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About Chimney & Fireplace Guys

Hailing From a Family of Sweeps

Established in 1997 and building on 20 years of chimney cleaning services, our family-owned and operated company is in its third generation of chimney sweeps. Some of our employees have been working on chimneys since they were 6 years old.

We are licensed in the state of Michigan and are members of a range of professional organizations.
  • National Chimney Sweep Guild
  • Chimney Professionals of America Certification
  • National Fireplace Institute
  • Local Chamber of Commerce
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John M Dennis Jr - Owner and Operator

  • Residential Builders, Maintenance and Alteration License - State of Michigan
  • Former building trades instructor for the Department of Justice Federal Bureau of Prisons
  • 23 years of experience as a chimney sweep and hearth professional
  • Dual certifications as a master chimney sweep and chimney reliner
  • Lyndsey-Cooper Heating Venting Air Conditioning School - Irving, TX
  • Skilled trades journeyman plumber
  • Skilled trades journeyman HVAC and pipefitter
  • Northwest Technical College graduate in masonry and masonry restoration
  • Jackson College – Applied Science degree
  • Michigan State Construction Management Degree program
  • Spring Arbor College
  • Christian Leadership 
  • Life Coach Training
  • Husband of Mary Ann Dennis for 20 years
  • Father of four boys
  • Enjoys community service, sports activities with his sons, coaching, camping, kayaking, fishing, and hunting 
  • Volunteer youth minister - works with young men as a life coach and mentor in a church setting
  • U.S. Navy veteran

Mary Ann Dennis - Office Manager

  • 19 years of experience as the office manager
  • Certified chimney professional
  • Siena Heights University - BSN
  • Award-winning wife of John for 20 years
  • Award-winning mother of their four boys
  • Enjoys community service, sports with her boys, running, camping, fishing, and kayaking
  • Volunteer youth leader - works with young women as a life coach and mentor in a church setting

Melody Kennedy - Customer Service Manager

  • Owners' sister in Christ and good friend since elementary school days at St. John’s Parochial School.
  • Customers favorite voice behind the phone
  • 15+ years experience in the customer service management industry
  • Enjoys community service and volunteering at her local church
  • Enjoys being on the lake and her large extended family

Brian Dennis - Master Chimney Sweep and Installer

  • Owner's brother
  • Customer favorite choice for customer service professionalism 
  • 19 years of experience as a chimney sweep and hearth professional
  • Dual certifications as a certified chimney professional and chimney reliner
  • Masonry restoration certificate
  • Skilled trades journeyman in carpentry, masonry and pipefitting

Mike Dennis - Parts and Material Manager

  • Owner's father
  • 50+ years of experience as a diversified skilled trades professional
  • 39 years of experience as a chimney sweep and supplemental heat specialist
  • Enjoys spending his time with the grandkids, fishing, hunting, kayaking, ATVing, and snowmobiling in Northern Michigan
  • U.S. Navy Vietnam veteran

Jaimie Guthrie - Chimney Sweep, Service and Installation Technician

  • Owner's cousin
  • 4 years of experience in the hearth industry 
  • Certified chimney professional and mason
  • Enjoys spending time with his children, outdoor activities, musicians, and serving his community
  • U.S. Navy veteran

Doug Thompson - Service and Installation Manager

  • Owner's brother in Christ
  • 30 years of experience in the construction trades
  • Certified chimney professional and mason
  • Enjoys community service, sports activities with his sons and daughter, coaching, camping, kayaking, fishing, and hunting

Samuel Dennis - 4th-Year Chimney Sweep Apprentice

  • Third-generation chimney sweep
  • John Jr’s eldest son
  • Enjoys serving his community, outdoor activities, and working outdoors

Mark Dennis - 3rd-Year Chimney Sweep Apprentice

  • Third-generation chimney sweep
  • John Jr’s second-oldest son
  • Enjoys serving his community, outdoor activities, and working outdoors
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