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Plumber in League City, TX
Alliance Plumbing has served League City homeowners for two decades, from South Shore Harbour to the newer builds in Tuscan Lakes. We know the neighborhoods, the slab-on-grade quirks, and which water-main valves the city forgets to mark on its maps. Whether it is a slab leak, a failing water heater, or a sewer line shifting in the clay soil, we quote it straight and fix it right.
Local response
~42 min
Average arrival time from our Webster shop to League City.
Same-day service Available
Fast emergency response Yes
Out-of-area fees None
Serving League City & nearby
All plumbing services near League City, TX
Serving League City
Every plumbing service we offer
— at your address.
All four service categories are fully available across League City, including Magnolia Creek and the newer builds off League City Parkway. Not sure whether you need a repair or a replacement? Tell us what is happening and we will tell you honestly. Click through to learn more or book a specific service.
General Plumbing
From silent slab leaks to dripping faucets, gas line work, and full repipes of original polybutylene, our licensed plumbers find the root cause and quote a flat, upfront price before any work starts.
Water Heaters
Tankless or traditional, gas or electric. We install, repair, and replace water heaters the same day in most cases, and tell you when a 12-year-old unit is worth replacing instead of repairing.
Sewer & Drain
Every sewer or drain visit starts with a camera inspection, so you see the tree roots, clay-soil shift, or blockage exactly as we do before anyone digs.
Plumbing Remodeling
We work alongside your designer or contractor to rough-in and trim out kitchens, bathrooms, additions, and outdoor kitchens — keeping your project on schedule and to code.
About League City
What we see in League City homes.
League City is a Galveston County community we have worked in since the early 2000s, from the ’80s-era homes of Bay Colony to newer construction in Mar Bella and Westover Park. That mix of older slab-on-grade homes from the ’70s and ’80s and brand-new builds means our calls here range from slab leak diagnostics under a decades-old foundation to first-time tankless installations in a house still under warranty.
The three things we fix most in League City: original-builder polybutylene pipe still in service, water heaters reaching the end of their 12-year lifespan, and sewer lines that have shifted with the clay soil. On polybutylene, we will tell you whether a repair buys you a few more years or a whole-home repipe is the better long-term value. On water heaters, we help you weigh a same-day repair against replacing an aging unit. And if you have a burst pipe or a sewage backup right now, shut off your main water valve, stop running water, and call us. We keep same-day slots open for exactly that.
600+ five-star reviews
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From League City homeowners
Your League City neighbors trust Alliance
“Kelly’s crew arrived 30 minutes after I called about no hot water on a Sunday morning. They explained every option, gave a fixed price, and had a new tankless running by dinner. I haven’t run out of hot water since.”
“Our water bill doubled overnight. Alliance found the slab leak in 20 minutes with their listening equipment, gave us two options to fix it, and didn’t pressure us into the expensive one. Top to bottom professional.”
“Hired Alliance for the plumbing on a full primary bath remodel. They worked perfectly alongside our contractor, kept the site spotless, and the trim-out is beautiful. Will absolutely use them again on the kitchen.”
On the map
Plumbers serving League City, TX
Let’s get this scheduled.
Same-day availability in most cases. After-hours? It’s easy to book online, or try our AI answering agent to get on the schedule.