iStock_000054187262_Large

HELPING TO BUILD
THE SILICON VALLEY

FOR OVER 100 YEARS

24 HOUR EMERGENCY SERVICE

Your emergency is our emergency! When time is not on your side, call O.C. McDonald’s 24-hour live operator and we’ll have one of our many experienced technicians address your issue with speed!

24/7 LIVE OPERATOR:

(408) 295-2182

SERVICE AND REPAIR

We believe in repair before replacement. We also believe in preventative maintenance – saving our customers thousands! Ask about our 10-Point Plumbing Check and our 10-Point Furnace Check.

NEW INSTALLATIONS

With over 100 years experience in heating and cooling, from basic to custom installations, we have the expertise to complete any job.  Our technicians will work with you to find the best options for your needs.

© O.C. McDonald. All rights reserved.