Fast, affordable AC repair, furnace repair, heat pump service and HVAC installation for Ontario homes and businesses. Same-day appointments. 24/7 emergency service. Flat, upfront pricing.
Call (855) 459-5498When the air conditioner stops cooling in the middle of a Ontario heat wave or the furnace goes quiet on a cold night, you need an HVAC company that answers the phone and shows up. Los Angeles Air Conditioning Heating provides air conditioning repair, heating repair, furnace and heat pump service, ductless mini split installation, duct repair and complete HVAC replacement throughout Ontario and the surrounding communities of Upland, Montclair, Chino, Rancho Cucamonga, Claremont, Pomona.
Our technicians carry parts for every major brand, quote a flat price after the diagnosis and finish most AC and heating repairs on the first visit. Whether you need emergency AC repair at midnight, a furnace tune-up before winter or a new energy-efficient system sized correctly for your home, one call to (855) 459-5498 handles it.
Every service below has its own Ontario page with details, common repairs and answers to the questions we hear most from local homeowners.
When your air conditioner quits on a hot afternoon in Ontario, you do not want a callback tomorrow. Our AC repair technicians reach homes across…
Ac repair in Ontario »Air conditioning service in Ontario keeps your system efficient through the long California cooling season. We clean, test, tune and repair central…
Ac service in Ontario »Central air repair in Ontario for split systems, packaged rooftop units and heat pumps. If the whole house is warm, the outdoor unit is silent or the…
Central air repair in Ontario »A spring AC tune-up in Ontario is the cheapest insurance against a mid-summer breakdown. Our technicians inspect, clean and test every component of…
Ac tune-up in Ontario »AC installation and replacement in Ontario with properly sized equipment, clean workmanship and pricing you understand before we start. Whether your…
Ac installation in Ontario »AC not cooling in Ontario? An air conditioner that runs but blows warm air usually has a low refrigerant charge, a frozen evaporator coil, a failed…
Ac not cooling repair in Ontario »AC compressor repair in Ontario for units that hum, click, trip the breaker or simply will not start. The compressor is the heart of your air…
Ac compressor repair in Ontario »Frozen AC coil in Ontario? Ice on the indoor coil or copper lines means airflow or refrigerant is off, and running it will damage the compressor. We…
Frozen coil and ac noise repair in Ontario »Emergency AC repair in Ontario, 24 hours a day, 365 days a year. When the air conditioner dies during a heat wave, at night, on a weekend or on a…
Emergency ac repair in Ontario »Heating repair in Ontario for furnaces, heat pumps, wall heaters and packaged units. When the heat stops on a cold night in Ontario, our technicians…
Heating repair in Ontario »Furnace repair in Ontario for gas and electric furnaces of every brand and age. A furnace that will not ignite, keeps shutting off or blows cold air…
Furnace repair in Ontario »Furnace service in Ontario before the first cold snap keeps your heater safe, efficient and reliable. Our furnace tune-up inspects burners, ignition,…
Furnace service in Ontario »Furnace not working in Ontario? No heat on a cold morning is one of the most common calls we take, and one of the fastest to fix. Our technicians…
No-heat repair in Ontario »Furnace short cycling in Ontario, turning on and off every few minutes, wears out parts fast and leaves the house cold. We find the cause, whether it…
Furnace short cycling repair in Ontario »Heating installation in Ontario for gas furnaces, electric furnaces and heat pumps, sized and installed to manufacturer specifications. When your old…
Heating installation in Ontario »Emergency heating repair in Ontario, available 24 hours a day. A furnace or heat pump that fails on a winter night is not a wait-until-Monday…
Emergency heating repair in Ontario »Heat pump repair in Ontario for systems that will not heat, will not cool, ice over or run nonstop. Heat pumps are the most common new HVAC systems…
Heat pump repair in Ontario »HVAC repair in Ontario for every part of your heating and cooling system: air conditioners, furnaces, heat pumps, air handlers, ductwork and…
Hvac repair in Ontario »HVAC service in Ontario that keeps your heating and cooling running at peak efficiency year-round. Our maintenance visits cover the air conditioner…
Hvac service in Ontario »Looking for an HVAC contractor in Ontario who answers the phone, shows up on time and charges what was quoted? Los Angeles Air Conditioning Heating…
Hvac company in Ontario »Emergency HVAC repair in Ontario, 24 hours a day, 7 days a week. When heating or cooling fails at the worst possible time, our same-day HVAC…
Emergency hvac repair in Ontario »Residential HVAC repair in Ontario for single-family homes, condos, townhomes and apartments. We repair and maintain the air conditioners, furnaces…
Residential hvac repair in Ontario »Commercial HVAC repair and installation in Ontario for offices, restaurants, retail stores, warehouses, medical suites and multi-unit buildings. When…
Commercial hvac in Ontario »Ductless mini split repair and installation in Ontario for garages, additions, ADUs, sunrooms and whole homes without ductwork. We install and…
Ductless mini split service in Ontario »Air duct repair, sealing and cleaning in Ontario. Leaky, crushed or dirty ducts waste up to 30 percent of the heating and cooling you pay for and…
Duct repair in Ontario »Thermostat repair and smart thermostat installation in Ontario. A thermostat that reads wrong, loses its schedule or will not talk to the system can…
Thermostat service in Ontario »Neighbors in Ontario looking for "AC repair near me" call us because we answer, we arrive on time and we fix the problem on the first visit whenever parts allow. We serve every street in Ontario and the nearby towns listed below.
Tell us what the system is doing. Our dispatcher gives you an honest arrival window, often the same day.
The technician tests the system, shows you what failed and explains why in plain language.
You get a written price for the repair before any work begins. No hourly surprises.
We fix it, test the system under load and leave the work area clean.
Called three companies for a no-cool emergency in Ontario. These were the only ones who gave a real arrival time and actually kept it.
Angela D., OntarioTwo other companies told me I needed a whole new system. These guys found a refrigerant leak, repaired it and my 8-year-old unit is cooling like new. Honest people.
Jennifer L., OntarioInstalled a ductless mini split in our garage conversion. Neat work, quiet unit, and they walked us through the remote and app. Very happy.
Patricia H., OntarioOur technicians cover Ontario and every neighboring community. Choose your city for local AC and heating repair:
Yes. We install central air, heat pumps, gas and electric furnaces and ductless mini splits, with free in-home estimates and financing options.
After diagnosis you receive a flat, written price before any work begins. Small repairs such as capacitors, contactors, igniters and flame sensors are inexpensive; we only recommend replacement when repair no longer makes sense.
Yes. Our plan includes a spring AC tune-up, a fall heating tune-up, priority scheduling and repair discounts.
Turn the system off at the thermostat, check and replace the air filter, and make sure the outdoor unit is clear of debris. If the coil is frozen, set the fan to on so it can thaw.
Yes. We repair and maintain rooftop units, split systems and ductless systems for offices, restaurants, retail and light industrial properties.
One call, honest pricing, fast response. Open 24 hours a day.
Call (855) 459-5498