Looking for a slab leak plumber in Ontario, OH? Describe your project once and up to three licensed plumbers who work in Ontario and Richland County get back to you with a quote. It's free and there is no obligation.
Ontario is home to about 6,648 people (2024 Census Bureau estimate), a stable community (−0.2% since 2020). With 600 people per sq mi, it is a semi-rural area. Many homes here are built on slabs, with copper or older lines running under the concrete.
Ontario at a glance
- Population (Census Bureau estimate, 2024)
- 6,648 (−0.2% since 2020)
- Rank in Ohio
- 220th of 923 cities and towns
- Land area
- 11 sq mi
- Population density
- 600 people per sq mi (semi-rural)
- Type
- City (Ontario city)
- Main county
- Richland County
What to check before hiring in Ontario
- Test the meter: turn off every fixture and watch the meter.
- License: in Ohio, slab repairs are done by state-licensed plumbers.
- Insurance: call your insurer early and document the damage.
- Price drivers: detection, access, repair method and floor restoration.
Useful official resources
-
EPA WaterSense: fix a leak
Official information and guidance.
-
IAPMO
Official information and guidance.
Services available in Ontario
-
Slab leak detection
Electronic and acoustic leak detection under a concrete slab.
-
Slab leak repair or reroute
Spot repair through the slab or rerouting of the line through walls or attic.
Frequently asked questions in Ontario
How much does slab leak repair cost in Ontario, OH?
It depends on detection, access and the repair method. Describe your situation: plumbers who serve Ontario reply with a quote.
Is it an emergency?
Shut off the water if damage is spreading; many plumbers offer fast service.
How long does a reroute take?
Often one to a few days.
Which licensed plumbers will contact me?
Up to three independent licensed plumbers who serve Ontario and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.