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Asap Plumbing vs Stellar Plumbing
San Mateo Plumbing Contractors Comparison · Updated March 2026
Stellar Plumbing's 20-year track record and workers comp coverage offer significantly more protection than Asap's 2-year operation without workers comp.
| Asap Plumbing | Stellar Plumbing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 2 years | 20 years |
| License # | 1113916 | 863322 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | South San Francisco, CA | Brisbane, CA |
| Website | — | stellarplumbinginc.com |
Key Differences
What Customers Say
Stellar Plumbing
Customers consistently praise Stellar for on-time arrivals, knowledgeable technicians who explain work clearly, and professional service delivery across various plumbing projects.
Key Takeaway: Stellar has verifiable customer feedback demonstrating reliability patterns, while Asap has limited review history requiring homeowners to rely on trust rather than documented performance.
Customer Reviews
Asap Plumbing
No reviews available
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 Asap Plumbing if...
- ✓ You have extreme budget constraints and are willing to accept higher liability risk to potentially save on labor costs for very simple, straightforward work
- ✓ You've independently verified that Asap carries adequate liability insurance and confirmed your homeowner's policy covers contractor injuries
- ✓ Your project is extremely basic (like replacing an exposed shutoff valve) with no possibility of hidden complications
Consider Stellar Plumbing if...
- ✓ You want protection from liability if someone gets hurt on your property during the work
- ✓ Your plumbing issue could involve hidden damage, older systems, or anything beyond surface-level repairs where experience diagnosing problems matters
- ✓ You value verifiable proof of punctuality and professional service over taking a chance on an unproven contractor
- ✓ Your project involves anything structural, behind walls, or requiring permit work where veteran experience prevents costly mistakes
Questions to Ask Before Hiring
- → Ask Asap directly about their liability insurance limits and explicitly confirm whether your homeowner's policy would cover injuries to their workers, then verify this with your insurance agent
- → Ask Asap for references from projects completed in the past year similar to yours, and actually call those references
- → Ask Stellar about their current crew stability and how long their technicians have been with the company
The Bottom Line
Unless you have compelling budget reasons and have thoroughly verified your liability protection, Stellar Plumbing is the clear choice for most homeowners. The combination of 20 years of problem-solving experience and workers comp protection addresses the two biggest risks in hiring contractors: work quality and liability exposure. Asap may develop into a solid contractor over time, but right now you'd be choosing hope over track record while accepting financial risk that Stellar eliminates. For a project you need completed this week with minimal worry, the veteran with proven punctuality and full insurance coverage is the straightforward answer.
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Frequently Asked Questions
Yes, because basic plumbing work frequently reveals hidden problems. A veteran plumber has seen thousands of situations where a simple faucet replacement uncovers corroded supply lines or a minor leak reveals failed waterproofing. That pattern recognition prevents small jobs from becoming expensive emergencies. Newer contractors are still building that diagnostic intuition.
Without workers comp, an injured worker can potentially sue you as the property owner. Your homeowner's insurance may provide some coverage, but you could face claims, deductibles, and premium increases. This is why workers comp status is a standard consideration when hiring contractors—it transfers that risk away from your household.
Possibly, but newer contractors sometimes underbid because they haven't yet learned to account for complications, which can lead to mid-project change orders that eliminate initial savings. Without customer reviews to verify their pricing transparency, you're taking on risk without confirmed cost benefits. Ask for detailed written estimates from both to compare actual numbers.
No contractor offers guarantees, but two decades of continuous licensure means they've survived economic downturns, maintained their bond and insurance, and earned enough repeat business to sustain operations. The customer feedback about punctuality and clear communication shows these aren't just years on paper but active, professional service habits.
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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