Catch leaks before they become water damage

Hidden leaks quietly raise the water bill

Most occupied commercial buildings are already leaking. That water shows up as a higher bill, then as damage to finishes, equipment, and operations. NOWi shows what's leaking this week so you can stop the waste before it soaks the building. Cellular. No plumbing. No Wi-Fi.

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  • img link Flood prevention icon - NOWi leak detection prevents water damage

    Prevent expensive water damage

    Catch leaks in occupied buildings before they soak finishes, equipment, and operations.

  • img link Property protection icon - NOWi water monitoring reduces property damage risk

    Improve property NOI

    Find the leaks that quietly raise the water bill on occupied commercial sites.

  • img link Customer satisfaction icon - NOWi Sensors happy clients

    Keep operations running

    Spot leaks early so tenants and building operations are not surprised by water damage.

  • img link Analytics icon - NOWi water usage data and reporting

    No Wi-Fi, no construction

    Minute-level usage over cellular. No gateway, no building Wi-Fi, and no plumbing project.

  • img link Cost savings icon - NOWi sensors reduce water costs

    Monitor cooling towers

    See cooling-tower water use and leaks with the same cellular monitors.

  • img link Fire sprinkler monitoring icon - NOWi sensors monitor sprinkler systems

    Monitor fire sprinkler systems

    Watch sprinkler lines for leaks without cutting pipe or shutting water to install.
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High-resolution water analytics dashboard - NOWi Sensors facility monitoring

Get a complete picture of water use

Minute-level data shows abnormal usage in occupied buildings so you can see what is leaking this week — and whether it stopped after the repair.

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Water usage breakdown chart - NOWi Sensors analytics showing consumption by area

See what is driving usage

Break down which systems or buildings are driving water use so you know where to look first.

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Water dripping out of an outdoor faucet.

Irrigation leaks hide in plain sight

An estimate of about 50% of irrigation water is lost to evaporation, wind, or runoff. One irrigation leak can waste over 200,000 gallons per month.

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Meter and pipe sensors

  • img link No Plumbing or WiFi Needed

    Meter Monitor

    Reads the existing meter with magnetic, pulse, or meter protocols. Minute-level data. 5+ year battery. No electrician, gateway, or Wi-Fi.

    Meter Monitor 
  • img link No Plumbing Needed

    Pipe Monitor

    Clamp-on ultrasonic. Cellular. No plumbing.

    Pipe Monitor 
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“NOWi's precise, high-resolution data proved invaluable in analyzing water savings across a diverse range of commercial properties we service, from bustling restaurants to large-scale manufacturing facilities.”

PGW Solutions

What this looks like in the field

Published results from the same hardware. The pattern is the same: most sites are already leaking, and the bill shows it.

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    Los Angeles: 47 buildings

    In week 1, 72% were leaking. 34% were leaking more than $100 per month. About 794,000 gallons per month — 8.5% of use — about $190,000 per year. The worst building was about 7,351 gallons per day, about $4,400 per month.

    Read the LA portfolio 
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    San Francisco: $11,040 a month in leaks

    11 of 24 were leaking — 345,000 gallons per month, $11,040 per month, ROI under 2 months. A 27-building group showed 159,000 gallons per month, $5,100 per month.

    What is the ROI of a water monitoring system 
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    One site, $24,000 a month leaking

    1,521 GPH leaking, $24,092.64 per month. Triage took 2 hours.

    Read the case study 

How commercial buildings lose water

Start with the water leak prevention checklist for commercial buildings and the major causes of water damage in buildings.

Commercial leak detection FAQ

What is commercial water leak detection?

Ongoing monitoring so you can catch leaks that waste water and become damage. Not a one-time plumber visit. Cellular sensors, no new plumbing, no building Wi-Fi.

Is this the same as calling a plumber for leak detection?

No. A plumber locate is a one-time visit to find a suspected leak. This is ongoing monitoring so you can see what is leaking this week and keep watching after the repair.

Do you cut pipe or shut off water to install?

No. Meter Monitor reads the existing meter (magnetic, pulse, or meter protocols). Pipe Monitor is clamp-on ultrasonic. No plumbing and no electrician.

Does the system need Wi-Fi?

No. Meter Monitor and Pipe Monitor use cellular — no Wi-Fi and no gateway.