Colma is the town our office calls home, and it is unlike its neighbors. Most of its land is cemeteries; the rest is retail and a limited number of homes. HVAC work in Colma is therefore modest: upkeep and the occasional upgrade for the houses in town, and heating and cooling for its shops. Colma shares the cool, foggy weather of neighboring Daly City, so the heat runs far more often than any air conditioning.
Maintenance comes first
For the homes in town, the most useful service is usually the yearly check.
Furnace maintenance. A furnace that runs in most months wears its igniter, flame sensor and blower faster than one that runs a few winter weeks. A tune-up before the heating season cleans the flame sensor, tests the igniter and the safety switches, inspects the burners, the heat exchanger and the flue, checks the blower and its capacitor, and looks at the filter.
AC maintenance. If your home has central air or a heat pump, a spring check cleans the outdoor coil, tests the capacitor and contactor, checks refrigerant pressures and temperatures, and clears the condensate drain. On a system that sits idle for weeks at a time, this is the visit that finds a weak capacitor before the first warm day does.
If a check turns up a worn part, the technician shows you what was found and explains why it matters. You decide whether to fix it now or keep an eye on it. A maintenance plan puts both visits on the calendar so they are not forgotten.
Adding heat or cooling to one room
Additions, converted garages and back units often sit outside the reach of the existing ducts. A ductless mini-split heats and cools that space with an outdoor unit, an indoor head and a small hole in the wall for the refrigerant lines, with no new ductwork. In a town this cool, the heating side of a mini-split is the part you will use most. The ADU and granny flat guide covers sizing and placement for a separate living unit.
Shops and commercial space
The town’s retail spaces need steady heating and cooling through business hours, and a breakdown on a busy day costs more than the repair. We handle commercial maintenance and commercial repair for them.
Repairs and reaching us
If the heat stops, start with the safe checks on the furnace not heating page, then call for furnace repair. A smell of gas is different: get everyone out first, then call the gas utility or 911 from outside.
Our phones are staffed around the clock, and technicians work 8 AM to 8 PM, every day of the week. You get a written estimate, reviewed with you, before any work, with no hidden fees, and the work carries a warranty on parts and labor. From the office we also serve Daly City, South San Francisco and Brisbane.