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Delaware County · Delaware, OH

Plumbers in Delaware, OH

Delaware is in Delaware County, Ohio. About 59,000 people live in the ZIP code we cover here, in roughly 23,000 homes, 68% of them single-family detached houses. The biggest share of the housing was built in 2000 or later (38%), 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 Delaware

43015

Delaware homes and their plumbing

Here is how Delaware's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 15%, 1940–1959 6%, 1960–1979 16%, 1980–1999 25%, 2000 or later 38%. 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 Powell, Dublin, Westerville are covered too.

When Delaware homes were built
Year builtShare of homes
Before 1940
15%
1940–1959
6%
1960–1979
16%
1980–1999
25%
2000 or later
38%

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

Residents in covered ZIPs
59,027
Housing units
23,287
Single-family detached
68%
Owner-occupied
70%
Heated with utility gas
70%
Heated with electricity
23%
Heated with propane
5%

What goes wrong in Delaware homes

Natural gas in most homes

70% 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.

Newer homes on their first water heater

38% 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.

Long, hard winters

37% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a long Ohio winter those are the lines that freeze and split. See frozen and burst pipe repair.

Hard water

Ohio water is generally hard. With 70% of homes here on gas, scale settles as sediment in gas water heater tanks, which then rumble and wear out early, and newer homes with tankless heaters need yearly descaling. See water softener installation.

Common calls in Delaware

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

Delaware at a glance

County
Delaware County
Nearest city pages
Powell, Dublin, Westerville
ZIP codes
43015

Delaware plumbing FAQ

How old are the homes in Delaware?

In the ZIP codes we cover around Delaware, Census estimates put 21% of homes as built before 1960, 16% from 1960 to 1979, 25% from 1980 to 1999 and 38% in 2000 or later. The largest group is 2000 or later (38%).

Who licenses plumbers in Delaware, OH?

The Ohio Construction Industry Licensing Board (OCILB) licenses plumbing contractors; many cities also register them.

Are water heaters in Delaware usually gas or electric?

Census data for the area show 70% of homes heating with utility gas, 23% with electricity and 5% 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 Delaware homeowners

Nearby areas

Also covered nearby: Kilbourne (7 mi), Ostrander (7 mi), Radnor (8 mi), Ashley (11 mi), Galena (11 mi), Magnetic Springs (11 mi), Sunbury (11 mi), Waldo (12 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 Delaware, so they may include neighboring communities that share those ZIP codes.

Need a plumber in Delaware?

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