Fast, Reliable Emergency & Commercial HVAC Across Van Nuys
When your AC dies on a 108°F afternoon in Van Nuys or your commercial rooftop unit fails before a tenant walkthrough, you need someone who shows up with the right parts and knows exactly what they’re walking into. We answer emergency calls across Van Nuys, from the apartment corridors near Victory Boulevard to the ranch homes backing up against the airport fence, and we carry inventory for nine major brands so we’re not making a second trip. Call (855) 467-1888 for emergency HVAC service or to schedule a commercial system inspection.
Why Stonegate Heating & Air California Is Van Nuys’s Preferred Emergency & Commercial HVAC Company
We’ve spent 16 years working in California’s toughest HVAC conditions, and Van Nuys consistently ranks among the most demanding. The San Fernando Valley floor is a heat sink. While Santa Monica stays in the 70s, Van Nuys bakes. That gap matters when you’re sizing equipment and diagnosing failures.
Our 499 verified reviews average 4.7 stars, and Van Nuys customers specifically mention our Emergency & Commercial HVAC team’s ability to solve retrofit problems in one visit. Jason Trent, our owner, holds the title of Field Supervisor and personally reviews commercial jobs and complex residential calls. You’re not getting a rotating cast of subcontractors. You’re getting a technician who has seen your exact failure mode before, supervised by someone with 16 years of field accountability.
We stock parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard at our Sacramento warehouse, which means most Van Nuys repairs don’t wait on shipping. For commercial clients near the Van Nuys Airport industrial corridor or along Sepulveda Boulevard, that parts availability translates to less downtime and fewer tenant complaints.
Our Emergency & Commercial HVAC Services in Van Nuys
24/7 Emergency HVAC
Van Nuys doesn’t cool off at night the way coastal LA does. When your system fails at 9 PM in July, the indoor temperature keeps climbing. We take emergency calls around the clock for compressor failures, refrigerant leaks, complete electrical shutdowns, and blower motor failures. Our techs carry EPA-certified refrigerant and electrical testing equipment on every truck, and they know the specific failure patterns of valley-floor equipment: heat-soaked capacitors, overloaded contactors, and duct systems that have been fighting 150°F attics since the 1970s.
Commercial HVAC
Van Nuys’s commercial base runs from light industrial near the airport to low-rise apartment complexes along Van Nuys Boulevard and Victory Boulevard. We service packaged rooftop units, split systems, and multi-zone setups for property managers and small business owners. Jason Trent supervises commercial installations and major repairs directly, which matters when you’re coordinating around tenant schedules or business hours. We’ve replaced failed compressors on 20-year-old Carrier rooftop units and installed new Lennox systems for renovated retail spaces.
Rooftop Unit Service
Low-rise apartment buildings and small commercial properties throughout Van Nuys rely on rooftop units, and those units take a beating. The valley’s thermal load means condensing coils on RTUs operate at higher pressures for longer hours than equivalent units in milder climates. We find heat-soaked coils and failed fan motors are the most common summer failures. Our inspections include coil cleaning, refrigerant level verification, and amp-draw testing on all motors, catching the problems that turn into 2 AM emergency calls.
Chiller Service
For larger commercial properties in Van Nuys with chilled-water systems, we provide leak detection, refrigerant recovery and recharge, and controls calibration. Chillers are less common in this market than packaged rooftop units, but the properties that have them depend on them absolutely. We maintain the specialized tooling and EPA Section 608 certification required for low-pressure chiller work.
HVAC Inspection
A proper inspection in Van Nuys means looking at ductwork in 150°F attics, not just the condenser pad. We inspect static pressure across the system, verify refrigerant charge against manufacturer specs, and document the condition of electrical connections that degrade faster under continuous load. For commercial clients, we provide written condition reports that satisfy property management requirements and help with capital planning.
Annual Maintenance
Van Nuys systems run longer hours than coastal equivalents, so maintenance intervals matter more. Our tune-ups include coil cleaning, filter replacement, belt tension checks, and full electrical testing. A maintained system in this climate lasts 3-5 years longer than a neglected one, and the efficiency difference shows up immediately on summer utility bills.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Van Nuys
We maintain factory training or equivalent field experience on nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Van Nuys customers, this means no dead ends. We’ve had too many calls from frustrated property managers who were told “we don’t service that brand” by the third company they tried. We stock common control boards, capacitors, contactors, and fan motors for Carrier, Trane, and Lennox systems at our Sacramento facility, and our trucks carry the electrical and refrigerant components that fail most often in high-heat operation. If we need a specialized part, our supplier relationships get it moving fast.
