Start with the design
Ask how the system will be designed. A good contractor measures pressure and flow, walks the property and explains zones and head types. A contractor who quotes from a phone call or a satellite photo may miss the details that matter.
Ask to see a layout or a sketch before work starts.
Ask about the parts
Ask what brands and types of heads, valves, controller and pipe will be used, and whether a backflow device is included. Quality parts cost more and last longer, and compatible parts make repairs easier.
Make sure the proposal lists them, not just a lump sum.
Check the details of the work
Ask how utilities will be located, how deep the pipe will go, how the lawn will be protected and restored and how long the work takes. Ask who will be on site and who is responsible for the result.
A written schedule and a clear scope protect you both.
Look at paperwork and references
Ask about business registration and any local requirements that apply to irrigation work in your area, and ask for references and photos of recent work. Check reviews and look for patterns in what customers say.
Confirm that the contractor will handle any permit or backflow paperwork required.
Compare proposals fairly
Line up the number of zones, head types, controller, backflow device, restoration and schedule. A much lower price usually means something is missing. A higher price is not automatically better, so ask why.
Ask what happens if hidden problems are found, and how changes are priced.
Plan for after the install
Ask about start-up and winterization, service calls and how quickly the company responds. A maintenance plan can keep the system in shape and give you priority scheduling.
A good contractor teaches you the controller before leaving.
Hire the contractor who measures, explains and puts everything in writing, not the one with the shortest quote.
