Compare Local Pros
Allstar Plumbing vs Down Under Plumbing Services
Santa Clara Plumbing Contractors Comparison · Updated March 2026
Both veteran contractors with 30+ years and full coverage, but Allstar has extensive reviews showing responsive service while Down Under lacks customer feedback.
| Allstar Plumbing | Down Under Plumbing Services | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 29 years | 34 years |
| License # | 732611 | 627666 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Jose, CA | Los Gatos, CA |
| Website | goallstar.com | — |
Key Differences
What Customers Say
Allstar Plumbing
Allstar consistently receives feedback highlighting rapid response times with same-day service, professional communication with transparent pricing explanations, and successful handling of both routine and complex plumbing challenges.
Key Takeaway: Allstar has extensive verifiable customer feedback documenting service patterns, while Down Under lacks sufficient recent reviews to assess current operational quality despite longer licensing history.
Customer Reviews
Allstar Plumbing
Great job Luis I give a 10
Joe L. Provided a great services and very satisfied with the work he did.
Joe was a great technician that new his job very well. He did a great job in letting us know what was happening with all of the repairs. You have a great company that is very helpful and professional....
Down Under Plumbing Services
No reviews available
Consider Allstar Plumbing if...
- ✓ You need confidence in response time for an emergency plumbing situation, as multiple customers document same-day and within-an-hour service
- ✓ Clear communication and transparent pricing matter to you, with documented patterns of explaining work before starting
- ✓ You want evidence of successful complex diagnostics and problem-solving on challenging plumbing issues
- ✓ You value documented repeat customer relationships showing consistent service quality over multiple years
Consider Down Under Plumbing Services if...
- ✓ You're located specifically in Los Gatos and prefer a contractor based in your immediate community
- ✓ You're willing to be an early online reviewer for a long-established business that simply lacks recent feedback
- ✓ You have a direct referral from someone who has recently used their services and can speak to current crew quality
- ✓ The five additional years of licensing history provides you meaningful additional confidence despite limited verifiable customer feedback
Questions to Ask Before Hiring
- → Ask Down Under for at least three recent customer references from the past six months who can speak to response times and communication quality
- → Ask Down Under how they handle emergency calls and what their typical response timeframe is for urgent plumbing issues
- → Request information about crew stability and how long their current technicians have been with the company
- → Ask about their process for providing estimates and whether pricing is explained clearly before work begins
The Bottom Line
Allstar Plumbing is the more defensible choice for most homeowners who need to hire this week. While Down Under has five additional years of licensing, both are veteran contractors with identical insurance and bonding protections. The deciding factor is verifiable performance: Allstar has extensive documentation of quick response times, clear communication, and successful complex repairs, while Down Under lacks the customer feedback needed to validate current service quality. Unless you have a direct personal referral for Down Under or strong preference for their Los Gatos location, Allstar offers more confidence that your plumbing emergency will be handled promptly and professionally.
Get Up to 3 Free Quotes
Compare prices from licensed, verified contractors
Frequently Asked Questions
Not meaningfully in this case. Both are veteran contractors with 29 and 34 years respectively, well past the threshold where experience differences create practical advantages. At this level, verifiable current service patterns matter far more than the licensing gap.
This could reflect differences in online review solicitation practices rather than service quality, but it creates a real information gap for you as a homeowner. Down Under may provide excellent service but simply hasn't built an online feedback presence, which means you'll need to verify their current performance through direct references.
Both have the licensing credentials for emergency work, but only Allstar has documented evidence of consistent rapid response times and same-day service. You should ask Down Under directly about their emergency response protocols and typical timeframes before deciding.
Location matters for response time, but documented service patterns matter more. Allstar serves the broader San Jose and Santa Clara County area including Los Gatos, and has proven rapid response times. Proximity is less important than verified ability to respond quickly when you need them.
Looking for the Best?
See our ranked list of top plumbing contractors in Santa Clara.
Other Santa Clara Plumbing Contractors Comparisons
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 08, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
Get in Touch
Have questions or feedback? We'd love to hear from you.