Compare Local Pros
Cinnamon Energy Systems vs Therma Tech
Santa Clara HVAC Contractors Comparison · Updated March 2026
Your decision hinges on project type: Cinnamon Energy specializes in solar and battery installations, while Therma Tech focuses exclusively on HVAC systems.
| Cinnamon Energy Systems | Therma Tech | |
|---|---|---|
| Rating | ★ 4.8 | ★ 4.9 |
| Years Licensed | 13 years | 18 years |
| License # | 976065 | 913806 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Los Gatos, CA | San Jose, CA |
| Website | www.cinnamon.energy | www.thermatechhvac.com |
Key Differences
What Customers Say
Cinnamon Energy Systems
Customers emphasize Cinnamon Energy's smooth handling of complex solar projects from design through permitting, with particular appreciation for thorough technical explanations and efficient coordination with utilities.
Therma Tech
Customers highlight Therma Tech's diagnostic thoroughness and same-day responsiveness for HVAC emergencies, with consistent praise for technicians who explain issues clearly without pressure-selling unnecessary services.
Key Takeaway: Cinnamon Energy customers focus on project coordination and permitting expertise for multi-phase solar installations, while Therma Tech customers emphasize rapid response times and transparent diagnostic work for heating and cooling problems.
Customer Reviews
Cinnamon Energy Systems
I started thinking about solar last year, but it was not until this year when I became serious. I talked to as many as 6 companies who serve San Jose area, and in the end, I decided to go with Cinnamo...
Cinnamon is a highly rated company and I was overall happy with the work. Sometimes communication was tricky but Consultant Michael Croft helped me navigate the process when clarification and service ...
We are quite happy with our solar power system installed by Cinnamon Energy Systems. We are fortunate enough to have south and west facing roofs and were able to work with them to install a system of...
Therma Tech
Those of you reading my reviews, you know how important quality of service is to me. Any company I come in contact with, I pay close attention to their quality of service, value and even some time aft...
Everyone at Therma Tech was great to work with and professional. They worked with us to get the duct work done as soon as possible to get the heat back on for our tenants.
Very honest and knowledgable. They arrive right on time and are able to root-cause the issue and fix it in no time. Highly recommend them.
Consider Cinnamon Energy Systems if...
- ✓ You're installing solar panels, battery backup systems, or planning whole-home electrification where heat pumps integrate with solar power generation
- ✓ Your project involves complex permitting and utility coordination that solar contractors navigate regularly in Santa Clara County
- ✓ You need electrical panel upgrades or infrastructure work connected to renewable energy installations
- ✓ You're planning a ground-mounted solar array or Tesla Powerwall integration requiring specialized expertise
Consider Therma Tech if...
- ✓ You need traditional HVAC services like furnace repair, air conditioner installation, or ductwork replacement unrelated to solar projects
- ✓ You require responsive service for heating or cooling emergencies, with same-day appointment availability
- ✓ You want ongoing maintenance programs for existing HVAC systems to prevent breakdowns
- ✓ Your project is a standalone heat pump installation focused on heating and cooling efficiency rather than solar integration
Questions to Ask Before Hiring
- → For Cinnamon Energy: If your heat pump project isn't tied to solar installation, ask about their experience with standalone HVAC work and whether they handle routine service calls after installation
- → For Therma Tech: If considering heat pumps as part of electrification, ask about their experience coordinating with solar contractors for integrated systems
- → Ask both companies for references from projects matching your specific scope, since their typical project profiles differ significantly
- → Confirm warranty coverage and ongoing service availability, as solar contractors and HVAC specialists typically structure post-installation support differently
The Bottom Line
Choose based on your actual project scope, not subjective quality differences. If you're installing solar panels, battery backup, or pursuing whole-home electrification, Cinnamon Energy Systems is the clear choice with specialized expertise in permitting, utility coordination, and integrated system design. If you need HVAC services like furnace repair, air conditioner replacement, ductwork work, or standalone heat pump installation with ongoing maintenance support, Therma Tech's 18 years of dedicated HVAC focus makes them the better fit. Both are established, properly insured contractors with strong customer feedback in their respective specialties. The decision is straightforward once you identify whether your project is fundamentally about renewable energy integration or heating and cooling systems.
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Frequently Asked Questions
Therma Tech can certainly install heat pumps as standalone HVAC systems, and they have 18 years of HVAC expertise. However, if you're coordinating with solar panel installation, electrical panel upgrades, and battery backup systems, Cinnamon Energy handles all those components as integrated projects. You'd need to coordinate two separate contractors if using Therma Tech for HVAC in a solar project.
The data doesn't indicate that Cinnamon Energy offers routine HVAC maintenance programs or emergency heating repair services, which are Therma Tech's core strengths. If you need a contractor who can respond to furnace failures or provide annual tune-ups, that's traditionally HVAC specialist territory. Ask Cinnamon Energy directly about their post-installation service model for heat pump systems.
This depends entirely on your broader project context. If the heat pump is part of solar installation and home electrification, Cinnamon Energy's integrated approach likely provides better value through coordinated permitting, electrical work, and system design. For standalone heat pump replacement of an existing HVAC system, Therma Tech's dedicated HVAC focus and maintenance capabilities may serve you better long-term.
Both companies are well-established with over a decade of licensed operation, so neither carries the risks associated with newer contractors. Therma Tech's 18 years in HVAC means deeper experience diagnosing complex heating and cooling issues, while Cinnamon Energy's 13 years in solar means extensive permitting history with local jurisdictions for renewable energy projects. The experience gap matters less than choosing the contractor aligned with your actual project type.
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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 12, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
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