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Shamrock Plumbing vs Comet Plumbing And Sewer
Santa Clara Plumbing Contractors Comparison · Updated March 2026
Both are veteran contractors with full insurance, but Shamrock's 25 years versus Comet's 15 years and high owner involvement create distinct service profiles.
| Shamrock Plumbing | Comet Plumbing And Sewer | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.9 |
| Years Licensed | 25 years | 15 years |
| License # | 793624 | 951887 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Santa Clara, CA | Sunnyvale, CA |
| Website | — | www.call-comet.com |
Key Differences
What Customers Say
Shamrock Plumbing
Shamrock customers emphasize quick emergency response, efficient completion of standard repairs, and competitive pricing for straightforward plumbing work.
Comet Plumbing And Sewer
Comet customers highlight Andrew's thorough diagnostic approach with detailed explanations, versatility across project scales from repairs to full system replacements, and rapid response including weekends and holidays.
Key Takeaway: Comet receives specific praise for detailed communication and diagnostic tools like camera inspections that reveal underlying issues, while Shamrock's feedback focuses more on speed and value for routine emergency repairs.
Customer Reviews
Shamrock Plumbing
Shamrock Plumbing saved the day! I noticed that my water heater was leaking and we had no hot water! I called our neighborhood plumber Shamrock and they were able to come over the same day to take a l...
I called Shamrock plumbing to help at the last minute with my home garbage disposal and a few pipes under the sink that needed to be replaced. He did an amazing job at a extremely fair price. He was q...
Very prompt and very professional great job! Very reasonable price
Comet Plumbing And Sewer
Comet plumbing did a excellent job at my home . A fair price, competent, knowledgeable, efficient , clean and professional! Thank you Andy, I will be calling you for future issues if needed.
We had a drain issue right around the holidays and Andrew fixed it that same day. He and his team have always done great work at a fair price!
Andrew from Comet Plumbing was wonderful! He helped install two clean-outs and fixed a root infested pipe for a reasonable price (plus nice discount). I'll definitely be using them again!
Consider Shamrock Plumbing if...
- ✓ You need a straightforward emergency repair like a water heater replacement, garbage disposal, or under-sink pipe work where speed and competitive pricing are priorities
- ✓ Your plumbing system is relatively modern and you're dealing with a common issue rather than a complex diagnostic challenge
- ✓ You want proven longevity with 25 years of continuous operation demonstrating business stability and survival through economic cycles
- ✓ You prefer working with an established neighborhood presence in Santa Clara specifically
Consider Comet Plumbing And Sewer if...
- ✓ Your project involves complex infrastructure work like sewer line replacement, full re-pipes, water main repair, or cleanout installations requiring advanced expertise
- ✓ You want thorough diagnostic work including camera inspections to identify underlying issues before committing to repairs
- ✓ Direct owner involvement matters to you and you value detailed explanations of what's wrong and why specific solutions are recommended
- ✓ You need weekend or holiday service and appreciate having multiple communication channels with the person doing the actual work
Questions to Ask Before Hiring
- → For Shamrock: Ask who will be performing the work on-site and how long they've been with the company, since owner involvement is unclear
- → For Comet: Ask about Andrew's availability for your specific timeline, since high owner involvement may limit scheduling flexibility during busy periods
- → For both: Request references from projects similar to yours in scope and complexity to gauge experience with your specific type of work
- → If your project may uncover additional issues: Ask how each company handles scope changes and pricing for unexpected complications discovered mid-project
The Bottom Line
For standard plumbing repairs and replacements where speed and competitive pricing matter most, Shamrock's 25-year track record makes them a solid choice. However, if your project involves complex diagnostics, infrastructure work, or you want detailed explanations from the owner doing the work, Comet's hands-on approach with Andrew Rhodes and broader project versatility provide meaningful advantages despite having a decade less experience. Both are properly insured veterans, so your choice should center on project complexity and whether you value direct owner involvement over maximum longevity. If you're uncertain about project scope, start with Comet's diagnostic approach to understand what you're actually dealing with.
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Frequently Asked Questions
For a straightforward swap, probably not significantly since both are veteran contractors. The experience gap becomes more relevant if complications arise, like discovering corroded pipes, code violations, or unusual configurations where Shamrock's additional decade of problem-solving matters. For simple replacements, both have ample experience.
The data shows Comet's customers report a wider range of project types including full re-pipes and sewer line work, likely reflecting Andrew's hands-on approach and diagnostic focus with camera inspections. Shamrock may handle complex work too, but customer feedback emphasizes speed and efficiency on standard repairs rather than infrastructure overhauls.
With Andrew, you get direct communication with the person diagnosing and fixing your problem, which customers mention leads to detailed explanations and consistent quality. The tradeoff is potential scheduling limitations since he can only be in one place at a time. Shamrock's structure isn't specified, so you should ask who performs the work and their experience level.
Both respond quickly to emergencies, but Comet receives specific mentions for weekend and holiday availability with Andrew responding within hours. If your emergency happens outside typical business hours or you need immediate diagnostic work to understand the full scope, Comet's pattern suggests stronger odd-hours responsiveness. For standard business-day emergencies, both appear equally capable.
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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 08, 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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