Columbia NW has been providing the perfect temperature for your home and office since 1989. We are a Trane Comfort Specialist charter member. We service and install, gas, oil, electric furnaces, air source and geothermal heat pumps, central air conditioning and a full line of life style enhancements for the comfort of your home. Columbia NW is also certified and approved with the following groups; Energy Trust of Oregon, PGE approved Check ME Certified, PTCS Duct Sealing Certified, NW Natural.