# REE Mechanical Inc. > Family-owned since 1987, REE Mechanical provides commercial HVAC service, maintenance and replacement for multi-site portfolios in SoCal and Arizona. REE Mechanical Inc. is a second-generation family-owned commercial HVAC contractor (35+ years, family heritage since 1987) based in Temecula, CA, serving multi-site corporate retailers across 21 counties in 2 states: six Southern California counties (Ventura, Los Angeles, Orange, San Bernardino, Riverside, San Diego) plus all 15 Arizona counties. Priority accounts: on site within 4 hours once site documentation and roof access are in place (actual arrival varies). Phone: 1-800-742-0910. Office hours: Monday - Friday: 7:00 AM - 4:00 PM; 24/7 emergency dispatch for commercial clients. Commercial work only; REE does not take residential work. Full expanded overview: https://www.reehvac.net/llms-full.txt ## Key Pages - [Home](https://www.reehvac.net/): Multi-site commercial HVAC across SoCal and Arizona. - [About](https://www.reehvac.net/about): Founded 1987, second-generation owned. - [Leadership Team](https://www.reehvac.net/team): The people running the company. - [Our Work](https://www.reehvac.net/our-work): Completed installs for national retailers. - [Services](https://www.reehvac.net/services): All four service pillars. - [Service Areas](https://www.reehvac.net/service-areas): Every county and metro we serve. - [Contact / Send Site List](https://www.reehvac.net/contact): Reach the team or send a site list. - [Emergency Service](https://www.reehvac.net/hvac-emergency-service): Store-down response: 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). - [Learning Center](https://www.reehvac.net/learning-center): Interactive tools and guides for facilities teams. - [Careers](https://www.reehvac.net/careers): Always hiring commercial HVAC technicians. ## Service Categories - [HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service) - [HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance) - [HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement) - [HVAC Controls & BMS](https://www.reehvac.net/hvac-controls) ## Services by Category - [Commercial AC Repair & Service — HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service/commercial-ac-repair-service) - [Commercial Heating Repair & Service — HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service/commercial-heating-repair-service) - [Temporary Cooling Rental & Setup — HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service/temporary-cooling-rental-setup) - [Rooftop Unit Inspection & Testing — HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service/rooftop-unit-inspection-testing) - [Unit Heater & Air Curtain Repair & Service — HVAC Repair & Emergency Service](https://www.reehvac.net/hvac-emergency-service/unit-heater-air-curtain-repair-service) - [Preventive Maintenance & Tune-Up — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/preventive-maintenance-tune-up) - [ASHRAE 180 Inspection & Testing — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/ashrae-180-inspection-testing) - [Filter & Belt Maintenance & Tune-Up — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/filter-belt-maintenance-tune-up) - [Coil & Condenser Maintenance & Tune-Up — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/coil-condenser-maintenance-tune-up) - [HVAC Asset Inspection & Testing — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/hvac-asset-inspection-testing) - [HVAC Maintenance & Tune-Up in Ventura County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/ventura-county) - [HVAC Maintenance & Tune-Up in Los Angeles County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/los-angeles-county) - [HVAC Maintenance & Tune-Up in Orange County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/orange-county) - [HVAC Maintenance & Tune-Up in San Bernardino County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/san-bernardino-county) - [HVAC Maintenance & Tune-Up in Riverside County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/riverside-county) - [HVAC Maintenance & Tune-Up in San Diego County — HVAC Maintenance & Inspections](https://www.reehvac.net/hvac-maintenance/san-diego-county) - [Rooftop Unit Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/rooftop-unit-installation-replacement) - [Split System Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/split-system-installation-replacement) - [Make-Up Air & Exhaust Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/make-up-air-exhaust-installation-replacement) - [Ductless