If a Montclair home smells of gas, leave first and call 911 and SoCalGas at 1-800-427-2200 from a safe place. For repairs and updates to the gas piping after the meter, call the number on this page to be connected with a local plumber in Montclair.

Warning signs to watch for
- A gas smell. Walk out, then call. Do not try to find the leak yourself.
- A soft hiss from a valve, union or appliance hookup
- Range or oven flames that are yellow, sooty or uneven
- Rust on exposed gas pipe, especially where it enters the ground or the wall
- A valve handle that will not move
- Pilot lights that go out with no obvious cause
Montclair's housing and gas lines
Montclair was built out from citrus orchards after World War II, and its housing is mostly older: the median home was built in 1969. Gas piping of that age has usually been through several rounds of changes as appliances were replaced, moved or added. Typical findings include black iron pipe with many tees, capped lines to appliances that no longer exist, valves that have seized and older flexible connectors that are past their service life. The City of Montclair itself recommends having older homes checked by a plumber for problems such as corroded pipes.
The City of Montclair lists SoCalGas as the gas utility. Water comes from Monte Vista Water District and sewer from the city, but neither handles gas. For permits, the City of Montclair Building Department is part of Community Development; its walk-in counter keeps early morning and late afternoon hours, and inspections are requested by phone. Gas piping changes generally need a permit and inspection.
What affects the price
- How much of the old piping needs work beyond the immediate repair
- Replacing seized valves and old connectors along the way
- Run length and access through attics, crawl spaces or walls
- Upsizing an old line for a modern range or tankless heater
- Permit, pressure test and inspection
What happens when you call
The number on this page connects you with an independent plumber who handles gas work in Montclair. Explain what you have noticed, which appliance is involved and roughly how old the house is. In an older home, ask whether the plumber recommends a pressure test of the whole system, since that is the clearest way to know whether old joints are holding.
Gas Line Services questions in Montclair
What do plumbers tend to find in the gas piping of older homes?
Should the old flexible connector behind my stove or dryer be replaced?
Does gas piping work here need a permit?
Do homes with gas appliances need carbon monoxide alarms?
More plumbing services in Montclair
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