Looking for a slab leak plumber in Williston, ND? Describe your project once and up to three licensed plumbers who work in Williston and Williams County get back to you with a quote. It's free and there is no obligation.
Williston is home to about 28,821 people (2024 Census Bureau estimate), a shrinking community (−1.2% since 2020). With 1,120 people per sq mi, it is a suburban area. Many homes here are built on slabs, with copper or older lines running under the concrete.
Williston at a glance
- Population (Census Bureau estimate, 2024)
- 28,821 (−1.2% since 2020)
- Rank in North Dakota
- 6th of 355 cities and towns
- Land area
- 26 sq mi
- Population density
- 1,120 people per sq mi (suburban)
- Type
- City (Williston city)
- Main county
- Williams County
What to check before hiring in Williston
- Test the meter: turn off every fixture and watch the meter.
- License: in North Dakota, 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 Williston
-
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 Williston
How much does slab leak repair cost in Williston, ND?
It depends on detection, access and the repair method. Describe your situation: plumbers who serve Williston 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 Williston 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.