Home › Massachusetts › Watertown
Gas Line Repair in Watertown, MA
69% of households in Watertown 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
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 Watertown, where 69% 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 Watertown is supplied
Under 49 CFR § 192.3, a service line ends at "the outlet of the customer meter or at the connection to a customer’s piping, whichever is further downstream". Upstream of the meter is the operator’s regulated line. Downstream is customer piping, under local code.
That is where the regulated line stops. Who pays is a separate question set by tariff and state regulation, and it is worth asking your utility rather than assuming.
| Households in Watertown | Share |
|---|---|
| Utility (mains) gas | 69% |
| Bottled or tank propane | 4% |
| Electricity | 12% |
| Fuel oil and kerosene | 12% |
| Wood and everything else | 2% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 16,220 occupied housing units. B25040 records what heats the house, which is the best available guide to whether a property has mains gas or a tank — it does not count service lines directly. 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. Watertown sits 13 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
One free call before any excavation. PHMSA is blunt about why: excavation damage is the leading cause of pipeline incidents, and 8-1-1 raises the odds of avoiding one to 99 in 100. It applies to a fence post as much as a foundation.
Source: PHMSA, 811 Day.
What to ask whoever quotes it
Ask which side of the meter the work is on before anything else. On the utility side it may not be a contractor job at all, and a quote that has not established that has not established whose problem it is.
Other Massachusetts towns we route in
- Melrose 62% mains gas · 2% tank propane
- Brighton 55% mains gas · 5% tank propane
- Sagamore Beach 52% mains gas · 10% tank propane
- Lexington 49% mains gas · 5% tank propane
- Auburndale 69% mains gas · 1% 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. Any Watertown job, gas or otherwise, is routed from here.
Call (888) 752-8038