Questions to ask when choosing landscape irrigation/sprinkling system contractor.
How deep will the pipes be laid under the ground?
This is VERY important, and will depend on where you live. But generally in Michigan or any area that freezes or has a full winter season, 12 inches should be the standard. This may vary from 8-12, but should never be less than 8 inches. Many contractors may come in with lower bids and try to skimp on the depth of your system. Your system may work fine for a few years, but the excessive freeze wear on the system will cause it to break down quicker.
What brand of products do you use?
Is it a brand you have heard of? If not, call some hardware or home improvement stores and ask if they carry the product and if they would recommend it. If you cannot find a local retailer that stocks that brand, you may not want to have that product used because it may be difficult to find replacement parts fast, and retailers tend to carry bigger higher quality brands.
Will I get a detailed layout map?
You should find out if you will receive a detailed layout of where all the water lines and sprinkling heads are located. This will be very valuable when planning out other landscape features or later on if you need to troubleshoot the system.
How much money do you need down to start?
Never pay in full before the job is started, a reasonable deposit shouldn’t exceed 50% of the project quote. Be sure and use a check or credit card (if accepted). Try also to get written receipt from the deposit. A cashed check can serve as a backup receipt also.
What is the time line?
When will you start, and when will you finish. This is also extremely important. With most items mentioned here, get this written into your final quote/contract. If they need a deposit, I would only give a token up front and then give the full deposit once any real work has started.
Ask for references
Be sure and ask for detailed references of work they have done in the past that is similar to your project. If you can, talk to a few, and try to drive past some of the previous customers and view the work for yourself.