Compare Local Pros
M Multiwire Electric vs Therma
Santa Clara Electrical Contractors Comparison · Updated March 2026
You're comparing an electrical contractor to a commercial mechanical fabricator—these companies serve completely different needs.
| M Multiwire Electric | Therma | |
|---|---|---|
| Rating | ★ 3.7 | ★ 4.6 |
| Years Licensed | 9 years | 9 years |
| License # | 1027648 | 1027316 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Jose, CA | San Jose, CA |
| Website | — | www.therma.com |
Key Differences
What Customers Say
M Multiwire Electric
Customers appreciate professional installations and the personal care M Multiwire shows during residential electrical projects, though scheduling reliability has been inconsistent.
Therma
Customers consistently praise Therma's high-quality custom fabrication work, manufacturing capabilities, and professional approach to commercial mechanical projects.
Key Takeaway: M Multiwire's feedback centers on residential customer service and home electrical work, while Therma's reviews focus entirely on commercial fabrication quality and industrial technical capabilities—reflecting their completely different markets.
Customer Reviews
M Multiwire Electric
Manual Mendoza replaced my power panel and two sub pedals along with smoke alarms, light fixtures in a very professional manner. I am happy to recommend him for all of this kind of work
Mr. and Mrs. Mendoza of M Multiwire Electric Corp are amongst the best contractors I have chosen in my life. Why do I say this? Quite simply because "they care about their customers". There are man...
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 M Multiwire Electric if...
- ✓ You need residential electrical work like panel upgrades, subpanel installation, smoke alarms, or lighting fixtures—this is M Multiwire's actual service area
- ✓ You value direct owner involvement throughout your project, as the company operates with high owner engagement
- ✓ You're comfortable verifying your homeowner's insurance covers contractor injuries, since M Multiwire doesn't carry workers compensation
- ✓ You can work around potential scheduling inconsistencies, as at least one customer noted appointment reliability concerns
Consider Therma if...
- ✓ You're a commercial or industrial facility manager needing HVAC duct manufacturing or custom metal fabrication—this is Therma's actual business
- ✓ You require specialty ducting components, custom electrical gutters, or precision industrial fabrication with high dimensional accuracy
- ✓ You need a contractor with workers compensation insurance and prefer the liability protection this provides
- ✓ Your project involves medical gas systems, process equipment, or commercial mechanical installations rather than residential electrical work
Questions to Ask Before Hiring
- → Ask M Multiwire Electric to provide proof of liability insurance and confirm your homeowner's policy covers injuries to uninsured contractors on your property
- → Ask M Multiwire about their scheduling practices and how they handle appointment commitments given previous customer concerns
- → Confirm which company actually performs the type of work you need—electrical residential service or commercial mechanical fabrication
The Bottom Line
If you need residential electrical work, M Multiwire Electric is your only option here—Therma doesn't do residential electrical service. However, before hiring M Multiwire, contact your homeowner's insurance to confirm you're covered if an uninsured worker is injured on your property, as they don't carry workers compensation. Also address scheduling expectations upfront given previous customer concerns. If you actually need commercial mechanical fabrication or HVAC duct manufacturing, Therma is the appropriate contractor with full insurance coverage and strong fabrication capabilities.
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Frequently Asked Questions
They shouldn't be directly compared for the same project. M Multiwire handles residential electrical work while Therma does commercial mechanical fabrication. If you need home electrical service, M Multiwire is relevant; if you need industrial HVAC ductwork, Therma is your option.
It's a real liability concern. If an electrician is injured at your home and the company has no workers comp, they could sue you directly, and your homeowner's insurance may have to cover it. Before hiring M Multiwire, call your insurance agent to understand your exposure and verify you have adequate coverage for uninsured contractors.
They're equally experienced in their respective trades, but those trades are completely different. Nine years gives both a solid track record, but M Multiwire's experience is in residential electrical while Therma's is in commercial mechanical fabrication. The relevant question is which trade matches your project need.
No. Therma holds a mechanical contractor license for HVAC and plumbing work, not an electrical contractor license. They legally cannot perform electrical work like panel replacements or wiring. For residential electrical projects, they're not qualified regardless of their commercial mechanical expertise.
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 08, 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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