South Portland, ME
Backflow testing in South Portland
Call or send a request. We help you find an independent local backflow testing company in South Portland.
Warning signs
If a property owner in South Portland refuses to install or maintain a required backflow prevention device, or blocks access for inspection, the Portland Water District may shut off water service until compliance is achieved.
Source: Portland Water District, Cross Connection Control Program, 2025 Update, Oct 15, 2026
Questions about this? Call (207) 419-0641
Cost
Backflow testing in South Portland involves a report fee. The Portland Water District charges inspectors $18 per report submitted after March 1, 2026. Inspectors decide what portion, if any, customers pay.
Source: Portland Water District, Cross Connection Control Program update (VEPO CrossConnex), Oct 15, 2026
Questions about this? Call (207) 419-0641
Who may do the work
Under state plumbing rules, installing a testable backflow prevention assembly requires a plumbing permit fee. The Portland Water District mandates backflow devices for new homes, major building and plumbing renovations, and upgraded fire sprinkler systems. A backflow preventer is also required when adding a landscape irrigation system to a property without one.
Source: Code of Maine Rules 02-395, Chapter 4, Section 1, Plumbing Installations (Cornell LII), Oct 15, 2026
Source: Portland Water District, Cross Connections, Oct 15, 2026
Upkeep and replacement
Annual testing of testable backflow prevention devices is required for all Portland Water District customers. A certified backflow device inspector must perform this yearly inspection.
Source: Portland Water District, Cross Connection Control Program update (VEPO CrossConnex), Oct 15, 2026
Facts about South Portland
Under the Portland Water District cross-connection program, an owner's refusal to install or maintain a backflow device, or to allow access for inspection, is grounds to shut off water service until the device is in place.
Source: Portland Water District, Cross Connection Control Program, 2025 Update, Oct 15, 2026
Since March 1, 2026, the Portland Water District charges the certified inspector $18 for each backflow test report, and the inspector sets any part of that cost passed on to the customer.
Source: Portland Water District, Cross Connection Control Program update (VEPO CrossConnex), Oct 15, 2026
The Maine plumbing rule charges a plumbing permit fee for a testable backflow prevention assembly.
Source: Code of Maine Rules 02-395, Chapter 4, Section 1, Plumbing Installations (Cornell LII), Oct 15, 2026
Since January 1, 2019, the Portland Water District requires a backflow device for new homes, substantial renovations of buildings and plumbing, and upgraded fire sprinkler systems.
Source: Portland Water District, Cross Connections, Oct 15, 2026
The Portland Water District requires a backflow preventer when a customer with no backflow preventer adds a landscape irrigation system.
Source: Portland Water District, Cross Connections, Oct 15, 2026
The Portland Water District requires each customer with a testable backflow prevention device to have it inspected every year by a certified backflow device inspector.
Source: Portland Water District, Cross Connection Control Program update (VEPO CrossConnex), Oct 15, 2026
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