Honu BackflowTesting · Big IslandHonu Backflow Testing, LLC
Service Areas

Backflow testing across Hawaiʻi Island

We cover the Big Island from the Kona coast to Hilo and up to Waimea — certified testing, plain-language results, and County-compliant reports filed for you. Find your town below for local details.

Where we work

Local testers, island-wide coverage

Kailua-Kona is home base, and we make the drive to Hilo, the Kohala Coast, upcountry Waimea, and South Kona too. Pick your town for local scheduling, neighborhoods we cover, and how the County handles compliance where you are.

Kailua-Kona

Aliʻi Drive, Keauhou, Holualoa, Kailua town, Old Airport, Honokōhau

Kailua-Kona is home base for us. From Aliʻi Drive condos and vacation rentals to Kona's restaurants, coffee farms, and the commercial strips along Kuakini and the Queen Kaʻahumanu Highway, we test the irrigation, fire, and potable assemblies that keep West Hawaiʻi's water safe. We know how the Department of Water Supply runs cross-connection control in Kona and file every report the way the County expects. And if a device fails, we'll explain what failed in plain language and walk you through the next steps.

Kailua-Kona details

Hilo

Downtown Hilo, Bayfront, Waiākea, Kaūmana, University area, Keaukaha

On the windward side, Hilo's heavy rainfall keeps irrigation and drainage systems working hard, and the backflow assemblies on the potable side have to be spot-on. We serve Hilo homes, downtown businesses, and larger properties around the bayfront and the university, testing RP, DC, PVB, and SVB devices and filing compliant reports with the County. Whether you're managing a commercial kitchen downtown or a property near the water table, we keep your cross-connection paperwork current — and if a device fails, we'll explain what's wrong and walk you through the next steps.

Hilo details

Waikoloa

Waikoloa Village, Waikoloa Beach Resort, Mauna Lani corridor, Kohala Coast

Waikoloa's resorts, vacation communities, and golf-course landscaping run extensive irrigation, which means a lot of backflow assemblies to keep compliant. We test single-family homes in Waikoloa Village as well as the larger multi-assembly properties along the resort corridor, coordinating with HOAs and property managers so nothing gets missed. Expect scheduling that works around guests and a consolidated report covering every device on the property.

Waikoloa details

Waimea

Waimea town, Kamuela, Puʻukapu, Waikiʻi, Māmalahoa Highway corridor

Up in Waimea (Kamuela), cooler upcountry weather and working ranch land shape how properties use water. We test backflow assemblies for paniolo-country homes, ag and equestrian properties, and Waimea's town businesses, verifying that irrigation and potable lines stay separated the way County rules require. Whether you're off Māmalahoa Highway or tucked into the pastures, we'll get you tested and documented on schedule.

Waimea details

Captain Cook

Captain Cook, Kealakekua, Hōnaunau, Kealia, Nāpōʻopoʻo

South Kona — Captain Cook, Kealakekua, and Hōnaunau — is coffee and farm country, where many properties lean on irrigation and catchment systems and cross-connection control matters most. We test residential and agricultural backflow assemblies throughout South Kona, making the drive so you don't have to, and file the compliant reports that keep your water and your neighbors' safe. Farm, home, or small business, we cover the South Kona coast.

Captain Cook details

Don't see your town?

We cover a lot of ground on Hawaiʻi Island — from Nāʻālehu to Honokaʻa and Puna. Give us a call and we'll let you know when we can get to you.

Call (808) 345-6344

Ready to keep your water safe?

Book a certified backflow test in a couple of clicks, or call and talk to a local plumber. We'll handle the rest — including next year's reminder.