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Gas Line Repair in Monrovia, CA
Gas arrives by pipe for 70% of homes in Monrovia. The part of it you can see is the meter; the part that goes wrong most expensively is the part you cannot.
Read this first
Responsibility changes hands at the meter outlet. The line under the ground between the street and the meter is the utility's up to that point, and the yard line and house piping after it are the property owner's. 70% of homes in Monrovia heat with utility gas.
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 Monrovia is supplied
Two questions hide behind one. Where does the regulated line end — the federal answer is the meter outlet. And who pays for a repair on either side of that — which is tariff and state regulation, and varies.
The second one is the one that costs money, and it is answered by your utility rather than by any rule you can look up.
| Households in Monrovia | Share |
|---|---|
| Utility (mains) gas | 70% |
| Bottled or tank propane | 2% |
| Electricity | 25% |
| 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: 15,312 occupied housing units. Read it as fuel rather than as plumbing. The share on utility gas is how many houses burn it, which is the nearest thing published to how many have a service line. 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. Monrovia sits 5 points above the state on mains and about level with it on propane. Averages are where this kind of difference disappears. The figures on this page are the town’s own for that reason.
Before anyone digs on the property
Digging is the risk, not age or material. PHMSA names excavation damage as the leading cause of pipeline incidents and puts a caller’s chance of avoiding one at 99 percent. 8-1-1 is nationwide, toll-free, and costs nothing.
Source: PHMSA, 811 Day.
What to ask whoever quotes it
If any part of the job is in the ground, ask when they are calling 8-1-1 and whether a private line may be in the way. Both answers should come before the excavation, not during it.
Other California towns we route in
- Bellflower 59% mains gas · 2% tank propane
- Chino 77% mains gas · 2% tank propane
- Burbank 73% mains gas · 2% tank propane
- Stevenson Ranch 79% mains gas · 3% tank propane
- Pico Rivera 72% 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. Non-emergency work in Monrovia goes through this number as well.
Call (888) 752-8038