Corevac is a recognized leader
in providing underground construction services using vacuum excavation, directional drilling, coring and keyhole technologies to utility and municipal industries in the midwest and throughout the
United States.

Corporate headquarters in Oostburg, Wisconsin with locations in Milwaukee and Appleton.

• Leaders in keyhole technology
• Competitive prices
• Unparalleled reliability

These are the qualities we bring to our customers... guaranteed.

Corevac, LLC offers our
customers 24 hour service,
7 days a week, 365 days a year.

Contact Corevac
(920) 564-3400 office

24/7 Emergency
Excavation Dispatch
(920) 547-0965

Corevac, LLC
W2385 County Rd A South
Oostburg, WI 53070
(920) 564-3401 fax

Corevac, LLC BBB Business Review

Corevac, LLC

Contact Us


For billing or clerical inquiries or immediate service, please call our office at 920-564-3400.

For 24/7 Emergency Hydro Excavation dispatch, call 920-547-0965.

For all other needs, please email


Interested in a career with Corevac?

Download our employment application

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