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Cal Pacific Systems vs Stellar Plumbing
San Mateo Plumbing Contractors Comparison · Updated March 2026
Two veteran contractors with similar credentials, but only Stellar Plumbing has a documented track record of customer satisfaction with specific plumbing expertise.
| Cal Pacific Systems | Stellar Plumbing | |
|---|---|---|
| Rating | ★ 3.7 | ★ 5.0 |
| Years Licensed | 17 years | 20 years |
| License # | 924244 | 863322 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Brisbane, CA | Brisbane, CA |
| Website | www.calpacificsystems.com | stellarplumbinginc.com |
Key Differences
What Customers Say
Stellar Plumbing
Customers consistently praise Stellar Plumbing for punctual arrivals, clear explanations of work, and professional service delivery across various plumbing projects.
Key Takeaway: Stellar Plumbing has verifiable customer feedback demonstrating reliable service patterns, while Cal Pacific Systems lacks public reviews to assess their customer service approach and reliability.
Customer Reviews
Cal Pacific Systems
Paul was very easy to work with
Stellar Plumbing
Carter is an experienced professional who's on time and always fixes any issues we are having. Highly recommend!
Great experience from start to finish. Scheduling the appointment was easy, they arrived right on time, and Lan was extremely knowledgeable. Everything was explained clearly and the work was done effi...
Super happy with our upgraded kitchen faucet and water filtration system! Highly recommended professional service!
Consider Cal Pacific Systems if...
- ✓ You need general contracting work beyond plumbing and want a single point of contact for multi-trade projects
- ✓ You have personal references for Cal Pacific Systems that provide the service history missing from public reviews
- ✓ You're working on a project type where their 17 years of general contracting experience applies directly to your needs
Consider Stellar Plumbing if...
- ✓ Your project involves plumbing work where specialist knowledge matters for diagnosing problems and suggesting solutions
- ✓ You value documented evidence of punctuality and clear communication, especially if coordinating around your work schedule
- ✓ You want a contractor with verifiable customer feedback showing consistent professional service patterns
- ✓ You're installing specific fixtures or systems like water filtration where their documented project experience is directly relevant
Questions to Ask Before Hiring
- → Ask Cal Pacific Systems for references from recent projects similar to yours, and contact them to understand their service patterns
- → Ask Cal Pacific Systems about their specific experience with your project type and which trade will handle the work
- → Ask Stellar Plumbing about their experience with your specific plumbing issue or installation to confirm it matches their documented project history
The Bottom Line
For plumbing work specifically, Stellar Plumbing presents the clearer choice with 20 years of specialized experience, documented customer praise for punctuality and professional service, and proven expertise in fixtures, filtration systems, and repairs. Their verifiable track record reduces uncertainty when you need to hire this week. Cal Pacific Systems' credentials are solid, but without public feedback to assess their service patterns, you'll need to do additional due diligence through direct references. If your project extends beyond plumbing and you can verify Cal Pacific Systems' quality through personal references, their general contracting scope may offer value.
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Frequently Asked Questions
It depends on whether they have dedicated plumbing staff or subcontract the work. General contractors can employ licensed plumbers, but Stellar Plumbing's 20 years of plumbing-specific focus means deeper specialization in that trade. Ask Cal Pacific Systems directly who will perform the plumbing work and their specific qualifications.
Both qualify as veteran contractors, so the gap is less significant than the difference between veteran and newer companies. The more meaningful factor is Stellar Plumbing's documented customer satisfaction patterns versus Cal Pacific Systems' limited public feedback. Three additional years of continuous operation does suggest slightly more established business stability.
Limited reviews don't mean poor service, but they do mean less information to assess reliability and service patterns. Some established contractors simply don't focus on online reviews. Ask Cal Pacific Systems for direct references from recent customers, and contact those references to understand their punctuality, communication style, and problem-solving approach.
Cal Pacific Systems' general contractor license may allow them to coordinate multiple trades under one contract, which can simplify project management. However, if plumbing is the primary scope, Stellar Plumbing's specialization and documented service patterns may deliver better results for that portion, even if you need to hire separately for other trades.
Looking for the Best?
See our ranked list of top plumbing contractors in San Mateo.
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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 10, 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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