Who Does Gas Fitting in Both NH and MA?

Why do NH and MA license gas work separately?

Because gas licensing is state law, and the two states wrote different laws. Massachusetts runs a dedicated Board of State Examiners of Plumbers and Gas Fitters with its own license classes, continuing education, and permit process. New Hampshire licenses gas fitters through its own state mechanism with its own credential numbers. A license in one state gives you exactly nothing in the other. That is not paperwork trivia: it decides who can legally pull the permit, whose work the inspector will pass, and whose insurance actually covers the job if something goes wrong on a fuel line.

The practical result is a border problem. Most plumbers build their book on one side and stop at the line. The homeowner in Haverhill and the property manager with buildings in both Salem NH and Methuen MA end up juggling two vendors for the same kind of work, or worse, letting an unlicensed crew touch a gas line because they were already on site.

Which jobs need a licensed gas fitter?

Anything that connects to fuel gas. The obvious ones are the appliance swaps and the new runs. The less obvious ones are where we get the emergency calls.

• New gas lines for ranges, cooktops, and dryers, including the range conversions in older housing stock.
• Standby generator connections, sized and piped for the load the generator actually draws, not the load the installer hoped.
• Pool heaters, garage heaters, and outdoor fire features with buried or exterior runs.
• Boiler, furnace, and tankless water heater gas supplies, where an undersized line quietly starves the equipment.
• Commercial kitchen and restaurant piping, with the regulators, drip legs, and shutoffs the inspector will look for.
• Industrial and food-plant process gas, the kind of black iron manifold work we photograph and sign.

The pattern across all of them: gas work fails quietly. A wrong-sized line does not leak, it just starves the appliance and shortens its life. A missing drip leg passes casual inspection until it does not. This is why the gas fitting page leads with license numbers instead of adjectives.

What does dual-state licensure mean for property managers?

One vendor, one standard, both sides of the line. If you manage doors across the NH and MA border, Haverhill, Methuen, Salem, Plaistow, Derry, you know the routine: the no-heat call comes in January, and the question is whether your vendor can legally work at that address. With tri-state licensure the answer is yes at every property on your list, with the same crew, the same invoice format, and the same master plumber accountable for all of it. That is the difference between a vendor and a coverage plan. We serve New Hampshire and Massachusetts from one shop, plus York County through the Maine service area, and commercial and mechanical scopes run through our commercial page.

How do you verify a gas fitter's license?

Look it up yourself, every time, for any contractor. Massachusetts licenses are searchable through the state's license verification portal, and New Hampshire credentials can be checked with the state licensing office. A legitimate contractor prints the numbers and does not flinch when you check them. Ours are on the estimate, the website footer, and the side of the van. If a contractor gets vague about which state their license covers, that vagueness is the answer. When you are ready for a number on your own gas project, start the estimate and the license numbers arrive printed on it.