Castle Rock gets natural gas from Black Hills Energy, so if you smell gas, leave the house, call 911, then call Black Hills Energy at the emergency number on your bill. For leaks after the meter and new appliance lines, call the number on this page to be connected with a local plumber in Castle Rock.
Gas in Castle Rock
Castle Rock is the Douglas County seat, a large and growing suburban town on I-25 named for the butte north of downtown. The Town lists Black Hills Energy as the natural gas provider, and Castle Rock appears in Black Hills Energy's Colorado tariff territory. That means leak calls and meter questions go to Black Hills, not Xcel. The emergency number is on the gas bill. Much of the town, including neighborhoods like The Meadows, is newer construction with flexible tubing and gas fireplaces; homes near downtown are older.
The Town of Castle Rock handles building permits, but its plumbing and water heater permit rules were not confirmed. A plumber who works in town will know what applies.
What to do now
- Odor of gas: leave first, without switches or flames.
- Call outside: 911, then Black Hills Energy at the number on your bill.
- Save that number in your phone now if you have not already.
- Schedule the repair with a plumber once the utility has made it safe.
- Adding an appliance? Gather its specs and ask about line capacity and permits.
Symptom guide
| Symptom | Likely cause |
|---|---|
| Sulfur smell | Leak: leave and call |
| Fireplace will not stay lit | Thermocouple, pilot or supply issue |
| Weak flame after adding an appliance | Undersized line |
| Hiss at a connector | Loose fitting or worn connector |
| Soot on a vent | Poor combustion |
What affects price
- Run length and access through finished basements
- Upsizing a line sized for original appliances
- Outdoor lines to patios, fire pits or grills
- Bonding work on flexible tubing
- Permit and inspection, where required
Outdoor gas features are popular here, and buried lines need pipe rated for underground use, a shutoff and a pressure test, with utility locates requested before digging. Plan those projects before the ground freezes. If you are adding a tankless heater or outdoor kitchen to a newer home, expect the plumber to check whether the builder's line can carry the extra load.
Keep carbon monoxide alarms working on every level, and test them twice a year. Ask for the permit number and test record after any job.
Gas Line Services questions in Castle Rock
How do I know which gas utility serves my address?
Can a gas line be run outside for a grill, fire pit or patio heater?
What is the yellow corrugated tubing on my gas lines, and why does bonding matter?
Can gas piping be extended to a standby generator?
More plumbing services in Castle Rock
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