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What's the Average Cost to Repair a Broken Water Main?

Having a water main break can be devastating to any homeowner. Such a catastrophe can easily result in flooding of the home as well as severe damage to a home's structure and the owners' personal belongings. When a water main break occurs, it is important to act as quickly as possible so as to prevent long term damage and get the problem resolved right away. This involves contacting a professional plumber as soon as it becomes clear that there is a problem. These days, many plumbing companies offer 24/7 emergency services, so homeowners should keep this in mind in case a water main break occurs over night.

National Repair a Water Main Costs

Cost data is based on actual project costs as reported by ImproveNet members.

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Average reported cost

based on 765 cost profiles


Minimum cost


Maximum cost

Most homeowners spent between:




National Repair a Water Main Costs
Average reported cost $792
Number of Cost Profiles 765 cost profiles
Minimum reported cost $60
Maximum reported cost $2,900
Most homeowners spent between: $404 to $751

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Common Causes of Water Main Breaks

There are many factors that can ultimately lead to a water main break. One of the most common problems is having old pipes. Over time, it is possible for the pipes to rust and corrode, which can eventually lead to the pipe bursting altogether. For this reason, homeowners are always encouraged to have their pipes inspected not only upon moving into a home, but on an annual basis as well. This way, old and rusting pipes can be replaced as needed to save on costly repairs down the road.

Water mains often leak slowly before they actually break, so homeowners should monitor their monthly water usage and make note of any significantly increased use. Such an increase could be the sign of a pipe that is leaking and about to burst.

Average Costs to Repair A Broken Water Main

In the event of a water main break, emergency plumbing services will be needed. The average cost of a water main repair following a rupture ranges between $800 and $1,100 per incident. The cost can vary greatly based on the severity of the damage and the location of the repair since plumbing and repair costs are not consistent nation wide. At most, homeowners should expect to spend no more than $2,000 on a water main break repair.

Dealing with a water main break on one's property can be a serious hassle, which is why preventative maintenance on one's pipes and plumbing is always recommended. Paying for small repairs over time is a lot better than being stuck with a huge bill that could have been prevented.

Last updated on Jan 12, 2017

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