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Gas Line Repair in Waltham, MA
54% of households in Waltham heat with utility gas, which means a buried service line runs from the street to a meter on most of these properties. Where that line ends is a federal definition, and it decides who repairs what.
Read this first
The utility's regulated line ends at the meter outlet and the piping beyond it belongs to the property owner. That boundary decides most gas line questions in Waltham, where 54% of households heat with utility gas and a buried service line runs from the street on most properties.
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 Waltham is supplied
The meter is doing two jobs: measuring gas, and marking where the federally regulated line stops. The second is the one that matters when something fails.
Buried customer piping past the meter — out to a garage, a grill, a generator — is the owner’s, and it is easy to forget it exists until somebody digs.
| Households in Waltham | Share |
|---|---|
| Utility (mains) gas | 54% |
| Bottled or tank propane | 3% |
| Electricity | 22% |
| Fuel oil and kerosene | 20% |
| Wood and everything else | 1% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 25,692 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 Massachusetts as a whole, 56% of households are on mains gas and 4% on tank propane. Waltham sits about level with the state on mains and 1 point below it on propane. That spread is what a state average hides, and it is why this page carries the town’s own figures rather than inheriting them.
Before anyone digs on the property
A locate before digging is free, and PHMSA is unambiguous about the value — excavation damage is the leading cause of pipeline incidents and calling 8-1-1 first avoids one 99 times in a hundred. The gap to ask about is private buried line, which a standard locate may not mark.
Source: PHMSA, 811 Day.
What to ask whoever quotes it
Ask how much gas work they actually do, not whether they can. Gas is separately licensed in most jurisdictions and plenty of capable plumbers do very little of it.
Other Massachusetts towns we route in
- Pembroke 51% mains gas · 4% tank propane
- Newton Highlands 66% mains gas · 2% tank propane
- Newton Upper Falls 66% mains gas · under 1% tank propane
- Malden 61% mains gas · 3% tank propane
- Winthrop 63% mains gas · 3% tank propane
Checking a plumber in Massachusetts
Massachusetts licenses are issued by the Massachusetts Board of State Examiners of Plumbers and Gas Fitters, which publishes a public search you can use before work begins.
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 Waltham for plumbing that has nothing to do with gas.
Call (888) 752-8038