Panel and Service Upgrades in Exeter, NH for Historic and Modern Homes

A Panel Upgrade in Exeter, NH Depends on Which of Four Kinds of Home You Have

The Census Bureau's American Community Survey for 2020 to 2024 describes a town that is unusually mixed. About 26 percent of Exeter's housing was built before 1950, and 23 percent before 1940. A little over a quarter went up in the 1980s and 1990s, and about 23 percent has been built since 2000. About 12 percent of housing units are manufactured homes, and another quarter are in apartment buildings of five or more units.

That mix decides what a panel upgrade means. In the oldest houses it is the replacement of a fuse box that was installed when the house had a refrigerator and a radio. In a subdivision built in the 1980s or 1990s it is a decision about whether a sound panel can take a heat pump and a charger. In a manufactured home it is a question about the feeder and the disconnect outside the house, and in a condo it is a question of what you own and what the association does.

So the first visit is about the house, not the panel. We look at what the building is, what it carries now and what you are planning, then say which upgrade fits. A. Pro Electric does panel and service upgrades across southern New Hampshire, and in Exeter the first answer is rarely the same twice.

Historic Exeter Houses Near the Town Square and Water Street

Exeter's core is one of the older settlements in the state, settled in 1638, and the streets around the town square and Water Street hold houses and commercial blocks that were wired, if at all, long after they were built. Roughly one house in four in the town dates from before 1950, and many of them carry the signs. A fuse panel of 60 amps or less, a few two-prong outlets and extension cords doing the work of circuits that were never added.

Upgrading the panel in a house like that is as much about routing as about capacity. The new panel has to go where the old one was or somewhere equally sound, the cables have to be run through plaster and framing that was never built for them, and the service mast has to leave the house in a way that does not scar it. In a historic district, a new mast or meter position on the front of a building may need the town's approval before work starts, so we ask before we plan.

Where the wiring behind the walls is original, the panel upgrade is the first step and not the last. What genuinely makes knob and tube wiring dangerous explains the conditions that matter, and rewiring and added circuits is the work that follows when a house needs it. A new 200 amp panel on old wiring is safe, and it is also a good reason to plan the rest.

Exeter Subdivisions From the 1980s to the 2000s Reach Their First Panel Decision

The median home in Exeter dates from 1979, and nearly half the housing has gone up since 1980. Those houses were built to current standards for their time and have, in many cases, the original 100 or 150 amp panel. Nothing is wrong with them. What has changed is what the household wants to plug in.

The decision is arithmetic. A heat pump, an electric vehicle charger, an induction range and a finished basement each add load, and a service that was ample for the house as built has a ceiling. A load calculation, done before any equipment is bought, shows how much is left. The service capacity calculator gives a first answer and the walk-through confirms it.

If there is room, the new loads go in on new circuits and the panel stays. If not, a 200 amp service upgrade typically runs $3,000 to $3,500 and covers the loads that are coming. How to choose the right size of electrical service sets out the thinking, and a service upgrade done once, ahead of the loads, costs less than one done after each of them has been squeezed on.

Manufactured Homes in Exeter Have Their Own Panel and Service Rules

About 12 percent of Exeter's housing units are manufactured homes, and a panel upgrade for one is a different job from one for a house. The home has a distribution panel inside, but the service equipment, the main disconnect and the meter, is usually located outside the home on a pedestal or a pole, and the two are joined by a feeder. The National Electrical Code deals with them separately, in Article 550.

That arrangement decides where the capacity limit sits. The panel inside may be fine and the feeder or the disconnect outside may be the limit, or the other way around. A home whose owner is adding a heat pump may need a larger feeder and a new disconnect as well as a new panel, and the feeder has to be the type and size the code asks for, not whichever cable was to hand.

Older manufactured homes add a further question, which is what the branch circuits are made of. Some homes of the 1970s were wired with aluminum, which is not a reason to panic and is a reason to look at every connection. We inspect the feeder, the disconnect, the panel and a sample of the branch connections, and tell you what we find before we quote. The panel brand check is a useful first look at the equipment in the home.

