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
“Fullerton homeowners tend to keep their houses a long time. We help their heating and cooling systems last just as long — and replace them gracefully when it is time.”
8605 Santa Monica Blvd
West Hollywood, California 90069
Area Served
Fullerton is one of North Orange County’s oldest and most established cities, with historic homes near the downtown core, the college neighborhoods around Cal State Fullerton, and the custom homes of Sunny Hills in the northwest hills. Mars HVAC provides heating and cooling service across Fullerton, in houses that range from 1920s Spanish revivals to modern hillside builds.
Our Fullerton services include AC repair, AC installation, furnace repair, ductless mini-splits, heat pumps, and maintenance plans. The city’s mature housing stock means we do a great deal of system replacement here — and replacement done well is more than swapping boxes. We check the duct system that the new equipment will breathe through, confirm the return air is adequate, and size the new system to the house as it exists today, additions and all. In Sunny Hills and the older custom neighborhoods, we also service the zoned and multi-system setups those larger homes often have.
Fullerton summers are properly hot — this is inland Orange County, well out of the marine layer’s reach by afternoon — and older homes with minimal insulation lean hard on their air conditioners. Heat pumps have become a favorite Fullerton replacement: one system for the hot season and the mild winter, installed with the duct corrections these houses usually need. For homes near the university that serve as rentals or shared housing, our maintenance plans keep systems documented and dependable between tenants.
Permits, Title 24 testing, and warranty registration are standard on every Fullerton installation, and our repair work starts with a diagnosis you can understand before you spend anything.
Fullerton’s long-term homeowners have seen plenty of contractors come and go, and we earn our place here the slow way: show up when promised, diagnose honestly, and document everything. A Mars HVAC visit produces findings you can read and decisions you can take your time with. When replacement day comes for one of Fullerton’s mature systems, our estimates include the duct evaluation and the calculations — the unglamorous work that determines whether the new system actually delivers the comfort you paid for.
We cover Fullerton from Sunny Hills and Raymond Hills to the downtown neighborhoods, Golden Hill, Amerige Heights, and the areas around Cal State Fullerton and Fullerton College. The hillside homes in the northwest run larger, with zoned systems and equipment in creative locations, while the flatland neighborhoods hold some of the county’s finest older housing stock. Fullerton’s many long-term homeowners are exactly who our maintenance plans are built for: predictable seasonal visits, written condition reports, and a service history that adds up to confidence when replacement day eventually comes.
Fullerton homeowners on our maintenance plans get two things this city values: reliability and records. Seasonal tune-ups keep systems ready for inland summer heat and cool winter nights, priority scheduling protects members during heat waves, and the written condition report after every visit builds the kind of service history that supports a home’s value at sale. For the hillside homes with zoned systems, we maintain every zone and document each one separately.
Many of our Fullerton 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:
