Water Main Repair Services

Your water main is the underground supply line that brings water from the city (or your well) into your home. When it breaks or leaks, the signs can be dramatic — a soggy spot in the yard that won't dry out, a water bill that suddenly doubled, or water pressure that dropped or disappeared entirely. In older Charleston-area homes with galvanized or aging copper supply lines, water main issues aren't uncommon.

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At Yeehaw Plumbing, we handle water main repair and replacement across Summerville, Charleston, and the surrounding Lowcountry. We locate the leak, expose only what we have to, make the repair, and get your water back on as quickly as possible.

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Call (843) 509-6943 and we'll get someone out to take a look.

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Common Causes of Water Main Problems

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Water main failures in the Lowcountry are usually one of a few things:

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• Corrosion in aging galvanized or copper supply lines
• Ground movement from our sandy, shifting coastal soil
• Tree roots pushing into or wrapping around the line
• Freeze damage from a rare Lowcountry cold snap
• Damage from nearby construction or landscaping
• Old joints or fittings finally giving way after decades of service
• Municipal pressure spikes that stress an already-weak line

If your home is more than 30 years old and the supply line has never been replaced, it's worth having someone take a look before it fails on its own schedule.

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Signs You May Have a Water Main Issue

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Water main problems don't always show up dramatically. Some early warning signs to watch for:

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• A wet or soggy spot in your yard that doesn't dry out, even in dry weather
• Water bill jumped without any change in usage
• Low water pressure at all fixtures in the house
• Pressure that came on gradually lower over weeks or months
• Rust-colored or discolored water at the tap
• Sound of water running when nothing is turned on
• A sinkhole or depression forming in your yard
• Your water meter is spinning when everything is turned off

If you're seeing any of these, don't wait — a slow leak can turn into a full break, and the repair only gets more expensive the longer you wait.

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Our Water Main Repair Process

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Every water main call starts with figuring out where the problem actually is. Sometimes it's obvious — water bubbling up in the yard makes it easy. Other times it's subtle and takes locating tools to pinpoint.

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Our process:

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• Locate the break or leak using pressure testing and visual inspection
• Determine whether a spot repair or full replacement makes more sense
• Get the necessary utility locates so we don't hit gas, power, or other underground lines while digging
• Dig only where we have to — usually a targeted excavation, not a trench across your whole yard
• Cut out the damaged section and install new pipe (usually copper or PEX)
• Pressure test the repair before backfilling
• Backfill and restore the ground as best we can — we'll flag if you need a landscaper to finish the job

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If the whole line is corroded and repairs keep stacking up, full replacement is usually the more cost-effective call. We'll walk you through what makes sense for your situation.

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Water Main Repair vs. Plumbing Pipe Repair — What's the Difference?

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Water main repair is for the underground supply line between your water source (city or well) and your home. It's usually one long run of pipe, buried a few feet down, with fewer joints and more exposure to soil, roots, and weather.

Interior plumbing pipe repair is for the lines inside your home — under sinks, behind walls, in ceilings, or in the crawl space. Different location, different tools, different price range.

If water is coming up from the yard or you've lost pressure to the whole house, that's a water main issue. If a specific fixture is dripping or leaking, or if you see water damage inside the house, that's usually interior pipe repair.

Not sure which you need? Call us and describe what you're seeing. We can usually figure it out over the phone.

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What to Do While You Wait for a Plumber

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If you suspect a water main issue, here are a few things to do before we arrive:

• Turn off your home's main water valve if you can safely reach it (usually near the meter or where the line enters the house)
• Take photos of any wet spots in the yard for our reference and for insurance
• Note the exact spot where you first saw water pooling or a wet area
• Keep vehicles and heavy equipment off the affected area of the yard
• If water is still flowing and you can't shut it off, call your utility to shut off at the meter
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A quick call to (843) 509-6943 and we can walk you through the shutoff over the phone if you're having trouble.

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Serving Homes Across the Lowcountry

We provide water main repair throughout:

• Summerville
• Goose Creek
• Charleston
• North Charleston
• Mount Pleasant
• Ladson
• James Island
• Johns Island
• West Ashley

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No matter where you are in the area, our team is ready to help.

Water main giving you trouble? For water main repair across Summerville and the greater Charleston area. Honest, upfront pricing — you'll know the cost before we start digging.

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Not sure which you need? Call us and describe what you're seeing. We can usually figure it out over the phone. Water main repair is one of our core plumbing repair services — check the full list if you're dealing with something else.

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Frequently Asked Questions

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Q: What is a water main and where is it?

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‍A: Your water main is the underground pipe that carries water from the city supply (or your well) to your home. It typically enters the house near your meter and runs a few feet underground. On municipal supply, the utility owns the line up to the meter — after that, it's your responsibility.

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Q: How much does water main repair cost in Summerville, SC?

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‍A: It depends on where the break is, how deep the line is, how much digging is needed, and whether we're doing a spot repair or full replacement. Water main jobs generally cost more than interior plumbing repairs because of the excavation work. We give upfront pricing before starting.

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Q: How long does water main repair take?

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‍A: A straightforward spot repair usually wraps up in a few hours. A full replacement can take a full day or more, depending on the length of the line and what's above it (driveways, sidewalks, trees). We'll give you a realistic timeframe once we've assessed the job.

Q: Will you have to dig up my whole yard?

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‍A: No, not usually. We use locating tools to pinpoint the leak so we can dig a targeted hole rather than a trench across the yard. Full replacements do require more digging, but even those we try to minimize.

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Q: Who's responsible for the water main — me or the city?

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‍A: On municipal supply, the utility is responsible for the line up to the meter. From the meter to your house, it's yours. If the leak is on the utility's side, they'll fix it. If it's on your side, that's what we handle.

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Q: Can water main leaks damage my home's foundation?

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‍A: Yes, over time. A leaking water main under or near your foundation can wash out supporting soil, cause slab settling, or lead to cracks. Sandy Lowcountry soil is especially prone to this because it shifts easily when saturated.

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Q: How do I know if it's a water main leak or something else?

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‍A: The clearest sign of a water main leak is a wet spot in the yard that won't dry out, especially between the meter and the house. If you're only seeing water inside the house, it's probably interior plumbing. If you're not sure, we can pressure test to figure it out. If a pipe has fully burst and water is spraying, that's an emergency — see our burst pipe repair page for what to do.

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Q: Can you replace an entire water main line?

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‍A: Yes. If your line is old and repairs are stacking up, we can replace the whole supply line from meter to house. New water mains use copper or PEX and should last decades.

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Q: Will I have water while you're working?

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‍A: You'll be without water during the actual repair, which is usually a few hours for a spot repair. If we're doing a full replacement, water may be off for most of a day. We'll give you a heads up so you can plan.

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Q: My water bill is high but I don't see any water in the yard. Could it still be the main?

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‍A: Possibly. Not every water main leak surfaces — the water can travel underground and drain away without ever showing up on top. If your water bill jumped and you can't find the source inside the house, a pressure test on the main is worth doing.

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