AC Maintenance San Marino

Project Description

A manager requested our AC maintenance service in their establishment in San Marino, CA. After the previous season, they had not changed the air conditioners’ filters, making their AC system inefficient. As a result, their staff felt uncomfortable with a lack of cool and clean air from the clogged AC unit. Dust also collected on surfaces and furniture near the vents. To ensure clean air circulation, we removed the old filters on the vents and rooftop unit, then replaced them with new ones. We also made a few adjustments to give them improved performance levels and optimum indoor comfort. Now, their staff can enjoy a comfortable working environment and clean air in every corner. The manager thanked us because they thought they might need to replace their HVAC system completely. Yet, we knew that was not what went wrong — all it needed was a little TLC and thorough cleaning! 

When was the last time you replaced your air conditioner filter or your furnace filters? Unfortunately, home and business owners can be guilty of irresponsible air conditioner maintenance. When people get busy, air filters often fall through the cracks. Yet, air filters are important to keep your space clean and safe from pollutants. In addition, maintaining a clean air conditioner filter can help your system work more efficiently, improving the air quality in your home or workplace.

How Does an Air Filter Work

A fairly common home appliance, an efficient filter is necessary for any HVAC system. These filters are composed of two elements: spun fiberglass (the same material used for attic insulation) and pleated paper encased in cardboard for structural strength. Air filters must then be installed in the return duct near a central hallway or other common areas.

HVAC filters keep pollutants from entering your system or circulating within the air. So by using materials like foam and fiberglass, these filters block out dust, dirt, pet hair, lint, mold, bacteria, and more. Most filters come with a MERV rating that indicates the type and size of pollutants they will keep out of your air ducts.

What is a MERV Rating?

The effectiveness of air filters in stopping dust and other contaminants from entering the air stream is measured by their Minimum Efficiency Reporting Value (MERV) rating. The higher the filter rating, the better the filter is at trapping small particles. Usually, a MERV 16 rating or lower is appropriate for homes, businesses, and general hospital facilities. However, for those locations requiring utmost cleanliness, such as surgical operating rooms and clean rooms, then filters with a MERV 17 to 20 rating should be used.

How Often Should Air Filters Be Replaced

Typically, it is wise to switch out the air filter every three months or 90 days. However, that timeline can vary based on such factors as the environment where you reside (i.e., arid, dusty conditions), whether you have any animals in your home and the condition and age of your HVAC system.

For households with pets, filters should be changed every 60 days or two months. However, this interval can range from 20-45 days for those with allergies or respiratory issues. On the other hand, for vacation homes or those that get little use, it is generally okay to wait around 9-12 months before exchanging air filters. In general, more frequent use means needing to replace your filter more often.

When to Change Your Air Conditioner Filter

Your AC blows warm air.

A blockage in the filter caused by dust or dirt can limit the amount of cool air passing through. When your air conditioner is not keeping the temperature cool or is blowing warm air, the first thing to investigate is the AC filter. In cases where a dirty filter is not causing the issue, it may be best to contact an experienced HVAC technician for further inspection and maintenance.

You have allergy attacks more often.

Are your allergy symptoms getting worse? Chances are it is time to switch up the air filters. Pollutants accumulate, saturating the filter and pushing them into circulation throughout the space. As a result, the allergic reactions you may experience increase dramatically.

Dust accumulates near the vents.

One important indicator of a clogged air filter is observing the difference in dust buildup around the vents compared to other areas. Noticeably dustier surfaces near the vents, while others remain relatively clean, is an unmistakable sign that it is time for a change. 

Heating and Air Conditioning Service Near Me

Have you forgotten to change your air filters again? Air filters can be quite pricey. Hence, it is better to replace them on time. Pioneers Heating and Air is a full-service HVAC company serving San Marino, CA, and the surrounding cities. We offer a comprehensive range of HVAC services, including air filter replacement, to keep your home or business comfortable all year round. Our expert team of technicians is highly trained and certified, and our customer service is always available to answer any questions. Contact us today to schedule a free service consultation!

Project Gallery


Mission St San Marino, CA, US,

Powered by