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Cupertino Plumbing vs KDS Plumbing
Santa Clara Plumbing Contractors Comparison · Updated March 2026
Both veteran contractors share identical credentials, but Cupertino Plumbing has substantial customer feedback while KDS Plumbing operates without visible reviews.
| Cupertino Plumbing | KDS Plumbing | |
|---|---|---|
| Rating | ★ 4.9 | ★ 3.7 |
| Years Licensed | 34 years | 31 years |
| License # | 624905 | 696971 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Campbell, CA | San Jose, CA |
| Website | www.cupertinoplumbing.com | — |
Key Differences
What Customers Say
Cupertino Plumbing
Customers consistently praise quick response times with same-day scheduling, professional technicians who communicate clearly and explain issues thoroughly, and reliable on-time arrivals across both simple repairs and complex installations.
Key Takeaway: Cupertino Plumbing has verifiable customer feedback documenting service patterns and reliability, while KDS Plumbing has no available reviews to assess current performance despite three decades in business.
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.
KDS Plumbing
Fast dependable reasonable priced
They do great afordabe work. Old school!
Consider Cupertino Plumbing if...
- ✓ You want verifiable evidence of responsive service, with customers consistently reporting same-day or next-day scheduling for urgent issues
- ✓ Your project involves complex work like whole-house repiping, sewer line replacement, or water heater installation where documented expertise matters
- ✓ Clear communication is important to you, as customers repeatedly mention technicians explaining issues and providing practical advice
- ✓ You value knowing what to expect, with patterns showing on-time arrivals and clean work areas after job completion
Consider KDS Plumbing if...
- ✓ You have a direct referral from someone who has personally used KDS Plumbing and can vouch for their work quality and reliability
- ✓ You are located closer to San Jose and prefer a contractor based in your immediate area
- ✓ You are comfortable making a hiring decision without customer feedback to verify service patterns or problem resolution
- ✓ You are willing to ask detailed questions about crew experience, response times, and references to compensate for lack of public reviews
Questions to Ask Before Hiring
- → For KDS Plumbing: Ask for at least three references from projects completed in the past year, and actually call them to ask about responsiveness, communication, and quality
- → For KDS Plumbing: Ask specific questions about typical response times for emergencies and how they handle scheduling to verify their availability matches your timeline
- → For KDS Plumbing: Ask how long their current crew has been with the company and what experience they have with your specific type of project
- → For both: Confirm the specific technician's experience level who will be assigned to your project, especially if it involves complex work like repiping or sewer lines
The Bottom Line
Cupertino Plumbing is the clearer choice for most homeowners. Both companies have equivalent veteran-level experience and protective credentials, but Cupertino Plumbing has documented evidence of responsive scheduling, professional conduct, and successful project completion across diverse work types. KDS Plumbing may be equally capable, but without customer feedback you cannot verify their current service quality, responsiveness, or reliability. If you need plumbing work this week, hire the contractor with proven patterns of showing up on time and getting work done right.
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Frequently Asked Questions
Not practically. Both companies are veteran contractors with over 30 years of continuous licensing, which means both have handled multiple generations of plumbing systems and technologies. The meaningful difference is that Cupertino Plumbing has verifiable customer feedback documenting their current service patterns, while KDS Plumbing does not.
Years licensed tells you they have stayed in business, but reviews tell you how they currently treat customers, whether they show up on time, how they handle problems, and if people would hire them again. Without reviews, you are making a hiring decision without verifiable information about service quality, which increases your risk of scheduling delays, poor communication, or unsatisfactory work.
Yes, both carry workers compensation insurance and $25,000 bonds, providing equivalent protection. If a worker is injured on your property, their workers comp covers it rather than your homeowner's insurance. The bond provides financial recourse if contracted work is not completed as agreed.
Location matters less than reliability for plumbing work. Both serve Santa Clara County including Campbell and San Jose areas. Cupertino Plumbing's customers specifically mention quick response times and same-day scheduling despite serving the broader county area, which is more valuable than proximity to a company whose responsiveness you cannot verify.
Looking for the Best?
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 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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