Automatic Water Shutoff Valve Installation

Protect your home from water damage—even when you’re not there.

A burst pipe while you’re at work. A slow leak while you’re on vacation. A supply line failure in the middle of the night. By the time you notice, the damage is done—flooring ruined, drywall soaked, mold starting to grow.

An automatic water shutoff valve monitors your water 24/7 and shuts it off the moment it detects a problem. No waiting for you to get home. No hoping a neighbor notices. The water stops, and the damage stops with it.

Call (707) 200-8350 to discuss which system is right for your home.

Moen Flo Smart Water Monitor and Shutoff

The most popular choice for homeowners—and the one many insurance companies specifically recognize.

Why homeowners choose Moen Flo:

• User-friendly app and setup
• Backed by a trusted plumbing brand
• Monitors flow, pressure, and temperature
• Detects leaks as small as a drip
• Automatic shutoff when problems are detected
• Daily health tests check your system integrity

Moen Flo is a great all-around choice, especially if you’re new to smart home technology or your insurer specifically requires a Moen system.

Note on Moen Flo pricing: You may have seen “$745 install” offers through insurance partnerships. Those quotes rarely hold up—most homes need adjustments that add to the cost. We quote based on your actual home, so you know the real price upfront. No surprises.

Phyn Plus Smart Water Assistant

Known for the most accurate leak detection in the industry.

Why homeowners choose Phyn:

• Highly precise leak detection (down to half an ounce per minute)
• Detailed water usage reporting
• No subscription fees for core features
• Works with most smart home platforms
• Pressure monitoring helps identify developing problems

Phyn is ideal if you want the most detailed data about your water usage or if you’ve had false alarms with other systems.

Watts LeakDefense

A professional-grade option for larger homes or complex plumbing systems.

Why homeowners choose Watts:

• Robust construction built for demanding applications
• Available in larger pipe sizes (up to 2”)
• Reliable performance in high-flow situations
• Good choice for homes with multiple water lines

We often recommend Watts for larger homes, homes with irrigation systems on the main line, or situations where other systems have struggled.

Other Options

Flume — A monitor-only option that attaches to your existing water meter. It provides leak detection and usage monitoring without automatic shutoff. Lower cost, but you’ll need to shut off water manually when alerted.

StreamLabs — Another solid option with competitive pricing and good smart home integration.

Not sure which system is right for you? We can evaluate your home’s plumbing, discuss your priorities, and recommend the best fit.

Continuous Monitoring

The system monitors water flow through your main line 24/7. It tracks flow rate, pressure, and temperature—building a profile of your home’s normal water usage. It learns when you typically shower, run the dishwasher, or water the lawn.

Leak Detection

When something falls outside normal patterns, the system takes notice. Advanced systems can detect leaks as small as half an ounce per minute— far smaller than you’d ever notice on your water bill. They can also detect sudden high-flow events that indicate a burst pipe.

Automatic Shutoff

When the system detects a likely leak, it closes the valve automatically— typically within seconds. The water stops flowing, and the damage stops accumulating. You get an alert on your phone telling you what happened.

Remote Control

From the app, you can:

• See real-time water usage
• Manually open or close the valve
• Run system health tests
• Set custom alerts and thresholds
• Review usage history

Going on vacation? Put the system in “away” mode for extra-sensitive monitoring, or shut off the water entirely with a tap on your phone.

Premium Discounts

Many major carriers offer premium discounts when you install an approved automatic water shutoff system. These discounts typically range from 5% to 20% of your annual premium.

Carriers offering discounts or incentives include:

• Mercury Insurance — Formal leak detection program
• Amica Insurance — Premium discounts for smart water systems
• PURE Insurance — Up to 5% savings
• State Farm, Allstate, Farmers, Travelers — Various smart home discounts
• Chubb — Discounts on select policies
• Nationwide, Liberty Mutual, American Family — Incentive programs

Some insurers offer rebates of $400-$500 annually—which can pay for the system within a few years while also protecting you from catastrophic loss.

Requirements Are Tightening

Beyond discounts, some insurers are beginning to require automatic shutoff systems for certain policies. This is especially true for:

• High-value homes where potential claims are larger
• Older homes with aging plumbing systems
• Homes with previous water damage claims
• Properties in certain zip codes with high claim frequency

Farmers Insurance, for example, has required automatic shutoff systems for some California policyholders as a condition of coverage or renewal.

Installing a smart shutoff valve now positions you well for whatever requirements come next—and may help you avoid coverage complications down the road.

What to Expect

1. Assessment — We evaluate your main water line location, pipe size, and any complications (PRV location, space constraints, pipe material)
2. Recommendation — Based on your home and priorities, we recommend the right system
3. Scheduling — We schedule installation at your convenience
4. Installation — We shut off water, install the valve, and restore service (typically 2-4 hours)
5. Setup — We calibrate the system and walk you through the app
6. Documentation — You get proof of professional installation for your insurer

Why Professional Installation Matters

Insurance requirements — Many discounts specifically require proof of professional installation. DIY installation may disqualify you from premium reductions.

Warranty protection — Improper installation can void the manufacturer’s warranty. If the system fails because of an installation error, you may have no recourse.

Proper function — These systems need correct placement, proper electrical connections, and appropriate calibration. A system installed incorrectly might not detect leaks accurately, might cause false alarms, or might fail to shut off when it matters most.

Real-world conditions — Most homes aren’t “plug and play.” PRVs may need repositioning, pipes may need modification, and space constraints require creative solutions. We handle all of that.

Factors that affect cost:

• System choice — Moen Flo, Phyn, Watts, etc.
• Pipe size — 3/4” vs. 1” vs. larger
• Installation complexity — Straightforward vs. tight spaces or difficult access
• PRV considerations — May need repositioning or replacement
• Electrical requirements — Outlet availability near installation point
• Pipe modifications — Some homes need additional fittings or loops

Typical total cost: $500-$1,500 including device and installation.

We assess your home before quoting, so you know the real price upfront. No surprise add-ons when we arrive.

Is This Right for Your Home?

An automatic shutoff valve makes sense for most homeowners, but it’s especially valuable if:

• You travel frequently — Protection while you’re away
• You have an older home — Aging pipes are more likely to fail
• You’ve had water damage before — Prevent it from happening again
• You have a vacation home — Remote monitoring and control
• Your home has finished basement space — More to lose if water gets in
• You have valuable belongings — Art, electronics, irreplaceable items
• Your insurance requires or incentivizes it — Save money while staying protected

Even if none of these apply, the peace of mind is worth considering. Knowing your home is protected—whether you’re asleep, at work, or across the country— is a comfort that’s hard to put a price on.

Why Choose GoFlow

• We know these systems — We’ve installed Moen Flo, Phyn, Watts, and others
• Honest recommendations — We’ll tell you which system fits your situation, not just the most expensive one
• Real-world pricing — Based on your actual home, not a bait-and-switch quote
• Professional installation — Qualifies you for insurance discounts
• Documentation provided — Proof of installation for your insurer
• We handle complications — PRV repositioning, pipe modifications, tight spaces—we’ve seen it all
• Local service — We’re here if you need support after installation

Where We Install

We install automatic water shutoff systems throughout Sonoma and Marin Counties.

Service areas:

• Sonoma County plumbing
• Marin County plumbing

Related services:

• Leak detection and repair — Find existing leaks
• Emergency plumbing — When water damage has already happened
• Whole house repiping — If your pipes are the problem