Compare Local Pros
Cupertino Electric vs Supreme Air Systems
Santa Clara Solar Contractors Comparison · Updated March 2026
You're comparing an electrical contractor with an HVAC specialist, so your choice depends entirely on whether you need electrical work or heating and cooling services.
| Cupertino Electric | Supreme Air Systems | |
|---|---|---|
| Rating | ★ 4.4 | ★ 4.9 |
| Years Licensed | 68 years | 28 years |
| License # | 174637 | 740667 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Jose, CA | Campbell, CA |
| Website | www.cei.com | www.supremeair.net |
Key Differences
What Customers Say
Cupertino Electric
Customers highlight professional workmanship and helpful front desk service, though some experienced communication gaps including unreturned calls and coordination issues on certain projects.
Supreme Air Systems
Customers emphasize long-term relationships spanning 10 to 20 years, with consistent praise for on-time arrivals, thorough system inspections, and patient explanations across different technicians.
Key Takeaway: Supreme Air Systems demonstrates stronger patterns of customer retention and communication consistency through their proactive maintenance scheduling model, while Cupertino Electric receives more mixed feedback about responsiveness despite acknowledged technical professionalism.
Customer Reviews
Cupertino Electric
I loved the customer service they gave me. Very very professional I must say. Their work is awsome , looks good and clean.
Always a great experience
Top of the "class" indeed. #MindsOfTheFuture #ClaraYvetteDValdez
Supreme Air Systems
I have been dealing with Supreme Air Systems for several years. As a follow-up to my last review, Raul did a thorough cleaning and servicing out HVAC system. He was polite, efficient and did an amaz...
Supreme Air installed a new HVAC system at my condo. Alan was responsive and made sure everything was done right, and everyone was friendly and easy to work with, from the administrative team to Humbe...
Excellent service. Technician came at the time requested, changed the filter, replaced the batteries in the thermostat and cleaned up after himself. Bravo Supreme! MEWIST owner Skin Deep Beauty & Beyo...
Consider Cupertino Electric if...
- ✓ You need electrical work such as panel upgrades, circuit installations, rewiring, or electrical system troubleshooting
- ✓ Your property has older electrical systems where Cupertino's 68 years of experience with legacy wiring and code evolution provides meaningful advantage in diagnosing hidden issues
- ✓ You're comfortable being proactive about communication and following up to ensure coordination, given some customers report unreturned calls
Consider Supreme Air Systems if...
- ✓ You need HVAC services including furnace repair, air conditioner maintenance, heat pump installation, or vent system cleaning
- ✓ You value ongoing maintenance relationships with semi-annual tune-ups rather than one-time service calls—Supreme's model centers on scheduled preventive service
- ✓ Consistent technician quality and thorough system explanations matter to you, as reviews emphasize patient walk-throughs of maintenance findings across different team members
- ✓ You want a contractor with documented patterns of decade-long customer retention, suggesting reliable service delivery over time
Questions to Ask Before Hiring
- → For Cupertino Electric: Ask how they handle residential project communication and who your primary contact will be throughout the job, given some customers experienced coordination challenges
- → For Supreme Air Systems: Ask about their maintenance program structure and costs if you're interested in ongoing service rather than one-time repairs
- → Ask each company for references from projects matching your specific scope—residential service calls versus commercial work, or one-time repairs versus maintenance contracts
The Bottom Line
Your decision is straightforward: hire Cupertino Electric for electrical projects and Supreme Air Systems for heating, cooling, and ventilation work. Both are veteran contractors with proper insurance and bonding. If your specific need is HVAC-related, Supreme's maintenance-focused approach and consistent feedback about decade-long relationships suggest reliable service delivery, though you should clarify their model if you only need a one-time repair. If you need electrical work, Cupertino's 68 years provides deep expertise for complex troubleshooting, but confirm communication expectations upfront given some customers experienced coordination gaps. This isn't about one company being better—it's about matching the right trade specialist to your actual project.
Get Up to 3 Free Quotes
Compare prices from licensed, verified contractors
Frequently Asked Questions
Correct, you're comparing an electrician to an HVAC specialist. Your decision should be based on which trade you need. If you have both electrical and HVAC needs, you'll need to hire both companies or find contractors who specifically advertise both trades under their license.
Both are veteran-tier contractors with multi-decade experience in their respective trades. Cupertino's additional 40 years reflects exceptional continuity and generational knowledge transfer in electrical work, but Supreme's 28 years is more than sufficient for mastering HVAC systems and code requirements. The experience difference matters less than choosing the right trade specialty.
Yes, their project types include installations and repairs beyond maintenance. However, their business model clearly emphasizes ongoing service relationships. If you only need a single repair, ask directly about their service approach for non-maintenance customers to understand response times and pricing structure compared to maintenance program clients.
Some customers reported unreturned calls and coordination challenges, though others praised professional service and helpful front desk interactions. Given their scale and commercial work focus, residential customers should clarify communication protocols upfront—ask who your point of contact will be and how quickly they typically respond to questions during projects.
Looking for the Best?
See our ranked list of top solar contractors in Santa Clara.
Other Santa Clara Solar Contractors Comparisons
How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 09, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
Get in Touch
Have questions or feedback? We'd love to hear from you.