Some properties ask more of their electrical service than even a 200-amp panel can give, and that is where the real capacity questions begin. A large custom home, a property with a shop or outbuildings, or a household running multiple heat pumps, EV chargers, and heavy equipment can push past a standard residential service entirely. BK Electric meets that demand with 400-amp electrical service upgrades for property owners across Bozeman, MT, and the surrounding areas. We build in the capacity that big homes and working properties actually require.
Operating from Bozeman, Montana, as a family-run electrical company, BK Electric serves property owners throughout the Gallatin Valley who need serious electrical capacity. High-amperage service upgrades are part of what we do, and stepping a property up to 400 amps supports the kind of load that outstrips a standard service. The work involves coordinating with the utility, upgrading the meter and service equipment, installing the panels and subpanels the property needs, and sizing everything for demanding, high-draw use.
The trouble shows up on properties that are simply doing more. A sprawling home with multiple heat pumps, a detached shop running welders and compressors, a barn or guest house drawing its own load, and a couple of EV chargers in the mix can add up to demand a 200-amp service was never meant to carry. When the total load approaches what the service can supply, you end up managing what runs when, and adding anything new becomes a real problem.
The cause comes down to sheer scale. A standard 200-amp residential service covers a typical home comfortably, but larger properties stack load on top of load in ways that quickly outgrow it. Heavy shop equipment, multiple high-efficiency HVAC systems, outbuildings with their own panels, hot tubs, saunas, and several EV chargers each demand substantial power, and running them together requires far more capacity than a normal home. Trying to serve all of that from a 200-amp service leaves the system maxed out with no room to grow.
Building the right service takes careful planning. A licensed electrician from our team performs a full load calculation across the whole property, accounting for the home, any outbuildings, and every major piece of equipment you run or plan to add. We confirm what a 400-amp service involves for your site, coordinate with the utility on the larger service, and pull the permits. On installation day we upgrade the meter and service equipment, install the main panel and any subpanels needed for shops or outbuildings, land every circuit properly, and test the full system before energizing it.
With the upgrade in place, the whole property runs on capacity built for its real demands. The house, the shop, and every EV charger can operate together without straining, and there is room left to expand as your needs grow. A 400-amp service gives a large or working property the electrical foundation it needs, which is something a standard service simply cannot provide.
Stepping up to a 400-amp service opens doors that a standard service keeps closed, and the advantages scale with your property.
A 400-amp service carries the combined load of a large home, a shop, and outbuildings without strain. Everything can run together instead of forcing you to choose what operates when.
Welders, compressors, lifts, and other shop equipment demand serious current that a standard service cannot spare. A high-capacity service delivers the steady power that heavy tools need to run right.
Large properties often need dedicated panels for a shop, a barn, or a guest house. A 400-amp service provides the backbone to feed those subpanels reliably from one main service.
Households with more than one electric vehicle need capacity that adds up fast. A 400-amp service supports several chargers at once, so every vehicle is ready to go each morning.
Building in extra capacity now means future additions do not require another service overhaul. Whatever you add later, from a new outbuilding to more equipment, the service is ready for it.
A high-amperage upgrade often ties into other panel and capacity work, and these related services complement our 400-amp electrical service upgrades.
Not every property needs a full 400 amps, and for many homes our 100-amp to 200-amp electrical service upgrades service is the right fit. We help you land on the capacity that actually matches your household.
When the aim is powering specific high-draw additions, our panel and capacity upgrades for EV chargers, hot tubs, and saunas service focuses on exactly that equipment. We add the circuits and capacity your additions require.
Beyond raising your amperage, our full range of electric panel upgrades and service upgrades covers panel replacements, subpanels, and code-compliant installs. The same crew that builds your high-capacity service can handle every related piece.
A high-amperage upgrade is a substantial project that rewards real experience, and here is why property owners across the valley rely on us.
A 400-amp job is a serious undertaking, and it belongs with a crew that has to face you at the grocery store. We are a family-owned Bozeman business with over 10 years of combined experience on demanding projects.
A 400-amp project calls for serious qualifications, and ours check out: master-level licensing, full insurance, certified Generac dealer status, and membership in the Bozeman Chamber of Commerce.
We perform a full load calculation across your entire property rather than estimating, so the service is sized to what you actually run. That thorough planning keeps the finished system from coming up short.
Every high-capacity upgrade starts with a free estimate that spells out the full scope and cost. You understand the project completely before we schedule a thing.
A project this size deserves a guarantee, and our one-year workmanship warranty gives you one. If anything tied to a 400-amp job we completed needs revisiting, we handle it.
That depends on your total load, which is why we run a full calculation across the home, any outbuildings, and your equipment. Large homes, working shops, and properties with multiple heavy loads are the typical candidates.
Yes, a 400-amp service provides the backbone to feed dedicated subpanels for a shop, barn, or guest house. We plan those subpanels as part of the upgrade so each building has reliable power.
A 400-amp upgrade generally involves larger service equipment, more extensive load planning, and often multiple panels, so it is a bigger project. We walk you through exactly what it takes for your property.
It can, since the added capacity supports several chargers running at once along with your other loads. We size everything so every vehicle charges without straining the system.
We do, and utility coordination is a key part of any high-capacity upgrade. We manage the permits, the service change, and the inspections from start to finish.
FAQs reviewed by Brandon Kruzicki, owner of BK Electric, a licensed and certified electrician.
Contact BK Electric for a free estimate on your 400-amp electrical service upgrade. We will calculate the load, coordinate with the utility, and build the capacity your property demands.
Business Name: BK Electric
Address: Bozeman, MT, 59715
Phone: 406-414-6954
Business Hours:
Mon - Fri: 08:00 AM to 06:00 PM
Sat-Sun: Closed
One-year workmanship warranty.