Larkspur's Town Public Works provides water from Denver Basin aquifer wells and runs the wastewater system, the Town issues its own building permits, and Black Hills Energy supplies gas. Plumber Denver CO is a free referral line that connects callers with independent plumbers. Call the number on this page to be connected with a local plumber in Larkspur.

Plumbing services in Larkspur
The Renaissance Festival town on I-25
Larkspur is a home rule town in southern Douglas County, incorporated in 1979, with just 206 residents inside town limits at the 2020 Census, though the 80118 ZIP covers several thousand more. It lies in the East Plum Creek valley along I-25, about 11 miles south of Castle Rock and 35 miles from downtown Denver. It is best known as home of the summer Colorado Renaissance Festival.
Aquifer wells instead of surface water
Within town limits, Larkspur's Public Works Department runs the water system under a Water and Sewer Board, and the system is operated under contract by Semocor, Inc. The water comes from three Denver Basin wells, one in the Denver aquifer and two in the Arapahoe aquifer, not from a river or reservoir. The Town posts its water quality report through its Public Works page.
For a water emergency inside town limits, call Town Hall at (303) 681-2324 during business hours, and Semocor at (303) 681-2253 after hours. Homes elsewhere in the 80118 ZIP aren't covered by the Town system and may be set up differently.
Sewer
The Town bills water and sewer together, and Public Works operates the wastewater system within town limits. Drain backups inside the house and in the private line out to the main are plumbing repairs; trouble in the main itself goes to the Town.
Permits from the Town, not the county
Inside town limits, the Town of Larkspur Building Department at 8720 Spruce Mountain Road processes building permits and SAFEbuilt handles inspections (720-641-1956). Douglas County doesn't issue permits for addresses inside town. The Town's page doesn't mention plumbing permits specifically, so check with the Building Department before replacing a water heater. Properties outside town limits go to Douglas County.
Black Hills Energy for gas
Black Hills Energy serves Larkspur. If you smell gas, leave the building first, then call 911 and Black Hills Energy from outside; the number is printed on your gas bill. After the utility clears the leak, a plumber can repair gas piping or reconnect appliances.
Larkspur compared with Denver
Denver drinks mountain snowmelt delivered by Denver Water and uses Xcel gas. Larkspur pumps from deep aquifer wells, relies on a contract operator for after-hours water calls and buys gas from Black Hills Energy. Housing-age data for the town wasn't available, so ask the plumber what your pipes are made of while on site. Winters in the Plum Creek valley bring hard freezes too. When you call the number on this page, describe what is wrong and you'll be connected with an independent plumber who works in Larkspur. You and the plumber settle the price and timing.
Common questions in Larkspur
Where does Larkspur's water come from?
Who do I call about a water emergency in Larkspur after hours?
Does Douglas County issue permits in Larkspur?
What gas company serves Larkspur?
Nearby cities and towns
Sources
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