MGG Chimney Sweep with 25 Years Experience and We Have Wett Certified Technician to Serve You. We Will Make Sure Your Chimney is Safe to Use on Each Cleaning. We Offer Full Installation of Wood Burning Appliances. MGG Chimney Sweep has been keeping homes and families safe and warm by providing great quality service, for their wood-burning fireplaces, wood stoves, and inserts, for a great price. Free estimates, guaranteed work, and spotless clean up, are services that you can expect. Proudly serving the Mississauga, Brampton, Etobicoke, Caledon, Georgetown, Orangeville, Bolton, Oakville, Simcoe, Maple, Milton, and Woodbridge for over 20 years.