Walk around the side of an older Barstow house and find the gas meter. Look at the pipe coming out of the ground beside it and the fittings that carry gas from the meter into the wall. On a lot of houses in the railroad and Route 66 neighborhoods, that pipe is old galvanized steel, and the elbows and unions are wearing a coat of rust. Some of that is cosmetic. Some of it is the start of a leak. Telling the difference starts with one rule.
If you smell gas, the order of things
Gas has an odor added to it so a leak announces itself. If you smell it inside, get everyone out of the house first. Do not flip light switches on or off, do not unplug anything, and do not start a car in an attached garage, because each of those can make a spark. Once you are outside and away from the building, call the gas utility. They can shut off the supply and check the meter side of the system.
Call us after that call. We handle the piping on your side of the meter, the riser, the lines through the walls and the connectors behind each appliance. What we will not do, and what nobody should do, is ask a homeowner to chase a live gas leak with a wrench. A gas line is the one part of a house where guessing is never the right first move. Smell first, leave, call the utility from outside, and then let a plumber find the leak with the gas under control. Our emergency line answers around the clock Monday through Saturday, Barstow included.
Why the riser at the meter rusts first
Barstow’s older blocks were plumbed when galvanized steel was the standard for both water and gas, and much of that original pipe is still in service. Inside the walls it is mostly protected. The riser at the meter is not. It stands outside in desert sun, takes cold high-desert nights, and gets splashed by sprinklers and rain, and where it enters the ground the steel sits against soil that holds moisture.
The rust shows up first where the pipe is weakest, at the threads. Every elbow and union is a place where the wall of the pipe was cut thinner to make a thread, and that thinner steel corrodes through before the straight runs do. Light surface rust on a sound riser is mostly a paint problem. Rust that flakes off in layers, swells the fittings, or has eaten a pit into the steel is a different conversation. From the outside the two can look surprisingly alike, which is exactly why we do not judge a riser by its color. We judge it with a gauge.
Houses on these blocks have often been through several owners and a few rounds of work, so the riser may wear a mix of old and newer fittings. A shiny union threaded onto a rotten nipple is a common sight, and it tells you someone fixed the leak they could see and left the pipe they could not.
What a pressure test actually proves
A pressure test answers one question with no room for opinion: does this gas system hold pressure or not? We close the supply, thread a test fitting into the system, put a gauge on it, and bring the piping up to pressure. Then we wait and watch the needle. If it holds steady, the piping is tight. If it drops, gas is escaping somewhere downstream of the gauge, and no amount of sniffing or guessing changes that result.
A drop tells us there is a leak but not where it is, so the next step is narrowing it down, section by section and fitting by fitting, with a leak detection solution on the joints until one of them bubbles. Once the bad fitting or pipe is replaced, the test runs again. That second reading is the part that matters most to you, because it proves the repair rather than assuming it. It is also how gas work gets signed off. The details of our gas line repair work in Barstow start and end with that gauge.
One bad union, or a riser that is done
Once the test finds the leak, there is a real decision to make, and we try hard to make it honestly. Sometimes one union has failed on an otherwise sound riser, and replacing that fitting and retesting is the whole job. Sometimes the leak is just the first spot to give on a riser that is rusted through at every thread, and patching one joint only schedules the next call.
We show you what we found and explain which situation you are in. Customers tend to remember that part. Cao M wrote that Ruben “is very honest and told us we only need to replace the RPV but not the ball valve as other plumber suggested.” That was a water call rather than a gas one, but it is the same habit at work: replace what failed, and tell you where the rest of the riser stands. A gas riser deserves that kind of straight answer more than almost anything else in the house.
Connectors behind the appliances
Pressure tests catch more than risers. A common find is a tired flexible connector, the short yellow or stainless line that runs from the gas shutoff to a water heater, range or dryer. Those connectors get bent, pushed against walls and kinked every time an appliance gets pulled out for cleaning, and the shutoff valve behind them can stiffen or weep at the stem.
We replace a suspect connector and its shutoff rather than tighten them and hope. The parts are modest and the access is easy while we are already there with a gauge, so it rarely makes sense to leave an old one in place. The same goes for gas lines feeding a new appliance: when a heavier draw goes in, like a tankless heater, the line from the meter sometimes needs to be larger, which is covered on our Barstow tankless page. For the broader picture of what we repair and replace on gas systems, see the main gas line repair page.
Questions about rusty gas risers
Can I just paint or wrap a rusty riser?
Paint helps a sound riser with light surface rust stay that way. It does nothing for steel that is already pitted or flaking at the threads, and it can hide how bad things have gotten. Have it pressure tested first, and paint afterward if the test says the pipe is tight.
Does a pressure test mean shutting off my gas?
Yes, for the length of the test and any repair. Appliances get turned off beforehand, and once the system passes and the gas comes back, pilots get relit and each appliance gets checked so nothing is left cold or misbehaving when we pack up.
Can you test a restaurant or motel without closing it?
We schedule gas work on the commercial strip around operating hours, because a kitchen or a motel cannot simply go dark in the middle of service. Tell us when the slow window is and we will plan the shutoff, the test and the repair inside it.
Find out what the riser is hiding
If the pipe at your meter looks rough, or a faint gas odor keeps coming and going outside, have it tested before it turns into an emergency. Call (877) 233-1033 or describe what you are seeing. We cover all of Barstow, and once the gauge has told us what is wrong, you get a firm price for the fix before anyone picks up a pipe wrench.