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EV-Ready Electrical Upgrades
A charger is the first continuous load most houses have ever carried. An EV charger is a continuous load, which means it is sized differently from an outlet you plug a tool into.
EV-Ready Electrical Upgrades in O’Fallon and across St. Charles, St. Louis, Lincoln and Warren counties.
Owner-operated: the person who answers the phone is the person who measures it.
5.0 from 94 Google reviews · BBB A+ since 2022
What this work actually involves
The charger is mounted where the cable actually reaches the car, which sounds obvious and is the most common complaint about other people’s work.
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
- A charger moved from an old house
- A new EV on order
- A charger that trips mid-session
- A panel with no spare double-pole space
Why people choose Clint for it
The diagnosis and the repair are the same person’s work, which is why the explanation you get is first-hand rather than relayed.
Five point zero from 94 Google reviews, A+ with the BBB since December 2022, and seventeen years in the trade behind it.
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 ev charging work.
Where the charger should actually go
Cable length and mounting height decide whether you still like the install a year later. The cable has to reach the car’s port on the side it is parked, with slack to hang without dragging.
Future second cars matter too. Running conduit for a second charger while the wall is open costs very little; adding it later means opening the wall again.
Why charging is treated as a continuous load
The code treats anything drawing for three hours or more as continuous, and sizes its circuit at 125 percent of the draw. A car charges for hours, so a 48 amp charger needs a 60 amp circuit. That multiplier is why charging eats service capacity faster than its nameplate suggests.
It also explains why dialing a charger back is so effective. Dropping from 48 to 32 amps takes the circuit from 60 to 40, which frequently fits inside an existing service, and still fills most cars overnight.
The three answers before a service upgrade
Charging load is the most common reason a house suddenly looks short on capacity, and a service upgrade is only one of three honest answers. The other two are a smaller charger that still fills the car overnight, and load management that shares capacity with the range or dryer.
The load calculation decides which, and you see it. Both alternatives are code-compliant and both are cheaper than new service.
Permits, inspections and why they vary here
Requirements genuinely differ across this metro. O’Fallon, St. Charles, St. Peters, the St. Louis County municipalities and St. Louis City each run their own process, and what one treats as a minor repair another permits and inspects.
Work that needs a permit gets one, and work that needs an inspection is left ready for it with the panel labeled and the junctions accessible. That matters most before a closing, when an inspector’s written item becomes someone’s negotiating position.
What the price actually depends on
Three things move the number on almost every job: how far the run has to travel and what it passes through, whether the existing panel has space and the service has capacity, and whether the municipality wants a permit and an inspection. None of those is visible from the phone call, which is why the measurement comes before the quote.
What does not move it is urgency theatre. There is no inflated figure waiting to be discounted, and no bundle built so the thing you called about cannot be bought on its own.
“Clint came out installed me a large 200 amp panel put some new dedicated lines in my basement and garage he did great clean work all inspections passed he was thorough and knowledgeable. I will have him back out again.”
Jason Holtzman · Google review
How the visit goes
- The call
Which car, which charger, and where it parks. Those three answers decide most of the install before anyone visits.
- The measurement
A load calculation against the existing service, plus the run from the panel to the parking spot and what it passes through.
- The finding
Either the service carries it, or load management lets it share, or a service upgrade is genuinely needed. You hear which, with the number behind it.
- The work
Dedicated circuit sized for continuous duty, disconnect where the code and the inspector expect it, charger mounted so the cable reaches with slack, and a test charge before anyone leaves.
What the job includes
- Load calculation to confirm the service can carry the charger
- A dedicated circuit sized for continuous duty, on its own breaker
- Charger mounted where the cable reaches the car with slack to spare
- Disconnect where code and the inspector expect it
- Permit and inspection where required
- Conduit for a second charger while the wall is open, if you want it
What it does not
- Supplying the charger itself, unless you ask
- Utility rebate paperwork, though we will tell you what exists
- Charging network accounts and apps
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 ev charging work
EV-Ready Electrical Upgrades across the metro
Where the house is changes what the work involves. The housing stock changes as you cross this metro, and so does what the job involves.
Warren County
Newer builds beside older farm properties, with outbuildings and well pumps that town panels never see.
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
Older stock that has been worked on repeatedly, so a panel here has often been added to three or four times by different hands.
County by county coverage is on the service areas page.
Questions worth asking first.
Can my panel handle a charger?
Often yes. The load calculation checks what the house already runs against the service rating. Where it is tight, load management lets the charger share capacity instead of forcing an upgrade.
Level 1 or Level 2?
Level 1 plugs into a standard outlet and adds a few miles an hour, which suits short commutes. Level 2 needs its own circuit and fills a car overnight. The honest answer depends on your daily miles.
Do I need a 60 amp circuit for a 48 amp charger?
Yes. Charging is a continuous load, so the circuit is sized at 125 percent of the charger’s draw. That is also why dialing the charger back is often what keeps a house off a service upgrade.
How long have you been doing this?
Clint has seventeen years in the trade and has been running his own shop out of O’Fallon since 2022.
What do your reviews say?
5.0 from 94 Google reviews, and A+ accreditation with the BBB held since 2022. The reviews are on the reviews page with links to where each was posted.
Worth a call before it gets worse.
Heat, a smell or a repeated trip is the house reporting something real. EV-Ready Electrical Upgrades in O’Fallon and across the metro.
Reachable Mon-Thu 8-5, Fri 8-4, Sat 10-3. Outside those hours, leave the details.