Gas Line Services in Thornton, CO

If you smell gas in a Thornton home, leave, then call 911 and your gas utility from outside: Xcel Energy at 1-800-895-2999 for most of the city, or the utility shown on your bill. New gas lines and repairs after the meter need a plumber and a city permit; call the number on this page to be connected with a local plumber in Thornton.

What the call looks like

The number on this page connects you with an independent plumber who works on gas piping in Thornton. They will ask what you need, where the meter is and roughly where in the city the home is, since housing in the south end is much older than near E-470 and State Highway 7. If there is any odor, leave and call 911 and your utility first. For planned work, the plumber sizes the line and handles the city permit.

Cost factors

Distance from the meter and the route through the house
Whether the trunk line needs upsizing
Venting changes on a water heater or furnace swap
Outdoor lines to patios or grills
City permit and inspection

Call now to be connected with a local plumber in Thornton.

(303) 529-9880

Thornton conditions

Thornton is a large northern suburb along I-25. Census survey figures put the median build year at 1997, with about 22% of homes built before 1980. The older 1950s to 1970s housing is mostly in the south, while newer subdivisions spread toward E-470 and SH 7. Older homes may have iron pipe that has been extended over time; newer homes usually have flexible tubing.

The city says gas and electric service come from Xcel Energy or United Power depending on location, and points residents to their utility bill or the city's service area map. Xcel's gas emergency line is 1-800-895-2999; if your bill shows a different provider, use its number.

The City of Thornton Building Inspection Division requires permits for gas lines, water heater installation or replacement and plumbing modifications. Replacing fixtures does not need one. The city adopted the 2024 International Plumbing Code for applications submitted.

Checklist

Check which utility is on your bill
Find the meter and main shutoff
Clear access to the appliance
Have appliance specs for anything new
Mark buried sprinklers if digging is involved

Late summer is the best time for planned gas work before heating season, and outdoor lines should go in before the ground freezes.

If you are not sure how much gas your current line can carry, the plumber will add up the ratings of every gas appliance in the house and compare that with the pipe size and length from the meter. That check decides whether a new range or tankless heater can tie in or needs its own line. It is quick, and it is part of what the city inspector looks for.

Gas Line Services questions in Thornton

Does gas piping work here need a permit?

Yes. Thornton's Building Inspection Division requires permits for gas lines, water heater installation or replacement and plumbing modifications. The plumber usually pulls it.

How do I know which gas utility serves my address?

The city says service comes from Xcel Energy or United Power depending on location. Your bill shows which, and Xcel's emergency line is 1-800-895-2999.

Can a plumber add a gas line for a new range, dryer or fireplace?

Yes, with a city permit. The plumber sizes the branch, adds a shutoff and pressure tests the line before the appliance is connected.

What do plumbers tend to find in the gas piping of older homes?

In south Thornton's 1950s to 1970s homes, plumbers often find iron pipe extended through several remodels, unused branches and old connectors.