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Hassler Heating And Air Conditioning vs High Performance Heating & Air
Contra Costa HVAC Contractors Comparison · Updated March 2026
Both are veteran contractors with 23-26 years experience and identical insurance, but they serve different needs: Hassler for installations and replacements, High Performance for repairs and diagnostics.
| Hassler Heating And Air Conditioning | High Performance Heating & Air | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 26 years | 23 years |
| License # | 770180 | 821099 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | El Cerrito, CA | Concord, CA |
| Website | www.hasslerheating.com | highperformanceheatingandairconditioning.com |
Key Differences
What Customers Say
Hassler Heating And Air Conditioning
Customers consistently praise Hassler's systematic approach to installations and replacements, with emphasis on thorough inspections, photo documentation, and clear explanations throughout project completion.
High Performance Heating & Air
Customers frequently mention High Performance's diagnostic expertise and honest assessments, often noting they avoided expensive replacements recommended by other contractors through successful repairs at significantly lower costs.
Key Takeaway: Hassler's feedback centers on managing installation projects and documentation, while High Performance's reviews emphasize diagnostic problem-solving and finding repair solutions where others recommend replacement.
Customer Reviews
Hassler Heating And Air Conditioning
We had Hassler Heating & Air replace the ductwork under our house, and the experience was excellent from start to finish. The team was professional, punctual, and clearly knew what they were doing. Th...
Friendly, intelligent service. Thoroughly checked my heating system and showed in great detail what the problems are. The technician provided detailed inspection and we both agreed that it will be nec...
The crew was professional and courteous while being in my home which was very appreciated. Larry in particular was kind enough to answer my many questions to ensure I understood my new system so that ...
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 Hassler Heating And Air Conditioning if...
- ✓ You need a complete system replacement, major installation project like a heat pump conversion, or extensive ductwork replacement where project management and crew coordination matter.
- ✓ You value detailed documentation throughout the process, including photos and videos of work completed and system conditions.
- ✓ Your project involves newer technology installations or whole-home electrification where systematic installation processes are important.
- ✓ You prefer working with an established company structure that handles both routine maintenance and major installations through organized crews.
Consider High Performance Heating & Air if...
- ✓ You've received a replacement quote from another contractor but want a second opinion from someone known for finding repair solutions instead of pushing replacements.
- ✓ You need responsive service quickly, potentially same-day or next-day during an HVAC emergency or heat wave.
- ✓ You value direct owner involvement and want to work with someone who will troubleshoot your issue over the phone before scheduling a visit.
- ✓ Your system is older and you want a technician with deep diagnostic expertise who works with equipment ranging from brand new to 30+ years old.
Questions to Ask Before Hiring
- → For Hassler: What size crew typically handles installations, and will the same technicians who diagnose also complete the installation work?
- → For High Performance: As an owner-operated business, what is your typical response time during peak seasons, and do you have backup support if you're unavailable?
- → For both: Can you provide references from projects similar to mine in terms of scope and system age?
The Bottom Line
Both companies offer veteran-level expertise with identical insurance protection, making either a safe choice. Your decision should focus on project type rather than experience differences. Choose Hassler if you need a complete system replacement, major installation, or comprehensive project where documentation and systematic project management matter. Choose High Performance if you need diagnostic expertise, want a second opinion on a replacement recommendation, or value direct owner involvement and personalized service. If you're facing an expensive replacement quote, start with High Performance's diagnostic approach. If you're ready to proceed with a known installation project, Hassler's systematic process for major work makes them the better fit.
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Frequently Asked Questions
The three-year difference between 26 and 23 years is minimal when both are veteran contractors. At this experience level, operational focus matters more than the year difference. Hassler's additional years provide marginally more experience, but High Performance's 23 years still represents over two decades of continuous operation. Focus instead on which company's strengths match your project type.
This depends on whether you already know replacement is necessary. If another contractor diagnosed a failed system and you're ready to proceed with installation, Hassler's systematic approach to replacement projects makes them well-suited. If you're unsure whether replacement is truly needed, High Performance's diagnostic focus and track record of repairing systems others recommend replacing could save you significant money.
High Performance's high owner involvement means you'll likely work directly with the same person from phone call through completion, which provides continuity and access to their full diagnostic expertise. However, it also means scheduling depends on one person's availability. Hassler's company structure likely provides more flexibility in crew scheduling but less guarantee of working with the same technician throughout.
Both demonstrate responsiveness in customer feedback, with people mentioning quick service during heating emergencies. High Performance specifically receives feedback about same-day and next-day availability even during peak periods. For urgent diagnostic needs, High Performance's phone troubleshooting approach may get you initial guidance faster, while Hassler's crew structure may provide more scheduling flexibility for actual service visits.
Looking for the Best?
See our ranked list of top hvac contractors in Contra Costa.
Other Contra Costa HVAC Contractors Comparisons
Elite Comfort Systems
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California Heating And Cooling
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Hassler Heating And Air Conditioning
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California Heating And Cooling
★ 4.7
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 10, 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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