Direct Answer
The best commercial glass & curtain wall installation contractors in Miami are verified through Florida DBPR (myfloridalicense.com). Look for companies with 4.5+ Google stars, 50+ reviews, active FL license, and at least 5 years serving the Miami area.
Full Explanation
Verify any Miami contractor at Florida DBPR (myfloridalicense.com). Request proof of general liability insurance and workers' compensation. Ask for references from recent Miami projects — local experience matters for understanding permit requirements and area-specific challenges.
Local Factors in Miami
📍Verify license: Florida DBPR (myfloridalicense.com)
📍Miami city permit office issues local permits
📍Check BBB Greater Miami chapter
📍Require FL state license + local city license if applicable