St. George Home Services

Plumbing · Repairs and leaks

Gas line install and repair

Gas line installed or repaired, sized by calculation, pressure tested and permitted. If you smell gas, leave the house and call the gas utility first.

One flat fee to find out what is wrong. You are told it on the phone before anyone is dispatched, and it comes off the job if you hire us. Read our Plain Terms

A new gas line run in black iron with code-compliant fittings and a shutoff at the appliance
A permitted gas line to an outdoor fire pit. Rolling Hills Estates, California.

What the work is

Gas work is sized, not estimated. The line has to carry the demand of everything on it at once, at the length it actually runs, and that is a calculation. Undersized gas is why a tankless heater cannot hold temperature and why a range never quite performs.

Every line we install or alter is pressure tested and inspected. A leak search on an existing line is a bubble test at the fittings and a pressure test on the section, and we show you what we find.

If you smell gas right now, leave the house and call the gas utility from outside. Do not call us first.

What is included

  • Load calculation and sizing for everything on the line
  • New line in the correct material for its location, with a shutoff at the appliance
  • Pressure test and the permit inspection
  • Bubble testing existing fittings on a leak search
  • A written record of the test

What is not

  • Appliance repair or connection beyond the shutoff and the connector
  • Work on the utility's side of the meter
  • Anything that should be done by the gas utility in an active leak
  • Locating a buried line on someone else's property

The most common thing we find

A tankless water heater on a gas line that was sized for a tank. It works until two things run, and then it does not. If a tankless install is in your future, the gas calculation is part of that job and not an extra.

What to ask anyone quoting this, us included

  • What is the calculated load, and what size line does it need?
  • Was it pressure tested, and can I see the record?
  • Is the permit in the price?

What we can show you in writing

Every line traces to a document we read in full. The number after a sentence points to the research below.

  • Corrugated stainless gas tubing has to be bonded to the electrical service grounding electrode system, with a conductor no smaller than 6 AWG copper, clamped to rigid metal gas pipe upstream of the tubing, and run as short and straight as practicable.1
  • Arc-resistant jacketed tubing does not exempt you. The manufacturer's instructions still govern and bonding is still generally required. Houses piped before the requirement, or by someone who skipped it, are still out there.1
  • Gas piping needs a permit in Utah, and the test is air or inert gas — never fuel gas and never oxygen — at a minimum of 3 psig or 1.5 times working pressure, whichever is greater, held at least 10 minutes with no perceptible drop. Your jurisdiction may require more; ask before the trench is open.1

Where this comes from

Every line above traces to a document we read in full. The number after a sentence points to the research below; hover it for the section. If you find a line wrong, tell us and we will fix it and say so.

  1. Plumbing research, August 2026 Compiled from manufacturer warranty documents and installation manuals (A.O. Smith, Noritz, Rinnai, Rheem, Navien, Bradford White), the Battelle / Water Quality Research Foundation study, the Utah Code and DOPL rules. 3 sections cited. Hover a number above for the section.

Read before you decide

The rest of repairs and leaks

The quote is the number. There is no second number.

Call (801) 680-6859

7 a.m. to 5 p.m., weekdays. Emergency calls answered any hour, every day.