To protect your investment and ensure a high-quality result, you should vet a window contractor thoroughly before signing any contract. Key questions to ask include:

• Are you licensed in Colorado? You should verify this information through the Colorado Department of Regulatory Agencies (DORA).
• Do you carry liability insurance and workers’ compensation coverage? This protects you from liability during the project.
• Can you provide references? Ask for recent window projects completed specifically in your local area, such as Centennial.
• What is the proposed timeline? Inquire how they handle potential delays caused by weather or material availability.
• How do you protect my property? Ask about their process for interior and exterior protection and what post-installation cleanup services are included.
• Do you warranty your workmanship separately? Ensure you understand the difference between the manufacturer’s product warranty and the contractor’s labor warranty.
• What happens if unexpected issues are discovered? Ask how they handle structural damage or hidden issues found after the old windows are removed.
• Do you handle permitting? Confirm if they will obtain the necessary building permits from the local city office and schedule required inspections.

• Ultimate Window Installation Checklist for Homeowners in Centennial