Sprinkler and irrigation
Installing and repairing yard watering systems, and the valves and timers that fail every summer in this heat.
What you need
In Columbus the General Contractor licence needs a notarised application, a $25,000 bond and liability insurance naming the city — no exam. The Home Improvement General Contractor licence is harder: a written exam at 70% or better, three full years of hands-on experience, and approval by the Board of Review.
City of Columbus — Department of Building and Zoning Services
Read the trade scopes before you pay. People apply for the Home Improvement licence when the General Contractor licence covers their work, and pay for an exam and a board hearing they did not need. And this is the Columbus answer only — Whitehall wants a $25,000 bond and $500,000 insurance with no exam, Reynoldsburg charges $75 per trade and makes a general contractor register separately for every specialty he self-performs, and Gahanna registers online for $100.
Open the official page ↗
What to buy
- A trencher, hired by the day at first
- Pipe, fittings, valves and timers
- A pressure tester and a valve locator
- A truck
Checked September 3, 2026