Mercer County · Trenton, NJ
Plumbers in Trenton, NJ
Trenton is in Mercer County, New Jersey. About 235,000 people live in the 26 ZIP codes we cover here, in roughly 94,000 homes, 44% of them single-family detached houses. The biggest share of the housing was built between 1940 and 1959 (27%), and that age decides most of what goes wrong with the plumbing.
- Same-day service when a plumber is available
- 26 ZIP codes covered
ZIP codes we cover in Trenton
08601, 08602, 08603, 08604, 08605, 08606, 08607, 08608, 08609, 08610, 08611, 08618, 08619, 08620, 08625, 08628, 08629, 08638, 08645, 08646, 08647, 08650, 08666, 08690, 08691, 08695
Trenton homes and their plumbing
Here is how Trenton's homes break down by year built, based on Census estimates for the covered ZIP codes: before 1940 23%, 1940–1959 27%, 1960–1979 24%, 1980–1999 15%, 2000 or later 11%. With that many older homes, original galvanized supply pipe and cast iron or clay drains are still common, so leaks, rust and root intrusion come up often.
| Year built | Share of homes |
|---|---|
| Before 1940 | 23% |
| 1940–1959 | 27% |
| 1960–1979 | 24% |
| 1980–1999 | 15% |
| 2000 or later | 11% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
- Residents in covered ZIPs
- 234,701
- Housing units
- 93,869
- Single-family detached
- 44%
- Owner-occupied
- 59%
- Heated with utility gas
- 72%
- Heated with electricity
- 19%
- Heated with fuel oil
- 6%
What goes wrong in Trenton homes
Pre-1960 homes: galvanized pipe and cast iron
50% of homes in Trenton's covered ZIP codes were built before 1960, 23% 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.
Natural gas in most homes
72% 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
74% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a cold New Jersey winter those are the lines that freeze and split. See frozen and burst pipe repair.
Apartments, condos and attached homes
Only 44% of homes here are single-family detached houses. In attached buildings a leak or clog often involves a shared stack or a neighbor's unit, so it's worth knowing which lines are yours and which belong to the building or HOA, and where your unit's own shutoff is.
Common calls in Trenton
- Whole-House Repiping
- Gas Line Repair
- Frozen & Burst Pipe Repair
- Drain Cleaning
- Water Heater Replacement
- Main Water Line Repair
- Sewer Line Repair
Also available in Trenton: emergency plumbing and every plumbing service.
Trenton at a glance
- County
- Mercer County
- ZIP codes
- 08601, 08602, 08603, 08604, 08605, 08606, 08607, 08608, 08609, 08610, 08611, 08618, 08619, 08620, 08625, 08628, 08629, 08638, 08645, 08646, 08647, 08650, 08666, 08690, 08691, 08695
Trenton plumbing FAQ
How old are the homes in Trenton?
In the ZIP codes we cover around Trenton, Census estimates put 50% of homes as built before 1960, 24% from 1960 to 1979, 15% from 1980 to 1999 and 11% in 2000 or later. The largest group is 1940–1959 (27%).
Who licenses plumbers in Trenton, NJ?
The New Jersey State Board of Examiners of Master Plumbers licenses master plumbers; check a license through the Division of Consumer Affairs.
Are water heaters in Trenton usually gas or electric?
Census data for the area show 72% of homes heating with utility gas, 19% with electricity, 6% with fuel oil. 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 Trenton homeowners
Nearby areas
Also covered nearby: Bordentown (6 mi), Lawrence Township (6 mi), Robbinsville (6 mi), Pennington (7 mi), Roebling (7 mi), Titusville (8 mi), Chesterfield (9 mi), Allentown (10 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 Trenton, so they may include neighboring communities that share those ZIP codes.
Need a plumber in Trenton?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.