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A hand turns a shut-off valve on a copper pipe; the words "Bonfe Insider, June 2025" appear in blue and red text on the left.

Know Your Shut-Off Valves: A Simple (But Essential!) Guide for Twin Cities Homeowners

The time to learn this is now , not during a crisis!

Maybe you’ve already experienced that moment of panic—a pipe starts leaking, water begins pooling on the floor, and suddenly you’re frantically searching for the shut-off valve. Or perhaps you’re preparing for a Minnesota winter and need to shut off your exterior water supply. 

Or, you could be one of the lucky ones who hasn’t had anything like this happen yet! Understanding your home’s shut-off valves isn’t just handy knowledge—it’s essential for preventing property damage and keeping your family safe.

At Bonfe, we’ve seen countless emergency calls that could have been prevented with proper shut-off valve maintenance. Let’s explore everything you need to know about these crucial components of your home’s plumbing and gas systems.

What Are Shut-Off Valves and Where Are They Located?

Shut-off valves are safety devices that control the flow of water or gas to specific areas of your home. They’re your first line of defense when emergencies strike, allowing you to quickly stop the flow before significant damage occurs.

Or, you could be one of the lucky ones who hasn’t had anything like this happen yet! Understanding your home’s shut-off valves isn’t just handy knowledge—it’s essential for preventing property damage and keeping your family safe.

At Bonfe, we’ve seen countless emergency calls that could have been prevented with proper shut-off valve maintenance. Let’s explore everything you need to know about these crucial components of your home’s plumbing and gas systems.

Main Water Shut-Off Valve

Your main water shut-off valve controls water flow to your entire house. In Minnesota homes, it’s typically located:

  • Near where the main water line enters your home (often in the basement)
  • Along the foundation wall facing the street
  • Sometimes near your water meter

There are two common types of main water shut-off valves:

A metal ball valve with a red lever handle, brass-threaded ends, and "DN50 PN25" markings on the body, featured in the June 2025 Bonfe Insider, isolated on a white background.

Ball Valves (Lever Handle)

  • More modern and reliable
  • Quarter-turn operation (90 degrees from open to closed)
  • At Bonfe, we exclusively install ball valves when replacing older systems.
Brass gate valve with a red handwheel, featuring a threaded connection and marked "1/2" on the body, positioned upright on a white background—perfect for your June 2025 Bonfe Insider feature.

Gate Valves (Wheel Handle)

  • Found in older Minnesota homes
  • Require multiple turns to fully open or close
  • More prone to sticking and deterioration over time

Exterior Water Shut-Off Valves

In Minnesota’s climate, exterior water management is crucial. Most Twin Cities homes have shut-off valves for outdoor water sources located inside the house, typically:

  • In the basement or utility room
  • On the water line leading to exterior spigots
Important Minnesota Winter Tip: When winterizing your home, don't just turn off the outdoor spigot. You need to shut off the interior valve controlling water flow to exterior lines, then drain the remaining water to prevent freezing and pipe bursts.
A chrome-plated brass angle stop valve with a compression fitting, commonly used to control water flow to plumbing fixtures—featured in the June 2025 Bonfe Insider.

Angle-Stop Valves

These smaller valves control water to specific fixtures, like:

  • Under sinks
  • Behind toilets
  • Near washing machines

They’re typically chrome or brass and feature a small oval or round handle that turns perpendicular to the pipe

Gas Shut-Off Valves

Your home also has gas shut-off valves if you use natural gas. The main gas shut-off is typically located:

  • Near your gas meter
  • Along the gas line entering your home

Individual gas shut-offs can also be found near:

  • Furnaces
  • Water heaters
  • Gas-powered appliances

Common Shut-Off Valve Problems

It’s not your fault! Even in well-maintained Twin Cities homes, shut-off valves can develop issues over time:

Valve Won’t Turn

  • Mineral buildup from our Minnesota water can cause valves to seize
  • Lack of use leads to stiffening and corrosion
  • Older gate valves are particularly prone to this problem

Leaking Valves

  • Small drips around the stem or handle
  • Often worsens when operating the valve
  • Can lead to water damage and mold growth

Complete Failure

  • Broken handles or stems
  • Valves that won’t fully close
  • Catastrophic leaks when attempting to use

Mineral Deposits

  • White or greenish buildup around the valve
  • Results from slow leaks that have evaporated over time
  • Can indicate internal damage

Shut-Off Valve Maintenance

Here’s some good news: Basic maintenance can prevent most valve failures!

Exercise Your Water Valves

  • Turn water valves off and back on at least once annually. Note: Do NOT turn off your gas valves; this will require you to reignite your pilot lights.
  • This prevents seizing and identifies potential issues early
  • Mark your calendar for an annual “valve check” day

Know Their Locations

  • Label your shut off valves so they are easy to identify
  • A Bonfe plumber will happily label your shut off valves for you during their visit!

Visual Inspections

  • Check for signs of corrosion or mineral deposits
  • Look for dampness or water stains around valves
  • Ensure handles are intact and securely attached

Why Valve Replacement Isn’t a DIY Project

While some home repairs are DIY-friendly, replacing a shut-off valve requires professional expertise. Here’s why bringing in a professional is important for this type of job:

  • Improper installation can lead to catastrophic leaks
  • Working with older pipes increases breakage risk
  • Gas valve work requires professional certification for safety
  • Permits may be necessary for many Twin Cities municipalities, and the city may need to shut off your water supply during main water shutoff valve replacement
  • Professional-grade valves last significantly longer than hardware store options

The Benefits of Proactive Valve Replacement

Being proactive about shut-off valve replacement offers several advantages:

Emergency Prevention

  • Replace valves before they fail completely
  • Avoid middle-of-the-night emergencies
  • Prevent water damage to floors, walls, and belongings

Convenience

  • Schedule replacement at your convenience
  • Plan for minimal water service disruption

Cost Savings

  • Prevent water damage restoration expenses
  • Avoid emergency service rates
  • Protect valuable belongings from water damage

Why Choose Bonfe for Your Shut-Off Valve Needs

When Twin Cities homeowners need reliable plumbing services (and other home services!), they’ve trusted Bonfe for decades. We offer:

  • Lifetime Warranty: Our repairs and installations are backed by an industry-leading Lifetime Warranty. As long as you live in your home, you’re covered—you’ll only pay the standard $99 service charge.
  • Local Expertise: Located in South St. Paul, we’ve proudly served the greater Twin Cities metro since 1993. We understand Minnesota homes and their unique plumbing needs.
  • Stellar Reputation: We maintain an A+ rating from the BBB and a 4.8-star rating from over 10,000 Google reviews.
  • 24/7 Availability: Plumbing emergencies don’t stick to a 9-to-5 schedule, and neither do we. We’re here whenever you need us.

Don’t Wait Until an Emergency!

The most headache-inducing and potentially costly shut-off valve is the one that fails when you need it most. Whether you’ve noticed a problematic valve or want peace of mind knowing your shut-offs are in good working order, our team is ready to help.

Schedule your shut-off valve inspection or replacement service today.

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