Harder Mechanical Contractors, Inc. Listed in Contractors 2148 NE Martin Luther King, Jr. Blvd.Portland, OR 92708 (503) 382-4439 http://www.harder.com Member Since 08/01/2020 Return to Directory Overview Map & Directions Business Name: Harder Mechanical Contractors, Inc.Business Category: ContractorsLong Business Description: Concrete installation, controls, design services, equipment installation, fabrication, hydronics, plumbing, process piping, steel erection, tank installation & modification, virtual design & construction, skids & modularization Website: http://www.harder.comBusiness Phone Number: (503) 382-4439