Compare Local Pros
Contra Costa Heating And Air Conditioning vs Taz Plumbing
Alameda Plumbing Contractors Comparison · Updated March 2026
You're comparing an HVAC specialist with workers comp coverage to a plumbing contractor without it, making this primarily a choice between different trades.
| Contra Costa Heating And Air Conditioning | Taz Plumbing | |
|---|---|---|
| Rating | ★ 4.1 | ★ 4.5 |
| Years Licensed | 14 years | 11 years |
| License # | 970192 | 998588 |
| Workers' Comp | ✓ Yes | — |
| Bond Amount | $25,000 | $25,000 |
| Location | San Leandro, CA | San Leandro, CA |
| Website | www.contracostaheating.com | — |
Key Differences
What Customers Say
Contra Costa Heating And Air Conditioning
Customers consistently praise installation-phase performance with punctual, clean crews and professional sales consultations, but report frustration with inconsistent responsiveness for post-installation service and warranty callbacks.
Taz Plumbing
Customers highlight responsive ongoing communication, problem-solving abilities that resolved issues other contractors missed, and competitive pricing without unexpected charges throughout the service relationship.
Key Takeaway: Contra Costa excels during the installation phase but struggles with follow-up support, while Taz Plumbing maintains strong communication and responsiveness throughout the entire customer relationship.
Customer Reviews
Contra Costa Heating And Air Conditioning
Contra Costa Heating and Air Conditioning did an excellent job repairing our heater during winter. They arrived on time, explained the issue clearly, and left the work area very clean. Highly professi...
We had our furnace serviced and everything went smoothly. The technician was punctual, courteous, and respectful of our home. It's hard to find companies this reliable anymore.
Our furnace stopped working during a cold week and CCHA responded quickly. They fixed the issue the same day and left no mess behind.
Taz Plumbing
Knowledgeable, super friendly, and efficient. Even learned a couple helpful things about plumbing unrelated to my issue!
Great and helpful plumbers, and saved the day when I had an emergency situation in need of repair. Fast and friendly. Very reasonable price for the job. Would absolutely use again!
We had a leaking pipe and Najeeb came out right away, and fixed the leak very quickly. He stuck to his quote and did not try to upsell us.
Consider Contra Costa Heating And Air Conditioning if...
- ✓ You need HVAC installation or repair and want a contractor with full insurance coverage protecting you from liability if workers are injured during furnace or air conditioning work
- ✓ Your project involves a major system replacement where initial installation quality matters more than ongoing service relationship, and you're comfortable being persistent about warranty callbacks
- ✓ You value the additional purchasing options through Costco or Home Depot partnerships for potential equipment discounts or extended warranties
- ✓ Your heating or cooling system is 14+ years old and may involve complex diagnostics that benefit from a contractor with extensive experience in varied installation scenarios
Consider Taz Plumbing if...
- ✓ You need plumbing work and are willing to verify current insurance status and confirm your homeowner's policy covers contractor injuries during the project
- ✓ Your project requires troubleshooting skills for problems other contractors couldn't solve, and you value a responsive, educational approach from a technician who explains issues clearly
- ✓ Competitive pricing without surprise charges matters more to you than having workers comp documentation on file with the state
- ✓ You prefer working with a contractor who demonstrates high owner involvement and maintains strong communication throughout the service relationship, not just during installation
Questions to Ask Before Hiring
- → For Taz Plumbing: Ask directly about current liability insurance and workers compensation status, and verify your homeowner's insurance covers injuries to uninsured contractors working on your property
- → For Contra Costa Heating: Ask what their guaranteed response time is for warranty service and post-installation callbacks, and request a direct phone number for the service department
- → Ask both contractors for references from projects completed 6-12 months ago so you can inquire about their experience with follow-up service
The Bottom Line
If you need HVAC work, choose Contra Costa Heating And Air Conditioning for their full insurance coverage and three additional years of experience, but get warranty response commitments in writing and stay persistent about post-installation service needs. If you need plumbing work, Taz Plumbing offers strong problem-solving skills and responsive service, but only proceed after verifying your homeowner's insurance covers contractor injuries and confirming you're comfortable with that liability risk. The missing workers comp isn't a minor paperwork issue—it's a real financial exposure that deserves serious consideration before signing a contract.
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Frequently Asked Questions
If a Taz Plumbing worker is injured on your property, you could be held liable for medical costs and lost wages since the company doesn't carry workers compensation coverage. Your homeowner's insurance may cover this, but filing such a claim could affect your premiums. Before hiring them, call your insurance agent to confirm your coverage and consider whether the potential liability risk is worth it for your specific plumbing project.
For HVAC work, Contra Costa's 14 years versus Taz Plumbing's 11 years represents more exposure to evolving efficiency standards, heat pump technology, and complex system diagnostics. However, both are established contractors well past the startup phase. The more significant difference is their trade specialization—you wouldn't hire an HVAC contractor for plumbing work regardless of their years in business.
Get the warranty terms in writing before work begins, including specific response time commitments for callbacks. Request a direct phone number or email for the service department, not just the sales line. Document all communication attempts if you need warranty work, and consider whether the equipment manufacturer's warranty might provide an alternative service path if the installer becomes unresponsive.
Pricing structures differ significantly between HVAC and plumbing trades, making direct comparison impossible. HVAC projects typically involve higher equipment costs but more predictable labor, while plumbing often requires diagnostic time to identify hidden issues. Taz Plumbing's reviews specifically mention competitive pricing and no surprise charges, while Contra Costa's pricing feedback is limited, though their retail partnerships may offer equipment discounts.
Looking for the Best?
See our ranked list of top plumbing contractors in Alameda.
Other Alameda Plumbing Contractors Comparisons
Contra Costa Heating And Air Conditioning
★ 4.1
Service Champions
★ 4.9
Contra Costa Heating And Air Conditioning
★ 4.1
Valley Plumbing Home Center
★ 4.9
Contra Costa Heating And Air Conditioning
★ 4.1
Superior Mechanical Services
★ 4.8
Contra Costa Heating And Air Conditioning
★ 4.1
Above All Plumbing
★ 4.4
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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