Category: electrical-services Charging at home changes how an electric vehicle fits into daily life. Instead of planning trips around a public charger, Lakewood homeowners can plug in at night and leave in the morning with a full battery. A proper EV charger...
Category: ac-cooling Even in October, California weather can surprise you. Irvine still gets warm Santa Ana afternoons well into fall, which means your air conditioner is still doing real work. When Irvine homeowners search "ac repair near me," they are...
Apple Valley's desert climate fools a lot of homeowners. Summer gets all the attention, so the furnace sits quietly through months of heat — then the first cold desert night hits in October or November and the heater kicks on for the first time in half a year....
Beaumont summers do not negotiate. Triple-digit afternoons are a normal part of life in the San Gorgonio Pass, and when the temperature climbs, your air conditioner goes from background appliance to the hardest-working machine in your house. The systems that fail in...
October is the sweet spot for heating-system maintenance in Alhambra. Summer's heat is behind us, the first cool nights are arriving, and your furnace or heat pump has been sitting idle for months. A fall tune-up now means your system starts the heating season...
If you live in Anaheim, you have probably noticed it: a fine layer of dust on every surface a day after you clean, allergy symptoms that flare every spring, and those late-summer weeks when wildfire smoke drifts in and the sky turns hazy. Orange County's warm...
Out in the high desert, Adelanto homes ask a lot of their electrical systems. Summer temperatures push air conditioners to run for hours on end, winter nights drop cold enough that heaters and heat pumps kick on regularly, and wind-blown dust works its way into...
Banning's pass climate runs hot — summer temperatures routinely push cooling systems to their limits, while winter nights can dip low enough to need real heat. For many Banning homes, a ductless mini-split system is the most flexible way to handle both. Here is...
October in Agoura Hills means cooler evenings in the foothills and the first nights you'll actually reach for the thermostat. If your furnace has been sitting idle since spring, now is the time to make sure it will fire up reliably when you need it. A little...
Aliso Viejo may sit a few miles from the coast, but inland heat still finds its way into the city every summer — and a struggling air conditioner always seems to pick the hottest week of the year to give up. The good news is that most AC breakdowns give warning signs...
HVAC Services
“Tustin has old trees, older homes in the middle of town, and brand-new ones at the edges. Our team is comfortable in all of them.”
8605 Santa Monica Blvd
West Hollywood, California 90069
Area Served
Tustin stretches from the historic homes and giant ficus trees of Old Town to the master-planned villages of Tustin Ranch and the new construction rising on the former Marine base at Tustin Legacy. Mars HVAC serves the whole city, and the range of housing — 1920s cottages, 1960s ranch homes, and homes built this decade — means our technicians see every generation of heating and cooling technology, sometimes on the same street.
Our Tustin services include AC repair, AC installation, furnace repair, ductless mini-splits, heat pumps, and maintenance plans. In the older neighborhoods, we replace played-out furnaces and air conditioners, correct duct systems that were never designed for the equipment attached to them, and add cooling to homes that have managed without it. In Tustin Ranch and Columbus Square, we maintain and repair the higher-efficiency systems those homes came with, and help owners plan replacements as the earliest of them reach the end of their service life.
Tustin’s inland location means real summer heat, and the city’s two-story homes are famous among HVAC technicians for upstairs bedrooms that never quite cool down. Airflow measurements, duct sealing, and in some cases a ductless unit for the primary suite fix what a bigger condenser cannot. Tustin Legacy’s new homes, built to current Title 24 standards, benefit from maintenance that keeps their efficient systems actually performing at rated efficiency.
Every Tustin installation is permitted and verified, and our maintenance plans include the written condition reporting that helps you budget for your system’s future instead of being surprised by it.
Tustin homeowners get a measured, documented approach from Mars HVAC: airflow readings, duct inspections, and load calculations behind every significant recommendation. That discipline matters in a city where one street holds 1920s cottages and the next holds homes built last year — the right answer is different for each, and it comes from the measurements, not from habit. Repairs are explained in plain language, replacements are proposed only when the evidence supports them, and maintenance members always know exactly where their systems stand.
Our Tustin work spans Old Town, Tustin Meadows, Laurelwood, Tustin Ranch, and the Columbus Square and Village neighborhoods of Tustin Legacy. The Legacy homes present an interesting moment: built to modern energy codes with efficient equipment, they are now reaching the age where that equipment needs its first serious service decisions, and their owners benefit from honest condition reporting rather than sales pressure. In Old Town and the older tracts, we handle the full replacement cycle — load calculation, duct evaluation, permitted installation — for systems that have served their homes for decades.
Tustin’s mix of very old and very new systems makes maintenance records especially valuable, and our plans are built around them. Each visit — cooling in spring, heating in fall — produces measurements and a written condition report, so a Tustin Legacy homeowner knows exactly how their builder-installed system is aging, and an Old Town homeowner knows exactly how much life their furnace has left. Planning beats surprises, in Tustin as everywhere.
Many of our Tustin 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:
