Outdoor EV Charger Installation — What You Need to Know

Not everyone parks in an attached garage. Plenty of Central PA homeowners want their EV charger on an exterior wall, under a carport, or in a detached garage — and that's completely doable. Here's what's involved and what to expect.

Outdoor Chargers Are Built for It

Most Level 2 chargers on the market — including the Tesla Wall Connector and ChargePoint Home Flex — are rated for outdoor installation. They're weatherproof and built to handle Pennsylvania winters, rain, and temperature swings. The charger itself isn't the concern. The installation is where it matters.

The Conduit Run

Any outdoor installation requires weatherproof conduit running from your electrical panel to the charger location. The longer the run, the more material and labor is involved. For a charger mounted on the exterior wall of the house near the garage, this is usually straightforward. For a detached garage across a driveway, the conduit may need to run underground — which is a bigger job but still very common.

Underground conduit runs need to be buried at the proper depth per code — typically 24 inches for direct-burial cable or 18 inches in conduit. We handle the trench, conduit, backfill, and surface restoration as part of the job.

Detached Garages and Sub-Panels

If your detached garage is far from the main panel or you want flexibility for future electrical use (lighting, tools, a second charger), installing a sub-panel at the garage is often the right move. A sub-panel gives the structure its own electrical capacity and makes everything cleaner. We assess this during your free estimate and give you both options with costs for each.

Cold Weather Considerations for Pennsylvania

Pennsylvania winters are real. A properly installed outdoor charger handles the cold just fine — but there are a few things worth knowing. EV batteries charge more slowly in very cold weather (this is a battery chemistry issue, not a charger issue). Keeping your vehicle plugged in when not in use lets the battery management system maintain temperature and improves cold-weather range. An indoor or garage-mounted charger protects both the charger and the cable connection from the worst of the weather.

Cost for Outdoor Installs in Central PA

Outdoor and detached garage installs in our service area typically run $1,200–$2,200+ depending on the distance of the conduit run and whether a sub-panel is needed. This is more than a standard indoor install, but still very reasonable for what you're getting. The federal tax credit covers 30% of installation costs up to $1,000 — but it expires June 30, 2026, and eligibility depends on whether your home is in a qualifying census tract. Full eligibility details here.

We'll give you an exact number after we see your setup. Every outdoor install is a little different, and we don't quote without looking first.