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A2Z Water Heaters vs Thompson Plumbing
Sacramento Plumbing Contractors Comparison · Updated March 2026
A2Z Water Heaters offers specialized water heater expertise with full insurance, while Thompson Plumbing provides broader services but lacks workers compensation coverage.
| A2Z Water Heaters | Thompson Plumbing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.4 |
| Years Licensed | 19 years | 9 years |
| License # | 896708 | 1028731 |
| Workers' Comp | ✓ Yes | — |
| Bond Amount | $25,000 | $25,000 |
| Location | Sacramento, CA | Fair Oaks, CA |
| Website | www.a2zwaterheaters.com | — |
Key Differences
What Customers Say
A2Z Water Heaters
Customers consistently emphasize A2Z's educational approach and detailed explanations during installations, with frequent mention of thorough code compliance work and corrections to previous substandard installations.
Thompson Plumbing
Thompson receives recognition for emergency availability and weekend response, with customers noting reasonable pricing but also mentioning scheduling challenges due to high demand.
Key Takeaway: A2Z's reviews focus on installation thoroughness and technical education, while Thompson's emphasize emergency accessibility, suggesting A2Z prioritizes teaching customers about their systems while Thompson focuses on rapid response to urgent situations.
Customer Reviews
A2Z Water Heaters
I highly recommend A2z Water Heaters for their outstanding work on my two properties. They demonstrated exceptional professionalism and a strong work ethic throughout the process.
I called on Friday, they came out on Saturday to give an estimate. He had the replacement heater with him and installed it in about 3 hours. Fred did a great job installing our water heater. Brough...
a2z Water Heaters did a phenomenal job with replacing my old gas water heater. It started making a loud noise and I realized water was already running out, so I called a2z Water Heaters. I had seen ...
Thompson Plumbing
Impeccable. Ryan is absolutely the best man for the job..and his rates are ridiculously less than expected! So win/win! He is extremely busy (understandably), so it is difficult to connect with him...
A great guy helped us with the clogged sink and bathroom.
They did a great job, provided great value, and they're really nice. I'll definitely use them again. We had two showers backing up and we couldn't fix it ourselves. These guys fixed the problem
Consider A2Z Water Heaters if...
- ✓ You need water heater replacement or installation and want a contractor who specializes exclusively in this work rather than treating it as one of many services
- ✓ Liability protection matters to you, and you want confirmation that workers compensation insurance covers any on-site injuries without risk to your homeowner's policy
- ✓ Your home is older and the water heater installation may reveal code compliance issues requiring experienced problem-solving and permitting expertise
- ✓ You value detailed explanations and educational approaches that help you understand your system and maintenance requirements
Consider Thompson Plumbing if...
- ✓ You need additional plumbing work beyond water heater replacement, such as valve repairs, sewer line work, or sprinkler system repairs handled by the same contractor
- ✓ You're willing to verify liability coverage details directly and confirm your homeowner's insurance adequately protects you in the absence of workers comp
- ✓ You can accommodate potentially longer wait times due to the contractor's busy schedule serving multiple service areas
- ✓ You're comfortable working with a contractor who has nearly a decade of experience rather than two decades
Questions to Ask Before Hiring
- → For Thompson Plumbing: Ask directly about liability insurance coverage and confirm with your homeowner's insurance whether you're protected if a worker is injured on your property without workers comp coverage
- → For A2Z Water Heaters: Ask about their typical timeline for water heater installation from initial call to completed inspection, given their specialization
- → For Thompson Plumbing: Ask about current scheduling availability, as reviews indicate high demand affects booking times
- → For both: Request references from water heater replacements completed in the past six months in homes similar to yours
The Bottom Line
For water heater replacement, A2Z Water Heaters is the stronger choice for most homeowners. Their 19-year veteran status, workers compensation coverage, and exclusive specialization provide both liability protection and deeper expertise for water heater work specifically. Thompson Plumbing's missing workers comp creates real risk that shouldn't be dismissed, though their broader capabilities make sense if you're bundling multiple plumbing projects and verify coverage details first. If you're replacing a water heater this week and want it done right with proper insurance protection, A2Z's specialization and complete coverage make them the clearer option.
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Frequently Asked Questions
Yes, particularly for older homes. A2Z's 19 years means they've navigated two decades of code changes, encountered countless hidden issues behind walls, and developed systematic approaches to complications. Thompson's 9 years is solid experience, but water heater work often reveals unexpected problems where veteran-level troubleshooting makes a practical difference.
If a worker is injured on your property and the contractor lacks workers comp, they may file a claim against your homeowner's insurance, potentially affecting your premiums or coverage. Before hiring Thompson, call your insurance agent to verify your policy covers contractor injuries and understand your exposure.
Thompson's broader service range is an advantage if you're combining water heater replacement with valve work, drain clearing, or other plumbing repairs. However, weigh this convenience against the workers comp concern and consider whether A2Z's specialized water heater expertise plus a separate plumber for other work might be safer and equally efficient.
Both offer emergency response capabilities, but A2Z's exclusive water heater focus may mean better availability for your specific need, while Thompson's reviews mention busy scheduling due to serving broader plumbing demands across multiple service areas. Call both to compare actual availability for your timeline.
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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 13, 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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