About This Service
Geothermal Heat Pump Installation in Seattle
Geothermal heat pump installation in Seattle installs a ground-source heat pump and ground loop to provide year-round heating and cooling for single-family homes, multi-family residences, downtown condos, and commercial buildings. Systems tie a condensing heat pump and heat exchanger into existing ductwork or radiant-floor systems.
Site assessments must account for glaciofluvial soils, silty clay and variable bedrock depth; that determines whether horizontal trenches, vertical boreholes, or slanted bores are used. IGSHPA-certified installers size the loop and indoor unit, and quotes should cover loop depth, duct or radiant integration, and permit coordination.
Properly sized systems cut heating bills about 40–60% and ground loops last 50+ years, but expect yard disruption during loop installation and a multi-week permitting window in denser areas. Federal 30% tax credit and Seattle City Light rebates commonly offset part of the upfront cost.