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Asap Plumbing vs Dinelli Plumbing
San Mateo Plumbing Contractors Comparison · Updated March 2026
Dinelli Plumbing brings 24 years of experience and full insurance coverage versus Asap Plumbing's 2-year track record without workers comp.
| Asap Plumbing | Dinelli Plumbing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.5 |
| Years Licensed | 2 years | 24 years |
| License # | 1113916 | 801472 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | South San Francisco, CA | Foster City, CA |
| Website | — | www.dinelliplumbing.com |
Key Differences
What Customers Say
Dinelli Plumbing
Customers consistently praise Dinelli Plumbing for efficient work completion and honest assessments that prioritize necessary repairs over replacements.
Key Takeaway: Only Dinelli Plumbing has established customer feedback demonstrating their service approach, while Asap Plumbing's limited review history provides no pattern to assess.
Customer Reviews
Asap Plumbing
No reviews available
Dinelli Plumbing
Great sub contractor!! They just get it done and are very professional.
Great plumber,repaired the old valve instead of upselling a new one
Consider Asap Plumbing if...
- ✓ You're getting multiple quotes and Asap Plumbing offers a significantly lower price for a straightforward repair where complications are unlikely
- ✓ You've confirmed your homeowner's insurance provides adequate coverage for contractor injuries and you're comfortable with that risk
- ✓ You're willing to take a chance on a newer contractor to help them build their business, understanding the experience tradeoff
Consider Dinelli Plumbing if...
- ✓ Your plumbing issue is in an older home where hidden problems behind walls are more likely and you need someone who's seen it before
- ✓ You want complete insurance protection without exposing your homeowner's policy to potential liability claims
- ✓ You value a track record of honest service without unnecessary upselling, as customer feedback consistently indicates
- ✓ You're dealing with a complex project where 24 years of problem-solving experience provides meaningful value
Questions to Ask Before Hiring
- → Ask Asap Plumbing directly about their liability coverage and confirm with your homeowner's insurance whether you're adequately protected if a worker is injured
- → Ask Asap Plumbing for references from projects completed in the past year, specifically jobs similar in scope to yours
- → Ask Dinelli Plumbing about their typical timeline for your type of project and crew availability this week
The Bottom Line
For most homeowners, Dinelli Plumbing is the clearer choice. The 24-year track record means they've handled complications you haven't thought of yet, and their workers comp coverage protects you from liability exposure that Asap Plumbing's missing insurance creates. Customer feedback confirming honest service without upselling adds confidence. Choose Asap Plumbing only if they're substantially cheaper for a simple job and you've verified your homeowner's insurance covers contractor injuries adequately.
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Frequently Asked Questions
For a simple fixture replacement, the gap matters less. But even routine jobs can reveal unexpected issues like corroded pipes or code violations, where a veteran contractor's pattern recognition helps them diagnose problems faster and propose solutions that won't need redoing. If your home is older than 15 years, that experience becomes more valuable.
If a worker is injured at your property and the contractor lacks workers comp, your homeowner's insurance may become the primary coverage. This could mean a claim against your policy, potential rate increases, and in worst cases, personal liability exposure. Call your insurance agent to understand your specific coverage before hiring any contractor without workers comp.
The data doesn't include pricing information for either company. Newer contractors sometimes price lower to build their customer base, but not always. Get specific quotes from both and weigh any price difference against the experience and insurance coverage gap.
Customer feedback suggests honest assessment rather than avoidance of recommendations. A contractor who repaired a valve instead of replacing it unnecessarily is applying judgment, not ignoring problems. This approach typically reflects confidence in their assessment skills rather than cutting corners.
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 11, 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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