Commercial HVAC Repair & Emergency Service in Southern California and Arizona

What does REE Mechanical’s commercial HVAC emergency service cover?

Emergency service covers unplanned repair on rooftop packaged units up to 100 tons, split systems up to 60 tons, gas heat, heat pumps, unit heaters, air curtains, and exhaust and make-up air equipment. Chillers are outside our scope.

REE Mechanical Inc. has been in HVAC since 1987 and today works only on multi-site commercial portfolios. Our own technicians make the repairs. Your work order is not passed to a subcontracted network, and we work on all makes and models regardless of who installed them.

For a facilities director, an emergency is rarely about one unit. It is a store that cannot hold temperature on a trading day. Our job is to get the right technician onto the right roof with as little back-and-forth as possible.

Who gets a technician moving when a site calls in?

Vanny Weber, our Scheduling and Operations Lead, gets service calls on the board and technicians moving. We are on call 24/7, so a work order can go in at any hour of the day or night.

Vanny has been with REE Mechanical Inc. for three years, and the role is easy to describe: a call comes in, it goes on the board, and a technician is on the way. Meet Vanny Weber.

We also work inside your IVR and work-order systems. Those tools are how your department shows results and keeps quality control, so our field and office staff follow set procedures to check in, check out, and report correctly.

Work-order platforms we work inside include ServiceChannel, Fexa, MaintainX, and OpenWrench.

How soon can a technician reach a priority site?

Priority and VIP accounts get first dispatch, with a technician on site within 4 hours once site documentation and roof access are in place (actual arrival varies with location and conditions).

That window rests on where our people are. Technicians are based across Southern California and Arizona instead of starting every call from one yard. A call in Oxnard or Escondido does not have to start with a drive from a single central yard.

Which repair service matches the work order?

Most unplanned calls fall into one of five services. Naming the closest match on the work order helps us send the right technician.

Service	Typical trigger	What the visit focuses on
Commercial AC repair and service	Lost or reduced cooling	Compressors, condenser fans, refrigerant circuits, airflow
Commercial heating repair and service	No heat, lockouts, heat pumps stuck in defrost	Ignition, gas valves, heat exchangers, defrost controls
Rooftop unit inspection and testing	Repeat work orders, faults that clear before anyone arrives	Observing the unit under load and finding the root cause
Temporary cooling rental and setup	Parts or equipment on back order in hot weather	Keeping the space cool until the permanent fix lands
Unit heater and air curtain repair	Dock, stockroom, and entrance equipment failures	Back-of-house heat, door airflow, exhaust and make-up air

What counts as an HVAC emergency at a commercial site?

Treat a failure as an emergency when it threatens trading, occupant safety, or inventory. If you are unsure, call it in. We would rather hear about a failing unit early than after the store closes.

• No cooling or no heat on an occupied sales floor, especially during a heat advisory or cold snap.
• One of two units down in summer. The surviving unit is now carrying the whole space at full duty.
• Water coming through the ceiling from an overflowing drain pan or a failed curb seal.
• Electrical warning signs such as repeated breaker trips or a burning smell at a unit.
• A suspected gas leak. Clear the area and call the gas utility first, then call us.
• A refrigerant leak that has shut a circuit down or set off a monitored alarm.

Climate raises the stakes. Inland valleys, the high desert, and Arizona’s desert metros run long stretches of triple-digit afternoons, and those same areas drop hard on winter nights when idle heat sections are asked to work.

What should be on file before the first emergency call?

The site address, an on-site contact, the roof access method, and the equipment list belong on file first. Without them, the first hour of an emergency goes to hunting for a hatch key or the right unit.

Priority accounts get a technician on site within 4 hours once site documentation and roof access are in place (actual arrival varies with location and conditions).

1. Site address, trading hours, and an on-site contact who can authorize access.
2. The roof access method, plus any keys, codes, or landlord sign-off it needs.
3. An equipment list by unit, with make, model, tonnage, and roof location.
4. Your work-order and IVR check-in requirements and the approval threshold for repairs.
5. After-hours escalation contacts at your facilities desk.

What happens after the technician finds the fault?

If the repair can be made on the visit, the technician makes it and records it on your work order. If it needs approval or parts, Jessica Bresciani, our Estimating Operations Lead, turns the site findings into a quote.

Jessica has five years in HVAC, and the quote is built from what the technician actually found on that roof. See Jessica Bresciani.

When parts or replacement equipment are on back order and the weather will not wait, we arrange interim cooling for Southern California sites through our relationship with Herc Rentals. And when a unit is near the end of its life, another major repair may not be the sensible spend. Rooftop units are commonly planned on a service life in the mid-teens of years. Our guide on whether to repair or replace a rooftop unit walks through that decision, and HVAC replacement covers the install side.

Why do emergency programs break down across a portfolio?

Portfolio emergency programs usually break down on logistics rather than technical skill: long travel, missing parts, silence toward the facilities desk, and no fallback plan when equipment is on back order.

• Distance. A program run from one central yard spends the cool part of the morning in traffic.
• Diagnosis without parts. Finding the failed motor is only half the visit if nobody can source it.
• No updates. The facilities desk learns the technician never arrived from the store manager.
• No interim plan. A store with no rental option can sit warm for weeks waiting on a compressor.

Three commitments shape how we answer those problems: Minimize Disruption to trading, Eliminate Red Tape between the roof and your desk, and stay Built to Adapt to each site’s access rules and reporting.

Where do we respond, and under which licenses?

We self-perform emergency service in six Southern California counties (Ventura, Los Angeles, Orange, San Bernardino, Riverside, and San Diego) and across all of Arizona: 21 counties in two states, run from our Temecula headquarters.

REE Mechanical Inc. is licensed, bonded and insured. We hold California CSLB C20 licenses #940700 and #526944 and Arizona ROC license #365042. Arizona is our newest market, and we are actively growing there. Our technicians are factory-trained, and every one is EPA certified for refrigerant handling.

Browse every service area, or go straight to Riverside County or Los Angeles County.

How can a portfolio cut its emergency calls?

In our experience, roughly 80% of our service calls could have been avoided with proper maintenance. A scheduled program that catches worn parts before they fail is the surest way to shrink the emergency queue.

Our COO, Gerry Den Ouden, was named ACCA NOW 2024 Service Manager of the Year. Start with preventive maintenance and tune-up programs, then give your store managers a plan for the day a unit quits, using our guide on what to do when an RTU fails during business hours and our article on building an HVAC emergency response playbook.

Place an emergency work order

Call (800) 742-0910 to put a technician on the board. If the problem is real but not critical, reach the service desk and we will schedule around your trading hours.