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Cinnamon Energy Systems vs All Bay Mechanical
Santa Clara HVAC Contractors Comparison · Updated April 2026
This comparison hinges entirely on your project: Cinnamon specializes in solar and battery systems while All Bay focuses on traditional HVAC work.
| Cinnamon Energy Systems | All Bay Mechanical | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 13 years | 22 years ✓ |
| Workers Comp | Yes | Yes |
| Bond Amount | $25,000 | $25,000 |
| Experience Tier | Established | Veteran ✓ |
| Location | Los Gatos, Santa Clara County | Gilroy, Santa Clara County |
| Website | www.cinnamon.energy | www.allbaymechanical.com |
Key Differences
What Customers Say
Cinnamon Energy Systems
Customers highlight Cinnamon's comprehensive communication throughout complex solar projects, from detailed system design through permitting and utility coordination with professional installation crews.
All Bay Mechanical
Customers emphasize All Bay's clean execution and thoroughness, particularly noting technicians who remain on-site to test systems after installation is complete.
Key Takeaway: Cinnamon's feedback centers on managing the complexity of solar permitting and multi-phase projects, while All Bay's reviews focus on the quality and verification of straightforward mechanical installations.
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...
All Bay Mechanical
Had a split system replaced in my condominium. Top notch work. Their installation was clean, efficient, and effective. They stuck around to test everything afterward. Highly recommend them to anyone l...
Consider Cinnamon Energy Systems if...
- ✓ Your project involves solar panel installation, battery backup systems, or Tesla Powerwall integration where Cinnamon's specialized expertise and permitting experience directly applies
- ✓ You're installing heat pump HVAC or ductless mini-split systems as part of a home electrification strategy
- ✓ You need electrical panel upgrades coordinated with solar installation, an area where Cinnamon handles the full integration process
- ✓ You value detailed system design and comprehensive communication through complex permitting and utility coordination processes specific to solar projects
Consider All Bay Mechanical if...
- ✓ Your project is traditional HVAC work like furnace replacement, central AC installation, or split system upgrades where All Bay's mechanical focus applies
- ✓ You prefer working with a veteran contractor who has 22 years of operational history and sustained business presence
- ✓ You're in the Gilroy area where All Bay is based, potentially reducing travel time for service calls
- ✓ You want a contractor known for thorough post-installation testing and verification of mechanical systems
Questions to Ask Before Hiring
- → Ask Cinnamon specifically about their experience with your heat pump type if considering them for HVAC rather than solar, since their primary reputation centers on solar installations
- → Ask All Bay whether they have experience with heat pump systems and modern high-efficiency equipment if you're considering electrification beyond traditional HVAC
- → Confirm with either company how they handle warranty service and what response times look like for your specific location in Santa Clara County
The Bottom Line
Your decision here is straightforward: match the contractor to your actual project type. If you're installing solar panels, battery backup, or Tesla Powerwall, choose Cinnamon Energy Systems—their 13 years of solar specialization, permitting expertise, and system design capability directly serve your needs. If you need traditional HVAC work like furnace or AC replacement, choose All Bay Mechanical for their 22 years of mechanical contracting focus. Both carry proper insurance and bonding, eliminating risk concerns. The only complexity arises with heat pump systems, where Cinnamon handles them as part of electrification projects while All Bay's experience with modern heat pumps is unclear and should be confirmed directly.
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Frequently Asked Questions
Cinnamon does install heat pump HVAC and mini-split systems, which are modern high-efficiency alternatives to traditional heating and cooling. However, their core expertise and most extensive track record is in solar and battery installations. If you need a conventional furnace or standard AC unit replaced, that's outside their described specialty.
All Bay's described experience centers on traditional mechanical HVAC systems, with customer feedback specifically mentioning split system replacements. There's no indication they handle solar installations or battery systems. If they work on heat pumps, you'd need to ask directly about that experience since it's not highlighted in their profile.
All Bay's 22 years versus Cinnamon's 13 years does reflect more sustained business longevity. However, the more important factor is specialization alignment with your project. Both companies demonstrate established operations with proper insurance and licensing. Choose based on which company's actual expertise matches what you need installed.
For a combined solar and HVAC project, Cinnamon Energy Systems can handle both if you're installing heat pump technology as part of an electrification strategy. They coordinate solar installations with electrical panel upgrades and heat pump systems. If you want traditional HVAC alongside solar, you might need separate contractors or should ask Cinnamon directly about coordinating conventional systems with solar work.
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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 April 09, 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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