Cost of Water Main (Main Line) Replacement


A water main primarily transports water from a purification/ treatment plant to household consumers. Through the water main, consumers are able to connect to the water distribution network for their water supply. Water mains are a key aspect of an ideal water distribution network and must be maintained to avoid disruptions in the water supply. Older homes often need water main replacement to enjoy uninterrupted water supply, as old pipes get clogged, cracked, or broken, thus inconveniencing the homeowner. By replacing your water main, you can be able to receive fresh, clean water for home use. Moreover, the water pressure will also be great. So to help avoid problems caused by old, leaky, rusty and tire-looking water mains, you need to replace it.

Do- it- yourself water main replacement cost much less than hiring a professional plumber to get the job done. It can save you thousands of dollars in plumbing repairs. However, it is not the best option, especially if you lack any prior plumbing experience. Homeowners have, on several occasions, underestimated a water main replacement project and even termed it as “small”, only for it to explode, forcing them to dig deeper into their pockets to pay a professional contractor to fix it. It costs about $500-$1000 to replace a portion of a broken pipe. However, replacing the entire may could cost up to $1500 or even $5000, depending on the size and type of the water main pipe.

Do It Yourself Water Main Replacement

The main advantage of replacing the water main by yourself is that you can save on labour. Moreover, you can take care of the problem as soon as it occurs as long as you know what you are doing. On the other hand, the disadvantages include:

  • The project could demand too much of your time.
  • You may not have the right skills or tools to do it.
  • You could ruin the line.

All of these could cost you more money than you were willing to part with in the first place.

Hiring a Professional Plumber to Replace a Water Main

The major advantage is that professionals are well-versed, have the technical skills and experience, as well as state-of-the-art tools and equipment to complete the job. Unfortunately, they are not cheap. Always hire a professional to come and replace your water main, especially if you’ve never replaced one before. They charge at least $500 for their services. But replacing the entire water main line can cost between $2000-$3000, which can be worth it in the long run.

What to watch out for…

  • Ensure you use only the best/top quality brands for your water parts.
  • When selecting the best company to contract, have at least three estimates from three different companies so that you can make a decision that is in your best interest.
  • Referrals are a good place to start. Ask family, friends or fellow co-workers who did their last plumbing job well.
  • Perform thorough background checks on the company you wish to give your business.