Frequently Asked Questions

How much does an irrigation system cost to have installed?

Every property brings its own set of variables that impact the overall cost of an irrigation system. However, an average system will cost around $5,000.00 completely installed.
How long does it take to have a system installed?

Most of our systems are installed in one day. So you can begin using your system immediately.
Will the installation of the system damage my lawn?

We make every effort to keep the disruption of the lawn to a minimum. It is in our best interest to have this preferred end result. You will know that the system was just installed however; within two weeks (on average) the visual effects of the installation have gone away. The more you take care of your lawn upon completion of the installation the better your results will be. We use trench-less technology to install our pipes so your expectations can be high of our company.
What type of products does Commonwealth Irrigation & Landscape use?

We are a Select Gold Standard Rain Bird® Contractor recognized by Rain Bird® at a National level. We will install a complete package of Rain Bird® equipment so you know you are getting the best quality and technology on the market today and not a “pieced” together system of a variety of manufacturers.
When should I turn my system on?

We recommend late March early April. Let the change in season also help with this decision.
When should I turn my system off?

We recommend having your system winterized by Thanksgiving. You need to begin getting on our schedule in September and October.
My alarm light is on, what does that mean?

There are a few reasons why your alarm light could be on (based on model). The most common reasons that your Rain Sensor is working and has bypassed your program because there has been sufficient rainfall or you have a programming conflict and need to review the details of your watering program.
What is the "brass" device with pipes coming up from the ground?

This device is your back-flow prevention device. It is a protection device for the potable water supply and is required by all jurisdictions within Virginia. Many jurisdictions require that the device be tested annually to ensure its proper function.
Where is the main water shut off for my system?

This is in one of two places depending on how your system was installed. If you have an “outside” connection it is located within the valve box closest to your water meter. You will need to bend down to reach the ball valve. If you have an “inside” connection, a ball valve is located somewhere in the basement or under the house that will allow for you to isolate the irrigation system. If you have a leak in the system, turning the system off at one of these locations needs to be the first thing you do.
What type of pipe is used?

We install a complete PVC system for both mainlines and lateral lines using Rain Bird® flex pipe for head connections.
How do I adjust a rotor?

There are many rotors on the market. We install a 5000 series rotor from Rain Bird®. You do not need a special key for the Rain Bird® rotor. A small flat tip screwdriver will do. We have attached a PDF file for you to open with adjustment instructions.