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Green Air Heating And Air Conditioning vs Enterprise Roofing Service Inc

Contra Costa General Contractors Comparison · Updated March 2026

Quick Verdict

Enterprise Roofing is a materials supplier, not an installation contractor, while Green Air is a full-service HVAC and energy systems installer.

Green Air Heating And Air Conditioning: Green Air is an 18-year HVAC and solar energy contractor that installs complete systems, handling everything from furnace repairs to Tesla Powerwall integrations.
Enterprise Roofing Service Inc: Enterprise Roofing is a 62-year-old roofing materials supplier specializing in hard-to-find tiles and shingles, operating by appointment but not performing installations.
Note: Enterprise Roofing does not appear to offer installation services, making this comparison only relevant if you need roofing materials rather than actual roofing work.
Green Air Heating And Air Conditioning Enterprise Roofing Service Inc
Rating 4.6 4.7
Years Licensed 18 years 62 years
License # 916517 221274
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Concord, CA Concord, CA
Website www.gogreenair.net enterpriseroofing.com

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Key Differences

The critical difference is that these companies don't compete for the same work. Green Air performs installations—they'll come to your home, assess your HVAC needs, install equipment, handle permitting, and provide warranty service. Their 18 years of experience translates to hands-on project management for complex multi-system installations involving solar panels, battery storage, and HVAC integration. Enterprise Roofing, conversely, is where contractors or homeowners go to purchase roofing materials, particularly when matching existing tiles or finding discontinued products. Their 62 years in business reflects deep industry knowledge of roofing materials and supply chains, but customer reviews consistently describe them as a supplier requiring appointments, not a crew that shows up to install a roof. If you need a roof installed, you'd hire a roofing contractor who might then purchase materials from Enterprise. If you need HVAC or solar work, Green Air performs that service directly.

What Customers Say

Green Air Heating And Air Conditioning

Customers highlight Green Air's ability to handle complex multi-system installations with detailed explanations and responsive follow-up service.

Enterprise Roofing Service Inc

Customers consistently describe Enterprise Roofing as a helpful materials supplier with hard-to-find inventory rather than an installation contractor.

Key Takeaway: Green Air receives feedback about installation crews and project coordination, while Enterprise Roofing's reviews focus entirely on material sourcing and supplier service, reflecting their fundamentally different business models.

Customer Reviews

Green Air Heating And Air Conditioning

May 2025

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, ...

May 2025

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...

Apr 2025

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...

Enterprise Roofing Service Inc

Aug 2023

Great team, they were on time and ready to work. They were more concerned about the building than I was and that is refreshing

May 2023

Good place to find tiles replacements

Jul 2021

I needed tiles and they were very accomdating.

Consider Green Air Heating And Air Conditioning if...

  • You need actual installation work performed—HVAC repairs, system replacements, solar panel installation, or integrated energy solutions
  • Your project involves coordination between multiple systems like adding solar panels with battery storage to an existing HVAC setup
  • You want a single contractor responsible for the entire project from assessment through completion and warranty service
  • You value detailed explanations about how your energy systems work and want ongoing maintenance relationships
View full profile →

Consider Enterprise Roofing Service Inc if...

  • You're a homeowner or contractor who needs to purchase roofing materials, particularly vintage or discontinued tiles that match existing roofs
  • You're coordinating your own roofing project and need a reliable supplier with extensive inventory
  • You have a historic home requiring specialty materials that standard suppliers don't stock
  • You're willing to work by appointment and can handle or hire separately for the installation work
View full profile →

Questions to Ask Before Hiring

  • If contacting Enterprise Roofing: Confirm they do not provide installation services and ask for referrals to roofing contractors they recommend who use their materials
  • If contacting Green Air: Ask whether your project scope matches their expertise, as their focus is energy systems rather than roofing work
  • Clarify exactly what services you need—material supply, installation labor, or both—before proceeding with either company

The Bottom Line

This is not a meaningful comparison for most homeowners because these companies serve completely different functions. If you need HVAC work, solar panel installation, or integrated energy systems, contact Green Air—they're a legitimate installation contractor with nearly two decades of hands-on project experience. If you need roofing materials, especially hard-to-find vintage tiles, Enterprise Roofing is a specialized supplier with deep inventory knowledge. If you need a roof installed, neither company is your primary answer—hire a roofing installation contractor, who may then source materials from Enterprise if appropriate for your project.

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Frequently Asked Questions

Based on available information, Enterprise Roofing operates primarily as a materials supplier rather than an installation contractor. Their reviews consistently describe them as a source for purchasing tiles and shingles, not performing roofing installations. You would need to hire a separate roofing installation contractor who could then source materials from Enterprise if needed.

Green Air's documented projects include roof replacement in conjunction with solar panel installations, suggesting they handle roofing work related to their energy system installations. However, their primary expertise is HVAC and solar energy systems, not traditional roofing repairs or replacements unrelated to their core services. For standalone roofing work, a dedicated roofing contractor would be more appropriate.

Neither company is the right fit for straightforward roof leak repairs. Enterprise Roofing could supply replacement tiles if you or your contractor need materials, but they don't dispatch repair crews. Green Air focuses on HVAC and energy systems, not roofing repairs unless they're related to solar installations. You should contact a roofing installation and repair contractor directly.

Many materials suppliers maintain contractor licenses for various business reasons, including the ability to purchase materials at contractor pricing, perform limited installations when needed, or maintain historical business operations that have evolved over time. Enterprise's 62-year history suggests their business model may have shifted toward specialty supply over the decades while maintaining their licensing credentials.

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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 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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