Cole's Plumbing has served Lewisville homes and businesses for more than 24 years. Cole's Plumbing is led by a Responsible Master Plumber (Texas license RMP-40414), the senior credential under Texas law for the plumber legally accountable for the quality and safety of a company's work. When you call Cole's, the person responsible for the work is the same person who answers the phone.
Lewisville is one of the larger cities in our service area, with housing that spans nearly every era of DFW development, from mid-century homes near Old Town and the lake to recent master-planned communities further west. That range of home types, ages, and locations creates a wide variety of plumbing situations, and we've worked on every kind here.
Lewisville sits in Denton County along the southern shore of Lake Lewisville and runs along the I-35E corridor. The city operates its own water treatment plant drawing directly from Lake Lewisville, which gives it a distinct water profile compared to nearby cities supplied by Dallas Water Utilities or other regional sources. Lewisville's geography also varies considerably: some neighborhoods sit on elevated terrain near the lake, others on flatter land closer to the interstate.
Pre-1970s homes in Old Town Lewisville and near the lake often have pier-and-beam foundations, galvanized supply lines, and cast iron drains. Many have been renovated over the decades but still carry original plumbing infrastructure that is now well past its service life.
1970s through early 2000s homes across most of Lewisville sit on slab foundations with copper supply lines running through the slab. These homes are in the age range where slab leaks become more common, particularly with the shifting clay soils common to the area.
Post-2000s homes in newer Lewisville developments typically use PEX supply lines, which handle hard water and soil movement better than copper. These homes have fewer slab leak risks but can still develop issues at water heaters, fixtures, and the main sewer line.
Lewisville is unusual in DFW because the city operates its own water treatment plant on Lake Lewisville, drawing surface water directly from the lake rather than purchasing it from a regional supplier. Hardness typically runs around 146 parts per million, which is moderately hard. That hardness leaves scale deposits on water heater elements, fixtures, and inside pipes. Over years, it shortens water heater life, restricts flow, and reduces efficiency. Many Lewisville homeowners benefit from a water softener or whole-home filtration system, especially if they have a tankless water heater (which is more sensitive to scale than tank-style units).
Flush your water heater annually. Hard water leaves sediment at the bottom of the tank. Annual flushing extends water heater life by years and improves efficiency.
Exercise your shut-off valves. The valves under sinks, behind toilets, and at the water heater rarely get used. They seize up over time. Turn them off and on once a year so they actually work when you need them.
Know where your main shut-off is. In an emergency, every minute counts. Find your main water shut-off valve before you need it. In most Lewisville homes, it's at the meter box near the street or where the main line enters the house.
Watch your water bill. A sudden jump in your bill with no change in usage is one of the earliest signs of a slab leak. Don't wait for visible damage.
Disconnect outdoor hoses before a freeze. A connected hose can freeze water back into the bib and burst the line inside your wall. Disconnect before the first hard freeze each winter.
Pay attention if your home sits near the lake. Lakefront and elevated lots in Lewisville can experience different water pressure and drainage patterns than flat-lot neighborhoods. If you notice fluctuating pressure or slow drains, get them checked rather than ignored.
Plan ahead for water heaters past 10 years old. Most tank water heaters last 8 to 12 years in Lewisville's water. If yours is approaching that range, plan the replacement before it fails. A failed water heater leaks, and a leak in the wrong place causes real damage.
Significant plumbing work in Lewisville requires a permit from the City of Lewisville Building Inspections. Water heater replacements, repipes, gas line work, sewer line repairs, and new construction all typically require permits and inspections. As a licensed Master Plumber, Cole's Plumbing handles permitting on your behalf when the job requires it. You can review Lewisville's permit requirements through the city's MGO Connect portal at cityoflewisville.com.
Water heater repair, replacement, and tankless installs. Slab leak detection and repair. Drain cleaning and sewer line work. Repipes and gas lines. Water softeners and whole-home filtration. Faucet, fixture, and disposal service. New construction plumbing. Emergency response, day or night.
If you need a Master Plumber in Lewisville, call us at (972) 210-9033 or contact us to schedule service. Licensed RMP-40414. Family-owned. 24+ years serving DFW.
