Northstar Fireplace Services, could be the healthiest home improvement you'll ever make. The National Fire Protection Association (NFPA) recommends an annual chimney inspection to all property owners. Chimney restoration service "Chimney Sweeping" as it's more properly known - is a process in which our chimney sweep technicians use high-powered vacuums and specialized chimney brushes on extending rods to physically scrub and clean the inside of the chimney to dislodge and remove dangerous and flammable creosote, built-up soot, and other debris. Air Duct Sanitization: Have your air ducts sanitized with the most advanced technology cleaning and removal equipment available. Indoor air pollution can cause or aggravate a variety of health problems from headaches and sinus irritation to allergies and asthma. Your heating or cooling system furnace can spread the dust, dirt, pollen, animal dander and other contaminants that collect in your duct work into your homes air.