Common Emergency & Commercial HVAC Problems We See in Van Nuys Homes
- Undersized ductwork in retrofitted attics. Original 1970s flex duct loses over half its cooling capacity running through 150°F attics, making even correctly sized condensers seem inadequate. We replace these runs with insulated sheet metal and rebalance airflow.
- Commercial rooftop units with heat-soaked coils. Low-rise apartment buildings along Van Nuys Boulevard see repeat compressor failures on older Trane and Carrier RTUs when condensing coils can’t shed heat effectively during multi-day 100°F stretches.
- Capacitor and contactor failures from continuous cycling. Valley systems run harder and longer than coastal equivalents, accelerating wear on electrical components that handle start-up current. We find these failures peak in August after three months of near-continuous operation.
- Refrigerant leaks at flare connections and Schrader valves. Thermal expansion and contraction from Van Nuys’s wide annual temperature swing, from mid-30s winter nights to 110°F summer afternoons, stresses refrigerant connections that were adequate in milder climates.
Pricing for Emergency & Commercial HVAC in Van Nuys, CA
Van Nuys HVAC work runs toward the higher end of California pricing because of the climate demand and the retrofit complexity in older housing stock. Here’s what we typically see:
| Service | Typical Range in Van Nuys |
|---|---|
| AC Repair | $150–$650 |
| Furnace Repair | $150–$700 |
| AC Installation | $3,500–$7,500 |
| Tune-Up | $80–$200 |
Emergency service calls outside standard hours add a trip charge, but we diagnose the problem and present repair options before any work begins. Commercial rooftop unit repairs and chiller service are priced per job after inspection, since scope varies significantly with equipment age and accessibility. We don’t quote over the phone for jobs we haven’t seen. Call (855) 467-1888 for a free, no-obligation estimate at your Van Nuys property.
We Also Serve Cities Near Van Nuys
Our service radius covers the full San Fernando Valley corridor, including Valley Glen, Sherman Oaks, Encino, and North Hills. The same climate conditions, retrofit challenges, and commercial rooftop inventory apply across these neighborhoods. If you’re managing properties in multiple valley cities, we can coordinate inspections and maintenance on a single schedule.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Emergency & Commercial HVAC in Van Nuys
Your ductwork is likely losing capacity in a 150°F attic. We responded to a 24/7 emergency call on Kittridge Street near the Van Nuys Airport, where a 1960s ranch home’s new Rheem condenser was tripping on high head pressure. Our tech found the original flex duct running through a 150°F attic was causing the system to lose over 50% of its cooling capacity before air reached the registers. We replaced the duct runs with insulated sheet metal and balanced the airflow, solving the problem in one trip. The condenser was correctly sized. The delivery system wasn’t. Call (855) 467-1888 for an inspection if your new system underperforms.
The valley’s thermal load forces your RTU to run at higher head pressures for more hours than equivalent units in milder climates. Condensing coils collect debris and oxidize faster, fan motors work harder, and refrigerant slowly migrates through seals stressed by thermal cycling. Annual inspection and coil cleaning prevents the compressor failures that always seem to happen on the hottest weekend of August. We service Carrier, Trane, and Lennox RTUs throughout the Van Nuys commercial corridor. Call (855) 467-1888 to schedule before peak season.
Oversized openings create significant air exchange loads that standard residential systems aren’t designed to handle. For detached workshops and garage-adjacent spaces common on Van Nuys acreage properties, we typically recommend a dedicated mini-split system sized for the actual load, or a properly zoned extension of your main system with sufficient capacity margin. The key is accurate load calculation, not guesswork. Jason Trent supervises these assessments personally. Call (855) 467-1888 for a free load analysis.
Twice yearly: once before the cooling season in April or May, and once before heating demand in October or November. Van Nuys systems run longer hours than coastal equivalents, so wear accumulates faster. Commercial properties with rooftop units should add a mid-summer coil inspection, especially if the unit sits near traffic corridors where debris loading is higher. Our inspection covers electrical connections, refrigerant charge, static pressure, and duct condition in attic spaces. Call (855) 467-1888 to set up a maintenance schedule.
Yes, and this is one of the most common jobs we do in Van Nuys. We install a central air handler in the attic or a closet, run new ductwork through the attic space, and add a condenser outside. The wall heaters stay in place for winter use or get capped. The critical detail is duct design: we use insulated sheet metal or high-R flex duct rated for 150°F attics, sized correctly for static pressure, not just crammed into whatever space is available. Done right, the system delivers full capacity. Done wrong, you get the “can’t keep up” problem we see constantly in retrofitted valley homes. Call (855) 467-1888 for a retrofit estimate.
Written by Jason Trent, Owner and Field Supervisor at Stonegate Heating & Air California, serving Van Nuys and the San Fernando Valley since 2008.