Backflow Enclosures in Cary, NC

Cary is a master-planned town, and its irrigation infrastructure shows it. Drive through Preston or MacGregor Downs and you will find irrigation backflow assemblies on nearly every lot—most of them reduced-pressure (RPZ) devices mounted above ground where they belong for testability, and exactly where a January cold snap can crack them. A burst relief valve floods a bed overnight and leaves you without irrigation until the assembly is rebuilt or replaced.

What an ASSE 1060 enclosure actually does

A proper backflow enclosure is not a decorative cover. It is an insulated, freeze-protected housing listed to ASSE 1060, the standard that rates how well an enclosure resists freezing, sheds water, and resists tampering. For Cary’s above-ground RPZ and double-check assemblies, that insulation buys the margin you need through the coldest Triangle nights, while a lockable enclosure keeps the assembly secure on visible front-yard installs. We install the box, confirm clear access to all test cocks and shutoffs, and make sure the unit drains so it never traps water against the device.

Cary’s housing eras matter here. MacGregor Downs dates back to the late 1960s, Lochmere and Preston filled in through the 1980s and 1990s, and Amberly and the newer communities carry 2000s-and-later systems. That is a deep inventory of aging irrigation and larger zoned setups on two-story homes—and a lot of assemblies installed before anyone thought about freeze protection. Retrofitting an enclosure is the cheapest insurance you can put on a device you are already required to test and maintain.

Cary is its own water utility. The Town of Cary operates the Cary/Apex Water Treatment Facility on Jordan Lake and runs the cross-connection control program for its own customers and for Morrisville. That means your backflow requirements are set and enforced by the Town, not the county.

Under NC SB 166, residential irrigation assemblies in Cary now test every three years rather than annually. Assemblies tied to a booster pump or chemical-feed system still test every year. The testing itself must be performed by a technician certified by the Town of Cary, and the customer is responsible for submitting the signed report within 30 days of the test. The Town also offers an annual online opt-out form if you want to use your own certified tester or skip a year you do not owe.

An enclosure does not change any of that—but it protects the device that has to pass those tests. Our technicians are Cary-certified, so we can install your freeze-protected enclosure, test the assembly while we are on site, and handle the paperwork end to end so the report reaches the Town inside the 30-day window.