Our Services
Electrical Panel Upgrades in Glendora, CA
Honest pricing and licensed C-10 work — tell us what you need and we’ll follow up with a clear estimate.
Panel Upgrades
An upgrade isn't a repair. A repair fixes something that broke. An upgrade gives your home more power. The difference matters.
Say you want to add an EV charger, or you're building out a new room, or your panel can't handle the way a modern house uses electricity. That's an upgrade. You're moving from a smaller service to a bigger one, usually a jump in amperage, so everything you plug in has the headroom it needs.
Frank Chiavarini has done this work in Glendora since 1981. He is california C-10 licensed electrical contractor, #415324, verifiable with the California Contractors State License Board (CSLB) at cslb.ca.gov. We handle electrical panel upgrades in Glendora, CA, from the first load calculation to the final sign-off, permit and all.
What's Included
What's Included in a Panel Upgrade
Each home is a little different, but the work generally falls into these buckets.
Amperage capacity increase
This is the core of it. Most upgrades move a home from 100 amps up to 200, sometimes higher. More capacity means your AC, oven, dryer, and charger can all run without the main giving out. If your service was sized for a 1970s house, it's working harder than it should.
Main panel upgrade for EV charging or home additions
Charging your car at home takes real power. A new kitchen or a garage conversion does too. We size the main service for what you are actually adding. We have wired plenty of EV charger setups, including Tesla Wall Connectors. Get it right the first time; you won't be coming back in two years asking for more.
Sub-panel installation
Sometimes the fix isn't a bigger main. It's a sub-panel closer to where the load lives, like a workshop, a detached garage, or an addition at the far end of the house. A sub-panel takes pressure off the main and keeps those long circuit runs clean and safe.
Code compliance updates
Older service equipment often doesn't comply with current code, and an upgrade is the logical time to bring it up to date: new grounding, proper bonding, arc-fault, and GFCI protection where needed. When we're finished, your system will pass inspection and be safer in the long run.
You're installing an EV charger or big new appliances
A charger, a hot tub, a second AC unit. Add enough load and your existing service runs out of room fast.
You're remodeling or adding on
More square footage means more circuits. A remodel or a home addition often pushes the electrical load past what the panel was built to carry.
Your panel still uses fuses or is under 100 amps
Fuse boxes and 60-amp service belong to another era. If that's what you've got, an upgrade isn't really optional anymore.
You keep overloading with everyday use
Modern homes ask a lot. If the microwave and the space heater together trip the main, the panel is running on fumes, and it's telling you so.
How It Works
Our Panel Upgrade Process
We work in an orderly fashion, and you know the plan before we start.
Load assessment
Frank calculates what your house really uses, plus whatever you're adding, so we size the new service properly.
Recommendation and estimate
You get a clear recommendation and price. No anonymous figures.
Permit and installation
We get the permit, then we do the install with the proper equipment and clean artistry.
Utility coordination
Service upgrades usually require the power company to disconnect and reconnect. We plan for that to happen with the utility at the time of the work.
Final inspection
The city inspects, we test, and you're ready to roll with a service that fits how you live today.
Why Us
Why Choose Us for Panel Upgrades
Licensed work, clear communication, and the job done right the first time — here's what that looks like with us.
40-plus years of upgrade work
Upgrades have more moving parts than a simple fix. Frank's been running all that for 40-plus years, so it rolls along instead of dragging.
Upfront estimates, same electrician
Estimates are up front. Downtime is reduced to a single window, with the power off, rather than a day in the dark. And Frank does the work himself, just like his Yelp reviewers describe. You work with the same electrician from start to finish, not a rotating crew.
Service Area
Panel Upgrade Services Near You
Based in Glendora since 1981 — serving homes and businesses across the San Gabriel Valley and nearby cities.
We're based in Glendora, and a lot of this work happens there.
Demand runs high across the San Gabriel Valley, too. In Upland, older homes drive steady interest in electrical panel upgrades in Upland, CA, especially the ones adding EV chargers. In Arcadia, we handle main electrical panel upgrades for larger homes and remodels that have outgrown their original service.
We also cover Diamond Bar. Not sure if you're in range? Call and ask.
Not sure you're in range? Call and we'll confirm.
(626) 914-4000FAQs
Frequently Asked Questions
Straight answers about pricing, what to expect, and how we handle the job.
How do I know if my panel needs an upgrade?
Look at what you are asking it to do. If you're installing an EV charger, doing a renovation, blowing the main quite a bit, or still using fuses or 60-amp service, it's time. A quick load assessment will confirm.
How much does an electrical panel upgrade cost?
That depends on what amperage you're shooting for, the condition of your existing service, and the permit your city requires. If you want to go 100 to 200 amps, it is a bigger job than a straight swap. We'll assess first and give you a firm number before we start any work.
Do I need a permit for a panel upgrade?
Yes, and you want one. A permitted job means the work has been inspected and is legal. That protects you when you go to sell or insure the home. We do the permit and the inspection for you.
Can a panel upgrade support an EV charger?
That is one of the main reasons people call. We size the new service to include your charger plus everything else in the house so you won't trip breakers every time the car plugs in.
Want to increase capacity?
Call (626) 914-4000 and talk to Frank directly, or email frank@glendoraelectrician.com.
