The Marshall Fire destroyed 553 homes in Louisville in December 2021, so the town now mixes historic houses near Front Street, 1980s and 90s neighborhoods, and new rebuilds.
Plumbing in Louisville
In the 1980s and 90s homes, original water heaters, fixtures, and supply lines are due. In the rebuilds, the plumbing is new, but new systems still need their first service calls: pressure-reducing valves, expansion tanks, and fixtures that weren't set quite right. Louisville's water comes from South Boulder Creek and the Colorado River, and the city had no mandatory watering restrictions in 2026.
Common Louisville calls
- Water heater replacement in 1990s homes
- Leaks and fixture repairs
- Punch-list plumbing in rebuilt homes
- Frozen pipes and hose bibs
- Backflow tests filed through BSI Online
Louisville is farther from our Denver base, so most work here is scheduled by appointment.
Louisville plumbing at a glance
| Water provider | City of Louisville: South Boulder Creek and Colorado River water, stored in Marshall Lake, Harper Lake, and Louisville Reservoir |
|---|---|
| Homes | Median year built 1991. The 2021 Marshall Fire destroyed 553 homes in Louisville, so many are new rebuilds. |
| Watering rules | No mandatory restrictions in 2026 |
| Backflow | The city uses BSI Online for backflow test reports |
Sources: Louisville 2026 water quality report; Census ACS 2019–2023 via Point2Homes; Louisville water restrictions. Checked October 2026.
Backflow testing in Louisville
Louisville requires annual backflow tests on commercial, multifamily, institutional, and irrigation connections, due Sept. 30 and filed through BSI Online.
First test $95 per device for new customers. Backflow testing in Louisville →
What we do in Louisville
- Drain cleaning and main sewer line clearing, including root cutting
- Water heater repair and replacement, tank and tankless
- Leak detection and repair, including slab leaks
- Frozen and burst pipe repair, same day for active leaks
- Backflow testing and repair, with the report for your water provider
- Sprinkler blowouts and spring startups
- Toilets, faucets, disposals, and shower valves
- Water softeners and whole-home filtration
Nearby
We also serve Superior, Lafayette, Boulder, Broomfield, and the rest of the Denver metro. See every city we serve →