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CA Electrical Group 24/7 vs Therma
Santa Clara Electrical Contractors Comparison · Updated March 2026
CA Electrical Group specializes in residential electrical work while Therma focuses exclusively on commercial and industrial mechanical systems.
| CA Electrical Group 24/7 | Therma | |
|---|---|---|
| Rating | ★ 4.8 | ★ 4.6 |
| Years Licensed | 8 years | 9 years |
| License # | 1035160 | 1027316 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Jose, CA | San Jose, CA |
| Website | www.caelectricalgroup.com | www.therma.com |
Key Differences
What Customers Say
CA Electrical Group 24/7
Customers consistently praise CA Electrical Group's responsiveness with same-day scheduling, educational approach to explaining electrical systems, and thorough coordination of residential permits and inspections.
Therma
Customers emphasize Therma's high-quality custom fabrication capabilities, manufacturing precision for industrial components, and professional service for commercial mechanical projects.
Key Takeaway: CA Electrical Group's feedback centers on homeowner-friendly communication and residential service delivery, while Therma's reviews focus entirely on commercial manufacturing quality and industrial project capabilities.
Customer Reviews
CA Electrical Group 24/7
We had Jacobs come to our home for a free inspection of an electrical problem we were having. He was extremely knowledgeable and had great customer service skills. After the inspection I had now doubt...
I live in Texas and my elderly parents who are 94 years old had an electrical emergency at their home in the California Bay Area that required a call to the local FD. CA Electrical Group was recommend...
CA Electrical went out of their way to accommodate an Appointment within the same day on a Friday of all days! Not only did they get me one but then they even told me if they could be there even soone...
Therma
Did Stanford blood donation here today.
Can't say enough about this company this group of guys the work that they do and the high technology that they are getting involved in. There is a manager Paul there, great guy hard worker. The compan...
Top notch mechanical contractor. Very professional.
Consider CA Electrical Group 24/7 if...
- ✓ You need residential electrical work of any kind—panel upgrades, rewiring, EV charger installation, outlet work, or circuit troubleshooting
- ✓ You value quick response times and need same-day or next-day service availability
- ✓ You want a contractor who will explain electrical concepts clearly and provide honest assessments of what work is actually necessary
- ✓ You need someone to handle residential permit coordination and utility company interactions on your behalf
Consider Therma if...
- ✓ You are a commercial property owner or facility manager needing HVAC ductwork or mechanical systems
- ✓ You require custom metal fabrication for industrial equipment or specialty ducting components
- ✓ Your project involves commercial plumbing, medical gas systems, or process equipment installation
- ✓ You need high-volume manufacturing capabilities for mechanical components rather than residential service work
Questions to Ask Before Hiring
- → For CA Electrical Group: Ask for references from projects similar to yours and confirm their availability timeline for your specific work
- → For Therma: Confirm whether they perform any residential electrical work at all, as their business model focuses on commercial mechanical contracting
- → Ask CA Electrical Group about their permit process timeline and what utility coordination will be required for your specific project
The Bottom Line
This is not a meaningful comparison for homeowners needing electrical work. CA Electrical Group is a residential electrical contractor with the specific expertise, availability, and customer service approach suited to home projects. Therma is a commercial mechanical contractor that manufactures ductwork and serves industrial clients—they do not perform residential electrical services. If you need electrical work at your home, CA Electrical Group is the appropriate contractor from these two options.
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Frequently Asked Questions
No. Therma is a commercial mechanical contractor specializing in HVAC manufacturing and industrial systems, not residential electrical work. They do not perform the electrical services homeowners typically need.
Not in this case, because the companies work in entirely different trades. The meaningful comparison is not their experience levels but whether they perform the type of work you actually need.
CA Electrical Group is the only appropriate choice for residential electrical work. They specialize in these exact projects with established processes for residential permits and homeowner communication.
Both are licensed San Jose contractors with similar insurance and bonding, but they serve completely different markets. If you're searching for electrical work, CA Electrical Group is the relevant contractor from this comparison.
Looking for the Best?
See our ranked list of top electrical contractors in Santa Clara.
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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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