About US

Welcome to Drennen Custom Contracting, your trusted partner in radon mitigation, roofing, and remodeling services in Northern Colorado. With a legacy dating back to 1973, we have been dedicated to serving our community with excellence and integrity for decades.

At the helm of our company is Arnold Drennen, the founder and owner of Drennen Custom Contracting. Arnold's passion for quality craftsmanship and commitment to customer satisfaction has been the driving force behind our success. As a small, family-run business, we understand the value of personal connections and take pride in treating every client like a member of our own family.

Our team brings together years of expertise and a deep understanding of the unique challenges and needs of the Northern Colorado region. Whether you're looking to safeguard your home from radon exposure, enhance its curb appeal with a new roof, or transform your living space through remodeling, we are here to exceed your expectations.

At Drennen Custom Contracting, we believe in doing things right the first time. We prioritize transparency, communication, and professionalism in every project we undertake. From the initial consultation to the final finishing touches, you can trust us to deliver exceptional results that stand the test of time.

Thank you for considering Drennen Custom Contracting for your radon, roofing, and remodeling needs. We look forward to the opportunity to earn your trust and become your go-to partner for all your home projects.