Create a polished Irrigation Installation Contract with Venngage's customizable template. Edit text, colors, fonts, and more.Customize and Download this "Irrigation Installation Contract". Contractor must have five years experience of installing drip irrigation systems. How to fill out the Irrigation Distribution System Installation Agreement? 1. Gather legal descriptions of your property. 2. Second, the owner or contractor must complete and sign "Application to Construct Worksheet" (Form No. 284-199) if applying in person, no mail-in is accepted.