Since 1987 2 states · 21 counties · all of Arizona
Emergency repair, planned maintenance, or a full unit replacement, dispatched from technicians already positioned near your stores, not from one yard in the middle of the region.
On call 24/7 · priority accounts on site within 4 hours once site documentation and roof access are in place · actual arrival varies with location and conditions
How we keep your sites running
Emergency repair, planned maintenance, full unit replacement, or the controls that keep it all running on schedule. We serve commercial sites across all of Arizona and Southern California.
Commercial rooftop and split-system breakdown response 24/7, with priority accounts on site within 4 hours once site documentation and roof access are in place (actual arrival varies with location and conditions), from technicians based across Southern California and Arizona.
Explore HVAC Repair & Emergency Service →
Planned commercial maintenance programs and Standard 180 inspections, built per site to ANSI/ASHRAE/ACCA Standard 180, because roughly 80% of the service calls we receive were preventable.
Explore HVAC Maintenance & Inspections →
Planned commercial equipment change-outs and retrofits at end of life: rooftop units up to 100 tons, split systems to 60 tons, and cooling towers, to local city and state code.
Explore HVAC Installation & Replacement →
Building automation installation, integration, and service, so equipment runs to schedule across a portfolio instead of to whoever last touched the thermostat.
Explore HVAC Controls & BMS →
Tell us how many sites you run and where they are. We will tell you honestly whether our coverage fits before anyone talks about pricing.
Monday - Friday: 7:00 AM - 4:00 PM · 24/7 emergency dispatch
Choose a lane
The team is the product
Multi-site HVAC comes down to the people who show up. REE's are second-generation family, career technicians, sourdough bakers, soccer coaches, and softball players. They are the crew our customers remember.
Chief Executive Officer & Visionary
Started out as his dad's flashlight-holder and parts-runner, then spent 13 years in the field before running the company.
Chief Operations Officer & Integrator
Went from warehouse attendant to Chief Operations Officer, climbing every rung of that ladder at REE.
Chief Growth Officer
Most likely to be spotted cheering from the bleachers at a kids' baseball game.
Chief Financial Officer
A CPA who quietly advised REE for nearly two decades before officially joining as CFO.
Controller
Bakes her own sourdough and would rather be hiking or camping in the Pacific Northwest.
Training and Safety Director
Married to Raquel for 36 years, and happiest when he's training the next generation of techs.
Field Service Manager
Runs the field on accountability and makes sure every technician has what they need to win.
Installation Director
Got her start coordinating termite pretreatments in pest control before mastering HVAC installs.
Human Resources & Compliance Manager
Off the clock, you'll find her coaching her kiddo's soccer team.
Warehouse Manager
A Temecula local of 55 years and always the first to roll up his sleeves.
Estimating Operations Lead
Trades spreadsheets for softball cleats the moment the workday ends.
PM Operations Lead
Proud animal mom to three dogs and two Sphynx cats.
Scheduling and Operations Lead
Runs the schedule from Texas. Mom to four kids and two dogs named Gus & Biscuit.
Your first call for preventive maintenance, service, PM contracts, or a meeting on how REE can serve your facilities.
Two-minute self-check
Six checks, weighted by how much each one actually moves reliability through a Southern California or Arizona summer. Answer all six for a live 0–100 score and a prioritized fix list. No email required.
Is every site on a scheduled maintenance program (ASHRAE 180 or equivalent)?
A documented task list per site, not run-to-fail
Are filters and belts changed on a schedule, not on failure?
Sized to each site's runtime, not one template
Do you have a current asset register (model, serial, tonnage, install date per unit)?
The input every replacement forecast depends on
Is the average unit age across the portfolio under about 12 years?
Commercial units are commonly planned on a service life in the mid-teens of years
Is there a written emergency escalation path, including a temporary-cooling plan?
Who calls whom, and what happens if parts are on back order
Have condenser coils been cleaned within the last 12 months?
Dirty coils are the quiet capacity killer on hot roofs
Readiness score
0 / 100
Answered 0 of 6. Answer every check for the full picture.
How the score works: each check is weighted by its real effect on season reliability. The weights total exactly 100, so the score is a percentage.
Self-performing crews
REE self-performs every job across Southern California and Arizona with its own technicians, based across Southern California and Arizona. Pick where your store is and see how soon a technician can reach it.
100% self-performing in California and Arizona Our own REE crews across Southern California and all of Arizona: 21 counties in 2 states, no subcontractors.
How soon can REE reach your site?
Priority and VIP accounts get first dispatch. Tick what's set up for your site. A technician is on site within 4 hours once site documentation and roof access are in place on a priority account; actual arrival varies with location and conditions.
