Fall & Winter HVAC Services

Bay Area winters are mild, which is exactly why heating faults tend to go unnoticed until the first cold night. Here is the fall and winter work we do for homes and businesses, in the order it usually comes up, with a link to the page that covers each service in full.

Fall & winter services, in calendar order

1. September – November

   Fall heating tune-up

   Spring and fall tune-ups prepare a system for the season ahead. Before the heat comes on for winter, a technician checks your furnace or heat pump, including the furnace heat exchanger, where cracks can let carbon monoxide leak.

   • Residential HVAC maintenance
   • Twice-a-year maintenance schedule
   • Fall furnace checklist
   Request this service

2. October – November

   Commercial heating-season maintenance

   Pre-season tune-ups get your building's heating equipment ready for peak demand, so problems turn up on a scheduled visit instead of a cold morning with the building open.

   • Commercial HVAC maintenance
   • Commercial HVAC repair
   Request this service

3. November – December

   Commercial refrigeration & ice machine maintenance

   Restaurants, grocery stores and walk-in coolers run around the clock. Scheduled maintenance catches problems before they cost you product, and we are factory-authorized for Manitowoc Ice, Hoshizaki and Scotsman ice machines.

   • Commercial refrigeration maintenance
   • Walk-in cooler repair
   • Ice machine repair & service
   Request this service

4. November – February

   No-heat & furnace repair, 24/7

   A furnace that will not turn on in cold weather needs a technician now. Emergency HVAC service is available 24/7 throughout the Bay Area, whether it is late at night, early morning or over the weekend.

   • Residential HVAC repair
   • 24/7 emergency HVAC repair
   • Commercial HVAC repair
   • Emergency refrigeration repair
   Request this service

5. December – February

   Furnace or heat pump replacement

   When a furnace is past repairing, the choice is usually a new gas furnace or a heat pump, which heats and cools from one system. We install both, and every job is backed by our 1-year parts & labor warranty.

   • Residential HVAC replacement
   • Heat pump vs furnace in the Bay Area
   • Gas furnace vs electric heating
   • California HVAC rebates
   Request this service

Reading before you book

This page is for booking the work. For the reading, our Seasonal HVAC Guide covers preparing a Bay Area home for each season, and the Furnace & Heating Guide collects our articles on furnace warning signs, tune-up checklists and repair-or-replace decisions.

Schedule your service ↓

Written and reviewed by Jim McKinny, owner of Cool Aid Air Conditioning & Refrigeration — California C-20 and C-38 licensed, EPA Universal certified, second generation of a family business serving the Bay Area since 1966. Every job we complete is backed by our 1-year parts & labor warranty.