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Marasigan Heating And Air vs North Bay Air Systems
Solano HVAC Contractors Comparison · Updated March 2026
North Bay Air Systems brings 49 years of licensed experience versus Marasigan's 5 years, a significant advantage for complex diagnostics and system longevity concerns.
| Marasigan Heating And Air | North Bay Air Systems | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 5 years | 49 years |
| License # | 1074318 | 325637 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Fairfield, CA | Fairfield, CA |
| Website | www.marasiganhvac.com | www.northbayairsystemsinc.com |
Key Differences
What Customers Say
Marasigan Heating And Air
Customers emphasize Marasigan's responsive communication including phone-based troubleshooting that sometimes resolves issues remotely, along with flexible same-day scheduling and clear explanations during service visits.
North Bay Air Systems
North Bay receives consistent feedback on technical knowledge and fair pricing without upselling, with several customers mentioning relationships spanning 17+ years indicating long-term satisfaction and repeat business.
Key Takeaway: While both companies receive praise for responsiveness and communication, North Bay's reviews highlight technical expertise and long-term customer retention, whereas Marasigan's emphasize accessibility and proactive troubleshooting support.
Customer Reviews
Marasigan Heating And Air
I was having issues with our furnace that wasn't heating up our house. Symond was able to schedule a time that fit both our schedules, arrived on time, and was very thorough. Symond was knowledgeable,...
Called them up for thermostat issue in a home we just moved into. He walked me through a couple of quick fixes and one of them worked! Save both of us time, and save me a bit of money. Friendly guy...
Symond was very helpful and knowledgeable. He walked my husband through some trouble shooting and knew exactly what the problem was. When he realized a part wouldn't come until next week, he sourced i...
North Bay Air Systems
Eddy is extremely knowledgeable in identifying the root cause when trouble shooting the HVAC thermostat. Provided specifics of what exactly needs to be repaired and also recommended preventative meas...
Eddy was very professional and knowledgeable. The communication was excellent too. Appreciate the service very much
Anthony was a true professional. I could not be happier
Consider Marasigan Heating And Air if...
- ✓ Your HVAC need is straightforward: a clearly failed component, a standard replacement on a common system, or routine maintenance where five years of experience is fully adequate.
- ✓ You value the direct attention that often comes with a newer company still building its customer base, particularly if you appreciate Marasigan's phone-based troubleshooting approach that sometimes resolves issues without a truck roll.
- ✓ Scheduling flexibility and rapid response matter most to you, and Marasigan's feedback suggests strong performance in same-day service and accommodation of urgent requests.
Consider North Bay Air Systems if...
- ✓ Your system is older (15+ years) and you need guidance on whether repair or replacement makes financial sense, a decision where North Bay's 49 years of seeing equipment lifecycles provides valuable perspective.
- ✓ Your home has a complex or less common setup like multi-zone systems, dual-fuel heat pumps, or commercial-grade equipment where deep technical knowledge matters more than standard residential work.
- ✓ You're dealing with an intermittent problem that's hard to diagnose, where pattern recognition from thousands of past service calls gives North Bay a clear advantage in troubleshooting efficiency.
- ✓ You value the stability of a company that's maintained operations and customer relationships across decades, suggesting reliable warranty support and continued availability for future service.
Questions to Ask Before Hiring
- → For Marasigan: Ask how they handle diagnostic challenges outside their direct experience, whether they consult with manufacturer technical support, and what their approach is when facing an unfamiliar system configuration.
- → For North Bay: Ask which specific technician would handle your job and how long they've been with the company, since 49 years of business doesn't guarantee every current technician has extensive experience.
- → For both: Ask for references from projects similar to yours in scope and system type, particularly if you have a dual-fuel, zoned, or other non-standard configuration.
The Bottom Line
For standard HVAC repairs, routine maintenance, or straightforward replacements on common residential systems, both companies are properly credentialed and receive positive customer feedback—Marasigan may offer a cost advantage while delivering competent service. However, if your system is aging and you need guidance on repair-versus-replace decisions, if you have complex or multi-zone configurations, or if you're facing difficult diagnostic challenges, North Bay Air Systems' 49 years of licensed operation provides meaningfully deeper expertise. The experience gap isn't about basic competency—it's about pattern recognition, judgment on borderline decisions, and technical knowledge accumulated across five decades of HVAC evolution. Get quotes from both, but weight North Bay's experience heavily if your situation is anything beyond routine.
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Frequently Asked Questions
Yes, five years is adequate for routine repairs, standard replacements, and common diagnostic work on residential systems. The experience gap matters most for complex troubleshooting, guidance on aging equipment decisions, and uncommon system configurations. If your need is straightforward, Marasigan's five years provides competent service at what may be a more competitive price point.
No, a company's operational history doesn't guarantee individual technician tenure. It does mean the business has institutional knowledge, established diagnostic protocols, and experience training technicians across different equipment generations. Ask specifically about the technician who would handle your job and their individual experience level.
Yes, because responsiveness gets you a technician to your home quickly, but experience determines how efficiently they diagnose problems and whether their repair-versus-replace guidance is sound. Both companies handle customer service well; the difference is technical depth when facing non-routine situations or advising on significant financial decisions.
Not necessarily—North Bay's reviews specifically mention fair pricing without upselling. However, you should get quotes from both companies for your specific project. More established companies sometimes have higher overhead, but they may also have better supplier relationships that offset labor costs.
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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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