The Staff of Drennen Custom Contractors - Northern Colorado's Radon Mitigation, Roofing and Remodeling Experts

Serving Northern Colorado
and Southern Wyoming
since 1973

Specializing in:


Radon Mitigation
Energy Star® Home Efficiency
Roofing Installation / Repair
Remodeling / Restoration


Office Location: 608 East Trilby
Fort Collins, CO 80525
Mailing: PO Box 272167
Fort Collins, CO 80527-2167

Phone: (970) 482-9100
Fax: (970) 266-9123

Drennen Custom Contractors has an A+ Rating with the Better Business Bureau.  Click here to see our rating listing.