Plenty of Los Angeles homes were never built with ductwork — older bungalows, Spanish-style houses, garage conversions, and room additions often rely on window units or nothing at all. Ripping open walls to install full ductwork is expensive and disruptive. That is...
In Southern California, your air conditioner works hard all summer and then your heater sits idle for months — until the first chilly evening when you flip it on and hope for the best. October is the ideal time for a fall HVAC tune-up: the cooling season is winding...
HVAC Services
“Santa Ana has some of the most character-filled homes in Orange County, and some of the oldest heating systems. We know how to care for both.”
8605 Santa Monica Blvd
West Hollywood, California 90069
Area Served
As Orange County’s county seat and one of its oldest cities, Santa Ana is full of homes with real history — the Victorian and Craftsman houses of Floral Park and French Park, mid-century neighborhoods, and everything built since. Mars HVAC provides heating and cooling service across Santa Ana, and we are comfortable in homes of every age, including the ones where the furnace predates the freeway system.
Our Santa Ana services include AC repair, AC installation, furnace repair, ductless mini-splits, heat pumps, and maintenance plans. In the historic districts, we often work with floor furnaces, wall heaters, and early central systems that need careful evaluation — sometimes a thoughtful repair keeps a good unit running for years, and sometimes safety makes replacement the only responsible answer, and we will tell you which one you are looking at. We also add air conditioning to older Santa Ana homes that were built without it, including ductless options that avoid tearing into original plaster and woodwork.
Santa Ana sits inland enough to see genuinely hot summers, and many of its older homes have little insulation and single-pane windows that make cooling a challenge. Right-sizing equipment, sealing ducts, and improving airflow make a measurable difference in these houses, and we address all three rather than simply installing a bigger air conditioner. For newer homes and apartments across the city, we provide the same full range of service, from AC repair to heat pump installation.
Every Santa Ana installation is permitted and Title 24 tested, and our maintenance plans keep both heating and cooling ready year-round for busy households that cannot afford a breakdown.
Santa Ana homeowners call us for straight answers, and that is what we deliver. Every visit starts with listening — what changed, when it changed, and what the house has been doing — followed by measurements that confirm or correct the theory. If a repair is safe and sensible, we make it. If a piece of equipment has reached the point where repairing it would be throwing good money after bad, we say that too, and we explain exactly why. Either way, the decision stays yours.
We work across Santa Ana, from Floral Park, French Park, and Washington Square in the north to the South Coast Metro edge and the neighborhoods around Santa Ana College. Santa Ana homeowners often ask us about two things: cooling homes that were never designed for it, and keeping older heating equipment safe. For the first, we design around the house — ductless where ducts would do damage, compact ducted systems where attic space allows. For the second, our furnace visits in Santa Ana always include the combustion and venting checks that older equipment deserves.
Maintenance matters doubly in Santa Ana’s older homes, where heating equipment may be decades into its service life. Our seasonal visits check the things age attacks first — heat exchangers, venting, ignition components, blower bearings — and document the system’s condition so you can plan a replacement on your timeline instead of an emergency one. Cooling tune-ups each spring keep added-on air conditioners honest, too, verifying charge and clearing the drains that older installations so often neglect.
Many of our Santa Ana customers also work with our sister companies: Universal Inspect for home inspections, 411 Mold Expert for mold inspection and testing, and 911 Drain Lines for plumbing. Together we cover the systems your home depends on.
From our Family of Services:
