Laura Engler project manager at Jim Engler's Homework More about Laura Engler Our business is unique. We do provide State of Ohio Licensed services. We are OH Lic.# 44764 EL,PL, HV for Electrical, Plumbing, and HVAC contracting. We also provide BackFlow Testing ( OH#6025), and we are DOT "OQ"Gasline/Gaspipe Certified #K25505C28817. We always comply with all state and local regulations. Our services include our commitment to our senior clients. We are also very conscious of environmental safety. Our EPA Lead Safe certification # 27674-2, and our website is www.homework123.com