Geothermal.contractors

Iowa Geothermal Services, based in Grimes, Iowa, has installed and serviced ground source heat pump systems across the Des Moines metro area since 2005. The company handles vertical closed-loop borehole drilling, loop field installation, new system commissioning, and ongoing maintenance and repair for residential and commercial properties. Owner Raymond Coons operates the company from Grimes, serving northwest Des Moines metro communities. Iowa Geothermal Services holds an A+ rating with the Better Business Bureau (not accredited) and appears in the Iowa Geothermal Association contractor directory, and is listed as a drilling contractor in the DrillerDB national directory. Operator status unverified — primary website iowageothermalservices.com offline at audit (Bundle 3 audit 2026-05-27)