Meet Our Team Amy M Office Manager 1 Review Randy M Installation Manager 1 Review Justin W Installation Crew Leader 22 Reviews Collin K Installation Technician No Reviews PJ C Installation Technician 1 Review Terry Q Installation Technician 22 Reviews Steve R Service Technician 1 Review Mike C Service Technician 10 Reviews Need HVAC Service? Contact the experts at ESI Heating. Call us at 517-647-6906! Request Service ESI Heating proudly provides HVAC service to Portland, Dewitt, Grand Ledge, the Greater Lansing area and the surrounding communities. Visit our service area page for more coverage details, call us at 517-647-6906, or request service online today.