Networx Pro

Legendary Restoration

Main Services: Roofing, Gutters, Siding, Windows, Flooring, additions and new construction.


A-1 Certified Contracting is a reputable business in Denver, CO, that has a roofer you can depend on for jobs of any size. All of our work adheres to local building codes and safety guidelines, and we'll match the manufacturer's warranty on materials. Our company is fully licensed, bonded, and insured for your protection. We hire only high-quality, full-time professionals.

We're a locally owned general contractor that strives to provide affordable solutions for homeowners in our community. In addition to precision roofing and siding projects, we offer home improvement services such as:

Home additions
Exterior renovations
Home renovations
Finding a reliable roofer in Colorado has never been easier since A-1 Certified Contracting opened its doors. If value, quality craftsmanship, and honest service are what you're looking for, contact our company today. Our office is open Monday - Friday, 8am - 5pm, and weekend consultation times are available, by appointment.

Service Area: Littleton, Lakewood

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