About Us


Knipp Roofing and Siding was founded in 1947 in Belleville, IL.Over the years Knipp has been handed down from one roofing expert to the next. In 2016, John & Sandy Haggerty acquired ownership of Knipp Roofing & Exteriors to carry out the mission of protecting a business' investments and making St. Louis area homes beautiful while protecting their most important assets. 

Our Team

John Haggerty - Co-Owner/Estimator



John graduated BTHS West in 1978 and started working as a night man for Jim Taylor, Inc. working his way up the ranks from kettleman to journeyman to foreman along side some of the hardest working union roofers in the St. Louis area.

In 1988, John started working in the back office operations as an estimator for high profile projects (Union Station, Con Agra, USPS, Alton Belle Casino).

Working directly with Jim Taylor, one of the greatest detail minds in the industry. "He once told me that if I short cut the details, he would fire me. So I gained a great appreciation for what details meant."

In 1992 John moved into roofing materials distribution working with ABC Supply Co. and started selling materials to the people he had once worked for.

In 1999 John started Haggerty Contracting, Inc. – a Union roofing contractor working on commercial projects like Walmart, Target and SAFB Commissary. 

In 2003 John was sought out to open a new branch of Dealers Service & Supply in Belleville. Within 10 years we were doing over $7M in sales!

After a 20 year wait, John along with his wife Sandy, acquired Knipp Roofing & Exteriors, Inc. in the Fall of 2016.

Sandy Haggerty - Co-Owner/President


This section is currently being updated.

John "JB" Haggerty - Office Manager


This section is currently being updated.