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MJR Electric vs Therma
Santa Clara Electrical Contractors Comparison · Updated March 2026
This comparison is fundamentally flawed: MJR Electric is a residential/commercial electrician while Therma is a commercial-only mechanical contractor specializing in HVAC manufacturing.
| MJR Electric | Therma | |
|---|---|---|
| Rating | ★ 4.5 | ★ 4.6 |
| Years Licensed | 43 years | 9 years |
| License # | 439357 | 1027316 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Morgan Hill, CA | San Jose, CA |
| Website | www.mjrelectric.com | www.therma.com |
Key Differences
What Customers Say
Therma
Customers praise Therma's high-quality custom fabrication work, manufacturing precision, and professional approach to commercial mechanical projects.
Key Takeaway: Only Therma has substantial review data, reflecting their commercial client base, while MJR Electric's limited review history is common for residential electrical contractors who may rely more on word-of-mouth referrals.
Customer Reviews
MJR Electric
No reviews available
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 MJR Electric if...
- ✓ You need electrical work at your home or business, including panel upgrades, rewiring, lighting, or electrical repairs
- ✓ You want a contractor with over four decades of experience navigating California electrical codes and residential projects
- ✓ You prefer working with a local Morgan Hill contractor with deep roots in the community
- ✓ Your project requires an electrician, not a mechanical contractor
Consider Therma if...
- ✓ You manage a commercial or industrial facility requiring custom HVAC ductwork or mechanical systems
- ✓ Your project involves specialty fabrication like custom electrical gutters, precision ducting components, or process equipment
- ✓ You need comprehensive mechanical services including plumbing, steam systems, or medical gas installations
- ✓ You're looking for high-volume manufacturing capabilities rather than residential service work
Questions to Ask Before Hiring
- → For MJR Electric: Ask for references from recent electrical projects similar to yours and confirm their availability for residential service calls
- → For Therma: Confirm whether they take on residential projects at all, as their focus appears entirely commercial and industrial
- → Ask both contractors to clarify exactly what services they provide to ensure alignment with your actual project needs
The Bottom Line
This comparison doesn't serve homeowners effectively because these contractors work in different trades serving different markets. If you need an electrician for your home or business, MJR Electric is your choice with 43 years of electrical expertise. Therma specializes in commercial HVAC manufacturing and industrial mechanical systems, not residential electrical work. Don't waste time comparing them—identify what trade you actually need and contact the appropriate contractor.
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Frequently Asked Questions
No. Therma is a mechanical contractor specializing in commercial HVAC manufacturing and industrial systems, not electrical work. MJR Electric is the electrician in this comparison and the appropriate choice for residential electrical projects.
The 43 versus 9 years comparison is irrelevant because they work in different trades. MJR's longer history reflects electrical expertise, while Therma's 9 years reflects mechanical and fabrication capabilities. You can't meaningfully compare an electrician to an HVAC manufacturer.
This comparison only makes sense if you're managing a large commercial project requiring both electrical and mechanical contractors as separate specialty trades. For a typical homeowner needing electrical work, only MJR Electric is relevant to your project.
If your renovation includes electrical work, hire MJR Electric. If it somehow requires commercial-grade HVAC duct manufacturing or industrial mechanical systems, contact Therma to see if they take residential projects. Most homeowners would never need Therma's specialized commercial services.
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 13, 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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