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Dittmann Plumbing vs Stellar Plumbing
San Mateo Plumbing Contractors Comparison · Updated March 2026
Dittmann Plumbing brings 50 years of licensing experience versus Stellar Plumbing's 20 years, with both maintaining full insurance and bonding.
| Dittmann Plumbing | Stellar Plumbing | |
|---|---|---|
| Rating | ★ 3.9 | ★ 5.0 |
| Years Licensed | 50 years | 20 years |
| License # | 311169 | 863322 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Mateo, CA | Brisbane, CA |
| Website | www.dittmannplumbing.com | stellarplumbinginc.com |
Key Differences
What Customers Say
Dittmann Plumbing
Customers emphasize Dittmann's detailed explanations and willingness to walk homeowners through complex repairs, with documented success handling emergency scenarios and stubborn drainage issues.
Stellar Plumbing
Stellar receives consistent praise for punctual arrivals and professional efficiency on straightforward installations like faucets and filtration systems.
Key Takeaway: Dittmann's feedback centers on thorough communication during complex problem-solving, while Stellar's customers highlight streamlined service delivery for routine plumbing projects.
Customer Reviews
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!
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 Dittmann Plumbing if...
- ✓ Your home is older with potentially outdated plumbing systems that may require extensive knowledge of legacy materials and configurations that come with 50 years of field experience
- ✓ You're dealing with an emergency situation like flooding or complex drainage issues where Dittmann's documented emergency response expertise becomes critical
- ✓ You value technicians who provide comprehensive explanations and walk you through the diagnostic process, even if it means potentially higher upfront pricing
- ✓ Your project might uncover hidden complications requiring on-the-spot problem-solving from deeply experienced technicians
Consider Stellar Plumbing if...
- ✓ You have a straightforward installation or repair project like fixture upgrades or water filtration systems where Stellar's documented project efficiency shines
- ✓ Punctuality and streamlined service are top priorities, with multiple customers specifically mentioning on-time arrivals and efficient work completion
- ✓ You prefer a more straightforward professional approach without extensive process explanations for routine plumbing work
- ✓ Your budget is sensitive and you want to compare quotes, as Stellar may offer competitive pricing for standard installations
Questions to Ask Before Hiring
- → Ask Dittmann for specific examples of how their 50 years of experience would benefit your particular project type and whether their pricing reflects diagnostic thoroughness versus just labor rates
- → Ask Stellar about their experience level with complex or emergency scenarios if your project might involve complications beyond routine repairs
- → Request references from both companies for projects similar in scope and complexity to yours, particularly if you have an older home with potential hidden issues
The Bottom Line
Dittmann Plumbing's 50-year track record makes them the stronger choice for complex repairs, older homes with potential hidden issues, or emergency situations where deep experience matters most. Their customers value detailed explanations and thorough problem-solving, though some note higher pricing for installations. Stellar Plumbing offers solid veteran-level expertise with 20 years of licensing and receives consistent praise for punctuality and efficient service on straightforward installations. For routine fixture upgrades or standard repairs where experience depth matters less, Stellar provides reliable service potentially at more competitive rates. If your home is older or your project might uncover complications, Dittmann's additional 30 years of field experience provides meaningful added value.
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Frequently Asked Questions
For truly routine work like simple faucet replacements or basic drain cleaning, both companies have sufficient expertise. However, if your project reveals unexpected complications—corroded pipes, code violations from previous work, or unusual system configurations—Dittmann's 50 years of field experience provides a deeper knowledge base for problem-solving without callbacks or delays.
A few reviews reference higher-than-expected quotes for installation projects, which may reflect their thorough diagnostic approach or premium for extensive experience. Since both companies are properly licensed and insured, the price difference likely comes down to service approach rather than basic qualifications. Request itemized quotes from both to understand what you're paying for.
Dittmann explicitly mentions emergency flood response in their service history and has documented experience with urgent scenarios like pipe rooting and backed-up drains. While Stellar handles repairs competently, their review feedback focuses more on scheduled appointments and planned installations rather than crisis response situations.
Both receive positive feedback for punctuality, but Stellar has multiple specific mentions of on-time arrivals as a standout feature. Dittmann is described as responsive and punctual as well, so both appear reliable, though Stellar's customers emphasize timeliness more consistently in their feedback.
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 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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