Since 2015, Lumberjack HVAC has been the go-to furnace company for residents of Thornton, CO. Every furnace technician on our team strives to provide the best service possible and maintain a 100% customer satisfaction guarantee. Regardless of which brand of furnace you have in Adams County, you can rest assured that our skilled technicians can service it. We’re proud to maintain an A+ rating with the Better Business Bureau and be an EPA-certified business. All of our technicians are NATE-certified, too.