McKinstry, Spokane, WA: Backflow Testing

Approvals

✓ On the City of Spokane list Phone matches its Google profile

City of Spokane backflow assembly testers, as of February 4, 2026. Being on this list means the utility lets the company file backflow test reports in its water system; it is not a state license.

Ask for the certificate number of the tester who will do your test, and check that your own water utility accepts reports from this company.

Call (509) 747-3389 Visit website More testers in Washington

Price reports

What a backflow test costs in Spokane

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Published prices nationwide

$29.99 to $100 per assembly

$0$25$50$75$100$125

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

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 McKinstry

These are the city pages close enough for this business to appear on.

Other backflow testers nearby

Business	Services	Distance
Ripley's Plumbing	Backflow Testing	under 1 mi
Shaw Plumbing Services	Backflow Testing	1 mi
Inland Empire Fire Protection	Backflow Testing	2 mi
H2O Flow LLC	Backflow Testing	2 mi
Gold Seal	Backflow Testing	3 mi
Advanced Fire Systems	Backflow Testing	4 mi

Questions about McKinstry

Is McKinstry approved to test backflow assemblies?

McKinstry is on the City of Spokane list, as of February 4, 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 McKinstry do?

Their listing covers backflow testing. Call to confirm the service you need, because offerings change.

What areas does McKinstry serve?

They are based in Spokane, Washington, within driving distance of Spokane, Spokane Valley, Post Falls, Rathdrum, Dalton Gardens. Service areas are set by the business, so confirm yours when you call.

How do I reach McKinstry?

Call (509) 747-3389. Their website is linked on this page.

Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.

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