Home
With roots dating back to 1888, Construction Ventures Inc. is a general contractor with offices in Winona, Rochester, and St. Louis Park, MN. The company engages in industrial, institutional and commercial construction, and performs construction under the names All Trades Service, Schwab, and Karkela Construction, Inc.

OUR DIVISIONS

ALL TRADES SERVICE

All Trades Service is a local contractor specializing in institutional and industrial construction in existing facilities throughout southeastern Minnesota.

LEARN MORE AT ALLTRADESERVICE.COM

KARKELA CONSTRUCTION

Karkela is an industry leader in new construction and large-scale renovations throughout the Twin Cities metro area.

LEARN MORE AT KARKELA.COM

SCHWAB

Schwab is a general contractor that provides construction services throughout southeastern Minnesota and northern Iowa, with offices in Rochester and Winona.

LEARN MORE AT SCHWABLLC.COM

LATEST NEWS