Home › California › Altadena
Gas Line Repair in Altadena, CA
78% of households in Altadena take mains gas. Two things follow: there is a buried line on the property, and somebody other than you is responsible for part of it.
Read this first
A buried service line and a meter sit on most properties in Altadena, where 78% of homes are on mains gas. Federal rules end the utility's service line at the meter outlet, so everything downstream of the meter is the owner's to maintain and repair.
Source: US Census Bureau, American Community Survey table B25040; the service line boundary is 49 CFR § 192.3.
If you smell gas right now
Leave the building on foot. Do not use a phone or a light switch inside. Call 911 and your gas utility from somewhere else, and do not call us — we are a referral service, not an emergency line. The full list, in order.
How Altadena is supplied
49 CFR § 192.3 fixes the end of the service line at the meter outlet. It is a precise answer to a narrow question, and it is not the same as who is responsible for repairs, which varies by utility and by state.
Establishing which side of the meter a fault is on is the first thing any contractor should do, because it decides whether they are the right person to call.
| Households in Altadena | Share |
|---|---|
| Utility (mains) gas | 78% |
| Bottled or tank propane | under 1% |
| Electricity | 19% |
| Fuel oil and kerosene | under 1% |
| Wood and everything else | 3% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 12,724 occupied housing units. The table counts heating fuel rather than pipework. A house on mains gas almost certainly has a service line; the Census does not say so directly and neither do we. Service line definition: 49 CFR § 192.3, via PHMSA interpretation PI-12-0003.
Across California as a whole, 65% of households are on mains gas and 2% on tank propane. Altadena sits 12 points above the state on mains and 1 point below it on propane. The state number would tell you something true about the state and very little about here, which is why it is not the number above.
Before anyone digs on the property
Before any digging — a fence post as much as a foundation — call 8-1-1. It is a nationwide toll-free number, it costs nothing, and PHMSA puts the chance of avoiding an incident afterwards at 99 percent.
Source: PHMSA, 811 Day.
What to ask whoever quotes it
Ask what is being left behind: where the new pipe runs, at what depth, and whether you will get a photograph of the trench before it is filled. That record will not exist anywhere else and you will want it eventually.
Other California towns we route in
- Wofford Heights 28% mains gas · 31% tank propane
- San Gabriel 74% mains gas · 1% tank propane
- Millbrae 67% mains gas · 1% tank propane
- Union City 68% mains gas · 2% tank propane
- Concord 64% mains gas · 2% tank propane
Checking a plumber in California
California licenses are issued by the Contractors State License Board, which publishes a public search you can use before work begins. California licenses the C-36 plumbing contractor; there is no state journeyman license.
Gas work is separately permitted and separately licensed in most jurisdictions, so ask specifically about gas rather than plumbing in general.
For repair work, not for a suspected leak.If you can smell gas, leave and call 911 or your utility from outside; this is the wrong number for that. For everything else — a line, a meter, an appliance connection — we will route you to a contractor covering your area, free of charge to you. We serve Altadena for plumbing that has nothing to do with gas.
Call (888) 752-8038