Compare Local Pros
Grace Heating And Air vs Hassler Heating And Air Conditioning
Contra Costa HVAC Contractors Comparison · Updated March 2026
Grace Heating And Air brings five additional years of licensing history with highly accessible owner involvement, while Hassler offers more systematic diagnostic documentation.
| Grace Heating And Air | Hassler Heating And Air Conditioning | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.9 |
| Years Licensed | 31 years | 26 years |
| License # | 705148 | 770180 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | El Cerrito, CA |
| Website | graceheatingandairinc.com | www.hasslerheating.com |
Key Differences
What Customers Say
Grace Heating And Air
Customers consistently highlight the owner's direct involvement and accessibility, emphasizing personal communication and hands-on participation throughout their HVAC projects.
Hassler Heating And Air Conditioning
Customers repeatedly mention thorough diagnostic processes with photo and video documentation, appreciating the systematic approach to explaining technical findings.
Key Takeaway: Grace distinguishes itself through high owner involvement and personal relationships, while Hassler stands out for documented diagnostic processes and visual evidence of system conditions.
Customer Reviews
Grace Heating And Air
Thankful to Derrick Easton owner of GraceHVAC and team replaced my mom's inoperable a/c and heater. We know the original owners Bob&Sherri Dickson for over 35 years, they retired, all owners reliable,...
As a physician, my schedule is demanding, and I greatly value professionalism, punctuality, and clear communication-qualities that Derrick Easton, Owner of Grace Heating and Air displayed from start t...
Bob, Derrick, and their team provided excellent service at a fair cost. They were personable, professional, and knowledgeable. I would recommend them to anyone for their heating and cooling needs.
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 ...
Consider Grace Heating And Air if...
- ✓ You value direct access to the owner and want the decision-maker present during your project rather than working through layers of staff
- ✓ Your HVAC system is 30+ years old and you want a contractor whose experience spans the entire lifecycle of older equipment common in your home
- ✓ You prefer a relationship-focused contractor where you'll work with the same person from estimate through completion
- ✓ You're located in Walnut Creek or central Contra Costa County and want the shortest response time for emergency service calls
Consider Hassler Heating And Air Conditioning if...
- ✓ You want detailed visual documentation of your system's condition with photos and videos you can review or share with family members helping with decisions
- ✓ You're considering a heat pump conversion or ductwork replacement and want a contractor known for systematic inspection of multiple system components
- ✓ You appreciate technicians who take extra time explaining findings and showing you exactly what they're seeing during diagnostics
- ✓ You're in El Cerrito or western Contra Costa County and prioritize geographic proximity for warranty callbacks and future maintenance
Questions to Ask Before Hiring
- → Ask Grace whether the owner will personally handle your project or if you'll work with technicians, given the high owner involvement noted in reviews
- → Ask Hassler what their typical diagnostic process includes and whether photo documentation is standard for your type of project
- → Request references from both companies for projects similar to yours in scope, especially if you're doing a full system replacement or home electrification
- → Ask both contractors how they handle unexpected complications discovered during installation and who has authority to make decisions on-site
The Bottom Line
Both companies offer solid veteran experience with full compliance and equivalent financial protection. Choose Grace Heating And Air if you prioritize direct owner involvement and want the person making decisions present at your project, particularly valuable for homes in Walnut Creek or if you prefer relationship-focused service. Choose Hassler Heating And Air Conditioning if you value systematic inspections with photo documentation and are considering complex projects like heat pump conversions where their demonstrated experience is evident. The five-year licensing difference matters less than matching your preference for service style—personal owner accessibility versus documented diagnostic thoroughness. Either contractor can competently handle your residential HVAC needs.
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Frequently Asked Questions
Both companies qualify as veteran contractors with deep experience, so either can competently handle standard residential HVAC work. The 31-year versus 26-year distinction becomes relevant primarily if you have an older home with legacy equipment or unusual complications where Grace's additional years might provide slightly more exposure to rare situations. For typical furnace replacements, AC installations, or routine repairs, both have equivalent technical capability.
Hassler's customers specifically mention receiving photos and videos as part of their diagnostic process, making this a defining characteristic of their service approach. Grace's customers emphasize direct owner communication and clear explanations but don't mention visual documentation as frequently. If having photographic evidence matters to you, confirm this specifically when scheduling with Grace, or choose Hassler where it appears standard practice.
Both companies receive positive feedback for responsive scheduling and quick service during urgent situations. Grace's customers note fast response times, while Hassler's customers mention quick service during heating emergencies. Your geographic location may matter more than company policy—Grace operates from Walnut Creek and Hassler from El Cerrito, so choose the company closer to your home for potentially faster arrival during emergencies.
Hassler's customer feedback specifically mentions heat pump installations, ductwork replacement, and home electrification projects, suggesting visible experience with these complex conversions. Grace handles full system replacements but customer reviews focus more on standard heating and cooling installations. If you're doing a heat pump conversion or major ductwork overhaul, Hassler shows clearer evidence of recent experience with these specific project types.
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
★ 4.9
High Performance Heating & Air
★ 5.0
Clean Air HVAC
★ 4.8
Hassler Heating And Air Conditioning
★ 4.9
Elite Comfort Systems
★ 5.0
Hassler Heating And Air Conditioning
★ 4.9
California Heating And Cooling
★ 4.7
Hassler Heating And Air Conditioning
★ 4.9
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 13, 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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