If your business's AC is down in Temple City, we prioritize getting it back online fast. We service rooftop units (RTUs), split systems, and commercial mini splits from all major brands. Our technicians carry common parts on the truck, so most repairs are same-day. We provide a written estimate before any work starts, and we're available 24/7 for emergencies.
Commercial HVAC Repair & Service in Temple City
LC Heating & Air provides commercial HVAC in Temple City — including commercial HVAC repair, commercial air conditioning, rooftop unit repair, commercial HVAC maintenance. Whether you need same-day service, a written estimate, or help deciding between repair and replacement, our licensed technicians handle every make and model.
We repair and service all major HVAC brands in Temple City, including Carrier, Trane, Lennox, York, and Goodman, and older or discontinued units. No matter the manufacturer, we diagnose the problem accurately and give you an upfront price before any work begins.
A failed air conditioner in a commercial space is a business problem, not just a comfort problem. Customer-facing businesses — retail, restaurants, medical offices — cannot operate without functional cooling during a Los Angeles summer. LC Heating & Air prioritizes commercial AC repair calls and targets rapid response throughout Temple City and the San Gabriel Valley to minimize the time your business operates without cooling.
We diagnose and repair commercial split systems, packaged rooftop units (RTUs) in the 2–20 ton range, commercial mini split multi-zone systems, and commercial heat pump systems. Our technicians carry common commercial AC repair parts for all major brands — commercial capacitors, contactors, control boards, refrigerant, and common RTU components — allowing us to complete most commercial repairs in a single visit.
Emergency calls are answered within 30 minutes — call (323) 970-3113 for dispatch.
Local HVAC considerations
Temple City, San Gabriel Valley
RTU high-pressure lockout from dirty condenser coils
Strip malls, retail plazas, single-story professional offices
95–100°F days, long summer runtimes, dust and smog
Flat roofs, ground pads, attics; gated properties
We also serve Rosemead, San Gabriel Country Club, Arcadia, San Gabriel, El Monte, San Marino
Why Temple City’s Heat and Dust Stress Commercial AC Systems
Temple City sits in the San Gabriel Valley, where summer temperatures regularly hit 95–100 degrees. That kind of heat means your commercial AC system runs long, hard hours every day from June through September. The biggest problem we see locally is high-pressure lockout on rooftop units caused by dirty condenser coils. Rooftop coils are exposed to everything: dust, smog, bird droppings, and plant debris. When the coil surface gets coated, the system can't reject heat, head pressure spikes, and the compressor trips off on safety. A thorough coil cleaning is usually the fix, but if the system has been locking out repeatedly, there may be secondary damage.
The other common pattern in Temple City is low refrigerant from small connection leaks. The constant expansion and contraction from those hot days and cooler nights can loosen flare fittings and braze joints on commercial line sets. We also see more strain on electrical components — contactors and capacitors — from the extended runtime. If your system is short-cycling or running non-stop without keeping up, call us before it turns into a compressor failure.
Temple City’s Commercial Buildings: Single-Family Offices, Retail Plazas, and Strip Malls
Temple City’s commercial properties are mostly single-story retail plazas, strip malls, and small professional offices. Many of these buildings use RTUs on flat roofs or small split systems with condensers on slabs behind the building. A lot of the older buildings have original ductwork and equipment that's been patched together over the years. We see everything from 5-ton packages to multi-zone splits serving separate tenant spaces.
Attic access is common in the older storefronts, and we often find undersized ducts or restricted airflow from years of tenant improvements. The newer remodels typically use ductless mini splits for individual zones, which are less invasive and easier to zone. Whatever the setup, we account for the building's age and existing conditions in our diagnostic and repair plan.
Our Commercial AC Diagnostic Process: What We Check First
When we arrive for a commercial AC call in Temple City, we start with the thermostat and control system to confirm the call for cooling and any fault codes stored. Then we move to the equipment — whether it's an RTU on the roof or a split system. We check the condenser coil condition, the compressor amp draw, and the refrigerant pressures. A common finding is a failed run capacitor or a contactor that's welded shut, which we can usually replace on the spot from our stock.
If the system has locked out on safety, we find out why before resetting it. We look for dirty coils, low refrigerant, failed fan motors, and blocked airflow. For mini split systems, we use the service ports to check pressures and look for communication faults between the indoor and outdoor units. We document everything and present a clear written estimate before any repair work begins. That way you know exactly what's wrong, what it will cost, and what your options are.
When to Repair a Commercial AC vs. Replace It
The honest answer depends on the age of the equipment, the cost of the repair, and the condition of the rest of the system. If the unit is less than 10 years old and the repair is a simple component swap — capacitor, contactor, fan motor — there's no reason to replace it. Even moderate repairs like a compressor replacement on a 8-year-old RTU often make sense if the condenser coil and evaporator are in good shape. But if the system is over 15 years old, has a leaking evaporator coil, or uses R-22 refrigerant (which is being phased out), replacement is usually the better long-term financial decision.
We also look at the ductwork and the building envelope. If the ducts are leaky or undersized, a new high-efficiency unit won't perform well. In that case, we'll recommend addressing the duct issues alongside the equipment upgrade. We won't push you into a replacement if a repair will get you through the next few summers reliably. That's not how we operate.
What Affects the Cost of Commercial AC Repair in Temple City
The cost of a commercial AC repair depends on the type of equipment, the specific failure, and the access conditions. A diagnostic runs $150 to $250. A simple capacitor or contactor replacement is typically $200 to $400. More involved repairs, like a refrigerant leak search and repair with recharge, can run from $400 to $1,000+. Control board replacements are in the $500 to $1,200 range. If the repair requires rooftop access or after-hours service, the labor rate reflects that. We provide a written estimate before any work begins, so there are no surprises.
