Panel Upgrades & Service Changes in Colebrook, NH
Modern service panels and service changes sized for today's loads and tomorrow's growth.
Your electrical panel is the heart of your system, and if it is too small, too old, or showing its age, everything downstream suffers. Belknap Electric handles panel upgrades and service changes across northern New Hampshire's North Country and Vermont's Northeast Kingdom, from our shop in Colebrook. We replace old fuse boxes, upgrade 100-amp services to 200 amps, and add capacity for the loads modern homes and businesses actually use.
A panel upgrade is often the right move when you are adding a heat pump, an EV charger, a standby generator, or a finished basement — anything that pushes your old service past what it was built to handle. We size the new panel and service for what you have now and what you are planning, so you are not back at square one in a few years.

What a Panel Upgrade or Service Change Includes
- Replacement of old fuse boxes and outdated breaker panels
- Service upgrades from 100A to 200A and higher where needed
- Adding capacity for heat pumps, EV chargers and generators
- Service changes to support new construction and additions
- Clean, labeled, organized breaker layouts
- Whole-home surge protection added at the panel
- Generator hookup and transfer switch coordination
When a Panel Upgrade Makes Sense
- Homes and businesses with an old fuse box or undersized panel
- Anyone adding a heat pump, EV charger, generator or major appliance
- Properties adding square footage or finishing new space
- Owners whose panel is full, warm, or tripping breakers regularly
How a Panel Upgrade Goes
- 1
You call 802-624-0209 or send a request through the form on this page.
- 2
We inspect your current panel and service and talk through your loads.
- 3
You get a written quote for the upgrade and any service change needed.
- 4
We schedule the work and coordinate any needed utility involvement.
- 5
The crew swaps the panel and service safely and cleanly.
- 6
We walk you through the new panel, labeling and breakers.
Sized for What Comes Next
Up here, more homes are adding heat pumps, EV chargers and generators every year, and a 100-amp service that was fine a decade ago can run out of room fast. Planning a panel upgrade around those future loads now means one clean project instead of a series of workarounds later.
Is My Panel Ready?
See if your panel is likely ready for what you're adding — no contact info required.
What size is your electrical panel?
"Jason and crew were excellent. Showed up on time and did a great job with a replacement panel with surge protection and generator hookup. Very friendly and explained everything. Converted a rats nest to a professional job. Thank you. Would recommend anytime."
— Eric Graupner · Google review
Panel Upgrades & Service Changes — Frequently Asked Questions
How do I know if I need a panel upgrade?
Common signs include a panel that is full, breakers that trip regularly, a warm or buzzing panel, an old fuse box, or plans to add a heat pump, EV charger, generator or other major load.
Can you upgrade a 100-amp service to 200 amps?
Yes. We upgrade residential and commercial services from 100A to 200A and higher, sizing the new service to your current and planned loads.
Should I upgrade my panel before adding a heat pump or EV charger?
It is often the right move. Heat pumps, EV chargers and generators add significant load, and a properly sized panel and service prevent overloaded circuits down the line.
Can you add whole-home surge protection during a panel upgrade?
Yes. Whole-home surge protection is commonly installed at the panel during a service change, protecting your electronics and appliances from the start.
Do you coordinate generator hookups with a panel upgrade?
We handle generator hookup and transfer switch coordination as part of a panel upgrade so your standby generator is ready to take over when needed.
Tell Us About Your Project
Fill out the form below and we'll get back to you — or call us directly.
802-624-0209Serving Colebrook & the Surrounding Region
From our shop at 12 NH Rte 145 in Colebrook, NH, we travel to homes and businesses across northern New Hampshire's North Country — including Coos County — and Vermont's Northeast Kingdom, on both sides of the Connecticut River.
View our service areas →Related Services
Commercial Electrical
New construction, fit-outs, service upgrades and lighting for businesses across the North Country.
Learn more →Residential Electrical
Installation, repairs, upgrades and maintenance for homes throughout northern NH and VT.
Learn more →Old-Home & Full Rewiring
Complete rewires that respect original plaster, from knob-and-tube to a safe modern system.
Learn more →Ready When You Are
Tell us about your project or call the shop — we'll take it from there.