GW Flagg
Backflow testing. 33 Green Point Rd, Brewer, ME 04412
Approvals
Price reports
What a backflow test costs in Brewer
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Published prices nationwide
$29.99 to $100 per assembly
Every published price, with its source: what a backflow test costs.
Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.
Where you will find GW Flagg
These are the city pages close enough for this business to appear on.
- Brewer, ME(under 1 mi)
- Bangor, ME(2 mi)
Other backflow testers nearby
| Business | Services | Distance |
|---|---|---|
| Nichols Plumbing | Backflow Testing | 2 mi |
| Harley Plumbing | Backflow Testing | 2 mi |
| Eastern Fire Protection | Backflow Testing | 3 mi |
| Maine Fire Protection Systems | Backflow Testing | 4 mi |
| Brookside Plumbing | Backflow Testing | 45 mi |
Questions about GW Flagg
Is GW Flagg approved to test backflow assemblies?
GW Flagg is on the Old Town Water District list, as of January 20, 2026. That means the utility lets the company file backflow test reports in its system; it is not a state license. Ask for the tester's certificate number before the test.
What does GW Flagg do?
Their listing covers backflow testing. Call to confirm the service you need, because offerings change.
What areas does GW Flagg serve?
They are based in Brewer, Maine, within driving distance of Brewer, Bangor. Service areas are set by the business, so confirm yours when you call.
How do I reach GW Flagg?
Call (207) 989-1705.
Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.
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