Compare Local Pros
Maz Plumbing Under Ground And Sewer Services vs Pribuss Engineering
San Mateo Plumbing Contractors Comparison · Updated March 2026
A specialized plumber with rapid response versus a veteran engineering contractor serving older commercial properties.
| Maz Plumbing Under Ground And Sewer Services | Pribuss Engineering | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.1 |
| Years Licensed | 2 years | 58 years |
| License # | 1111601 | 251241 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Mateo, CA | So San Francisco, CA |
| Website | mazplumbing.com | www.pribuss.com |
Key Differences
What Customers Say
Maz Plumbing Under Ground And Sewer Services
Customers consistently praise rapid emergency response, transparent upfront pricing, and the owner's direct hands-on involvement in residential plumbing projects.
Pribuss Engineering
Feedback highlights technical expertise with fire sprinkler systems and long-term maintenance relationships for older commercial multi-unit properties.
Key Takeaway: Maz reviews focus on residential plumbing emergencies and installations with same-day service, while Pribuss reviews emphasize specialized commercial building systems and ongoing property management relationships.
Customer Reviews
Maz Plumbing Under Ground And Sewer Services
Fantastic experience with Al - quality work and great service! Al did an excellent job installing my new bathtub, shower kit, valves, and bath spout. His workmanship is top-notch, everything looks and...
Maz plumbing is SUPERB. Family owned (the actual owner, Al, comes in to do the work with his helper), he has been in business for almost 30 years. Top quality, speed, clear communication, honest, tid...
Al is the only plumber you need to know around this area. I have hired many plumbing companies before I got to know Al and hated all of them so much. Especially big plumbing companies that send out am...
Pribuss Engineering
I was experiencing a leak at home with one of my fire sprinklers and this was a really great experience. Dave Turner was a great help given his knowledge of fire sprinklers and with his extensive expe...
They have been helping us take care of a 100 years six unit building for decades. A building this age has problems from time to time. These guys have always shown up ASAP and have solved the vario...
Consider Maz Plumbing Under Ground And Sewer Services if...
- ✓ You need residential plumbing work like sewer line replacement, water heater installation, or fixture repairs that match their documented project history
- ✓ Rapid response matters and you value same-day or weekend emergency availability that reviews consistently mention
- ✓ You prefer working directly with the owner who will be on-site, and you're comfortable verifying your homeowner's insurance covers potential contractor injuries
- ✓ Transparent upfront pricing before work begins is a priority for your project budget
Consider Pribuss Engineering if...
- ✓ Your project involves fire sprinkler systems, commercial building maintenance, or multi-unit property engineering work
- ✓ Workers compensation coverage is non-negotiable for your risk management approach
- ✓ You're managing an older commercial property requiring specialized building system expertise
- ✓ You value decades of continuous operation and institutional stability over rapid residential service
Questions to Ask Before Hiring
- → For Maz Plumbing: Ask explicitly about liability coverage and confirm with your homeowner's insurance whether contractor injuries are covered if workers comp is not carried by the contractor
- → For Maz Plumbing: Request references from recent residential projects similar to yours, given the 2-year formal licensure period
- → For Pribuss Engineering: Confirm they regularly handle residential plumbing projects like yours, as reviews emphasize commercial and fire sprinkler work
- → For both: Ask for detailed written estimates and project timelines specific to your scope of work
The Bottom Line
These contractors serve different markets. For residential plumbing work like sewer lines, water heaters, or fixture installations, Maz Plumbing's specialization, rapid response times, and transparent pricing align with homeowner needs—but you must address the workers comp gap with your insurance agent before hiring. Pribuss Engineering's 58-year history and full insurance are valuable, but their documented expertise centers on commercial fire sprinkler systems and multi-unit buildings. Choose based on which company's actual project portfolio matches your work, and don't hire Maz without confirming your liability coverage first.
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Frequently Asked Questions
The license reflects recent formal business establishment, but reviews mention the owner brings nearly 30 years of plumbing trade experience. The newer license means less track record as an independent contractor, so requesting references from similar projects is wise.
If Maz brings assistants to your project and someone is injured, you could face liability claims against your homeowner's insurance. Before hiring, contact your insurance agent to confirm your policy covers contractor injuries when the contractor doesn't carry workers comp.
Their review feedback focuses heavily on fire sprinkler systems and multi-unit commercial buildings, not residential plumbing. If your project involves standard home plumbing work, ask directly whether they regularly handle residential service calls and can provide relevant references.
For residential plumbing emergencies and installations, Maz's project portfolio and review themes directly match homeowner needs, while Pribuss appears specialized in commercial engineering. Years licensed matters most when the experience applies to your specific project type.
Looking for the Best?
See our ranked list of top plumbing contractors in San Mateo.
Other San Mateo Plumbing Contractors Comparisons
Discount Plumbing Rooter Services
★ 4.9
Pribuss Engineering
★ 4.1
Dr Drain Plumbing And Rooter
★ 4.9
Pribuss Engineering
★ 4.1
Pribuss Engineering
★ 4.1
Stellar Plumbing
★ 5.0
Maz Plumbing Under Ground And Sewer Services
★ 5.0
Rosenberg Plumbing
★ 4.6
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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