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Illinois · 18 covered places · 52 ZIP codes

Plumbers in Sangamon County, IL

We cover 18 cities and towns in Sangamon County, Illinois, across 52 ZIP codes, including Springfield, Chatham, Rochester. About 194,000 people live in those ZIP codes. 33% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.

When Sangamon County homes were built
Year builtShare of homes
Before 1940
16%
1940–1959
17%
1960–1979
30%
1980–1999
22%
2000 or later
15%

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

Largest covered places
PlaceResidents in covered ZIPsBuilt before 1960
Springfield137,95337%
Chatham15,3695%
Rochester5,57518%
Sherman5,4227%
Auburn5,07528%
Riverton4,92726%
Pawnee3,58534%
New Berlin2,69534%
Pleasant Plains2,15334%
Williamsville1,87136%

What goes wrong in Sangamon County homes

Natural gas in most homes

73% 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.

Pre-1960 homes: galvanized pipe and cast iron

33% of homes in Sangamon County's covered ZIP codes were built before 1960, 16% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.

1960s and 70s homes reaching end of life

30% of the housing here dates from 1960 to 1979. Original copper supply lines in those homes are now 45 to 65 years old, and cast iron drains of that age scale up inside and crack. Seized shutoff valves, pinhole leaks and recurring main-line clogs are common calls. A camera inspection shows the condition of the sewer line before anyone digs.

Long, hard winters

63% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a long Illinois winter those are the lines that freeze and split. See frozen and burst pipe repair.

Common plumbing work in Sangamon County

City pages in Sangamon County

Other covered towns in Sangamon County

  • Auburn (1 ZIP)
  • Buffalo (1 ZIP)
  • Cantrall (1 ZIP)
  • Chatham (1 ZIP)
  • Dawson (1 ZIP)
  • Divernon (1 ZIP)
  • Illiopolis (1 ZIP)
  • Loami (1 ZIP)
  • Mechanicsburg (1 ZIP)
  • New Berlin (1 ZIP)
  • Pawnee (1 ZIP)
  • Pleasant Plains (1 ZIP)
  • Riverton (1 ZIP)
  • Rochester (1 ZIP)
  • Sherman (1 ZIP)
  • Thayer (1 ZIP)
  • Williamsville (1 ZIP)

All of Illinois

Sangamon County plumbing FAQ

Which towns in Sangamon County do you cover?

18 places: Auburn, Buffalo, Cantrall, Chatham, Dawson, Divernon, Illiopolis, Loami, Mechanicsburg, New Berlin, Pawnee, Pleasant Plains, Riverton, Rochester, Sherman, Springfield, Thayer, Williamsville. Enter your ZIP code to confirm coverage for your street.

How old are homes in Sangamon County?

Across the covered ZIP codes, Census estimates put 33% of homes as built before 1960, 30% from 1960 to 1979, 22% from 1980 to 1999 and 15% in 2000 or later.

Who licenses plumbers in Sangamon County, IL?

The Illinois Department of Public Health licenses plumbers and plumbing contractors must register; Chicago adds its own requirements.

Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Sangamon County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.

Need a plumber in Sangamon County?

Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.

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