Commercial | Industrial | Residential



HVAC & Plumbing Services That Are Built To Last

Comfort-Air Engineering, Inc. and Primo Plumbing, Inc. are your San Antonio, TX air conditioning & plumbing companies dedicated to delivering amazing service. Since our founding over 50 years ago, we have perfected the way we serve our customers. When you choose to work with us, you are treated to personal attention, top-rated workmanship, and true peace of mind.

Robert and John Freund founded the company in 1964. Both are mechanical engineers from UT. They wanted to design and build air conditioning systems for residential and commercial customers who lacked indoor cooling. The second generation took over the family business in 2001, and we continue to design and build mechanical systems for residential, commercial, and industrial customers.


HVAC – TACLA00000146C
Plumbing – Patrick Freund M-41299
Mechanical Contractor – HAC146