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Fast, Reliable EV Charger Installation Across Fontana
EV charger installation in Fontana typically costs $800-$2,200 for a standard Level 2 circuit, and $2,500-$4,000 when a panel upgrade is required. Most Fontana homes we serve are back on the road with a fully tested charger within one to two days of the initial site visit. If you live in the 92334 or 92335 flatlands, the odds are good your 100-amp panel needs a hard look before anything gets wired. Call Gus’s Solar at (877) 550-6892 and we’ll give you a straight answer, not a sales pitch.
Why Gus’s Solar Is Fontana’s Preferred EV Charger Installation Company
Gus Petrakis founded this company in 2011 and still answers his own phone. That matters in Fontana, where homeowners have dealt with enough out-of-area crews that quote one number over the phone and show up with another. We’re not a call center and we’re not a franchise. When you call (877) 550-6892, a live person picks up, 24/7, and Gus’s own crew does the install, not a subcontractor.
The team knows Fontana’s housing stock block by block. We’ve pulled permits at Fontana Building & Safety, worked through the 100-amp panel issues that plague the 92334 and 92335 flatlands, and wired chargers into the big Spanish-tile homes off Duncan Canyon Road in 92336. That local experience means we don’t get surprised mid-job, and we don’t surprise you with change orders. Every job is backed by the 90-Day Done Right Promise: if it’s not right, Gus makes it right, in writing.
Our EV Charger Installation Services in Fontana
Level 2 Charger Installation
A Level 2 charger is the practical choice for most Fontana drivers. It delivers 25-40 miles of range per hour versus the 3-5 miles you get from a standard wall outlet. We install dedicated 240-volt circuits, mount the unit, configure it, and test it under load. In Fontana’s older flatland neighborhoods, we check the existing panel first because a 100-amp service from the 1960s may not have room for a 40 or 48 amp charger without tripping the main.

Tesla Wall Connector Installation
The Tesla Wall Connector is the most requested charger we install in Fontana, especially in North Fontana’s newer subdivisions. It needs a 60-amp circuit to deliver its full 44 miles of range per hour. We handle the complete install: circuit, wiring, mounting, commissioning, and a load test. If your panel is undersized, we’ll quote the panel upgrade up front so you’re not surprised after the drywall is open.

Panel Upgrade for EV Charging
This is the single most common surprise for Fontana EV owners. Homes built in the 1950s through 1970s in 92334 and 92335 often still run on 100-amp service. Add a 48-amp charger, air conditioning on a 105°F afternoon, and a dryer cycle, and that main breaker will trip. We replace the panel, upgrade the service entrance, and coordinate with Fontana Building & Safety on permits and inspection. A typical 200-amp upgrade runs $2,800-$4,000 in Fontana depending on the existing service configuration.

