What Sylmar's foothill location means for your AC
Sylmar sits at the northern tip of the San Fernando Valley, against the San Gabriel Mountains where the 5, the 210 and the 14 meet. That position shapes the HVAC work we do here:
- Wind and dust. Santa Ana winds funnel through the passes north of Sylmar and coat condenser coils with dust and debris. A clogged outdoor coil makes the compressor run hot; rinsing it is part of our tune-up.
- Wildfire smoke. The 2008 Sayre Fire burned through Sylmar, and smoke from foothill fires can reach homes during fire season. Tight returns and better filters keep it out of the house.
- Larger lots and older homes. Many properties have detached rooms, guest units or horse barns, and older homes with original ductwork in the attic.
Sylmar is in the City of Los Angeles (LADBS permits, LADWP power).

Heating and furnace repair in Sylmar
Winter nights at the foot of the mountains can get cold, so a working furnace matters in Sylmar. We repair gas furnaces, heat pumps and wall heaters: no heat, short cycling, a pilot or igniter that will not light, a blower that runs without warm air, and inducer motors that hum or squeal. More on furnace repair.
AC installation in Sylmar
When an older Sylmar system is past repair, the replacement should be sized with a load calculation, with the coil matched to the new outdoor unit and the ductwork checked. A heat pump replaces the AC and the furnace's heating in one system; ductless mini splits suit guest units and detached rooms without ducts. See AC installation and heat pump installation.
Air ducts and indoor air quality in Sylmar
Dust from windy days and smoke from fire season end up in the return ducts. We clean and seal ducts, replace damaged runs and add higher-grade filters and air cleaners: air duct cleaning and indoor air quality.
Also serving Pacoima
We cover Pacoima, just south-east of Sylmar around Whiteman Airport and the 118, from this page. Pacoima's smaller single-story homes and older wall heaters need the same AC repair, furnace repair and duct work we do in Sylmar, and we offer same-day AC service and 24/7 emergency repair there too.

Sylmar AC repair questions
How often should a Sylmar condenser be cleaned?
At least once a year before summer, and again after a windy stretch or a nearby fire if you see dust or ash on the fins. A clean coil lowers the pressure the compressor works against.
Do you repair HVAC in guest houses and detached rooms?
Yes. We repair the central system and ductless units in guest units, and can add a mini split to a detached room that has no heating or cooling.
Is emergency AC repair available in Sylmar and Pacoima?
Yes, 24/7 emergency AC repairs are available in both.

What customers say
"Our AC went out on a 100-degree day. Sam came out right away and got things going again, for a low fee."
"Sam is a life saver! ... Was also very knowledgeable and honest with his recommendations for my aging HVAC."
"We needed ductless heating and AC service urgently... Our home now stays comfortably warm in winter and cool in summer."