Compare Local Pros
Green Air Heating And Air Conditioning vs High Performance Heating & Air
Contra Costa HVAC Contractors Comparison · Updated March 2026
Green Air specializes in complex energy system installations while High Performance focuses on expert HVAC diagnostics and repair at lower costs.
| Green Air Heating And Air Conditioning | High Performance Heating & Air | |
|---|---|---|
| Rating | ★ 4.6 | ★ 5.0 |
| Years Licensed | 18 years | 23 years |
| License # | 916517 | 821099 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Concord, CA |
| Website | www.gogreenair.net | highperformanceheatingandairconditioning.com |
Key Differences
What Customers Say
Green Air Heating And Air Conditioning
Customers highlight Green Air's capability with large-scale, multi-system projects combining solar, battery storage, and HVAC installations, with detailed explanations during complex coordinated work.
High Performance Heating & Air
Customers consistently mention High Performance's diagnostic expertise and honest assessments that resulted in successful repairs at significantly lower costs than replacement quotes from other contractors.
Key Takeaway: Green Air's feedback centers on managing complex installation projects with multiple integrated systems, while High Performance's reviews emphasize cost-effective diagnostic work that avoids unnecessary replacements through expert troubleshooting.
Customer Reviews
Green Air Heating And Air Conditioning
11 out of 10 stars! Green Air delivered on every level—comfort, sustainability, and pure happiness. We were struggling with a broken Dyvak system that left our home feeling stale, unevenly heated, ...
This review related to solar panels, battery storage, HVAC, and roof replacement (yes, crazily did all four). We decided last year to get a solar and battery backup due to frequent brownouts and blac...
I was at Lowe’s in Concord buying lumber and needed help in lowering the plywood from a high rack Mark of Green Air was also there to purchase the same plywood. We partnered up and managed to get th...
High Performance Heating & Air
My heater had intermittent problems with shutting down arbitrarily and not heating to the setting temperature. High performance Heating and Air showed up within 24 hours of my phone call. Patiently ex...
Very knowledgeable and trustworthy. I appreciate that he even tries to diagnose your problem and give you a few possible quick-fix options over the phone before scheduling a repair call. Will definite...
What immediately stands out about John is his immense depth and breadth of HVAC knowledge, his ability to recommend the right sized solution considering various factors, and his willingness to thoroug...
Consider Green Air Heating And Air Conditioning if...
- ✓ You're planning a solar panel installation and want to coordinate it with HVAC system replacement or upgrades in a single integrated project
- ✓ Your project involves battery storage systems like Tesla Powerwall that need to work with your heating and cooling equipment
- ✓ You're undertaking a comprehensive home energy efficiency overhaul that spans multiple systems and requires permitting coordination
- ✓ You value having one contractor manage ductwork replacement, HVAC installation, and renewable energy components together
Consider High Performance Heating & Air if...
- ✓ Your primary need is diagnosing why your current HVAC system isn't working properly before committing to replacement
- ✓ Another contractor has quoted you for full system replacement and you want a second opinion from someone known for successful repairs
- ✓ You want an owner-operated service with phone accessibility for troubleshooting guidance before scheduling paid visits
- ✓ Your system is older and you need a contractor with 23 years of experience working on equipment ranging from legacy units to modern installations
Questions to Ask Before Hiring
- → Ask Green Air how they coordinate timelines and permitting between solar installation and HVAC work, and whether delays in one system affect the other
- → Ask High Performance about their availability for emergency repairs during peak seasons and whether diagnostic fees apply if you proceed with recommended repairs
- → If you're considering solar but unsure about timing, ask both companies whether it makes sense to replace HVAC now or coordinate with future solar installation
The Bottom Line
Choose based on your actual project scope. If you're installing solar panels, battery storage, or want to coordinate renewable energy with HVAC replacement, Green Air has demonstrated expertise in these integrated installations that High Performance doesn't offer. If your need is HVAC-only—particularly repair, diagnostics, or getting a second opinion on whether your system truly needs replacement—High Performance's specialized focus, 23 years of experience, and consistent pattern of successful cost-effective repairs make them the better fit. Don't pay for solar integration expertise if you're not integrating solar, and don't use a general energy solutions provider if you need focused HVAC diagnostic work.
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Frequently Asked Questions
Yes, Green Air performs traditional HVAC services including repairs, maintenance, and system replacements without solar components. However, their review feedback and project portfolio emphasize multi-system installations, suggesting their business model may prioritize larger integrated projects. If you only need HVAC work, ask about their current availability and whether they typically schedule standalone HVAC jobs.
High Performance specializes exclusively in heating and air conditioning services. Their licensing and business focus do not include solar panel installation or battery storage systems. If you need renewable energy integration, you would need to hire a separate solar contractor or choose a company like Green Air that handles both.
High Performance has a strong pattern of customers who avoided replacements through successful diagnostic work and repairs, with review feedback specifically mentioning significantly lower costs than replacement quotes from other contractors. Their phone troubleshooting approach before scheduling visits and 23 years of experience with aging equipment make them well-suited for honest repair-versus-replace assessments.
High Performance's additional 5 years of licensing (23 versus 18) represents meaningful exposure to more equipment generations and problem scenarios, particularly valuable when diagnosing issues in older systems. Both companies are veterans with extensive experience, but that extra time in the field translates to encountering more unusual failures and legacy equipment. For complex new installations involving solar integration, Green Air's 18 years is entirely sufficient and their multi-system project experience is more relevant.
Looking for the Best?
See our ranked list of top hvac contractors in Contra Costa.
Other Contra Costa HVAC Contractors Comparisons
Hassler Heating And Air Conditioning
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California Heating And Cooling
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★ 5.0
Contra Costa Climate Control
★ 5.0
High Performance Heating & Air
★ 5.0
Got Watts?
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High Performance Heating & Air
★ 5.0
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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