Mini-Split Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/ductless-mini-split-installation-replacement) - [Water-Source Heat Pump Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/water-source-heat-pump-installation-replacement) - [Hydronic Fan Coil Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/hydronic-fan-coil-installation-replacement) - [Evaporative Cooler Installation & Replacement — HVAC Installation & Replacement](https://www.reehvac.net/hvac-replacement/evaporative-cooler-installation-replacement) - [Building Management System Installation & Replacement — HVAC Controls & BMS](https://www.reehvac.net/hvac-controls/building-management-system-installation-replacement) - [HVAC Controls Repair & Service — HVAC Controls & BMS](https://www.reehvac.net/hvac-controls/hvac-controls-repair-service) ## Equipment Brands We Service - [Brands we service](https://www.reehvac.net/brands): Manufacturer pages. REE works on all types and brands of commercial equipment; these pages make no dealer or certification claim. - [Trane](https://www.reehvac.net/brands/trane): Trane rooftop units and split systems: what changes at replacement (refrigerant, controller, curb), and how REE maintains them to Standard 180. - [Carrier](https://www.reehvac.net/brands/carrier): Carrier rooftop units, split systems, condensers and dedicated outdoor air units, and why ventilation decides how a Carrier site is replaced. - [Lennox](https://www.reehvac.net/brands/lennox): Lennox rooftop units, split systems, unit heaters and ductless systems, including what to check when a gas rooftop unit is replaced with a heat pump. - [York](https://www.reehvac.net/brands/york): York light commercial, commercial and applied rooftop units: how each category changes the crane, curb and controls questions at replacement. - [Daikin Applied](https://www.reehvac.net/brands/daikin-applied): Daikin Applied rooftop systems, water source heat pumps and fan coils: equipment that reaches inside the building, and how REE works on it zone by zone. ## Counties Served - [Riverside County](https://www.reehvac.net/service-areas/riverside-county) - [Los Angeles County](https://www.reehvac.net/service-areas/los-angeles-county) - [Orange County](https://www.reehvac.net/service-areas/orange-county) - [San Diego County](https://www.reehvac.net/service-areas/san-diego-county) - [San Bernardino County](https://www.reehvac.net/service-areas/san-bernardino-county) - [Ventura County](https://www.reehvac.net/service-areas/ventura-county) - [Arizona](https://www.reehvac.net/service-areas/arizona) - All 15 Arizona counties (statewide coverage) ## Metro Areas - [Temecula](https://www.reehvac.net/service-areas/temecula) - [Los Angeles](https://www.reehvac.net/service-areas/los-angeles) - [San Diego](https://www.reehvac.net/service-areas/san-diego) - [Irvine](https://www.reehvac.net/service-areas/irvine) - [Ontario](https://www.reehvac.net/service-areas/ontario) - [Oxnard](https://www.reehvac.net/service-areas/oxnard) - [Murrieta](https://www.reehvac.net/service-areas/murrieta) - [Riverside](https://www.reehvac.net/service-areas/riverside) - [Corona](https://www.reehvac.net/service-areas/corona) - [Escondido](https://www.reehvac.net/service-areas/escondido) - [Oceanside](https://www.reehvac.net/service-areas/oceanside) - [Rancho Cucamonga](https://www.reehvac.net/service-areas/rancho-cucamonga) - [Maricopa County](https://www.reehvac.net/service-areas/maricopa-county) - [Pima County](https://www.reehvac.net/service-areas/pima-county) - [Pinal County](https://www.reehvac.net/service-areas/pinal-county) - [Yavapai County](https://www.reehvac.net/service-areas/yavapai-county) - [Yuma County](https://www.reehvac.net/service-areas/yuma-county) - [Mohave County](https://www.reehvac.net/service-areas/mohave-county) ## Blog - [Why One Maintenance Template Fails Across Southern California](https://www.reehvac.net/blog/why-one-maintenance-template-fails-across-southern-california) - [Refrigerant Transition: What Facility Managers Need to Track](https://www.reehvac.net/blog/refrigerant-transition-what-facility-managers-need-to-track) - [Temporary Cooling When Equipment Is on Back Order](https://www.reehvac.net/blog/temporary-cooling-when-equipment-is-on-backorder) - [Building an HVAC Emergency Response Playbook for Retail Operations](https://www.reehvac.net/blog/building-an-hvac-emergency-response-playbook) - [How to Budget HVAC Capital Replacement Across a Store Portfolio](https://www.reehvac.net/blog/budget-hvac-capital-replacement-across-a-portfolio) - [Rooftop Unit Lifecycle Planning for Multi-Site Retail](https://www.reehvac.net/blog/rooftop-unit-lifecycle-planning-for-multi-site-retail) - [What