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Smart Home Electrical Installation
Cameras and doorbells need power planned, not improvised. Smart devices are easy to buy and easy to install badly, usually because the box behind them was never wired for one.
Smart Home Electrical Installation in O’Fallon and across St. Charles, St. Louis, Lincoln and Warren counties.
Clint Ehman, seventeen years in the trade, running Infinity Electric out of O’Fallon since 2022.
5.0 from 94 Google reviews · BBB A+ since 2022
What this work actually involves
Runs are labeled at both ends, so the next person can trace them without opening every wall plate.
The measurement happens before the number. You hear what the reading says in plain words, then what it means, then what it will take to fix. Where the fix is small you are told that rather than sold past it.
Permits get pulled where the municipality asks for one, and the work is left ready for the inspector with the panel labeled. The same person does the diagnosis and the repair.
When people call about this
- Cameras on extension cords
- A remodel wanting structured wiring
- Wi-Fi that dies at the garage
- A thermostat with no C wire
Why people choose Clint for it
There is no dispatcher taking a description for someone else to act on, and no commission riding on what the visit totals. The person who measures it is the person who fixes it.
Seventeen years in the trade and four running Infinity Electric out of O’Fallon, with 5.0 from 94 Google reviews and BBB accreditation since 2022.
Where this is done
O’Fallon first, then the rest of St. Charles County, St. Louis County and the City, and out to Lincoln and Warren. If you are just past that, the call is still worth making.
See the full service area, or the rest of our smart home & low voltage work.
Box depth, which nobody checks until it is too late
Smart devices are deeper and bulkier than what they replace, and the existing box is frequently too shallow once the conductors are folded back in. Forcing it is how terminations get stressed.
Depth and box fill get checked first, and where a box is too small the honest answer is a deeper box rather than a device crammed in.
Neutrals, and why smart switches fail
A smart switch needs power all the time, which means it needs a neutral in the box. Plenty of older switch loops do not have one, and that is the single most common reason a brand new smart switch misbehaves.
There are no-neutral devices that work by leaking a trickle through the load, and they are fussy with LED fixtures. Checking the box first avoids the return trip.

Where house calls usually land
Most calls start with a symptom rather than a diagnosis: a breaker that keeps tripping, a room that went dead, a warm cover plate, lights dimming when the furnace starts.
Each of those has a short list of causes and a measurement that separates them. You get the reading and what it means before any work is agreed.
Deciding what is worth wiring
The devices worth hard-wiring are the ones you rely on: switches, thermostats, locks, cameras at the approaches. The ones worth leaving on a plug are the ones you would not miss.
Neutral availability, box depth and signal at the wall decide what can physically go in, and local control decides what still works when the internet does not.
What gets left behind when the work is done
A labeled panel, accessible junctions, the old parts if you want to see them, and a straight account of anything found along the way that was not part of the call.
Where something else was found, you get told what it is and whether it needs doing now, later or not at all. That third answer is a real answer and it gets used.
“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 device, which wall, and what it needs to do when the internet is down.
- The measurement
Whether the box has a neutral and the depth for the device, what the existing load is, and the signal at that wall.
- The finding
Which devices will actually work there. Sometimes the answer is a different device, sometimes a transformer, sometimes a new run.
- The work
Wired for local control, runs labeled at both ends, tested on your network rather than at the wall.
What the job includes
- Checking the box for a neutral and for depth before anything is ordered
- Devices wired so they work when the internet does not
- Runs labeled at both ends and documented
- Transformers where an older house lacks one
- Low-voltage terminated in a panel, not a knot
- Testing on the actual network, not just at the wall
What it does not
- Ongoing app and account support
- Internet service and router configuration
- Subscription cameras we have not installed
Work that is not electrical gets a referral, not a quote. See finished work, or say what the house is doing.
Related smart home & low voltage work
Smart Home Electrical Installation across the metro
The same job is not the same job in every part of this metro. Five jurisdictions, five different sets of conditions, all worked out of O’Fallon.
Warren County
Warren County mixes newer builds with older farm properties, and generator work comes up more often there than it does in town.
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
Houses with real history in the walls, and a permit process that changes from one municipality to the next.
The full footprint, county by county, is on the service areas page.
Questions worth asking first.
Can you wire a doorbell camera?
Yes, including the transformer most older houses lack. A hardwired doorbell keeps working when the batteries and the Wi-Fi do not.
Will my smart switches work if the internet goes down?
Devices that keep local control will. Cloud-only devices become a wall plate, which is worth knowing before they go in.
Does my box have room for a smart device?
Smart devices are deeper than what they replace, so box depth and fill get checked first. Sometimes the honest answer is a different device.
Do you pull permits?
Where the municipality requires one, yes, and the work is left ready for inspection with the panel labeled and junctions accessible. Requirements genuinely differ across this metro, which is why it is established per address rather than assumed.
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.
Find out which problem you have.
Several causes, very different prices, and only a measurement separates them. Smart Home Electrical Installation in O’Fallon and across the metro.
Weekdays 8-5, Fri to 4, Sat 10-3 · or describe it in writing.

