Alpine Air Duct Cleaning is NADCA Certified by the National Air Duct Cleaners Association.Alpine Group is a top rated company on Angie's List. Check out our customers' ratings and reports.We Provide Mold Inspection, Sampling & Remediation. Odor Elimination. Crawl Space Water Proofing & Encapsulation. Radon MitigationServing Indianapolis, Fishers, Carmel, Geist, Noblesville, Brownsburg, Greenwood, Lawrence, Greenfield, Broadripple, Zionsville, Plainfield and surrounding counties.