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J.J. Commercial Water Heaters vs Star Rooter And Plumbing
Alameda Plumbing Contractors Comparison · Updated March 2026
Star Rooter brings nearly three times the licensing history and extensive customer feedback, while J.J. specializes narrowly in commercial water heaters with limited review history.
| J.J. Commercial Water Heaters | Star Rooter And Plumbing | |
|---|---|---|
| Rating | ★ 3.0 | ★ 4.7 |
| Years Licensed | 7 years | 19 years |
| License # | 1049808 | 884481 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Hayward, CA | San Lorenzo, CA |
| Website | www.jjishot.com | www.starrooter.com |
Key Differences
What Customers Say
Star Rooter And Plumbing
Customers consistently praise Star Rooter's same-day responsiveness, transparent pricing with no surprise charges, and thorough diagnostic approach using camera equipment and crawlspace inspections.
Key Takeaway: Star Rooter has extensive documented customer feedback showing reliable service patterns, while J.J. Commercial Water Heaters lacks the review history needed to assess their actual performance with residential clients.
Customer Reviews
J.J. Commercial Water Heaters
The best in the business! Rich and Jessie are amazing. The most honest and hardworking guys I know. You need it done they will always find a way to take care of the problem.
Star Rooter And Plumbing
We appreciated how quickly the plumbers were able to come to our home and ascertain the best course of action they should take. They were able to resolve the issue of the stoppage in the drain line wh...
Freddy was a great and a best work for me and family.
We had a great experience with Star Rooter! He took very good care of my parents bathrooms who are located in Castro Valley. Freddy and crew, were knowledgeable, great to work with and super polite. P...
Consider J.J. Commercial Water Heaters if...
- ✓ You need specialized commercial water heater expertise for a business property rather than residential plumbing services
- ✓ Your project involves commercial-grade water heating systems that require specific technical knowledge beyond typical residential plumbing
- ✓ You prefer working with a contractor who maintains high owner involvement and can provide focused attention to commercial heating installations
Consider Star Rooter And Plumbing if...
- ✓ You need comprehensive plumbing services beyond just water heaters, including drain clearing, pipe replacement, or sewer work
- ✓ You want a contractor with documented customer feedback showing transparent pricing, same-day availability, and efficient project completion
- ✓ Your home may have hidden plumbing issues requiring diagnostic experience from a veteran contractor who has handled complex residential projects
- ✓ You value proven communication practices and want a contractor with 19 years of experience navigating permit processes and code compliance
Questions to Ask Before Hiring
- → Ask J.J. Commercial Water Heaters for references from recent residential water heater projects and inquire about their experience with residential code requirements versus commercial work
- → Ask Star Rooter about their specific water heater installation experience and whether they stock or can quickly source the particular water heater model you need
- → Confirm service call fees and diagnostic charges upfront with J.J., as their considerations note these may be higher than typical
- → Ask both contractors for detailed written estimates that break down labor, materials, and any permit fees for your specific project
The Bottom Line
Unless you specifically need commercial water heater expertise for a business property, Star Rooter And Plumbing is the clearer choice for residential water heater work. Their 19 years of licensing, documented customer satisfaction showing transparent pricing and efficient completion, and proven experience with residential plumbing projects from simple repairs to complex repipes represent substantially lower risk than J.J.'s limited review history. Star Rooter's veteran status means they've handled thousands of residential projects and unexpected complications that come with older homes. Get quotes from both if you want pricing comparison, but Star Rooter's track record provides the confidence you need when choosing a contractor this week.
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Frequently Asked Questions
Their commercial focus suggests deep technical knowledge of water heating systems, but the lack of customer reviews makes it impossible to verify their residential service quality or pricing practices. Without feedback documenting how they handle homeowner communication, scheduling, or typical residential installations, you're taking on more uncertainty than with Star Rooter's documented residential track record.
For a simple swap of a standard water heater in an accessible location, experience gaps matter less. However, if your project involves relocating the unit, upgrading from tank to tankless, addressing code compliance issues, or dealing with old plumbing that may break during disconnection, Star Rooter's 19 years means they've encountered and solved these complications many times before.
Star Rooter's customer reviews specifically mention water heater installations among their completed projects, and as a full-service plumbing company with 19 years of experience, they regularly handle residential water heater work. Their broader residential focus may actually be more aligned with typical home installations than J.J.'s commercial specialization.
Contractors with commercial specialization often structure their pricing for business clients rather than residential customers, which can mean higher minimum charges or diagnostic fees. Without customer reviews to verify their actual pricing practices, you should get detailed written estimates upfront and compare them directly with Star Rooter's quote for the same scope of work.
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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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