Compare Local Pros
All About Air vs Mihas HVAC
Alameda HVAC Contractors Comparison · Updated March 2026
All About Air brings 18 years of licensed experience versus Mihas HVAC's limited licensing history, a meaningful difference for complex HVAC projects.
| All About Air | Mihas HVAC | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 18 years | 0 years |
| License # | 902777 | 1149214 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Hayward, CA | Oakland, CA |
| Website | allaboutaironline.com | mihashvac.com |
Key Differences
What Customers Say
All About Air
Customers emphasize All About Air's same-day emergency response, clear communication throughout service calls, and multi-year relationships with repeat customers across multiple properties.
Mihas HVAC
Mihas HVAC receives consistent praise for honest diagnostics that avoid unnecessary replacements, prompt arrival times, and thorough explanations of repair options.
Key Takeaway: All About Air is recognized for long-term customer relationships spanning years and generations, while Mihas HVAC stands out specifically for diagnostic honesty and not overselling equipment replacements.
Customer Reviews
All About Air
Chris is always a pleasure to work with, and we have had him come to the house now for quite a few years.
Another great maintenance job.
Love the family owned business All About Air. Over the years I have used their services in 2 homes. They installed new AC & heaters and continue to do annual check up services. Christine (wife/owner)a...
Mihas HVAC
I reached out to Michael as my home heating was not working during a very cold winter, and he was prompt with the initial diagnosis that I needed to replace my entire system (it was very old and poorl...
Big thanks to Michael for the fast and professional repair of our gas furnace. He arrived on time, quickly diagnosed the issue, and explained everything clearly. The work was done neatly, and he provi...
Michael did a great job on my HVAC as well as my heat pump system. Neat clean. My area looks like new. Highly recommend him.
Consider All About Air if...
- ✓ Your home is older with original HVAC infrastructure that may hide complications like undersized ducts, asbestos concerns, or outdated electrical connections that require experienced troubleshooting.
- ✓ You value established business continuity for warranty support and future service calls, with 18 years indicating the company will likely be available for callback needs.
- ✓ Same-day emergency service is important, particularly if you're facing extreme weather and need urgent furnace or AC repairs.
- ✓ You prefer working with a contractor whose reputation spans nearly two decades in your specific community.
Consider Mihas HVAC if...
- ✓ You're in Oakland or nearby areas where local response time matters, and appreciate a contractor based directly in your city.
- ✓ You've verified their licensing timeline and credentials directly and are comfortable with their operational history.
- ✓ You value diagnostic honesty and want a contractor praised specifically for not pushing unnecessary equipment replacements.
- ✓ Your project is straightforward with modern infrastructure where extensive troubleshooting experience is less critical.
Questions to Ask Before Hiring
- → Ask Mihas HVAC directly how long they've operated under their current license and request references from projects completed over the past few years to verify operational timeline.
- → Ask both companies how they handle unexpected complications during installation, such as discovering code violations or incompatible ductwork, and whether their estimates include contingency provisions.
- → For Mihas HVAC specifically, ask about warranty terms and how long-term service callbacks are handled given the limited documented business history.
- → Ask All About Air about their current crew stability and whether the same technicians who do estimates also complete installations.
The Bottom Line
All About Air is the clearer choice for most homeowners, particularly those with older homes, complex installations, or anyone who values established business continuity for long-term warranty support. The 18-year track record provides meaningful protection against complications that arise during HVAC projects in East Bay homes. Mihas HVAC earns positive feedback for honest service and quality work, but the zero-year licensing record requires direct verification before proceeding. If you're considering Mihas HVAC, confirm their operational timeline, request multi-year references, and ensure your project is straightforward enough that extensive troubleshooting experience isn't critical. For most situations involving significant investment in HVAC systems, All About Air's documented veteran experience provides greater confidence.
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Frequently Asked Questions
For truly straightforward replacements in newer homes with compliant infrastructure, the gap matters less. However, most HVAC projects in Bay Area homes built before 2000 uncover unexpected issues like undersized ducts, improper venting, or electrical mismatches. An 18-year contractor has encountered these complications hundreds of times and can adapt quickly without costly delays or change orders.
This could indicate recent licensing under a new business structure, incomplete public records, or operation under a different license previously. This discrepancy is exactly why homeowners should ask Mihas HVAC directly about their operational timeline and request verifiable references spanning multiple years. Positive reviews exist, but the licensing gap requires clarification before signing contracts.
Workers comp and bonds protect against specific risks like injuries or contract abandonment, but they don't protect against inexperienced installation mistakes that only surface months later. An experienced contractor is less likely to create airflow problems, incorrect refrigerant charges, or ductwork issues that reduce system efficiency and lifespan. Prevention matters more than insurance coverage after problems develop.
Possibly, especially if they bring specialized training in newer technologies like heat pumps or employ experienced technicians from other companies. Mihas HVAC's reviews praise honest diagnostics and neat work, which are valuable traits. However, business stability and multi-year warranty support favor established contractors. If choosing Mihas HVAC, verify their operational history and consider projects where straightforward execution matters more than extensive troubleshooting experience.
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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 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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