REE: nearest available technician
Standing by
On site within 4 hours
You're set up for priority dispatch. A REE technician is on site within 4 hours once site documentation and roof access are in place, and we're on call 24/7; actual arrival varies with location and conditions.
Priority and VIP accounts receive first dispatch: a REE technician on site within 4 hours once site documentation and roof access are in place, and we are on call 24/7. Actual arrival varies with location, traffic, and site conditions. The lane illustrates our in-house crews based across Southern California and Arizona. It is not a timer.
Self-performing crews
In California and Arizona, every REE job is performed by our own technicians, not third-party crews. The person on your roof is a REE employee.
On site within 4 hours
Priority and VIP accounts get first dispatch: a technician on site within 4 hours once site documentation and roof access are in place, and we are on call 24/7. Actual arrival varies with location and conditions.
Inside your systems
IVR and work-order compliance is standard practice, so the reporting trail stays complete.
Proof, not promises
Crane sets, rooftop change-outs, and technicians at work from Southern California to Arizona. These are our crew's own photos, not stock renderings.
Maintained to a published standard
REE Mechanical maintenance is a scope of work built on ANSI/ASHRAE/ACCA Standard 180, not just a visit frequency and a price. It is the version that holds up in an audit.
We inspect and maintain commercial HVAC systems in accordance with:
Standard 180 derives task frequency from equipment type, run hours, and how the building is used, not from whatever the last contractor put on the invoice.
Every unit gets a written scope. When a coil clean is skipped, the record shows it was skipped rather than quietly disappearing.
Readings and deficiencies land against the tagged unit, so a failing compressor has a history behind it when it finally goes.
The reporting exists because someone above you eventually asks why store 214 lost cooling twice in one summer.
If it conditions air, we work on it
REE services every commercial HVAC system except chillers, all makes and models, installed by us or not. Our technicians receive weekly in-house training so a 20-year-old package unit is as familiar as this year's model.
35+ years, one family
REE Mechanical has served Southern California since 1987 and is now led by CEO Jonathan Evancik, who spent thirteen years in the field before moving into the office and later taking ownership of the family business.
“Doing whatever it takes to make a difference in the lives of everyone around us.”
Jonathan Evancik CEO · second generation Hear it from REE
REE Mechanical Client Intro
The initials belong to a person
R.E.E. is Robert Edward Evancik, who started the company in 1987. His son Jonathan spent thirteen years in the field before moving into the office, and later bought the business from him.
1987
The company starts out serving Southern California homes and businesses.
1990s
REE expands into corporate retail portfolios while still serving residential customers.
2007
The family business is formally incorporated, carrying the 1987 heritage forward under the REE Mechanical name.
Over the years
Rather than dispatching from a single yard, technicians are based across Southern California and Arizona.
2020s
REE steps away from residential work to focus entirely on commercial, multi-site clients.
Today
Emergency service, planned maintenance, and replacement from Ventura to San Diego and across all of Arizona.
Written for the person defending the budget
Capital planning, maintenance strategy, and the standards your program is measured against, from the people who do the work, not a content agency.
The cabinet on your roof, section by section (airflow, refrigeration, heat, controls), and what each part tells a facility team about risk.
Age, failure type, repair history, refrigerant, efficiency, and disruption: a consistent way to make the call unit by unit across a portfolio.
Roof hatches, ladders, keys, landlord escorts, and the site file: the checklist that keeps a scheduled visit from turning into a return trip.
Common questions
Straight answers about scope, coverage, and how REE Mechanical Inc. actually works. Family-owned since 1987.
We specialize exclusively in commercial HVAC for multi-site retailers, facilities, and property portfolios, and have worked strictly commercial, multi-site since the 2020s. We do not take residential work. If you manage commercial locations, we would welcome the conversation.
No minimum site count applies, and we are glad to help at any scale. The value compounds with site count: technicians based across Southern California and Arizona, consistent reporting, and asset history matter most across many buildings you rarely visit. Reach out through the contact page and we will walk through whether we are the right fit for your portfolio.
21 counties across 2 states: Ventura, Los Angeles, Orange, San Bernardino, Riverside, and San Diego counties plus all 15 Arizona counties. In Southern California, technicians are based throughout rather than dispatched from one yard. Coverage can extend beyond that footprint for specific projects. See every service area.
Yes. That is standard practice here, not an accommodation. Check-in, check-out, and close-out get fed correctly so the compliance trail your department is measured on stays intact.
Yes, all makes and models. Our technicians receive weekly in-house training so unfamiliar or aging equipment is not a reason for a return trip. See all services.
We keep the store trading with temporary equipment while the permanent unit ships, working with rental partners for temporary spot coolers. See temporary cooling rental and setup.