How much does it cost to run a gas line in Houston?

As of September 2026, a short interior gas line to a range or dryer near existing piping commonly runs about $400 to $1,200 in the Houston area, while longer runs to a standby generator, pool heater, or outdoor kitchen commonly run about $1,200 to $4,000 or more depending on distance, pipe size, trenching, and whether the meter must be upgraded. Hugo Plumbing quotes gas work in writing after a free on-site look, with the permit and pressure test included.

Do you need a permit to run a gas line in Houston?

Yes. Gas piping is plumbing work in Texas and must be done by a licensed plumber; inside the City of Houston and most surrounding cities it also requires a permit, a pressure test, and an inspection. Hugo Plumbing pulls the permit and schedules the inspection as part of the job.

How much does a gas line for a generator cost?

Standby generators draw a lot of gas, so the line is usually 3/4-inch or 1-inch, often needs the meter upgraded by the utility, and frequently runs 30 to 100 feet across the yard. In the Houston area that commonly lands in the $1,500 to $4,000 range as of September 2026, not counting the generator or the electrical work, with the meter upgrade handled by the gas utility.

What is the difference between black iron and CSST gas pipe?

Black iron is rigid threaded steel pipe, durable and inexpensive per foot but labor-intensive to cut and thread. CSST is flexible corrugated stainless tubing that runs quickly through attics and walls and must be properly bonded to the electrical system. Most Houston homes use black iron near the meter and appliances with CSST for long interior runs; either is code-compliant when installed correctly.

Can I run my own gas line?

In Texas, gas piping is licensed plumbing work, and inside city limits it requires a permit and inspection. Beyond the legal issue, a leak on a DIY line is the kind of mistake you find out about the hard way. Have a licensed plumber size it, install it, pressure-test it, and get it inspected.

Gas Line Installation Cost in Houston: Ranges, Generators, Outdoor Kitchens, and What’s in the Price

Adding a gas range, a dryer, a standby generator, a pool heater, or an outdoor kitchen all starts with the same question: what does it cost to get gas there? The answer ranges from a few hundred dollars for a short run in the kitchen to several thousand for a generator across the yard, and almost all of the difference comes down to four things: distance, pipe size, what’s in the way, and whether the meter can keep up. Here’s the Houston market as of September 2026.

Typical Houston-Area Ranges (September 2026)

These are market-wide ranges for the gas piping work, including permit and pressure test. Appliances, electrical, and meter upgrades by the utility are separate.

Project	Typical range	What’s usually in it
Gas range or cooktop, near existing line	roughly $400–$1,200	Short branch, shutoff, sediment trap, flex connector, test
Gas dryer, near existing line	roughly $400–$1,000	Same as above
Water heater or tankless line upsize	roughly $500–$1,500	Larger line from the meter or trunk, often 3/4“
Pool or spa heater	roughly $1,200–$3,000	Longer exterior run, trenching, larger pipe
Outdoor kitchen, grill, or fire pit	roughly $800–$2,500	Exterior run, stub-out with shutoff, trenching
Standby generator	roughly $1,500–$4,000+	3/4“ or 1“ line, long run, trenching, meter capacity check
Whole-home gas repipe	priced on site	Replacing corroded black iron throughout; Hugo Plumbing’s $300 repipe coupon applies

Hugo Plumbing quotes every gas job in writing after a free on-site look. The permit, pressure test, and inspection are in the price.

What Drives the Cost

Distance. Pipe and labor scale with feet. A range six feet from an existing tee is a quick job; a generator 80 feet from the meter is a long one.

Pipe size. Appliances are rated in BTUs, and the pipe has to deliver that at the distance involved. A range might need 1/2“; a tankless water heater or generator needs 3/4“ or 1“, and larger pipe costs more per foot and takes longer to run. Undersized pipe is the most common mistake on cheap installs — the appliance starves and sputters.

Meter capacity. Every meter has a maximum flow. Add a generator and a tankless to a house that already has a furnace, range, and dryer, and the meter may need to be upgraded. That’s done by the gas utility (CenterPoint Energy for most of the Houston area) at their schedule; the plumber’s job is to size the total load and tell you up front.

Routing. Interior runs through an attic are faster than trenching across a yard. Exterior lines are buried at code depth, and underground runs mean a Texas 811 utility locate first. Concrete or a driveway in the path adds boring or cutting.

Material. Black iron is inexpensive per foot but slow to thread. CSST runs quickly through attics but costs more per foot and must be bonded. Most jobs use both.

Trenching and restoration. Digging, backfill, and putting the lawn or bed back.

Permit and pressure test. Non-negotiable in Houston and most suburbs. If a bid doesn’t include them, it’s not a complete bid.

Generators: The Job With the Most Surprises

Standby generators became a standard Houston upgrade after 2021, and they’re the gas job most likely to blow a budget. A 22kW unit can draw 250,000-plus BTU at full load — more than everything else in the house combined — so the line is large, the run is usually long, and the meter almost always needs the utility to upgrade it. Get the plumber, the electrician, and the generator dealer talking before anyone pulls a permit, and budget the gas line separately from the unit and the electrical. Our gas line page covers what we handle on the gas side.

What a Proper Gas Install Includes

Load calculation for every appliance on the system, not just the new one
Correctly sized pipe from the meter or trunk to the appliance
Approved shutoff valve at the appliance and a sediment trap (drip leg)
CSST bonded to the electrical grounding system
Buried lines at code depth, properly protected
A pressure test of the system, held and witnessed
Permit and city inspection
Appliance connection, startup, and a leak check at every joint

If the price seems too good, one of these is missing. The pressure test and inspection are what turn “it works” into “it’s safe.”

Leaks and Reconnection

Gas leak repair is a different job: the utility shuts off and locks the meter, a licensed plumber finds and repairs the leak, pressure-tests the whole system, and the city inspects before the utility reconnects. If that’s your situation, what to do if you smell gas covers the first steps, and we handle the rest.

Hugo Plumbing installs, repairs, and tests gas lines across Houston with the permit included, at least a one-year warranty on the work, and several financing options for larger projects. Call or text (713) 409-7176 for a free look and a written price. If your gas won’t go, call Hugo.