Who we are
SoCal's Premier Fire Hydrant Testing & Repair Company
Hydrant Flow Inc. – Fire Hydrant Testing, Repair & Underground Fire Line Services
CSLB #1138653
Hydrant Flow Inc. is a licensed fire protection contractor serving Southern California with expert fire hydrant testing, repair, and underground fire line services. We specialize in private hydrant installation, 24-hour emergency fire line repairs, and commercial water main testing for the private sector, city/state agencies, and government facilities.
Our certified team performs Annual and 5-Year California State Fire Marshal Testing, as well as hydraulic fire flow calculations to meet code compliance. We proudly serve Los Angeles, Orange County, San Diego, Riverside, and San Bernardino counties.
If you need reliable, responsive fire protection services for commercial, industrial, or municipal systems — contact Hydrant Flow Inc. today.
Hydrant Flow Inc. is Socals Premier Fire Protection Service specializing in: – Fire Hydrant Testing Flow Testing/Installation of Fire Hydrants & Underground fire protection systems. Post indicator valve repair/install, DCDA/Backflow Installation/repair. Underground gate-valve repair and servicing.
Hydrant Flow Inc. performs annual testing, inspection, and surveys. Our services include annual flow testing, inspection, documentation, reporting, and residual fire hydrant flow tests to determine water main capabilities.
- Annual State Fire Marshal Testing
- Fire Hydrant Flow Testing (GPM, Residual, Static)
- Fire Hydrant Installation/Repair
- Underground Fire Line Repair
- 24-7 Emergency Fire System Repair
- 5-Year State Fire Marshal Testing
What we do for you!
#1 Rated For H.O.A. and Large Commercial Fire System Testing
We are helping all businesses with their fire hydrant testing services
Numbers Speak
We have twenty years of great experience in the Fire Protection Industry
154
Last 5 Years
2
Team Member
48
in 10 Years
12
Received
How we execute industries
Ready to bring bigger, better, faster and stronger fire hydrant testing?
- Our Mission
- Our Vision
- Our History
We are currently the largest and most trusted hydrant flow testing company in the nation, actively servicing 700,000 + hydrants.
- Annual Safety Inspections
- ISO Reporting
- Fire Hydrant Testing
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Fire Hydrant Testing
- Residual Pressure Testing
- Water Main Flushing
- Comprehensive Reporting
Contact Us
Request a call back
Have a question about your fire hydrant testing? Contact us 24 hours a day 7 days a week for the best customer service!
Do you need any help?
Fire Hydrant Testing Frequently Asked Questions
The Fire Department is able to determine proper operations of valves, visible and audible leaks, water pressure, flow of gallons per minute and ability to flush out sediment in the main. This practice not only extends the life of our water mains but improves water quality.
Your water pressure may be reduced while hydrants in the area are flowed but will never stop. The pressure will return quickly.
During the flushing process, it is not uncommon for a yellow, brown or reddish tint to appear in the water. Harmless mineral deposits settle in the water mains and flushing the fire hydrants stirs the deposits sometimes causing discoloration of the water.
You will receive for each hydrant and a duplicate written inspection report will be submitted to the fire marshal.
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We are trusted by some of Americas largest companies
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