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While expanding our capabilities to better serve current and future clients, Countywide Mechanical Systems remains committed to the same things that got us here – quality, steady growth, and client relationships. Through trusted partnerships and time-tested construction methods, we keep San Diego and its surrounding areas up and running with our HVAC, plumbing, electrical, and controls.

So we can remain committed to our partners and to quality, it is important for you to be able to access our services easily. If you have any questions, don’t hesitate to call us 24/7 at (619) 449-9900.

El Centro, CA
612 South J Street
Imperial, California 92251
P: 760.483.5070
Service only
Sacramento, CA
9727 Business Park Drive, Suite F
Sacramento, California 95827
P: 916.260.0820
San Diego, CA
1400 N. Johnson Ave. Suite 114
El Cajon, California 92020
P: 619.449.9900
F: 619.449.9907