Updated October 2026
Straight answer
Yes. We install home EV chargers across Waltham, along with the panel work some installs need. The first step is a load calculation, because a Level 2 charger is one of the largest loads a house can carry. If your panel has room, the job is a dedicated circuit and a charger. If it does not, load management can often avoid a service upgrade. Phones are answered 24/7.
How much charger will your panel allow?
A Level 2 charger usually needs a 40 or 60 amp circuit. In a house with a 100 amp service, a gas furnace and gas cooking, that may fit easily. Add central air, an electric dryer and a heat pump water heater, and the numbers get tight. The NEC load calculation counts all of it, and the inspector works from the same method, so we start there rather than with empty breaker spaces.
Charger size is also a choice, not a requirement. Most drivers who commute and charge overnight get a full battery from a smaller circuit. A 32 amp charger on a 40 amp circuit may fit a panel where a 48 amp unit would force an upgrade. We show you the charging speed each option gives and let you pick based on how you actually drive.
Utility programs and EV charging in Waltham
If your Waltham home is on Eversource, the utility's residential charging program is worth a look before you buy hardware, and the state utilities department keeps a web page that rounds up other charging help for residents. Terms change, and some programs care which charger you pick and whether it connects to the internet. Our part stays the same either way: confirm what the panel can spare, size the charger circuit to match, and plan the cable route from the panel to where you park.
Load management instead of a bigger service
When the calculation comes up short, there are options before a service upgrade. A load management device watches the main service and slows or pauses the charger when the house is drawing a lot of power. A smart panel does the same for several large loads at once. Either can let a modest service support an EV, and later a heat pump, without a new meter socket.
A service upgrade still makes sense in some homes, especially if you plan two EVs, electric heat and induction cooking. In that case, we plan the upgrade with Eversource, size the panel for the whole list, and wire the charger in the same project. The city wiring inspector reviews the work, and we file the permit on work that needs one.
Garage, driveway or shared parking?
Where the car parks decides the wiring route. An attached garage next to the panel is the shortest job. A detached garage means a trench or an overhead run, and a driveway charger needs a weather-rated unit on a post or the side of the house. In two-family and condo buildings, the charger has to be fed from the right unit panel or the house meter, which changes the plan.
Long runs need larger wire to keep voltage drop in check, and that can move the cost more than the charger does. We measure the distance, plan conduit where the cable is exposed, and place the charger so the cord reaches the port without crossing a walkway. Winter matters too: a charger mounted where the plow piles snow takes a beating.
EV and panel work we do in Waltham
EV Charger Installation
Level 2 chargers in garages, on driveways and at shared parking.
Smart Panel & Load Management
Devices that let a modest service carry an EV without an upgrade.
Electrical Panel Upgrade
More capacity when two EVs and electric heat are on the list.
Dedicated Circuit Installation
240 volt circuits sized to the charger you choose.
Heat Pump Electrical Wiring
The next big load many EV owners add, planned into the same calculation.
Whole-House Surge Protection
Protection for charger electronics and the rest of the house.
Tell us what is happening and where. We answer day and night.
Call (617) 843-6591EV charger questions from Waltham drivers
You can charge slowly on a standard 120 volt outlet, which suits some short commutes. Most drivers want a Level 2 charger on a 240 volt circuit for faster overnight charging.
Not always. A load calculation might show spare capacity, and a load management device can let a charger share capacity with the rest of the house. A service upgrade is one option among several.
Yes, Eversource runs a residential EV charging program for Massachusetts customers. Terms and eligibility change, so check the current details before buying a charger.
Yes. We use an outdoor-rated charger, weatherproof connections and conduit for exposed runs, and place it out of the way of plows and foot traffic.
Yes. Phones are answered 24/7, and urgent problems such as dead circuits or a hot outlet get an electrician sent out.