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Enterprise Roofing Service Inc vs Hassler Heating And Air Conditioning
Contra Costa General Contractors Comparison · Updated March 2026
You're comparing a roofing materials supplier with an HVAC contractor—these companies serve completely different needs and shouldn't be directly compared.
| Enterprise Roofing Service Inc | Hassler Heating And Air Conditioning | |
|---|---|---|
| Rating | ★ 4.7 | ★ 4.9 |
| Years Licensed | 62 years | 26 years |
| License # | 221274 | 770180 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | El Cerrito, CA |
| Website | enterpriseroofing.com | www.hasslerheating.com |
Key Differences
What Customers Say
Enterprise Roofing Service Inc
Customers value Enterprise's ability to source discontinued and vintage roofing materials unavailable elsewhere, with helpful staff assisting in material matching and efficient delivery service.
Hassler Heating And Air Conditioning
Customers consistently praise Hassler's thorough diagnostic process with photo documentation, detailed explanations of system conditions, and responsive scheduling for both emergencies and planned replacements.
Key Takeaway: Enterprise receives feedback focused entirely on materials inventory and sourcing capabilities, while Hassler's reviews emphasize technical expertise and communication throughout service delivery—reflecting their fundamentally different business models.
Customer Reviews
Enterprise Roofing Service Inc
Great team, they were on time and ready to work. They were more concerned about the building than I was and that is refreshing
Good place to find tiles replacements
I needed tiles and they were very accomdating.
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 Enterprise Roofing Service Inc if...
- ✓ You need to source specific roofing tiles or shingles to match an existing older roof with discontinued materials
- ✓ You're a contractor looking for a supplier with extensive vintage roofing inventory in the Bay Area
- ✓ You have a small tile replacement project and need hard-to-find materials rather than full installation services
- ✓ You're willing to work by appointment and primarily need materials expertise rather than labor
Consider Hassler Heating And Air Conditioning if...
- ✓ You need heating or cooling system installation, repair, or replacement work
- ✓ You want detailed diagnostic assessments with photo and video documentation of system conditions
- ✓ You need responsive service for HVAC emergencies or system failures
- ✓ You're planning home electrification projects like heat pump conversions or ductwork upgrades
Questions to Ask Before Hiring
- → If contacting Enterprise Roofing, clarify whether they provide installation services or only materials, and ask for installer referrals if needed
- → If you need both roofing materials and installation, ask Enterprise which contractors they recommend who are experienced with their vintage tile inventory
- → If contacting Hassler for a major system replacement, ask about their warranty coverage and maintenance program options
- → For either company, confirm current scheduling availability since Enterprise requires appointments and Hassler's responsiveness may vary seasonally
The Bottom Line
This comparison doesn't provide useful decision-making guidance because these companies serve completely different needs. Contact Enterprise Roofing Service Inc if you need hard-to-find roofing tiles or shingles—their 62 years of operation and specialized vintage inventory make them a unique Bay Area resource for materials. Contact Hassler Heating And Air Conditioning if you need heating, cooling, or ventilation system work—their 26 years of HVAC experience, thorough diagnostic approach, and responsive service address those needs effectively. If you're planning projects requiring both roofing materials and HVAC work, you'll likely need both companies for their respective specialties.
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Frequently Asked Questions
The data indicates Enterprise primarily operates as a materials supplier rather than an installation contractor. While they hold a roofing license, customer feedback focuses exclusively on their inventory and materials expertise. You should ask directly whether they provide installation services or can recommend experienced installers familiar with their vintage materials.
This comparison only makes sense if you have separate roofing and HVAC needs, or if you mistakenly thought Enterprise provides roofing installation. These companies serve completely different purposes—one supplies materials while the other installs mechanical systems. They're not competing alternatives for the same project.
HVAC contractors typically handle attic ventilation fans and related airflow systems that affect heating and cooling efficiency. However, structural roof vents and roofing-integrated ventilation would fall outside their scope. Ask Hassler directly about your specific ventilation concern to determine if it's within their HVAC expertise.
For comprehensive renovations, you'd likely need both if your project includes roofing material replacement and HVAC system updates. Contact Hassler for mechanical system assessments and Enterprise if you need specialized roofing materials. Neither would serve as a general contractor coordinating across trades.
Looking for the Best?
See our ranked list of top general contractors in Contra Costa.
Other Contra Costa General Contractors Comparisons
Apollo Roofing Company
★ 5.0
Hassler Heating And Air Conditioning
★ 4.9
Got Watts?
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Hassler Heating And Air Conditioning
★ 4.9
Bay Valley Roofing & Solar
★ 4.8
Hassler Heating And Air Conditioning
★ 4.9
High Definition Solar
★ 4.1
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 11, 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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