The answer to the cost of water line repair in your area is that it can vary significantly depending on several factors. Generally, water line repair costs can range from a few hundred dollars for a minor fix up to several thousand dollars for a more extensive repair or replacement.
Some of the key factors that influence the cost include the length and depth of the water line, the material it's made of, the complexity of the repair, the cost of labor in your local area, and whether any landscaping or excavation work is required. It's important to get quotes from multiple licensed plumbers in your local area to get an accurate estimate for your specific situation.