Home › New Hampshire › Portsmouth
Gas Line Repair in Portsmouth, NH
Utility gas heats 49% of homes in Portsmouth. That puts a buried service line and a meter on most properties here, and puts the boundary between the two sides of the system exactly at the meter.
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 Portsmouth, where 49% 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 Portsmouth is supplied
A buried run from the street to a meter, and piping onward through the property. Federal rules end the service line at the meter outlet; what comes after is customer piping.
The piping people forget they own is the buried run from the meter to a detached garage, a grill or a pool heater. That is theirs, and it may not be marked when somebody comes to locate lines.
| Households in Portsmouth | Share |
|---|---|
| Utility (mains) gas | 49% |
| Bottled or tank propane | 6% |
| Electricity | 18% |
| Fuel oil and kerosene | 23% |
| Wood and everything else | 4% |
Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 10,899 occupied housing units. This is the heating-fuel table. It does not enumerate service lines, and no table does at this geography; what it gives is the best available indication of which arrangement a property is on. Service line definition: 49 CFR § 192.3, via PHMSA interpretation PI-12-0003.
Across New Hampshire as a whole, 25% of households are on mains gas and 17% on tank propane. Portsmouth sits 23 points above the state on mains and 12 points 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
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 the work will be tested and what happens at the end of it. An inspection on gas work is normal rather than a complication, and a contractor who treats it as one is telling you something.
Other New Hampshire towns we route in
- Jaffrey 1% mains gas · 10% tank propane
- Weare 1% mains gas · 31% tank propane
- North Walpole 0% mains gas · 0% tank propane
- Barnstead 3% mains gas · 8% tank propane
- Danbury 3% mains gas · 31% tank propane
Checking a plumber in New Hampshire
The authority is the New Hampshire Office of Professional Licensure and Certification, Mechanical Safety and Licensing Board. New Hampshire licenses plumbers but publishes no online licensee search, so verification means contacting the office directly.
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. Gas is one part of what Portsmouth calls us about.
Call (888) 752-8038