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Business Details
48 Years
experience
Emergency
services
Your Trusted HVAC Partner in San Jose Since 1978
Founded in 1978, we are the Bay Area's premier commercial mechanical contractor with over four decades of experience serving clients. Our company was built on core values of integrity and honesty, which continue to guide our commitment to doing right by customers and employees. Our team of highly trained mechanics and management professionals offers extensive expertise and support capabilities to address HVAC needs ranging from preventive maintenance to emergency response and the design and installation of state-of-the-art systems.

Recognized as one of the area's leading mechanical contractors, we maintain a reputation for excellence through our dedication to innovative solutions and evolving industry standards. Our 24/7 emergency service ensures rapid response times, while our investment in staff training and technological advancements positions us to deliver superior commercial and industrial HVAC solutions tailored to each client's unique requirements.
Services
New Construction Equipment Replacement Service Maintenance Energy Controls Design Engineering
Details
  • Year established: 1978
Highlights and features
  • We offer 40+ years of specialized HVAC experience in commercial and industrial settings
  • Our 24/7 emergency service guarantees response within two hours
  • We maintain a team of factory-trained technicians with specialized expertise
  • Our innovative solutions include LEED-certified design and energy management systems
  • We provide direct access to decision-makers for all client concerns
Services
New Construction
Our specialized construction team handles complete HVAC system installations for new commercial developments. With in-house sheet metal fabrication capabilities and AutoCAD integration, we ensure precise execution from planning through commissioning. Our expertise includes clean rooms, laboratories, and LEED-certified green buildings, with delivery options for Design Build or Plan & Spec projects.
Equipment Replacement
We provide rapid HVAC equipment replacement services with same-day installation in over 90% of cases. Our technicians evaluate existing systems to recommend cost-effective replacements versus repairs, handling all aspects of system modifications and ductwork adjustments to minimize operational disruption during building reconfigurations.
Service Maintenance
Our 24/7 maintenance plans include quarterly scheduled service, detailed problem reporting, and a one-year warranty on parts and labor. Each client receives dedicated technician assignments for personalized service, emergency response within two hours, and access to technical seminars for ongoing system optimization and budget planning.
Energy Controls
We install advanced energy management systems with centralized monitoring and automated tenant billing capabilities. Our solutions integrate lighting and access controls while offering building energy audits to identify cost-reduction strategies, helping clients achieve significant energy savings through optimized HVAC operations.
Design Engineering
Our engineering team specializes in commercial HVAC design projects, focusing on cost efficiency and lifecycle performance. With extensive experience in solving comfort and energy issues in existing buildings, we provide LEED-certified design solutions and rapid project development through advanced AutoCAD capabilities for seamless collaboration with architects.
People
James Sandoval
President
Leading with integrity and vision, James oversees all operations while maintaining our founding commitment to customer satisfaction and ethical business practices.
Mary Kay Mercer
Business Development & Marketing Manager
Driving business growth and client relationships, Mary Kay focuses on expanding our market presence while maintaining our core values of service excellence.
Dave Kester
Construction Manager
Managing complex HVAC installations, Dave ensures quality control and timely execution of new construction projects through his expertise in commercial system design.
Frank Quintanar
Vice President, Service Manager
Overseeing service operations, Frank maintains our 24/7 emergency response capabilities and ensures technical excellence in all maintenance and repair activities.
Tom Olson
Accounting Manager
Managing financial operations, Tom provides the fiscal oversight that supports our commitment to transparent business practices and client cost efficiency.
Questions
What types of HVAC services do you offer?
We provide comprehensive commercial HVAC services including new construction, equipment replacement, preventive maintenance, energy management systems, and LEED-certified design solutions.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency service with a guaranteed two-hour response time for urgent HVAC issues.
What areas do you serve?
We primarily serve the Silicon Valley area, including San Jose and surrounding commercial and industrial sectors.
Do you offer maintenance agreements?
Yes, our maintenance plans include quarterly service, emergency response, technician assignments, and detailed reporting with no long-term commitment required.
Can you handle large-scale HVAC projects?
Our experienced team manages complex projects from design through installation, including clean rooms, laboratories, and commercial building systems.
What makes your company different?
With 40+ years of experience, we combine technical expertise, 24/7 availability, and personalized service while maintaining direct access to decision-makers.
Reviews (5)
Kris C.
Feb 26, 2020 Report
J&J is second to none! They deserve a million stars! They are the best in the bay! Owner Jerry Hurwitz, General Manager, James Sandoval, Frank Quintanar Service Manager and Ed Chan Construction manager and their awesome teams saved our family home after a fire! J&J Air cares about their customers and their safety is priority one. They made sure we will have a clean environment and did magic on our home. James Sandoval made sure my insurance company understood the necessity of replacing all my duct work and specially engineered an amazing unit so we didn't live in a toxic environment! J&J are the HVAC Angels! I recommend them to everyone! No worries and service with heart and a smile! Thank you J&J Air Family, our family is thankful for you everyday!
Alim J.
Aug 23, 2019 Report
Our company had been having some AC issues and we were tired of the misdiagnosis of other companies who came ill prepared and assumed we didn't know to set the thermostat. J&J Air came and within a short time identified the issue that other companies had missed. He then notified us of the issue and scheduled to come the next day with parts to fix the issue. Don't be fouled by low quotes and multiple bills from other companies. Get your AC fixed right the first time. In the end these "lower cost" companies cost you more. Both in numerous bills and wasted time.
Michele G.
Mar 15, 2017 Report
We have had J&J air several times over the past year to our business and our system has NEVER worked completely. They come out and fix a problem and then a week later something else goes wrong. The heat and A/C in our business has only worked periodically and we have spent over $5000 with nothing to show for it. They always say it is a new problem and ALWAYS charge us for coming out. NEVER USING THEM AGAIN
Leonard F.
May 07, 2015 Report
I have had a bad experience with J&J Air. First, they are always late, and not on time. I have to change my work schedule to meet them so they can fix/repair my AC/Heating unit. The owner (Jerry Hurwitz) has over billed me a few times, that is fraud. Plus trying to over sell me on products/materials. I have reported them to the Santa Clara County BBB & State Department Consumer Affairs for there unethical business dealings! Stay away from J&J Air & Owner "Jerry Hurwitz", it will be the BEST thing you can ever do, save yourself the headaches!
Steve P.
Jun 16, 2014 Report
Used this company and felt the repairs were very pricey. I complained several times. When I called for service they cancelled!