Building with Purpose.
Powered by Experience.
Paradigm Mechanical Corp. delivers expert HVAC and refrigeration solutions for commercial, industrial, and government facilities across Southern California. We thrive where others hesitate-tackling complex projects with precision, speed, and a commitment to exceeding expectations. When the job demands more, we're the team that gets it done. We've got this!
Where We Excel
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HVAC INSTALL & RETROFIT
Installing a full range of HVAC systems, including split systems, chillers, boilers, VRF systems, and custom air handlers. Our team is experienced in working in occupied facilities, ensuring minimal disruption through careful scheduling and coordination.
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GOVERNMENT HVAC SERVICES
Specializing in HVAC solutions for government facilities, navigating complex regulations, security protocols, and legacy infrastructure. Our services include installation, repair, retrofitting, and energy- efficient upgrades for a wide range of public sector clients.
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REFRIGERATION
Sales, service, leasing, and installation of commercial refrigeration, ventilation, and ice-making systems from all major manufacturers, through our acquisition of San Diego Refrigeration.
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SERVICE & MAINTENANCE
Full-service HVAC maintenance and repair, with 24/7 on-call support and guaranteed response times. Our team delivers reliable, cost-effective solutions, with discounted service rates available for contract customers.
Featured Projects
We take pride in delivering high-performance HVAC, mechanical, and refrigeration solutions across Southern California. From design-build to plan and spec, and projects requiring DBE participation, our team excels under pressure—navigating accelerated schedules and complex environments with expertise and precision.
News
Paradigm Mechanical Corp. and San Diego Refrigeration were proud to once again participate in the FCL Teen Girls Camp, sponsoring Plumbing & Mechanical Day and introducing young women to careers in the skilled trades through hands-on learning and mentorship.
Paradigm Mechanical was proud to once again serve as a Marquee Sponsor for The Auction, one of the largest nonprofit fundraising events in San Diego’s East County, benefiting the Boys & Girls Clubs of East County.
This year’s event celebrated 65 years of impact, supporting programs that provide safe, positive environments for youth across the region.
Paradigm Mechanical Corp of Santee, California, today announced that it has again been named an Accredited Quality Contractor by Associated Builders and Contractors, the fourth year it has earned the prestigious credential for its commitment to corporate responsibility. Only 591 of the nation’s elite merit shop construction contractors earned the credential in 2024.
We’re proud to announce that Paradigm Mechanical Corp. has been awarded the MACC (Multiple Award Construction Contract) — a major win that speaks volumes about who we are, how we work, and where we’re going.
On June 19th, Paradigm Mechanical Corp., in partnership with San Diego Refrigeration, proudly sponsored Plumbing & Mechanical Day at the FCL Teen Girls Camp — formerly known as Camp NAWIC. Organized by Future Construction Leaders, this annual event gives young women the chance to explore careers in the trades through hands-on workshops and mentorship.
We’re proud to celebrate Paradigm Mechanical President Melinda Dicharry for once again being recognized by the San Diego Business Journal as a 2025 Woman of Influence in Construction.
This annual honor highlights women shaping the future of the industry through their leadership and innovation.
We are proud to share that Paradigm Mechanical has received the Diamond Award from the Associated Builders and Contractors’ (ABC) STEP Safety Management System—the highest level of recognition for safety performance in the construction industry.
Paradigm Mechanical Corp. is proud to announce its recent contract award for the City of El Cajon.
PMC is to provide professional design-build services for the installation of modern heating, ventilation, and air conditioning (HVAC) systems in various City-owned gymnasiums, which may also serve as evacuation sites during emergencies.
Melinda Dicharry was featured in a ScalesUp article about the Paradigm Mechanical Bragging Rights Program. To improve project execution and accountability, the company—specializing in HVAC, refrigeration and plumbing—has instituted its own Bragging Rights program, which awards teams bonuses for high-performing projects.
This quarter’s all-hands meeting brought the team members from Paradigm Mechanical Corp. and San Diego Refrigeration together as one. The energy was high and really set the tone for the upcoming year.
Paradigm Mechanical Corp. of Santee, CA, today announced that it has again been named an Accredited Quality Contractor by Associated Builders and Contractors. Paradigm has earned the prestigious credential for its commitment to corporate responsibility. Only 525 of the nation’s elite merit shop construction contractors earned the credential in 2023.
PMC attended a three-day HVAC service business training recently conducted by Carrier at its Palm Beach Gardens headquarters. The program, hosted at the Center for Intelligent Buildings, emphasized service division management and growth strategies. Carrier's experts shared industry insights and innovative approaches, underscoring their commitment to empowering professionals in the evolving HVAC market.
Paradigm Mechanical Corp. has acquired San Diego Refrigeration to expand its service capabilities and market presence. With 35+ years of experience, San Diego Refrigeration brings strong expertise in HVAC and refrigeration. The merger enhances operational efficiency, service offerings, and customer support, while ensuring a smooth transition and continued high-quality service.
This summer, the dedicated team at Paradigm Mechanical Corp. proudly volunteered at the FCL Camp Teen Girls (formerly Camp NAWIC). This empowering weeklong camp introduces teenage girls to exciting careers in construction. We had the privilege of educating 60 first-time campers about the rewarding opportunities in plumbing and HVAC, inspiring them to explore these fields.
At our quarterly PMC All-Hands Meeting, we reviewed company goals and strengthened team dynamics with a fun marshmallow tower challenge. The activity boosted our planning, communication, and collaboration skills—key to our project success and aligned with our mission to excel together toward quarterly and annual objectives.
The San Diego Business Journal recognized the 2024 Women of Influence to celebrate female trailblazers in construction by highlighting their careers and accomplishments. We are so proud to see our CEO, Melinda Dicharry acknowledged.
Paradigm Mechanical was proud to be the Marquee Sponsor for the Boys & Girls Clubs of East County 2024 Auction.
ABC’s Top Performers lists recognize ABC member contractors’ achievements in safety, quality, diversity and project excellence ranked by work hours, with special designations identified.
Congratulations to the PMC team for completing the AGC Project Management Development Program
Paradigm Mechanical Corp. has again been named an Accredited Quality Contractor by Associated Builders and Contractors for its commitment to corporate responsibility. ABC is celebrating the 30th anniversary of the Accredited Quality Contractors program in 2023, and only 547 of the nation’s elite merit shop construction contractors most recently earned the credential.
Paradigm Mechanical Corp. once again earned the STEP Platinum Award in the Associated Builder and Contractor (ABC)’s STEP Safety Management System, which provides contractors and suppliers a framework for measuring safety data and benchmarking with peers in the industry.