Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Contractors in Santa Clara Since 1975
Environmental Systems has been a leader in mechanical contracting since 1975, specializing in HVAC, plumbing, and environmental controls. Our team combines cutting-edge technology with decades of experience to deliver customized solutions for commercial projects of all sizes. We prioritize customer satisfaction through dedicated service, innovative design/build capabilities, and a commitment to staying ahead of industry advancements. With offices in Santa Clara and Sacramento, we serve Northern and Central California with 24/7 emergency support. Our leadership team, including President Chris Enfantino and CFO Gene Enfantino, ensures seamless project management and financial oversight.We maintain rigorous certifications in welding, high-purity piping, and energy management systems. Our technicians provide preventive maintenance, retrofits, and emergency repairs, adhering to the highest safety and quality standards. We partner with leading brands like Delta Controls and Honeywell to offer integrated building solutions. Our expertise spans clean rooms, environmental chambers, and hydronic systems for tech, medical, and industrial clients. With over 600 Silicon Valley installations, we combine local knowledge with nationwide technical excellence.
Services
HVAC Installation
Plumbing Systems
Environmental Controls
Emergency Repairs
Design/Build Projects
Details
- Year established: 1975
Highlights and features
- 45+ years of mechanical contracting expertise
- 24/7 emergency service with rapid response
- Certified technicians for high-purity piping systems
- Integrated design/build and engineering capabilities
- Specialized environmental chamber services for R&D facilities
Associations and certifications
- CCL No. 422478
Services
HVAC Systems
We design and install commercial HVAC systems for Silicon Valley tech companies, medical facilities, and research labs. Our expertise includes clean room engineering, variable frequency drives, and centrifugal chiller service. With over 600 local installations, we ensure optimal temperature control and energy efficiency for mission-critical environments.
Environmental Chambers
Our factory-trained technicians service shock chambers, altitude chambers, and vibration tables for R&D facilities. We provide calibration, programming, and custom builds with 24/7 emergency support. As Silicon Valley's only manufacturer-trained chamber service provider, we maintain precise testing conditions for product development.
Process Piping
Specializing in high-purity piping systems for biotech and semiconductor manufacturing. Services include orbital welding, hydronic piping, and PVDF installation. Our certified welders meet strict industry standards for sanitation and system integrity in critical process environments.
Controls Integration
We implement Delta Controls and Honeywell systems for integrated HVAC, lighting, and security management. Our BACnet-compliant solutions provide energy monitoring dashboards and virtual datapoint analysis. This optimizes building efficiency while maintaining compatibility with existing infrastructure.
Emergency Service
Available 24 hours a day for HVAC failures, plumbing emergencies, and chamber malfunctions. Our rapid response team provides parts, labor, and materials with same-day service across Northern California. Preventive maintenance contracts ensure minimized downtime for critical operations.
People
Chris Enfantino
President and CEO
Chris oversees all operations, integrating corporate and construction management. With 45+ years in mechanical contracting, he leads project execution while maintaining ESI's technical leadership in HVAC innovation.
Gene Enfantino
Co-owner and CFO
Gene manages corporate finances and treasury functions. His financial expertise complements ESI's growth strategy, ensuring fiscal stability while supporting expansion of design/build capabilities.
Questions
What HVAC services do you offer for commercial buildings?
We provide complete HVAC solutions including system design, installation, preventive maintenance, and emergency repairs for commercial, industrial, and R&D facilities.
Do you handle emergency service calls after hours?
Yes, our 24/7 emergency service responds to HVAC, plumbing, and environmental chamber issues with full parts and labor support.
What areas do you serve?
We primarily serve Northern and Central California, including Silicon Valley, Sacramento, and surrounding regions.
Can you work on environmental test chambers?
Yes, we specialize in environmental chamber service with manufacturer-trained technicians for calibration, repairs, and custom builds.
What certifications do your technicians hold?
Our team maintains certifications in orbital welding, high-purity piping, and BACnet controls, along with ongoing factory training programs.
Do you offer design/build contracting?
Yes, we provide design/build services that combine engineering expertise with construction management for customized mechanical solutions.
