EV Charger Circuits, Level 2 Wiring and Charger Replacements
Dedicated 240-volt circuits, panel capacity and charger replacements so Level 2 charging works at full speed without nuisance trips.
The charger is the easy part. The panel isn't.
Most EV charging problems are panel problems. The charger comes with a clear instruction sheet; what it cannot tell you is whether your service carries another 48 amps of continuous load, whether a breaker space is left, or whether the busbar rating allows it.
That is the question we answer for a living. We run the load calculation, tell you what your panel supports today, and give you options if it does not: a load-managed circuit, a subpanel, or a service upgrade. For reference, a 40-amp circuit adds roughly 25 to 30 miles of range an hour, and a bigger circuit only helps if the car can accept it.
- Dedicated 240V circuit sized to the charger's continuous load
- Copper conductors in conduit, run cleanly along the garage wall
- Hardwired installation or a NEMA 14-50 outlet, your choice
- GFCI protection per current code
- Circuit labeled and documented in the panel directory
When your panel is already full
A full panel does not automatically mean a service upgrade. A load-management device that pauses charging when the house is drawing heavily, a subpanel closer to the garage, or reconfigured circuits can free the capacity instead.
When an upgrade is the right answer we quote the panel work and the charger circuit together, so there is no second trip charge.
- A 40-amp circuit on a 50-amp breaker is the common Level 2 install
- A 48-amp charger needs a 60-amp circuit and hardwiring, not a plug
- A 100-amp service with AC and electric appliances rarely has room for either without load management
- Load management sometimes beats an upgrade, and we will say when
- A charger set to draw more than its circuit can carry is the most common problem we are called to fix
Replacing a charger, or fixing an install that was never right
Early Level 2 chargers are now a decade old: contactors wear, connectors get brittle in Colorado winters and app support gets discontinued. Replacing the unit is straightforward when the circuit behind it is sound, so we verify the circuit, conductors and breaker before mounting anything new.
A lot of first-generation installs landed on a 30-amp circuit, so we check whether the conductors, breaker and panel capacity support an upsize before recommending one. We also find undersized wire, missing GFCI protection, unpermitted work and receptacles discolored by a loose connection. When something is unsafe we photograph it, explain it and quote the correction.
- Direct charger swaps on existing, verified circuits
- Upsizing a 30A circuit to 48A or 60A where the conductors allow
- Correcting non-compliant first installs, with photos
- Relocating a charger to a new garage or a new home
- Old receptacle replaced when it shows heat damage
Our process
How an EPO ev charging job runs
- 01
Capacity check
We evaluate your panel, run a load calculation, and on a replacement test what the existing circuit is actually delivering.
- 02
Route and placement
We agree on charger location, cable reach and conduit routing so the finished install looks intentional.
- 03
Quote and permit
Fixed price including the permit and inspection, with the panel work quoted alongside it when capacity is tight.
- 04
Installation
Circuit run, charger mounted or receptacle installed, everything tested with the vehicle.
- 05
Inspection and handoff
Permit closed out, and we confirm the charge rate at the car.
Pricing
What moves the price on this job
We quote after seeing the equipment, because these details change the number more than anything else.
- Distance from the panel to the charger location
- Circuit amperage and conductor size
- Surface conduit versus concealed routing
- Available panel capacity and breaker spaces
- Hardwired charger versus receptacle
- Straight swap versus circuit upgrade on a replacement
- Permit fees in your jurisdiction
Still deciding?
The fastest way to get a real answer for your home is to have a tech open the panel. The on-site estimate is free, and you leave with a written price for ev charging.
Want the long version first? Read What Your EV Charger Needs From Your Electrical Panel.
Monthly payments available through Hearth
Prequalifying takes about a minute and uses a soft credit check, so checking does not affect your credit score. Or read how financing works.
Financing provided by third-party lenders through Hearth, NMLS #1628533. Not a commitment to lend.
FAQ
Common questions about this job
Do I need a panel upgrade to install a Level 2 charger?
Not always. It depends on your service size and how much of it your household already uses. We run a code-based load calculation before quoting, and plenty of 200-amp homes take a charger with no panel work at all.
Do you supply the charger?
We install a charger you have already bought, including dealer-supplied units, or advise on models that suit your vehicle and panel. What we are responsible for is the circuit behind it: conductor size, breaker, conduit, GFCI protection and the permit.
Is a permit required for an EV charger circuit?
Yes, for any new or modified circuit in every jurisdiction we work in. We pull it, meet the inspector and close it out. Skipping it is the most common problem we find in other people's installs.
Can I just use a regular outlet?
A standard 120V outlet adds roughly three to five miles of range per hour. It works for very short commutes; most households want a Level 2 circuit.
Search every question we get asked on the full FAQ page.
Where we work
EV Charger Circuits across the Front Range
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