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Cupertino Plumbing vs Therma
Santa Clara General Contractors Comparison · Updated March 2026
Cupertino Plumbing brings 34 years of residential plumbing expertise while Therma focuses primarily on commercial and industrial mechanical work.
| Cupertino Plumbing | Therma | |
|---|---|---|
| Rating | ★ 4.9 | ★ 4.6 |
| Years Licensed | 34 years | 9 years |
| License # | 624905 | 1027316 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Campbell, CA | San Jose, CA |
| Website | www.cupertinoplumbing.com | www.therma.com |
Key Differences
What Customers Say
Cupertino Plumbing
Customers consistently praise Cupertino for quick scheduling, professional communication, and successfully completing diverse residential plumbing projects from simple repairs to major installations.
Therma
Customers highlight Therma's high-quality custom fabrication work and manufacturing capabilities for commercial mechanical systems and specialty industrial components.
Key Takeaway: Cupertino's feedback centers on residential plumbing services and homeowner relationships while Therma's reviews focus exclusively on commercial mechanical work and industrial fabrication without mentioning residential plumbing.
Customer Reviews
Cupertino Plumbing
Very friendly and knowledgeable. Did a stellar job replacing my kitchen faucet.
Cupertino Plumbing fixed two issues - on two separate visit weeks apart 1) Post the washer cycle, while being drained, the water was coming out of the pipe next to the washer 2) When the dishwasher cy...
Amazing customer service and value! Highly recommend.
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 Cupertino Plumbing if...
- ✓ You need residential plumbing services like water heater replacement, repiping, drain cleaning, fixture repairs, or sewer line work that Cupertino handles regularly
- ✓ You value long-term reliability, as customers report using Cupertino for 20-30 years with consistent satisfaction
- ✓ You need quick response times for plumbing emergencies, with customers noting same-day and next-day scheduling
- ✓ You want a contractor whose 34 years of experience means they've encountered complications in older homes and can diagnose hidden issues
Consider Therma if...
- ✓ You have a commercial or industrial mechanical project requiring custom duct fabrication or specialty metal components
- ✓ Your project involves complex HVAC systems, medical gas installations, or process equipment for commercial facilities
- ✓ You need high-volume manufacturing capabilities for custom electrical gutters or specialty ducting rather than residential plumbing
- ✓ You're operating an industrial facility in Silicon Valley requiring mechanical contractor expertise beyond typical plumbing services
Questions to Ask Before Hiring
- → Ask Therma directly if they perform residential plumbing work and how many residential projects they complete annually compared to commercial work
- → Ask Cupertino for references from projects similar to yours, particularly if your home is older or the project involves whole-house systems
- → Ask both companies about their typical response time for scheduling and whether they handle emergency calls if you have urgent plumbing needs
The Bottom Line
For residential plumbing projects, Cupertino Plumbing is the clear choice with 34 years of directly relevant experience, demonstrated expertise in home plumbing systems from simple repairs to whole-house repiping, and consistent customer feedback praising responsive service and homeowner communication. Therma excels at commercial mechanical work and custom fabrication but doesn't demonstrate the residential plumbing focus you need. Unless your project involves commercial HVAC manufacturing or industrial mechanical systems, Cupertino's veteran residential plumbing expertise makes this decision straightforward. Contact Cupertino for your home plumbing needs.
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Frequently Asked Questions
Therma's description and customer feedback focus entirely on commercial mechanical contracting and custom fabrication work with no mention of residential plumbing services. If you need home plumbing work, ask Therma directly about their residential capabilities, but their documented expertise lies in commercial and industrial mechanical systems rather than the residential plumbing services Cupertino specializes in.
Yes, significantly. Cupertino's 34 years means they've diagnosed thousands of residential plumbing scenarios, including hidden damage in older homes and complications that emerge during routine repairs. This experience translates to better problem-solving when unexpected issues arise. Therma's 9 years is respectable, but their experience centers on commercial mechanical work rather than the residential plumbing expertise relevant to your home.
Cupertino demonstrates clear capacity for emergency response, with customers consistently reporting same-day and next-day scheduling for urgent plumbing issues. Their focus on residential plumbing means they're structured to handle homeowner emergencies. Therma's commercial mechanical focus suggests they're not positioned for residential emergency plumbing calls.
Not meaningfully. Cupertino operates specifically as a residential and commercial plumber with three decades of relevant experience in home plumbing projects. Therma specializes in commercial mechanical contracting and industrial fabrication without demonstrated residential plumbing focus. For typical home plumbing needs, Cupertino's expertise directly matches your requirements while Therma serves a different market segment.
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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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