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Electrical Fuse Box Replacement
Panel capacity is the question underneath almost every other electrical ask in a house. A service either carries what the house asks of it or it does not, and a load calculation answers that in numbers rather than opinions.
Electrical Fuse Box Replacement in O’Fallon and across St. Charles, St. Louis, Lincoln and Warren counties.
Clint Ehman does the work himself. Seventeen years in the trade, Infinity Electric since June 2022.
5.0 from 94 Google reviews · BBB A+ since 2022
What this work actually involves
The load gets calculated against what the house actually runs, not against a rule of thumb. If the existing service carries it, you hear that.
First the reading, then the explanation, then the repair scoped to what was actually found. If that turns out smaller than the job you called about, that is what you are charged for.
Work needing a permit gets one and work needing an inspection is left ready for it. There is no handoff between whoever quotes and whoever fixes, because they are the same person.
When people call about this
- Fuses instead of breakers
- Lights that dim when a large appliance starts
- Breakers that trip under normal load
- A panel brand an inspector flags on sight
Why people choose Clint for it
A one-person shop cannot be in two places at once, so you get a real date instead of a window. What you also get is the same person every time.
Seventeen years in the trade, four of them on his own, 5.0 from 94 Google reviews and an A+ BBB accreditation since 2022.
Where this is done
Out of O’Fallon across five jurisdictions: St. Charles County, St. Louis County, St. Louis City, and Lincoln and Warren counties. About fifty miles in any direction.
See the full service area, or the rest of our panels & service work.
Why panels fail where they do
Failures happen at connections, because that is where heat cycles do their work. A lug that was never torqued to spec loosens, resistance climbs, and the heat discolours the bus.
That is why a panel inspection is partly a visual one. Discolouration, pitting on a bus bar and a smell at the cover all say the same thing, and none of them improve on their own.
Why the bus matters more than the breakers
Breakers are replaceable parts. The bus bar they clip onto is not: it is the panel. Heat damage there shows as discolouration, pitting, or a breaker that will not sit tight, and none of those improve on their own.
That is why a panel assessment means taking the cover off rather than reading the label on the door. A panel with a sound bus and a tired breaker is a cheap repair. A panel with a damaged bus is a replacement, and you are told which you have with the reason attached.
Going from fuses to breakers
A fuse panel is not illegal and it is not inherently unsafe, but it has no ground, limited capacity, and a failure mode where a fuse gets replaced with a larger one and the wire behind it is no longer protected. Most of them were installed for a house with far fewer loads than it now carries.
The conversion is a service change: new equipment, grounding and bonding brought current, every circuit identified and labeled, the utility coordinated for the disconnect, and an inspection at the end. It is also the point at which insurers and buyers stop asking questions about the panel.
What a tripping main actually means
A branch breaker trips to protect its circuit. The main trips to protect the service, which means the whole house asked for more than the service carries at that moment. Those are completely different findings.
A main that trips is a capacity conversation and it needs the load measured under real conditions rather than guessed at. It is also the one symptom where the answer genuinely is sometimes a service upgrade.
Why the diagnosis comes before the quote
A symptom has several possible causes with very different prices, and the only thing that separates them is a measurement. Quoting the expensive one covers the risk; quoting the cheap one and finding the expensive one mid-job is worse.
So the reading happens first, you are told what it says, and then the work is scoped to it. Where the honest answer is the small repair, that is the answer you get, even when the larger job pays better.
“Clint did an excellent job installing two bathroom exhaust fans. He installed high-quality fans that were far superior to the ones I had purchased from a big box store. I highly recommend his services.”
David Hinners · Google review
How the visit goes
- The call
You describe what the house is doing and what prompted it: a tripping breaker, an inspector’s note, a planned addition. That shapes what gets measured first.
- The measurement
Load across the service under real conditions, voltage at the main, the condition of every lug and the bus. On an older panel, the breaker brand gets identified, because some have no listed replacement still made.
- The finding
You get the number and what it means. If the service carries what the house asks of it, you hear that, and the conversation becomes a sub-panel or a single circuit instead of a service upgrade.
- The work
Permit where required, utility coordinated for the disconnect, new equipment installed, every circuit identified and labeled, and the site left ready for the inspector.
What the job includes
- A load calculation against what the house actually runs, given to you as a number
- Permit application where the municipality requires one
- New panel, breakers and a legible circuit directory
- Utility coordination for the disconnect and reconnect
- Grounding and bonding brought to current requirements
- The site left ready for inspection, and the inspection attended
What it does not
- Drywall repair beyond the panel opening
- Appliance repair, which is a different trade
- Work on the utility side of the meter, which is the utility’s own
Anything that is not an electrical problem gets identified as such and handed on. See finished work, or say what the house is doing.
Related panels & service work
Electrical Fuse Box Replacement across the metro
Where the house is changes what the work involves. Clint works out of O’Fallon across five jurisdictions, and the same service means different work in each.
Warren County
Which of those you have changes the entire conversation, so the first visit establishes what is actually there rather than assuming from the address.
St. Charles County
Twenty and thirty year old subdivisions where nothing has failed and the service is simply at its limit. That is the recurring call.
St. Louis County
This is where the genuinely old wiring lives: cloth insulation, no equipment ground, fuse panels and the mid-seventies aluminum. Each has an accepted remedy rather than requiring a whole-house rewire.
Every municipality covered is listed on the service areas page.
Questions worth asking first.
Do I need a bigger service, or just more space in the panel?
Those are different problems. A full panel with spare capacity takes a sub-panel or tandem breakers. A panel that is out of capacity takes a service upgrade, and the load calculation tells us which one you have before anything is ordered.
Will the power be off all day?
A panel change means the service is off while the work happens, usually most of a working day. You will be told the window before the day starts, and the utility and inspection timing are arranged around it.
How do I know if my panel brand is a problem?
Federal Pacific Stab-Lok and Zinsco both have documented failure-to-trip histories and no current listed replacement breaker, so the panel gets replaced rather than repaired. The label on the door identifies it in seconds.
Are you licensed and insured?
Licensed, bonded and insured, with workers compensation coverage, and accredited A+ with the BBB since 2022.
Where do you work?
Out of O’Fallon across St. Charles County, St. Louis County, St. Louis City, and Lincoln and Warren counties, roughly a fifty mile radius.
Worth a call before it gets worse.
Heat, a smell or a repeated trip is the house reporting something real. Electrical Fuse Box Replacement in O’Fallon and across the metro.
Mon-Thu 8-5 · Fri 8-4 · Sat 10-3. A written note works too.