ANSI/ASHRAE/ACCA Standard 180 Actually Requires](https://www.reehvac.net/blog/what-ashrae-180-actually-requires) - [The True Cost of Deferred HVAC Maintenance Across a Store Portfolio](https://www.reehvac.net/blog/true-cost-of-deferred-hvac-maintenance) ## Learning Center Guides - [How a Commercial Rooftop Unit Works](https://www.reehvac.net/learning-center/how-a-commercial-rooftop-unit-works) - [RTU Tonnage: How Retail Sales Floors Are Sized](https://www.reehvac.net/learning-center/rtu-tonnage-how-retail-sales-floors-are-sized) - [Economizers on Retail Rooftop Units, Explained](https://www.reehvac.net/learning-center/economizers-on-retail-rooftop-units) - [Packaged vs Split Systems in Commercial Buildings](https://www.reehvac.net/learning-center/packaged-vs-split-systems-in-commercial-buildings) - [Water-Source Heat Pumps: How They Work](https://www.reehvac.net/learning-center/water-source-heat-pumps-how-they-work) - [Hydronic Fan Coils: What Facility Teams Should Know](https://www.reehvac.net/learning-center/hydronic-fan-coils-what-facility-teams-should-know) - [Make-Up Air and Exhaust Balance in Retail Stores](https://www.reehvac.net/learning-center/make-up-air-and-exhaust-balance-in-retail-stores) - [Building Management Systems for Multi-Site Portfolios](https://www.reehvac.net/learning-center/building-management-systems-for-multi-site-portfolios) - [Commercial HVAC Glossary for Facility Managers](https://www.reehvac.net/learning-center/commercial-hvac-glossary-for-facility-managers) - [Repair or Replace a Rooftop Unit: The Decision Factors](https://www.reehvac.net/learning-center/repair-or-replace-a-rooftop-unit) - [Evaporative vs Refrigerated Cooling in Desert Climates](https://www.reehvac.net/learning-center/evaporative-vs-refrigerated-cooling-in-desert-climates) - [Reactive vs Preventive Maintenance: What Each Costs a Store](https://www.reehvac.net/learning-center/reactive-vs-preventive-maintenance-for-stores) - [Quarterly vs Semiannual PM Visits for Retail](https://www.reehvac.net/learning-center/quarterly-vs-semiannual-pm-visits-for-retail) - [Ductless Mini-Splits vs RTU Zoning for Small Spaces](https://www.reehvac.net/learning-center/ductless-mini-splits-vs-rtu-zoning-for-small-spaces) - [Preparing a Store for a PM Visit: Roof Access and Site Docs](https://www.reehvac.net/learning-center/preparing-a-store-for-a-pm-visit) - [Building an HVAC Asset Register for a Store Portfolio](https://www.reehvac.net/learning-center/building-an-hvac-asset-register) - [Peak-Season Readiness Checklist for Southern California and Arizona](https://www.reehvac.net/learning-center/peak-season-readiness-southern-california-arizona) - [What to Do When an RTU Fails During Business Hours](https://www.reehvac.net/learning-center/when-an-rtu-fails-during-business-hours) - [Onboarding a New Store into a Maintenance Program](https://www.reehvac.net/learning-center/onboarding-a-new-store-into-a-maintenance-program) - [Coil Cleaning and Condenser Care Between PM Visits](https://www.reehvac.net/learning-center/coil-cleaning-and-condenser-care-between-pm-visits) ## Who We Serve - [Commercial HVAC for multi-site retail brands in Southern California and Arizona](https://www.reehvac.net/who-we-serve/multi-site-retail) - [Commercial HVAC for multi-location medical and dental practices in Southern California and Arizona](https://www.reehvac.net/who-we-serve/medical-and-dental-practices) - [Commercial HVAC for multi-location veterinary groups in Southern California and Arizona](https://www.reehvac.net/who-we-serve/veterinary-groups) - [Commercial HVAC for property managers and commercial portfolios in Southern California and Arizona](https://www.reehvac.net/who-we-serve/property-management) - [Commercial HVAC for government and municipal facilities in Southern California and Arizona](https://www.reehvac.net/who-we-serve/government-and-municipal) ## Case Studies - [Rooftop unit changeout for an off-price retailer in San Ysidro](https://www.reehvac.net/our-work/off-price-retail-san-ysidro) - [Large rooftop unit replacement for an electronics retailer in Los Angeles](https://www.reehvac.net/our-work/electronics-retail-los-angeles-county) - [Multi-unit rooftop changeout for a home furnishings retailer in Rancho Cucamonga](https://www.reehvac.net/our-work/home-furnishings-retail-rancho-cucamonga) - [Large rooftop unit replacement for a department store in the Coachella Valley](https://www.reehvac.net/our-work/department-store-coachella-valley) - [Rooftop unit replacement for an off-price retailer in Los Angeles](https://www.reehvac.net/our-work/off-price-retail-los-angeles)