Lexington businesses deal with one utility for almost everything, because the City runs the water, sewer, electric and natural gas systems. Backflow testing, sewer connections and gas service at a commercial building all tie back to City departments, and permits go through the City's Permit Portal. Call the number on this page to be connected with a local plumber in Lexington.
Lexington's buildings and the City utility
Lexington is the Davidson County seat, a former textile and furniture town with an uptown historic district and the Erlanger Mill Village. Its building stock is old: the median home dates to 1969, and about two-thirds went up before 1980. Commercial space in the uptown blocks and older mill-era buildings tends to bring the same issues as an old house, only with more fixtures and heavier daily use.
The City of Lexington owns its water, sewer, electric and gas systems, and they reach customers beyond city limits in Davidson County. Water comes from Lake Thom-A-Lex and is treated at two plants off Old Greensboro Road; the 2025 report lists no violations. Wastewater goes to the City plant on Glendale Road, rated at 6.5 million gallons a day.
The cross-connection policy is the City rule most businesses run into. Backflow devices at the service connection must be tested at least once a year by a City-approved certified tester, at the customer's cost, and every irrigation system needs RPZ-type protection.
Typical commercial jobs in Lexington
| Job | What usually prompts it | What to plan for |
|---|---|---|
| Annual backflow test | City testing requirement | A City-approved tester, plus repair parts if the device fails |
| Drain or main line clearing | Slow sinks, floor drains backing up | Cable or jetter, and a camera if it keeps coming back |
| Older pipe replacement | Leaks or weak flow in an older building | Opening walls or ceilings, and a City permit |
| Gas appliance hookup | New water heater or kitchen equipment | Coordination with the City's gas utility |
Signs a Lexington property needs a plumber
- Sewer odor near a floor drain or cleanout
- Several fixtures backing up at the same time
- Discolored water from only one part of the building, which often points to old interior pipe rather than the City supply
- Running toilets or urinals pushing up the water bill
Timing and seasonal notes
Book the yearly backflow test well before it's due so there's time to repair a device that fails. Older buildings with pipes in unheated spaces deserve a look before the first hard freeze. If anyone smells gas, leave the building and call 911 or the City's gas utility from outside. Plumbing, mechanical and electrical permit applications go through the City's online Permit Portal, run from City Hall on West Center Street, and the plumber usually files them.
Commercial Plumbing questions in Lexington
How often do backflow assemblies at a business have to be tested?
What should staff do if they smell gas inside the business?
Which office handles plumbing permits for commercial work here?
Can repairs be scheduled outside our business hours?
More plumbing services in Lexington
Commercial Plumbing nearby
Helpful guides
Sources
- Wikipedia: Lexington, North Carolina
- Point2Homes: Lexington demographics (ACS)
- City of Lexington: about city government
- City of Lexington 2025 water quality report
- City of Lexington: wastewater treatment plant
- City of Lexington cross-connection and backflow policy
- City of Lexington: permitting
- City of Lexington: utility rate schedules
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