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Cupertino Plumbing vs Therma
Santa Clara Plumbing Contractors Comparison · Updated March 2026
This comparison pairs a residential plumbing specialist with 34 years of experience against a commercial mechanical contractor focused on industrial fabrication.
| 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 Plumbing for quick response times, professional service, and clear communication throughout residential plumbing projects of all sizes.
Therma
Customers highlight Therma's manufacturing quality and precision fabrication capabilities for commercial mechanical and industrial applications.
Key Takeaway: Cupertino Plumbing's reviews focus entirely on residential plumbing service quality, while Therma's reviews discuss commercial fabrication capabilities, confirming they serve completely different markets.
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 of any kind, from emergency drain clogs to whole-house repiping projects
- ✓ You value a contractor with over three decades of experience diagnosing and solving home plumbing issues
- ✓ You want same-day or next-day service for urgent plumbing problems, which customers consistently report receiving
- ✓ You prefer working with a company that specializes exclusively in the type of work you need done
Consider Therma if...
- ✓ You require commercial mechanical contracting services, HVAC duct manufacturing, or custom metal fabrication for an industrial facility
- ✓ Your project involves specialty ducting components, medical gas systems, or process equipment fabrication
- ✓ You need high-volume manufacturing capabilities for commercial mechanical components
- ✓ You operate a business in Silicon Valley requiring precision fabrication work for commercial applications
Questions to Ask Before Hiring
- → Ask Therma directly whether they provide residential plumbing services or if their work is exclusively commercial and industrial
- → If Therma does serve residential clients, ask for specific references from home plumbing projects, not commercial fabrication work
- → Ask Cupertino Plumbing about their experience with your specific plumbing issue and how quickly they can schedule an appointment
The Bottom Line
For residential plumbing work, choose Cupertino Plumbing without hesitation. Their 34 years of specialized residential experience, consistent customer feedback about responsive service and quality work, and clear focus on home plumbing needs make them the appropriate contractor. Therma serves commercial and industrial clients with fabrication and mechanical systems work. Unless you need custom ductwork manufacturing or commercial mechanical contracting, Therma is not a relevant option regardless of their technical capabilities in their specialty.
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Frequently Asked Questions
Based on available information, Therma focuses on commercial mechanical contracting and industrial fabrication, not residential plumbing services. Their customer feedback discusses manufacturing capabilities and commercial projects, with no mention of home plumbing work. You should contact them directly to confirm whether they serve residential clients at all.
Yes, significantly. Cupertino Plumbing's 34 years means they have encountered virtually every residential plumbing scenario, from aging pipe failures to complex repiping in older homes. This depth of experience helps diagnose hidden issues and anticipate complications that newer contractors might miss, particularly important for major projects like whole-house repiping or sewer line work.
You would consider Therma if you need commercial mechanical services, custom HVAC duct fabrication, or industrial metal fabrication work that Cupertino Plumbing does not provide. These are completely different specializations serving different markets. For residential plumbing, Cupertino Plumbing is the clear match.
Both maintain active licenses, workers compensation insurance, and identical $25,000 bonds, providing equivalent legal protections. However, reliability for your specific project depends on whether the contractor actually serves your market and has relevant experience with your type of work, not just licensing credentials.
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See our ranked list of top plumbing 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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