No do-it-yourself steps
Gas line work in Aurora
If you smell gas, leave. Call the gas utility's emergency line or emergency services from outside. This page will not tell you how to find a leak, tighten a fitting, or size a pipe.
What a plumber or a gas fitter is being asked to do
Adding a line for a range, moving a meter set, or replacing a corroded section is permitted work in the cities that publish plumbing and gas rules. Englewood lists adding or altering heating or plumbing, and replacing a water heater, among jobs that need a permit. Aurora's inspection list includes gas-pipe inspections on permitted work. Centennial's one-stop schedule names a gas line among items that can be a short review, which is not permission to skip the permit. Castle Rock wants gas-load calculations when the appliance is a tankless water heater. None of those sentences is a field manual.
The quote should say who pulls the permit, who shuts the meter with the utility's knowledge, and which appliances are reconnected. It should not include a how-to for you. A water-heater replacement that also replaces a connector can brush this scope. Ask. The heater pages do not teach gas either.
What this site will not do
It will not describe soap tests, flame color, or pipe sizing. It will not tell you to open a union. After the utility says the building is safe to enter, a licensed person does the repair. If the smell is strong, do not stay to read the rest of this page.
Questions to settle first
I smell gas. What do I do?
Leave the building. Do not switch lights or hunt for the fitting. From outside, call the gas utility's emergency number or emergency services. This website is not that number, and it will not describe how to tighten or light anything.
Does a new gas line need a permit?
Plan on yes. Englewood lists alterations to plumbing and fuel-burning appliances as permit work. Aurora inspects gas pipe on permitted jobs. Centennial lists a gas line on its one-stop schedule, which is still a permit. Ask the building department for the address. Do not start from a blog.
Can the water-heater plumber add a gas line?
Only if the quote says so and they are allowed to pull that permit. A tank swap and a new gas run are different scopes. Castle Rock adds gas-load math for tankless heaters. Ask for that sheet when the appliance is tankless there.
Will you give sizing steps if I measure the pipe?
No. Sizing, threading, and testing stay with the person who will sign the permit. Measuring your own pipe does not make this page a manual. Ask them to write that limit into the quote before you compare it with another company.