Compare Local Pros
Indoor Air Technologies vs Marasigan Heating And Air
Solano HVAC Contractors Comparison · Updated March 2026
Two similarly licensed HVAC contractors with different service strengths: Indoor Air Technologies brings specialized air quality expertise while Marasigan offers faster response times.
| Indoor Air Technologies | Marasigan Heating And Air | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 6 years | 5 years |
| License # | 1060955 | 1074318 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Fairfield, CA | Fairfield, CA |
| Website | iat-hvac.com | www.marasiganhvac.com |
Key Differences
What Customers Say
Indoor Air Technologies
Customers emphasize Indoor Air Technologies' technical expertise with specialized air quality systems and the owner's direct involvement in solving complex HVAC challenges.
Marasigan Heating And Air
Customers consistently highlight Marasigan's operational responsiveness including same-day service, proactive phone troubleshooting, and communication through messaging that keeps them informed.
Key Takeaway: Indoor Air Technologies earns recognition for technical depth with uncommon equipment, while Marasigan builds its reputation on speed and accessibility for urgent service needs.
Customer Reviews
Indoor Air Technologies
I was looking to improve indoor air quality in my home. I called several companies to find out about HRV/ERV's. IAT was the only company that knew what I was looking for. He did a great job on the ins...
My name is Rick Rosa and I reside in Napa Ca. I am about 4 months late in writing this review for the incredible job that the owner Andrew Meeks and his very competent crew of Jesus and Omar did in in...
Awesome service & great professionalism! Would definitely recommend!
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...
Consider Indoor Air Technologies if...
- ✓ Your project involves indoor air quality systems beyond basic HVAC, including heat recovery ventilators, energy recovery ventilators, or specialized air purification equipment that requires technical expertise most contractors don't possess
- ✓ You value direct owner involvement in technical problem-solving and appreciate contractors who can diagnose and address less common HVAC challenges
- ✓ Fair pricing across various project types is a priority, and you're willing to schedule around availability rather than requiring same-day emergency response
- ✓ You have air quality concerns related to ventilation, humidity control, or energy efficiency that require more than a standard heating and cooling solution
Consider Marasigan Heating And Air if...
- ✓ You need service today or require emergency response capabilities, as Marasigan has demonstrated consistent same-day service and flexible scheduling for urgent situations
- ✓ Clear communication and ongoing updates matter to you, particularly through text messaging and phone contact that keeps you informed throughout the service process
- ✓ You'd appreciate phone-based troubleshooting first, potentially resolving simpler issues without a service call and the associated cost
- ✓ Punctuality and reliable arrival times are important, especially if you're coordinating around work schedules or other commitments
Questions to Ask Before Hiring
- → If considering Indoor Air Technologies for specialized air quality work, ask for references from customers with similar HRV/ERV or advanced ventilation installations to confirm their expertise matches your project needs
- → If choosing Marasigan for emergency service, clarify their typical response time for same-day calls and whether there are additional fees for urgent scheduling
- → Ask both companies about their diagnostic process and whether they charge a flat service call fee or apply it toward repair costs if you proceed with work
The Bottom Line
Both contractors are legitimate, experienced choices with identical credentials and solid customer satisfaction. Your decision should focus on what your project actually needs this week. Choose Indoor Air Technologies if your work involves specialized indoor air quality systems like HRV/ERV units, or if you have complex ventilation challenges that require technical expertise beyond standard HVAC work—they've demonstrated capabilities other contractors don't have. Choose Marasigan Heating And Air if you need someone today, value responsive communication with ongoing updates, or appreciate the convenience of phone troubleshooting that might solve your problem without a service visit. For straightforward heating and cooling repairs or installations, either company will serve you well, so let timing and availability make your decision.
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Frequently Asked Questions
For standard HVAC repairs and installations, the gap between five and six years is minimal—both companies are well past the startup phase and have demonstrated stability. The licensing difference becomes less relevant than their different service strengths. If you need specialized air quality equipment, Indoor Air Technologies' documented expertise matters more than the extra year. If you need fast response, Marasigan's operational model matters more than slightly longer tenure.
Marasigan Heating And Air has established a clear pattern of same-day response and flexible emergency scheduling based on customer feedback. Multiple customers specifically mentioned getting service the same day they called during urgent situations. Indoor Air Technologies receives positive reviews but doesn't have the same documented emphasis on emergency response speed. If your system has failed and you need someone today, Marasigan's track record is stronger for rapid response.
Indoor Air Technologies has documented expertise with specialized systems like heat recovery and energy recovery ventilators that one customer noted other contractors wouldn't service. This suggests stronger capabilities for uncommon equipment or complex air quality solutions. Marasigan demonstrates thorough diagnostic abilities for standard HVAC systems, including successful replacements of decades-old equipment. For conventional heating and cooling work, both are capable; for specialized air quality systems, Indoor Air Technologies shows clearer expertise.
Indoor Air Technologies receives specific recognition for fair pricing across different types of work. Marasigan's value proposition centers more on convenience and communication rather than explicit pricing advantages. However, Marasigan's phone troubleshooting approach sometimes resolves issues without requiring a paid service visit, which can save money on simpler problems. Ask both for detailed quotes and clarify all fees upfront, including service call charges and emergency premiums.
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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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