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Cpr Plumbing vs Dittmann Plumbing
San Mateo Plumbing Contractors Comparison · Updated March 2026
Dittmann Plumbing carries workers compensation insurance while CPR Plumbing does not, creating significantly different liability exposure for homeowners.
| Cpr Plumbing | Dittmann Plumbing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 3.9 |
| Years Licensed | 37 years | 50 years |
| License # | 547484 | 311169 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Carlos, CA | San Mateo, CA |
| Website | — | www.dittmannplumbing.com |
Key Differences
What Customers Say
Cpr Plumbing
Customers return to CPR Plumbing repeatedly over years for multiple residential projects, indicating reliable quality and relationship continuity.
Dittmann Plumbing
Dittmann Plumbing receives praise for detailed explanations and punctuality, though some customers note pricing concerns on installation projects.
Key Takeaway: CPR builds long-term customer loyalty through consistent service delivery, while Dittmann emphasizes thorough communication and process transparency at a potentially higher price point.
Customer Reviews
Cpr Plumbing
I've used Mark for multiple plumbing tasks, including installing a sink in the garage, installing a faucet behind the house, and bathroom updates. He is reliable, does a great job, and I highly recom...
I have been using the services of CPR Plumbing (Mark Salvoni) for many years now. In past service calls, he has replaced my old leaky kitchen sink faucet with a new model, installed a new water heater...
Dittmann Plumbing
Always responsive in a timely manner and reasonable.
It was a pleasure doing business with the folks at Dittman. They are punctual, knowledgeable, efficient, and professional. Don and Dave helped snake the kitchen drain, Maria answered my many questio...
These fellas know what it takes to resolve most every plumbing issue!
Consider Cpr Plumbing if...
- ✓ You have an established relationship with the contractor or strong referrals from neighbors who've used them multiple times
- ✓ Your project is straightforward fixture replacement or standard residential plumbing work where liability risk is minimal
- ✓ You're willing to verify your homeowner's insurance covers contractor injuries and accept potential liability exposure
- ✓ You value working with a smaller operation where the same person handles your projects consistently over time
Consider Dittmann Plumbing if...
- ✓ You want full insurance protection without potential liability gaps if someone is injured during your project
- ✓ Your situation involves emergency plumbing issues like flooding that require immediate response and reconstruction coordination
- ✓ You prefer working with a company that has multiple technicians available for scheduling flexibility
- ✓ You value detailed explanations of work processes and want technicians who walk you through each repair step
Questions to Ask Before Hiring
- → Ask CPR Plumbing directly about liability coverage and confirm with your homeowner's insurance whether you're protected if a contractor without workers comp is injured on your property
- → Ask Dittmann Plumbing for itemized estimates upfront given feedback about pricing concerns, and clarify their pricing structure for installations versus repairs
- → Ask both companies for references from projects completed in the past year that match your specific plumbing needs
The Bottom Line
Dittmann Plumbing is the safer choice for most homeowners due to their workers compensation coverage, which eliminates a significant liability gap that CPR Plumbing presents. While CPR has built strong customer relationships and delivers reliable work, the insurance difference creates real financial risk every time they work at your property. If you're considering CPR based on price or personal referral, contact your homeowner's insurance first to understand your exposure—many homeowners don't realize they can be held liable for contractor injuries when workers comp is absent. For straightforward protection and peace of mind, choose Dittmann despite potentially higher quotes.
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Frequently Asked Questions
Even straightforward projects carry injury risk from slips, tool accidents, or unexpected complications like corroded pipes. If a contractor without workers comp is injured at your home, your homeowner's insurance may have to cover their medical bills and lost wages, potentially affecting your premiums. The risk exists regardless of project size.
Both companies have deep veteran expertise that covers virtually any residential plumbing scenario. The more meaningful operational difference is that Dittmann has multiple technicians and emergency response capabilities, while CPR appears to be a smaller operation. The experience gap matters less than the insurance and capacity differences.
Companies with full insurance coverage including workers comp typically have higher operating costs that get reflected in pricing. You're partly paying for protection and reduced liability risk. Get detailed estimates from both companies for your specific project to compare actual costs, not assumptions.
CPR's review pattern shows customers returning repeatedly over years for multiple projects, suggesting strong relationship continuity. However, this advantage is undermined by the workers comp gap that creates liability concerns each time they work at your home. Dittmann's insurance coverage makes them the safer choice for ongoing service needs.
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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 12, 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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