Condo and Apartment Panels in Exeter, and What the Owner Is Allowed to Change

About a quarter of Exeter's housing units are in buildings of five or more, and about 14 percent are in buildings of two to four. If you own a condominium unit, you usually own the panel inside it and the association owns the meter bank, the feeder and the common wiring. That boundary decides who can approve a change and who pays.

A panel replacement inside a unit is normally the owner's decision and usually needs notice to the association. A larger feeder to the unit, or a change at the meter bank, is the association's. We read the building's documents with you where they exist, and where they do not we ask the manager. The ordinary reason for a unit panel upgrade is a heat pump, an induction range or a charger, and the first question is whether the feeder to the unit can carry it.

Condo work is also about neighbors. A shutdown that affects the whole building has to be scheduled with the manager, a noisy morning has to be agreed and the work in a shared basement has to leave it as it was found. We plan for that and keep the power off for as short a time as the job allows. A commercial electrician for property managers in Exeter handles the building side of the same question.

Heat Pumps, Chargers and Oil Tanks Driving Exeter Panel Upgrades

The Census figures show how Exeter heats. About 35 percent of occupied homes use utility gas, about 25 percent fuel oil, about 19 percent propane and about 17 percent electricity. More than four in ten households are therefore buying delivered fuel, and many of them are weighing a heat pump in place of the tank.

A heat pump is the load that most often decides a panel upgrade in a town like this. A cold-climate system for a whole house is the largest single load a New Hampshire home commonly adds, and a household that has one will often add a charger within a year or two. The two together are what turn a comfortable 100 amp service into a full one, and the right time to find out is before the equipment is ordered.

The EV charger installation work follows the same logic, because Exeter has the Downeaster station and Route 101 with Interstate 95 close, which puts commuters on the road and cars in the driveway. A good plan covers the heat pump, the charger and a margin, in one service upgrade, and leaves the panel with spare spaces for what comes next.

Coordinating an Exeter Service Upgrade With the Electric Supplier

A service upgrade changes what the house is fed from, so the supplier is part of it. The supplier disconnects the service so the old equipment can be removed and reconnects it once the new equipment is installed and inspected. That date is the supplier's to set, and it is arranged ahead of time.

In Exeter this needs a little care. Unitil's own list of service areas shows it supplying natural gas in Exeter and part of the town's electricity, and the part is the point. Who serves a particular street is confirmed for the address before a shutdown is booked, so that the right supplier is called and the day does not slip.

The work itself is quick once it starts. A panel swap on an existing service is typically most of a day, and a service upgrade is a day or a little more. We tell you the time the power will be off, arrange for the refrigerator and the heating to be considered and make the day as short as we can, and the permit and the inspection are handled alongside it.

Permits, Inspection and the Paperwork for an Exeter Panel Upgrade

A panel or service upgrade is permitted work. The permit is pulled from the town under the master electrician's license, the work is inspected, and the sign-off is what makes the new equipment a legitimate part of the house. A panel changed without one can become a problem when the house is sold or when an insurer asks.

The inspection is against the code the state has adopted. New Hampshire's State Building Code was updated with effect from July 1, 2024, and a new panel is built to the National Electrical Code as the state has adopted it. In practice that means arc fault and ground fault protection in more places than an older panel provided, and labeling that is complete.

You keep the permit, the sign-off and a panel directory that says what each breaker feeds. A buyer's inspector will ask for them and an insurer may too. The guide to deciding whether a panel needs replacing is worth reading beforehand, and it is the paperwork that turns a panel upgrade from an expense into a selling point.

For a panel upgrade in Exeter, NH, the right answer depends on whether the house is historic, a subdivision, a manufactured home or a condo, and A. Pro Electric, a licensed master electrician, works out which before quoting.