Commercial HVAC

Repair Before Replacement

We keep your commercial HVAC equipment running without pushing you into unnecessary replacements. Every call starts with a proper diagnosis: we evaluate the equipment, explain both options plainly, and repair when repair makes sense.

MCR Services is family owned and operated, with more than thirty years of commercial HVAC experience in California and offices in Mammoth Lakes and Bishop.

Who We Serve

Hotels & Resorts

Guest comfort can't wait for business hours. We keep boilers, hydronic loops, cooling towers, chillers and rooftop equipment running through peak season, and respond around the clock when something fails.

Typical work: Hydronic Heating & Boilers, Cooling Towers, Chiller Repair, Energy Management Systems.

Offices

Comfortable, efficient workplaces with controls tuned to your schedule. We service rooftop units and chillers, install mini-splits for server rooms and additions, and tune building automation so equipment runs only as hard as the building needs.

Typical work: Energy Management Systems, Mini-Split Installation, Chiller Repair.

Schools

Reliable heat and ventilation for classrooms and gyms, scheduled around the school calendar. Boiler and hydronic work, controls, geothermal and water source heat pump service, and preventive maintenance between terms.

Typical work: Hydronic Heating & Boilers, Energy Management Systems, Geothermal & Water Source Heat Pumps.

Government

Facilities that have to stay open. Documented maintenance, repair-first recommendations, and emergency response for public buildings across Mono and Inyo counties.

Typical work: Hydronic Heating & Boilers, Cooling Towers, Energy Management Systems.

What We Service

Six commercial disciplines, one team. Each page lists what we inspect, repair and maintain.

• Hydronic Heating & Boilers — Hydronic heating, radiant loop systems, and boiler repair and service.
• Cooling Towers — Inspection, cleaning, maintenance, and repairs to keep systems efficient.
• Chiller Repair — Chiller repair, troubleshooting, and maintenance for reliable performance.
• Energy Management Systems — Building automation and controls to optimize efficiency and performance.
• Mini-Split Installation — Professional installation of commercial mini-split systems.
• Geothermal & Water Source Heat Pumps — Efficient heating and cooling solutions using renewable energy.