Rooftop Package Units • Split Systems • VRF • Mini-Splits — Same-Day Service from a Licensed Family-Owned Company Since 2008
Commercial HVAC Repair & Air Conditioning Service in Southern California
When commercial AC fails during operating hours, it isn’t an inconvenience — it’s revenue walking out the door. Customers leave restaurants. Employees can’t work productively. Inventory in temperature-sensitive storage is at risk. Comfort Time has been keeping commercial AC running in this region since 2008. Phone answered 24/7. Same-day response is the standard for commercial emergencies — not the exception.
Full Transparency
From the first call to the final invoice, we keep everything upfront and documented so there are no hidden surprises.
Flexible Financing Options
Big repairs and replacements don’t need to break your budget. We offer flexible financing to fit your needs.
Respect for Your Time
We give you a real appointment window, call before we arrive, and show up when we say we will — no wasted hours waiting around.
Backed by Warranty
Every repair and installation is covered by parts and labor warranties, giving you long-term confidence in our work.
$99 Commercial HVAC Service Call
A trained technician on-site, full system diagnostic, and a written flat-rate quote for the repair — for $99. The diagnostic comes off the bill when you approve the work. No upsell games, no parts-and-labor surprises after the fact, no charges added on the invoice that weren’t on the quote.
Commercial AC Services We Offer
- Rooftop Package Units — Carrier, Trane, Lennox, York, Goodman, and more. Single-stage and multi-stage. 3 ton through 25+ ton.
- Split Systems — Above-ceiling air handlers, indoor closet units, exterior condensers. Standard residential-style systems scaled for commercial use.
- VRF (Variable Refrigerant Flow) — Mitsubishi, Daikin, LG. Multi-zone heat recovery and heat pump configurations.
- Mini-Splits & Ductless — Single-zone and multi-zone, including newer high-efficiency inverter systems.
- Heat Pumps — Air-source and water-source for chiller-loop and cooling tower setups in larger buildings.
- Commercial Heating — Gas-fired furnaces, electric heat strips, hydronic systems.
- Refrigerant Service — Leak detection, repair, and recharge for R-410A, R-22 retrofit, R-32, R-454B.
- Controls & Thermostats — Honeywell, Ecobee, Carrier ComfortLink, smart building controls calibration.
How Commercial Service Calls Work
1. 24/7 Phone Answer — A real person, not an answering service routing to voicemail.
2. Same-Day Dispatch — Stocked trucks with commercial inventory — refrigerant, contactors, capacitors, motors, control boards, and the larger parts that residential service trucks don’t carry.
3. On-Site Diagnosis — We test the system, identify the problem, and walk you through what we found in plain language.
4. Flat-Rate Quote in Writing — You approve the price before any work begins. The number on the quote is the number on the invoice.
5. Repair Performed — Most calls finish on the first visit. Specialty parts ordered next-day if needed.
6. Performance Verification — Refrigerant charge, airflow, control operation, and supply temperatures all verified before we sign off.
Why Property Managers and Business Owners Choose Comfort Time
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- Family-owned and operated since 2008 — same crew on every call
- Licensed California HVAC contractor — verifiable through the CSLB
- Bonded and fully insured — Certificate of Insurance available on request
- Commercial specialization — not a residential company taking commercial calls when convenient
- Account billing available — multi-property portfolios get one point of contact and consolidated invoicing
- No long-term contracts required — preventive maintenance scheduled when you want it, billed as performed
- 1,058+ five-star reviews — from property managers, business owners, and operations teams
- Money-back guarantee in writing — every completed repair
Complete Commercial Air Conditioning Solutions
What We Do, Up Close
Commercial Rooftop Package Units
Rooftop package units run hard in Southern California — heat-soaked from sitting on tar roofs in 100-degree summers, exposed to weather year-round, often poorly maintained because they’re out of sight. We service all major manufacturers. Common calls: failed contactors, blown capacitors, motor failures, condenser coil fouling, low refrigerant from slow leaks, control board failures, and time-clock or thermostat schedule issues. We bring a man-lift when needed; we have the certifications for rooftop work; the trucks carry the parts.
Commercial Split Systems
Split systems with air handlers above ceiling tiles, in mechanical rooms, or in office closets — paired with exterior condensers — are common in professional offices, medical buildings, and light retail. These systems share parts with their residential cousins but the diagnostic scope is different at commercial duty cycles. Coil cleaning, refrigerant management, blower wheel service, and condensate handling are all calls we run regularly on commercial split installations.
Water-Source Heat Pumps and Chiller-Loop Systems
Large buildings and shopping centers often run water-source heat pumps tied to a cooling tower or chiller loop. These systems serve dozens of zones from shared water infrastructure, and when something goes wrong, the diagnostic involves both the individual heat pump and the loop conditions. We service these systems regularly in our larger commercial accounts.
Commercial HVAC Maintenance
Preventive maintenance done right — quarterly or semi-annual inspections, documented findings, manufacturer-spec service intervals — extends equipment life and catches small issues before they become emergencies. We service single-unit operations and multi-property portfolios the same way: properly, with documentation. No locked-in multi-year contracts. Service is billed as performed.
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Comprehensive Warranty
Commitments We Stand Behind
Flat-Rate Pricing in Writing The price you’re given before work starts is the price on the invoice. No hourly creep. No line items added after the fact. No “while we were in there” charges.
Real Appointment Windows We give you an actual window, call before we arrive, and show up when we said we would. Your operations manager doesn’t sit around waiting all day.
Parts and Labor Warranty Every completed repair carries a workmanship warranty on top of the manufacturer’s parts coverage.
Cities We Serve Everyday
Cerritos Commercial HVAC Repair
Downey Commercial HVAC Repair
Hacienda Heights Commercial HVAC Repair
La Habra Commercial HVAC Repair
La Mirada Commercial HVAC Repair
Lakewood Commercial HVAC Repair
Norwalk Commercial HVAC Repair
Pico Rivera Commercial HVAC Repair
Santa Fe Springs Commercial HVAC Repair
Whittier Commercial HVAC Repair