Business Details
48 Years
experience
Emergency
services
Your Trusted HVAC Partner in San Jose
Founded in 1978, J & J Air Conditioning has established itself as the premier commercial mechanical contractor in the Bay Area. Over four decades of operation have allowed us to develop expertise in HVAC systems, combining technical proficiency with a client-focused approach rooted in integrity. Our team of certified professionals delivers comprehensive solutions spanning new construction, equipment replacement, and 24/7 emergency services with a two-hour response guarantee. Through continuous investment in innovative technologies and rigorous staff training programs, we maintain industry leadership while earning recognition as a Top Workplace. Our engineering department specializes in cost-efficient design solutions, including LEED-certified green buildings.With in-house sheet metal fabrication capabilities and a centralized energy management system division, we control quality and timelines across all projects. The company's commitment to transparency is demonstrated through detailed reporting on maintenance issues, budget forecasting assistance, and flexible no-cost maintenance agreements. As a locally-owned business serving Silicon Valley, we prioritize personalized service including direct access to decision-makers. This combination of technical excellence, operational reliability, and community focus has sustained our reputation for excellence through decades of service.
Services
New Construction
Equipment Replacement
Service & Maintenance
Energy & Controls
Design & Engineering
Details
- Year established: 1978
Highlights and features
- 40 years of continuous experience serving Bay Area commercial clients
- 24/7 emergency service with two-hour response guarantee
- In-house engineering and sheet metal fabrication capabilities
- Specialized expertise in LEED-certified building systems
- Direct access to decision-makers for urgent service needs
What people say
Top Workplace recognition
40 years of expertise
2-hour emergency response
Personalized service approach
Detailed maintenance reporting
Services
New Construction
Our construction department specializes in commercial HVAC installations from planning to commissioning. We handle all aspects including permits, design, and coordination with other trades. In-house sheet metal fabrication ensures quality control and schedule reliability. Our team delivers systems for VAV, laboratories, clean rooms, and process exhaust applications using either Design Build or Plan & Spec methods.
Equipment Replacement
We provide comprehensive HVAC replacement solutions for aging systems. Our technicians offer repair cost comparisons before replacements. Over 90% of package unit replacements complete within the same day. We also modify existing ductwork and systems during building reconfigurations. Emergency replacements maintain business continuity with minimal downtime.
Service & Maintenance
24/7 service department with two-hour emergency response. Each building receives dedicated primary and secondary technicians. We provide detailed maintenance reports with itemized pricing. Quarterly scheduled maintenance includes system diagnostics and budget forecasting assistance. Our one-year warranty covers parts and labor for repairs.
Energy & Controls
Building energy management systems with centralized scheduling and monitoring. We integrate lighting and access controls with HVAC systems. Our engineers perform energy audits to identify cost-reduction strategies. Specialized in DDC applications and automated tenant billing systems. Recognized as leading control contractors in the region.
Design & Engineering
Experienced team creates cost-efficient HVAC designs for commercial properties. Specialties include clean rooms, computer environments, and LEED-certified buildings. AutoCAD capabilities enable precise collaboration with architects. We optimize solutions based on construction costs, ownership expenses, and lifecycle analysis.
People
James Sandoval
President
Leading the company since its founding in 1978, James Sandoval maintains direct oversight of operations. With over four decades of HVAC industry experience, he ensures adherence to core values while guiding technological innovation. Connects personally with key clients and emergency service decisions.
Mary Kay Mercer
Business Development & Marketing Manager
Developing strategic partnerships across Silicon Valley, Mary Kay directs marketing initiatives and client relations. She has expanded the company's market presence through targeted outreach while maintaining focus on service excellence as core differentiator.
Dave Kester
Construction Manager
Dave Kester oversees all construction projects, ensuring technical precision and schedule adherence. With expertise in complex commercial installations, he coordinates multi-disciplinary teams through each project phase from initial design to final commissioning.
Frank Quintanar
Vice President, Service Manager
Frank Quintanar leads the 24/7 service division, maintaining rapid response capabilities. He manages technician deployment, warranty programs, and client communication during emergency situations, ensuring minimal business disruption.
Tom Olson
Accounting Manager
Tom Olson manages financial operations including maintenance agreements and budget forecasting services. He ensures transparent pricing structures and streamlined payment processes for commercial clients requiring complex billing arrangements.
Questions
What types of businesses do you serve?
We specialize in commercial and industrial HVAC systems across Silicon Valley, including offices, laboratories, manufacturing facilities, and technology centers requiring specialized climate control.
Do you offer emergency service outside regular hours?
Yes, our 24/7 service department responds to emergencies within two hours, with technicians available at all times to minimize business disruption.
What areas do you service?
We primarily serve the Silicon Valley area, including San Jose, Sunnyvale, Santa Clara, and surrounding communities throughout the Bay Area.
What warranty do repairs carry?
All repair work comes with a one-year warranty covering both parts and labor, providing assurance for our commercial clients.
Do you provide maintenance agreements?
Yes, we offer flexible maintenance plans with quarterly service visits, detailed reporting, and priority emergency response, with no commitment fees.
How do you handle large construction projects?
Our in-house team manages projects from design through completion, including coordination with other trades, permits, and commissioning, with dedicated project managers for each job.
Reviews (5)
Kris C.
Feb 26, 2020
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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
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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
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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
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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
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Used this company and felt the repairs were very pricey. I complained several times. When I called for service they cancelled!