For replacements, commercial HVAC equipment may qualify for energy efficiency rebates through SoCalGas or SCE (Southern California Edison). The exact amount depends on the equipment type and efficiency rating. We can help verify current rebate programs, but we don't inflate pricing based on rebate availability. If you're considering a replacement, call us for a quote and we'll discuss the numbers transparently.
Scheduling and Access: We Work Around Your Business Hours
We understand that a commercial AC repair can't always happen during regular business hours. That's why we offer same-day service options and after-hours emergency service. Our target response for commercial AC emergencies is 2 to 4 hours during business hours. For after-hours or weekend calls, we aim for 2-hour response. Just call (323) 970-3113 and we'll confirm the after-hours rate upfront.
Access is usually straightforward in Temple City — most commercial units are on flat roofs or ground pads. We do occasionally deal with gated properties or tenants-only access. If that's the case, let us know when you call so we can coordinate access ahead of time. For attics or mezzanine units, we can schedule the visit for a time when the space is clear. We keep disruption to a minimum.
Common Mistakes We See with Commercial AC Repairs in Temple City
The most common mistake we see is adding refrigerant without fixing the leak. A system that's low on refrigerant has a leak somewhere. Topping it off will get you cooling for a while, but the refrigerant will leak out again, and the cost adds up. Worse, running a system low on refrigerant for long periods can damage the compressor. We always find and fix the leak before recharging.
Another mistake is resetting a locked-out RTU without diagnosing the cause. If the high-pressure switch tripped, the coil is dirty, the fan motor is failing, or the system is overcharged. Resetting it without cleaning the coil or checking the fans just means it will lock out again — possibly at the worst possible time. We find the root cause so the repair sticks.
Health and Safety: Why a Broken AC Is More Than an Inconvenience
In a commercial space, a broken air conditioner isn't just uncomfortable — it can affect health and safety. In a medical office or dental practice, inadequate cooling can compromise sensitive equipment and create an uncomfortable environment for patients. In a restaurant, heat buildup in the kitchen can create unsafe working conditions and affect food safety. Even in a retail store, customers won't linger in a hot space, and employees can suffer from heat stress during a long shift.
We also consider indoor air quality. A system that's not cooling properly may still be running, but with a dirty coil or microbial growth inside the air handler. That can blow dust, mold spores, and bacteria into your occupied space. When we do a repair, we check the coil and drain pan condition and flag anything that looks like a health risk. We keep it practical — if the drain pan is slimy, we clean it. If we see mold, we let you know what it will take to fix it.
Should You Repair or Replace Your Commercial AC?
Here's a practical breakdown. If your system is 10 years old or less, the repair cost is under $1,000, and the equipment has been reliable otherwise, repair is the smart move. If your system is 15 years or older, uses R-22 refrigerant, or the repair quote is over half the cost of a new unit, replacement is probably the better long-term financial decision. We'll tell you straight up which direction we'd go based on what we find during the diagnostic.
We don't pressure you into a replacement just because we sell equipment. Our goal is to get your business back to full operation with the least downtime and the best value. If a repair will get you through the next few summers reliably, we'll recommend it. If the writing's on the wall, we'll explain why a new system makes more sense — and we'll help you navigate rebate options if you go that route.
How the visit works
Call (323) 970-3113. We dispatch for commercial AC emergencies as a priority and provide an ETA.
We diagnose the fault across all system components — compressor, controls, refrigerant system, economizer.
We present the repair scope and pricing in a written estimate before any work begins.
We complete the repair, test full system operation, and confirm cooling is restored before leaving.
Cost factors we review before quoting
- • Equipment type (RTU vs split vs mini split)
- • Failure type (capacitor vs compressor vs refrigerant leak)
- • Access conditions (rooftop vs ground level vs attic)
- • Time of service (business hours vs after-hours vs weekend)
- • Parts required (common on-truck vs special order)
- • Refrigerant type (R-22 vs R-410A vs R-32)
Useful next steps
Commercial AC Repair in Temple City at a glance
- • Commercial AC repair by LC Heating & Air in Temple City, CA 91780.
- • Serving Temple City and nearby San Gabriel Valley communities including Rosemead, Arcadia, and San Marino.
- • Licensed and insured: CSLB #1073586, C-20 HVAC.
- • Contact: (323) 970-3113, 509 N Fairfax Ave, Los Angeles, CA 90036.
- • Written estimate provided before any repair work begins.
- • Emergency calls answered within 30 minutes; 2–4 hour target response for commercial AC emergencies.
- • Service includes RTUs, split systems, mini splits, and commercial heat pumps from all major brands.
Our commercial ac repair process in Temple City
Reviewed by Leo, Owner & Lead Technician
This commercial ac repair guide for Temple City is reviewed for practical HVAC accuracy by Leo at LC Heating & Air. LC Heating & Air holds California CSLB C-20 HVAC license #1073586 and provides written estimates before approved work.
What Temple City customers say about commercial ac repair
Verified reviews from homeowners in Temple City and nearby neighborhoods who used our commercial ac repair service.
“AC wasn't cooling to setpoint even though it was running all day. LC found the condenser coils were completely clogged with cottonwood. Cleaned them on the spot and the system cooled my house 12 degrees in an hour.”
“LC replaced our entire HVAC system — new Carrier condenser, furnace, and coil. Leo walked us through every option without pressure. The install team was professional and clean. System runs perfectly and our electricity bill dropped about 30%.”
“Called LC because our CO detector went off. Their technician found a crack in the heat exchanger and immediately shut down the furnace. He explained the safety issue clearly, provided a replacement estimate, and didn't try to scare us — just facts.”
