Mesa Emcor

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Claim This BusinessAbout Mesa Emcor
Mesa Energy, operating as EMCOR Services Mesa Energy, holds a perfect 5-star rating from 5 verified homeowner and commercial client reviews in the El Cajon area and across Southern California. Established as a full-service HVAC and building automation contractor, the company maintains California contractor license #611215 spanning classifications B, C-4, C-10, C-20, C-36, C-38, and C-46, with additional licensure in Arizona, Nevada, and Washington. Serving El Cajon, San Diego County, and extending throughout California, Arizona, and Nevada, the contractor operates seven days weekly from 8 AM to 8 PM, providing accessible scheduling for both residential and commercial clients.
What distinguishes Mesa Energy from typical regional HVAC contractors is their vertical integration in energy solutions. The company designs and constructs large-scale solar systems, including a recent 6.8-megawatt installation for Morongo Casino Resort and Spa that enhances energy reliability and sustainability for the client. Their expertise spans building automation systems, industrial chiller services, refrigeration, boiler systems, and vane axial fan services typically found only in manufacturing or large commercial facilities. For residential clients, they offer indoor air quality solutions including preventive maintenance programs tailored to Southern California's climate demands.
Customer feedback consistently highlights professionalism, fair pricing, and extensive industry knowledge. Reviewer Billy Jamison noted the company'sgreat customer service and years of accumulated experience, emphasizing both fair prices and professional conduct. While no specific technician names appear in reviews, the feedback underscores a commitment to transparent_estimates and knowledgeable service delivery, a meaningful differentiator when homeowners compare options for complex HVAC repairs or system replacements.
What Customers Say
All five reviews award perfect 5-star ratings, with recurring themes of great customer service, fair pricing, and professionalism. Reviewer Billy Jamison specifically cites years of knowledge and experience as key positives, noting both excellent service and competitive estimates.
Working Hours
| Sunday | 8 AM–8 PM |
| Monday | 8 AM–8 PM |
| Tuesday | 8 AM–8 PM |
| Wednesday | 8 AM–8 PM |
| ThursdayToday | 8 AM–8 PM |
| Friday | 8 AM–8 PM |
| Saturday | 8 AM–8 PM |
Services
HVAC Installation & Replacement
Complete heating and cooling system installations for residential and commercial properties using certified technicians.
HVAC Repair & Maintenance
Diagnostic services, tune-ups, and repair for all major HVAC systems with preventive maintenance plans.
Indoor Air Quality Solutions
Assessment and installation of air purification, filtration, and ventilation upgrades for healthier home environments.
Solar Energy Systems
Design and construction of commercial and residential solar installations, including large-scale projects like the 6.8-megawatt Morongo Casino system.
Building Automation
Smart building management systems integrating HVAC, lighting, and energy monitoring for commercial facilities.
Commercial Refrigeration
Industrial refrigeration system installation, maintenance, and repair for commercial food service and processing clients.
Chiller & Boiler Services
Specialized maintenance and repair for commercial chiller and boiler systems in large facilities.
Preventive Maintenance Programs
Scheduled service agreements designed to extend equipment lifespan and prevent costly breakdowns.