1-Hour Drain, San Jose, CA: Backflow Testing

Approvals

✓ On the City of Milpitas list✓ On the City of Palo Alto list Phone matches its Google profile

City of Milpitas qualified backflow prevention assembly testers, as of April 30, 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.
City of Palo Alto approved backflow testers, as of August 10, 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 (888) 603-6886 Visit website More testers in California

Price reports

What a backflow test costs in San Jose

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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.

What 1-Hour Drain's website says

Services listed on 1-Hour Drain's website, read October 11, 2026: backflow testing, backflow repair, general plumbing, water heaters and drain and sewer service. 1hourdrain.com

It says	Details	Page
24-hour service	Offered, it says	1hourdrain.com

Read on 1hourdrain.com on October 11, 2026 (3 pages). This is what the business says about itself.

Where you will find 1-Hour Drain

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

Other backflow testers nearby

Business	Services	Distance
SV Plumbing Inc.	Backflow Testing	under 1 mi
Nickell Fire Protection Inc	Backflow Testing	under 1 mi
Therma, LLC.	Backflow Testing	2 mi
Flow City Plumbing	Backflow Testing	2 mi
Silicon Valley Mechanical	Backflow Testing	2 mi
United Mechanical	Backflow Testing	2 mi

Questions about 1-Hour Drain

Is 1-Hour Drain approved to test backflow assemblies?

1-Hour Drain is on the City of Milpitas list and City of Palo Alto list, as of April 30, 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 1-Hour Drain do?

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

What areas does 1-Hour Drain serve?

They are based in San Jose, California, within driving distance of San Jose, Sunnyvale, Pleasanton, Hayward, Morgan Hill. Service areas are set by the business, so confirm yours when you call.

How do I reach 1-Hour Drain?

Call (888) 603-6886. 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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