Garage & Driveway Charger Wiring
We run dedicated circuits to attached garages, detached garages, carports, and driveway pedestals. In Fontana’s older 92334 neighborhoods, we often repurpose the old dryer circuit or pull a new feeder line from the main panel to a detached garage at the back of the lot. Every run is sized for continuous load, which matters in Fontana’s heat: a charger pulling 48 amps for six straight hours generates real heat in the conduit and terminations, and undersized wire will fail.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Fontana
Gus’s Solar works with equipment from Panasonic, Canadian Solar, and FranklinWH, and we service chargers from Tesla, Enphase, SolarEdge, SunPower, Qcells, REC, and JinkoSolar. We keep common breaker sizes, conductors, and connectors in stock for Fontana jobs, which means we don’t have to push your install back a week waiting on a parts truck from Riverside. If a charger you bought elsewhere isn’t performing, we’ll diagnose it, repair it, and stand behind the work.
Common EV Charger Installation Problems We See in Fontana Homes
- Undersized 100-amp panels tripping the main breaker. Fontana’s inland thermal trough pushes summer highs to 105-112°F. When a Level 2 charger runs during the afternoon heat alongside central air, the main trips. We see this constantly in the 92334 and 92335 flatlands.
- Dust and smog fouling charger internals. Fontana sits hard against the San Gabriel and San Bernardino mountain wall, which traps Mojave-origin dust and smog. That particulate coats charger plug contacts and internal boards, causing intermittent connection faults that read as “charging interrupted” on the car’s display.
- Non-permitted installs from out-of-area contractors. We’ve followed too many of these. A crew quotes a Level 2 charger without pulling Fontana permit history, skips the panel upgrade, and leaves the homeowner with a charger that can’t run at full speed and won’t pass inspection.
- Inadequate wire gauge for continuous load. A charger is a continuous load device. The National Electrical Code requires 125% ampacity sizing. Some installs we’ve corrected used 10-gauge wire on a 48-amp charger, which overheats in Fontana’s summer and damages terminations.
Pricing for EV Charger Installation in Fontana, CA
A standard Level 2 charger install in Fontana runs $800-$2,200, depending on the distance from the panel to the charging location and whether the garage is attached or detached. A Tesla Wall Connector install typically lands between $1,000 and $2,000 in Fontana when the panel has capacity and the run is straightforward. If you need a panel upgrade to 200 amps, budget $2,800-$4,000. That’s the line item that catches people off guard in the older flatland neighborhoods. We give you the full number up front, in writing. Bring us your utility bill and we’ll bring you the math.
We Also Serve Cities Near Fontana
Gus’s Solar installs EV chargers in Bloomington, Rialto, Glen Avon, and Pedley as well. If you’re just outside Fontana, call (877) 550-6892 and we’ll tell you if we cover your street. The same crew, the same 90-Day Done Right Promise, and the same straight pricing apply throughout the Inland Empire. You can also read more about our EV Charger Installation services or see what we do across Fontana.
Serving Fontana, CA - Our Local Coverage Area
We’re based in the Fontana area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - EV Charger Installation in Fontana
Probably not at full speed. A 48-amp charger needs 60 amps of capacity on its own, and a 100-amp panel already serves your lights, outlets, water heater, and AC. When the afternoon temperature hits 105°F and the air conditioner cycles on, the main breaker will trip. We can either derate the charger to 32 amps and accept slower charging, or upgrade the panel to 200 amps and run the charger at full speed. Call (877) 550-6892 and we’ll check your panel’s actual load before we quote anything.
Fontana’s inland thermal trough regularly runs 10-15°F hotter than SCE’s coastal territory. That heat derates EV charging electronics. Chargers and circuit breakers are rated at 40°C ambient, and when a garage in Fontana hits 110°F or more, the charger reduces its output current to protect itself, which slows your charge. Undersized panels compound the problem because the breaker itself overheats and trips. We size everything for Fontana’s real summer conditions, not the mild coastal numbers other installers use.
Yes, and it’s one of the smarter moves in Fontana. When you charge your EV during daylight hours from your own rooftop production, you avoid drawing grid power at peak afternoon rates. Your NEM credits offset what you pull at night. In Fontana’s heat and dust, solar panels lose 8-15% of output to soiling without regular cleaning, so pairing a charger with a system you’re actively maintaining matters. We scope the charger load, the panel size, and the cleaning schedule together so the production math actually holds. Bring us a bill and we’ll bring you the math.
Many 1990s North Fontana homes on Spanish S-tile roofs were built with 125-amp panels, which leaves little headroom after air conditioning and pool pumps. A Tesla Wall Connector at full 48-amp output draws 60 amps of continuous load. We’d need to see your panel’s load calculation, but if you’ve added a second refrigerator, a home office, or a pool pump since the house was built, the upgrade to 200 amps becomes the difference between a charger that works every night and one that trips when the AC kicks on. Call (877) 550-6892 for an exact quote.
Yes. Fontana Building & Safety requires a permit for any new electrical circuit, including a dedicated EV charger circuit. We pull the permit, schedule the inspection, and make sure the job passes the first time. We also carry the insurance and bonding Fontana requires, and every technician is background-checked and uniformed. The $2,500-$4,000 panel upgrade line item that catches out-of-area quotes is exactly the kind of thing a permit history check catches, which is why we pull the history before quoting, not after the wall is open.
If you’re ready for a straight answer on EV charger installation in Fontana, call Gus’s Solar at (877) 550-6892. We’ll send one of our own technicians to your home, assess your panel and your charging needs, and give you one price in writing. Take two weeks and think about it. The price will be the same.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Fontana since 2011.






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