Trusted Los Angeles HVAC Service
When you need a reliable heating and cooling company in Los Angeles, Highland HVAC is the name to call. We've been keeping local homes and businesses comfortable year after year, building our reputation one satisfied neighbor at a time. Our technicians are local, not dispatched from across the state, which means shorter waits and a real understanding of the climate patterns, housing stock, and ductwork quirks that shape how HVAC systems here perform and fail.
From a single no-cool emergency to complete system replacements, ductless mini-split installations, and seasonal maintenance programs, our team handles every kind of residential and commercial heating and cooling need. We offer prompt service and give you upfront pricing before any work begins, no hidden fees, ever. Our trucks carry the parts that fail most, capacitors, contactors, igniters, flame sensors, blower motors, and thermostats, so most repairs are finished in a single visit.
Whether your air conditioner is tripping the breaker, your furnace is short-cycling, or you're simply planning ahead for a system past its prime, one call to (909) 310-3775 gets a skilled local technician headed your way with everything needed to diagnose the problem the same day whenever possible.

Heating and Air Conditioning Service Across Los Angeles
Whether you own a townhouse, a rental property, or a commercial space in town, we have the know-how and equipment to handle every heating and cooling need. Our technicians bring years of hands-on experience with central air conditioners, gas and electric furnaces, heat pumps, and ductless mini-splits across the region, and we pay close attention to the climate patterns, housing stock, and local code requirements that shape how systems perform here.
On the residential side, we take care of everything from quick fixes, like a weak capacitor, a pitted contactor, a dirty flame sensor, or a seized blower motor, to tracking down refrigerant leaks, full system change-outs, and ductless additions. Every new system we install is sized with a proper load calculation rather than guesswork, so you get even temperatures and sensible utility bills instead of a unit that short-cycles itself to an early death. Our seasonal tune-ups clean coils, verify refrigerant charge, test safety controls, and check static pressure, the single best way to extend equipment life.
Commercial work is a big part of what we do as well. We maintain and repair rooftop units, split systems, and ventilation equipment for restaurants, shops, offices, and multi-unit buildings, and we know that every hour of downtime hurts your bottom line. To keep disruptions short, we keep common commercial parts stocked, diagnose quickly, and plan repairs around your operating hours whenever possible.
Quick Heating and Cooling Help in Los Angeles
If your heat or air quits, how fast help arrives matters more than anything else. That's why we keep scheduling flexible across the area and answer every call with a live person. Urgent calls typically see a technician within a day, and we prioritize a failed furnace in a cold snap or a dead AC in the heat ahead of routine work.
These are the problems that come up most when something breaks at home: warm air from the AC, a condenser that hums but won't start, a furnace that lights for a few seconds and quits, a breaker that trips every time the system kicks on, an evaporator coil that has iced over, a condensate drain overflowing into the furnace cabinet, or a thermostat that has quit. Nearly all of these come down to a part we already carry: capacitors, contactors, igniters, flame sensors, universal control boards, and standard fittings. You'll see the price up front, and that's the price you pay.
A few minutes of caution before we arrive can prevent a much bigger repair. An iced-over AC should be turned off at the thermostat with the fan set to "on", which lets the coil thaw safely. Running it frozen can flood the drain pan and damage the compressor. A short-cycling furnace, or any burning smell, means it's time to kill power at the furnace switch and call us right away.
Keeping Your Los Angeles HVAC System Running Longer
The best way to avoid a mid-season breakdown is simple maintenance. We recommend that homeowners replace filters every one to three months, keep vegetation trimmed two feet back from the outdoor condenser, rinse the condenser coil each spring, and schedule a professional tune-up twice a year, cooling in spring and heating in fall, so small problems get caught while they're still inexpensive.
Age matters too. Most central air conditioners run 12 to 15 years, furnaces 15 to 20, and heat pumps 10 to 15 with regular service. If your system is past that window and showing symptoms, such as climbing utility bills, rooms that never quite reach temperature, or repairs stacking up season after season, a planned replacement is almost always cheaper and much easier on you than an emergency one during the first heat wave of summer.
If comfort problems do show up, acting quickly keeps them small. A weak capacitor is a quick fix. The same capacitor ignored for a season can take the compressor with it and turn a minor repair into a full system replacement. It's smart to keep our number saved on your phone so you can reach us at the first sign of trouble. Early intervention saves time, money, and sleepless nights.
Common HVAC Problems in Los Angeles
Ask any homeowner around here what HVAC trouble looks like and the answers sound familiar: the AC that quit during the hottest week of the year, the furnace that woke everyone up with a loud bang at 2am, the system that runs all day but never satisfies the thermostat. Behind those stories are predictable culprits: worn capacitors and contactors, low refrigerant charge, undersized returns, and years of skipped maintenance. Our technicians run into these problems every week and carry the parts to fix most of them on the first trip.
Local HVAC Experts
Living and working here gives us firsthand knowledge of what local homes need to stay comfortable. No matter the brand or system type, our team brings the right tools and proven methods to get your home comfortable again.
Facing a Comfort Emergency?
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Call (909) 310-3775 NowWhat We Offer
From single-family homes to commercial properties, our team covers every comfort need in the area, including:
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Call (909) 310-3775 NowThe Reason Los Angeles Keeps Calling Us
Highland HVAC treats this community like our own backyard, because it is. We show up when we say we will, we diagnose before we quote, and we put real numbers on both repair and replacement so you can decide based on facts, not pressure. Our technicians are seasoned on everything from 20-year-old furnaces to inverter heat pumps, our trucks carry the parts that actually fail, and our work is tested before we leave. It's the reason so much of our local work comes from referrals.
HVAC FAQ for Local Residents
Other Communities Nearby
Beyond this community, we cover the surrounding towns with the same fast service.