877-724-2022

Commercial Line Stopping & Plugging

Water Main Line Stops & Line Plugs

line stopping services

For municipal line stopping, Mickie Service Company is the leading provider in the Gulf Coast region. Our line stopping services (also called line stop) provides a temporary shut-off of an existing water main.

What Is Line Stopping?

A line stop is performed while the existing main is under pressure. Line stops can be “single” when flow is in a single direction or “double” for a grid, bi-directional flow situation. The line stops enable “point shut-down” of a main with dramatically reduced water loss, service interruption, and damage to infrastructure resulting from water main de-pressurization.

The line stop is accomplished by making a size-on-size tap, generally in the top of the main, then inserting a rubber plug or stopper into the line. The plug is then pumped into the main using a hydraulic ram (the main is supported by the line stop sleeve) which shuts off the water flow. After performing the necessary service, the stop is removed, and a blind flange is installed on the sleeve.

Line stopping is the preferred approach when the shut-off required is temporary (less than 3 days). We stock line stock fittings 4"-60" in all standard sizes, minimizing customer delay resulting from underground pipe uncertainty. 

Municipal Water Line Stopping Services

If you are in need of a permanent valve solution, we offer municipal insertion valve service, as well. Mickie Service Company’s Line Stopping significantly reduces or eliminates overtime costs, and decreases repair and routine maintenance time.

Advantages of Line Stopping

  • Reduces costs significantly as compared to traditional methods
  • Saves time in repair and replacement services
  • Eliminates sediment fallout and pipe damage which result from de-pressurization.
  • Protects water flow for customers, including emergency and operational services

Line Stop Materials & Sizes

The system works on any commonly used pipe including cast iron, asbestos-cement, steel, ductile iron and PVC.  We offer line stops from 4 inches to 16 inches, ranging up to 150 psi. We offer same or next day service in most cases.


Line Stopping Procedure and Process

Install line stop fitting.

a worker installs a line stopping fitting

Areas We Serve

Mickie Service Company has been providing water line services to the greater Houston area since the mid-1970s. We also offer many of our services nationwide, particularly to:

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