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New Castle County · Middletown, DE

Plumbers in Middletown, DE

Middletown is in New Castle County, Delaware. About 51,000 people live in the ZIP code we cover here, in roughly 18,000 homes, 69% of them single-family detached houses. The biggest share of the housing was built in 2000 or later (68%), and that age decides most of what goes wrong with the plumbing.

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  • 1 ZIP codes covered

ZIP codes we cover in Middletown

19709

Middletown homes and their plumbing

Here is how Middletown's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 2%, 1940–1959 2%, 1960–1979 4%, 1980–1999 23%, 2000 or later 68%. With so much newer construction, the plumbing itself is usually sound, and most calls are about water heaters, fixtures, pressure and clogs. Neighboring areas such as Bear, Newark, New Castle are covered too.

When Middletown homes were built
Year builtShare of homes
Before 1940
2%
1940–1959
2%
1960–1979
4%
1980–1999
23%
2000 or later
68%

Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.

Residents in covered ZIPs
50,542
Housing units
17,819
Single-family detached
69%
Owner-occupied
86%
Heated with utility gas
67%
Heated with electricity
22%
Heated with fuel oil
5%
Heated with propane
6%

What goes wrong in Middletown homes

Newer homes on their first water heater

68% of homes here were built in 2000 or later. Those houses usually have PEX or CPVC supply lines in good shape, so the work is on equipment: original tank water heaters past their 8 to 12 year service life, expansion tanks, pressure regulators and fixtures. See water heater replacement.

Natural gas in most homes

67% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.

Winter freezes

9% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a cold Delaware winter those are the lines that freeze and split. See frozen and burst pipe repair.

Common calls in Middletown

Also available in Middletown: emergency plumbing and every plumbing service.

Middletown at a glance

County
New Castle County
Nearest city pages
Bear, Newark, New Castle
ZIP codes
19709

Middletown plumbing FAQ

How old are the homes in Middletown?

In the ZIP codes we cover around Middletown, Census estimates put 5% of homes as built before 1960, 4% from 1960 to 1979, 23% from 1980 to 1999 and 68% in 2000 or later. The largest group is 2000 or later (68%).

Who licenses plumbers in Middletown, DE?

Delaware's Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners licenses plumbers.

Are water heaters in Middletown usually gas or electric?

Census data for the area show 67% of homes heating with utility gas, 22% with electricity, 5% with fuel oil and 6% with propane. Water heaters often use the same fuel as the home's heat, so utility gas is the most common here, but check the label on your tank before you shop for a replacement.

Guides for Middletown homeowners

Nearby areas

Also covered nearby: Odessa (3 mi), Townsend (4 mi), Port Penn (9 mi), Saint Georges (9 mi), Delaware City (11 mi), Clayton (12 mi), Smyrna (12 mi), Brookside (15 mi).

Housing, heating and population figures are US Census Bureau American Community Survey 2023 5-year estimates for the ZIP code areas we cover in Middletown, so they may include neighboring communities that share those ZIP codes.

Need a plumber in Middletown?

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