How Much Does It Cost to Repair a Main Water Line?

Justine Harrington
Reviewed by Joseph Wood
Updated June 9, 2022
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  • The cost to repair a main water line is $900 on average.

  • Cost is dependent on the type of repair needed, labor, and materials.

  • You should always hire a plumber to repair your water main.

  • Scheduling an inspection every two to five years can help ensure your water main lasts for decades.

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Residential water line repair can be a mighty unwelcome surprise, which is why it’s so important to have realistic expectations when it comes to cost. The cost to repair a main water line is $900 on average. The exact figure essentially depends on the repair, labor, and material costs.

National Average CostMinimum CostMaximum Cost

How Much Do Main Water Line Repairs Cost?

Repairing your home’s main water line costs $900 on average. You can generally expect to pay anywhere from $300 to $1,500 or $70 to $120 per hour. You’ll also need to budget for materials like valves, bushings, and pipes.  

Main Water Line Repair Cost Breakdown

Your overall budget will consist of material and labor, which tend to fluctuate depending on your location, the nature of the project, and the materials needed to remedy the problem. 

Also, you’ll need to call your town or city to determine who is responsible for the portion that goes beyond your property line. Keep reading for more on the factors that influence the cost of repairs.


Materials generally include new sections of pipe, bushings, and valves. The type of piping you have and the diameter of the piping greatly influence the cost. 

  • Copper: $2 to $8 per linear foot.

  • CPVC: $0.50 to $1 per linear foot.

  • PEX: $0.40 to $2 per linear foot.


Labor costs vary by region, but you can typically expect to pay between $70 and $120 per hour. Contact a plumber in your area for an exact quote.

Type of Repair Needed 

Most water main repairs fall under three categories: valve replacements, corrosion fixes, and pipe breaks. Expect to pay between $150 and $700 for leaky valve repairs. Replacing a valve costs $150 to $300, depending on its location. 

A cracked pipe can cost anywhere from $500 to $1,000, while a broken pipe runs between $500 and $5,000. Corroded pipe repair costs from $600 to $5,000. This is on the expensive end of the spectrum because you’ll need to have all corrosion removed and replaced (which usually means replacing the entire pipe).

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Cost to Repair a Water Main Yourself

You may be wondering if you can repair a water main yourself, but you’ll need to hire a plumber near you to get the job done. Most towns and municipalities will only allow licensed plumbing professionals to repair a main water line. Plus, you run the risk of costly pipe repairs if you try to repair or replace your own water line.

Main Water Line Repair Cost Questions and Answers

What are some signs of a damaged water main?

You should repair a damaged water main as soon as you spot it. Here are some of the most common signs that indicate repairs are needed:

  • Puddles/standing water in your yard 

  • Water pressure suddenly decreases

  • Cracks begin to appear in your foundation

  • Frequent clogs in your plumbing 

  • Water is smelly or rust-colored

How do I know for sure that there’s something wrong with my water main?

If you want to determine whether there’s something wrong with your water main (and what that something is), a professional inspection is in order. On average, plumbers charge $165 for this service, though rates may vary depending on location. 

If you’re wondering what to expect during a home plumbing inspection, the plumber will check all of the pipes in your home, gauge their condition, and identify any problem areas.  

How long can I expect my water main line to last? 

Most main water lines last around 50 years or more, as long as they’re in good condition.

How can I protect my water main from future damage?

It’s important to schedule an inspection every two to five years to ensure nothing is wrong with your line. And, be on the lookout for low water pressure, soil erosion, or puddles in your yard. These are sure signs of a damaged water line. How much does it cost to replace a main water line?

On the other hand, replacing a water line costs$2,000 to $10,000 or more. Expect to pay anywhere from $50 to $250 per linear foot to replace the pipe.

How long does it take to repair a broken main water line?

Depending on how easy or complex the problem is, a broken main water line takes 4 to 8 hours to repair.

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