The City of Louisville serves its customers from two city water treatment plants, and few homes in town rely on private wells. If yours does, a plumber can test the pump, switch and tank; on city water, a pressure loss usually starts at the regulator, the service line or the fixtures. Call the number on this page to be connected with a local plumber in Louisville.
What to expect when you call
This is a free referral service, not a plumbing company. The number puts you in touch with an independent local plumber who works in Louisville. Describe what you're seeing: no water, weak water, pulsing pressure or a pump that won't stop. Say whether you're on city water or a well. If the problem looks citywide, Louisville Public Works is at (303) 335-4608, and the Operations Division on-call line after 3:30 p.m. is (303) 489-2301.
On a well, the plumber will check the breaker, the switch, the tank's air charge and the pump's current draw. On city water, they'll test static pressure and inspect the regulator and service line.
What sets the price
- For wells: a switch or capacitor versus pulling the pump, and the pump's depth
- For wells: whether the pressure tank needs replacing
- For city water: regulator replacement, valve work or a service line repair
- How much digging or wall opening it takes to reach the problem
- Plumbing inspection by the city's Building Safety Division where required
Louisville's water supply
Louisville is a former coal-mining town turned residential community in southeastern Boulder County, and hundreds of homes here were rebuilt after the December 2021 Marshall Fire. The city owns its water utility and runs two treatment plants, drawing surface water from South Boulder Creek, stored in Marshall Lake, Harper Lake or Louisville Reservoir, and from the Colorado River basin. The water is disinfected with chlorine rather than chloramine. The city's water report describes Louisville as served by its municipal system, with few homes on wells.
A rebuilt home has new plumbing, but even new systems can have a regulator set wrong or a fitting that wasn't fully tightened. An older home near the historic downtown may have older valves and lines. Either way, a pump only enters the picture if your property has its own well. If it does and you also have a city connection, the two must be kept separate, and backflow test reports in Louisville are filed through the city's contractor, Backflow Solutions, Inc.
Before anyone arrives
- Check whether the low pressure is at every fixture
- On a well, read the tank gauge and check the pump breaker
- On city water, look at the regulator for leaks
- Find the main shutoff
- Note whether the house was rebuilt recently and by whom
The City of Louisville Building Safety Division, (303) 335-4584, performs plumbing inspections and issues permits through its online portal.
Well Pump Repair questions in Louisville
How can I tell if my house is on a well or on public water?
Does a home with a private well need a backflow assembly?
Who do I call if the problem is on the utility side?
Why does my well pump click on and off every few seconds?
More plumbing services in Louisville
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