Koller Construction
General contractor in Oak Harbor, Washington
Active LicenseLicense #KOLLEC*099DH
TradeGeneral
CityOak Harbor, WA 98277
Phone(509) 710-0776
Business typeCorporation
PrincipalKoller, Gregory John
Licensed since1991-03-08
License expires2027-04-28
UBI601303852
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License data sourced from Washington State Department of Labor & Industries public records. Verify current status with the state before hiring.
