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We will work with you to find HVAC solutions tailored to your requirements. We always provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home or business.


3024 Chapman Avenue, Suite 187, Orange CA 92869

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(714) 323-3264



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Frequent Questions


Why should I purchase a new heating or air conditioning system?

At Semper Fi Air, we realize that purchasing a heating or air conditioning system is no small matter. However, if your existing system is old, in need of repair or simply inefficient, purchasing a new unit, one which can be as much as 60% more efficient than a system purchased just 10 years ago, can offer long-term benefits.


Should I cover my outdoor unit in the fall and winter?

You should never operate an outdoor unit when it is covered. Covering the unit during operation can impede necessary airflow and can cause system damage. For details regarding your location’s HVAC system recommendations, speak to your local, licensed professional HVAC dealer. We hope this covers it all.

What is the proper size HVAC system for my home?

Sizing the equipment load requires the consideration of several factors. Ceiling height, construction, window size and placement and dozens of other variables all need to be considered to properly size a heating and/or cooling system. A professionally conducted load calculation is the foundation of an effective system.


Can frost, ice, dirt or other debris keep the outdoor unit of my cooling system from operating effectively?

Anything that prevents airflow from making its way to the outdoor coil may affect the efficiency and performance of your system. To avoid this, keep the space around the equipment clear. To determine if your unit is suffering from inadequate airflow, contact us. Blocked air flow to air conditioners and heat pumps can lead to larger problems. So let’s keep it clean, folks.