24/7 emergency service available across Wilmington and the tri-state area Free estimates (302) 750-0115
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Our Home City

Local Plumbing Help for Wilmington, DE Homes and Businesses

Wilmington is our home base. From Trolley Square row homes to offices downtown, Supreme Plumbing Services fixes leaks, heaters and old pipes. Call (302) 750-0115, with 24/7 emergency service available.

Plumbing Work We Handle Across the City

We focus on three needs that matter in Wilmington homes: hot water, aging pipes and water quality. Many streets here were built in the late 1800s and early 1900s, so the plumbing behind the walls may have been patched many times. We look at the whole system before we suggest a fix, and we tell you what can wait.

When the supply pipes in an older house are rusting from the inside, whole house repiping restores pressure and ends the cycle of small leaks. A tank that leaks or runs cold gets a careful diagnosis through our water heater repair service. Old clay or cast iron drains under city lots can crack or fill with roots, and our sewer line repair work finds the break with a camera first.

Some homeowners also want better tasting water from the tap, and a water filtration system can help. If a pipe bursts at night, our emergency plumber service answers 24/7.

24/7 Emergency service

Know Your City

Old Pipes, Brandywine Water and Cold Winters

Wilmington has nine historic districts, and much of its housing predates modern plumbing codes. Parts of Trinity Vicinity hold row homes from the late 1800s, and The Flats was built in 1901 as homes for working families. Houses this old can hide a mix of galvanized steel, copper and newer plastic, joined wherever an earlier repair stopped.

Your tap water starts in Brandywine Creek. The city treats it at the Porter Filter Plant, with Hoopes Reservoir held as storage, and sends it through miles of mains to homes in the Highlands, Little Italy, Wawaset Park and Forty Acres. We work on everything from the shutoff valve inward, where most household problems begin.

Winter matters here too. The average January day sits close to freezing, and cold snaps can drop toward 10 degrees. Pipes on outside walls, in crawl spaces and in unheated porches freeze first, so we insulate them and move them where we can.

Hot Water and New Pipes in Tight City Houses

City row homes share walls and often have small basements with low ceilings. A water heater may sit in a narrow corner beside the stairs, with little room to work. We plan each replacement around that space, and we check the venting on gas units so fumes leave the house the way they should.

Repiping a row home takes the same kind of care. We open as little wall as we can, run new lines along the shortest path, and close up so you can patch and paint. Most homes keep running water for much of the job, and we tell you ahead of time when it must be off.

Older houses can also have a mix of lead, galvanized and copper service lines. If you are not sure what feeds your home, we can look at the line where it enters the basement and tell you what we see. That answer helps you plan, whether you replace the line now or later.

Other Towns We Serve From Our Wilmington Base

From Wilmington we travel to towns in three states. If you have family, a second home or a rental property nearby, these town pages cover the plumbing needs of each one. Each page explains local water, housing and the services people there ask about.

Conditions change considerably once you leave the city. Private wells become common across rural Chester County and Cecil County, newer subdivisions dominate around Middletown, and colonial architecture defines historic New Castle. Our recommendations reflect those differences instead of applying one approach everywhere, whether the job is a water heater, a well treatment system or a complete repipe.

Wilmington Questions

What Wilmington Homeowners Ask Us

Should I replace the old pipes in my Wilmington row home?

Not always. Galvanized steel pipe in an older row home tends to rust from the inside, which lowers pressure and causes pinhole leaks. If you see brown water or weak flow on upper floors, an inspection shows how far the damage goes. Sometimes one section is enough, and sometimes a full repipe is the better long term choice.

How do I keep pipes from freezing in a Wilmington winter?

Keep the heat on, even when you travel, and open cabinet doors under sinks on outside walls during cold snaps. Disconnect garden hoses and shut off outdoor spigots from inside before the first hard freeze. If a pipe does freeze, turn off the main water valve and call us before it splits.

Who is responsible for a leak between the street and my house?

The city water system runs the mains under the street, while the homeowner usually owns the plumbing inside the house. The service line between them can be a shared question, so check with the city water office if the leak is outside. Inside the home, from the shutoff valve on, we can find and repair it.

Do you work on commercial buildings in downtown Wilmington?

Yes. We handle commercial plumbing for offices, shops and restaurants in the city, along with residential work. That includes larger water heaters, backflow devices, grease traps and restroom fixtures. Call (302) 750-0115 to describe the building and the problem, and we will set up a visit that works around your business hours.

Your Neighbors Down the Street, Ready When You Call

We are based right here in Wilmington, and your call reaches a local plumber who knows these streets. Call Supreme Plumbing Services at (302) 750-0115, or browse all of our service areas if the job is outside the city.

24/7 emergency service available

(302) 750-0115