Electrical Panel Upgrades
in Glendora, CA
More power for today’s home, from the licensed electrician who does the work himself. No sales reps and no surprise add-ons. Just a safe, code-compliant panel installed right the first time.
CA License #1005721
Licensed, Bonded & Insured
30+ Years
In the Electrical Trade
1-Year Guarantee
On All Workmanship
Your Home Has Outgrown Its Electrical Panel
Drive through Glendora, San Dimas, or La Verne, and you’ll see plenty of ranch homes built in the 1950s and ’60s. Many still run on the 60- or 100-amp panel they were built with. Those panels were sized for a fridge, a TV, and a few lamps. They were never meant for central air running through a 105° September, an EV charging in the garage, an induction range, and a home office all at once.
When demand outpaces your panel, you get tripped breakers, dimming lights, and wiring that runs hotter than it should. An electrical panel upgrade fixes that at the source. It gives your home the capacity it needs now, plus room for the EV charger, heat pump, or ADU you may add later.
At Pro Electric Services, owner and licensed electrician Jack Yaacoubian handles every panel upgrade personally. From the first assessment to the final city inspection, you work with one person who knows your home and stands behind the job.
8 Signs It’s Time to Upgrade Your Electrical Panel
Not sure if you need a new panel? These are the warning signs Jack sees most often in San Gabriel Valley homes.
Breakers Trip Often
Especially when the AC, microwave, or dryer kicks on.
Lights Dim or Flicker
Noticeable when a large appliance starts up.
You Have 60- or 100-Amp Service
Most modern homes need 200 amps.
Federal Pacific, Zinsco or Challenger Panel
These brands are linked to breakers that fail to trip, and many insurers flag them.
You Still Have a Fuse Box
Fuses belong to an era of far smaller electrical loads.
The Panel Is Warm, Buzzing or Smells Hot
Treat this as an emergency and call right away.
Rust, Scorch Marks or Corrosion
Visible damage on the panel or breakers.
You’re Adding a Big Load
An EV charger, a heat pump, a spa, or an ADU.
Smell Burning or See Sparks at Your Panel?
Don’t wait. Pro Electric offers 24/7 emergency service. Call 818-355-3488.
Panel Upgrade Services We Offer
100 to 200-Amp Service Upgrades
The most common upgrade we do. A new main panel, meter base, and service connection sized for modern living.
Main Panel Replacement
Amperage fine but the panel old, damaged, or recalled? We swap it for a new, UL-listed panel from a trusted brand.
Federal Pacific & Zinsco Replacement
We remove high-risk panels and replace them with modern breakers that trip when they are supposed to. Real protection, and fewer insurance headaches.
Fuse Box to Breaker Panel Conversion
Retire the old fuses for good and get the convenience and safety of a modern breaker panel.
Subpanel Installation
Add circuits for a garage, workshop, ADU, or backyard spa without overloading your main panel.
EV-Ready & Future-Ready Upgrades
Planning a Level 2 charger, a heat pump, or an ADU? We size your panel for today and for what comes next.
Commercial Panel Upgrades
We also upgrade service for small businesses, offices, and retail spaces across the area.
How Your Panel Upgrade Works
Free On-Site Assessment
Jack inspects your current panel, service size, and wiring, and runs a load calculation for your home.
Clear, Written Quote
One honest price and a plain explanation of what is needed and why. No pressure and no upsell.
Permits & Utility Scheduling
We pull the city permit and coordinate the power shutoff and reconnection with SCE, Pasadena Water & Power, or Azusa Light & Water.
Installation Day
Most residential upgrades are done in one day, with power typically off for 6–8 hours. We label every circuit clearly.
City Inspection
We meet the inspector and make sure everything passes.
Power Restored & Walkthrough
Jack shows you your new panel and answers your questions. Your 1-year workmanship guarantee starts that day.
How Much Does a Panel Upgrade Cost in Glendora?
Every home is different, so we quote after we’ve seen yours. Your price depends on:
- The amperage you’re moving to (for example, 100A to 200A)
- Whether the meter base and service entrance also need replacing
- Overhead vs. underground service from the utility
- How far the panel is moving, if it’s being relocated
- Code corrections needed, such as grounding, bonding, or AFCI/GFCI protection
- City permit fees and utility requirements
Permits Done Right, Every Time
Every panel upgrade in California needs a permit and a city inspection. Some contractors skip this to save a few dollars. It can come back to haunt you when you sell your home or file an insurance claim. We handle all of the paperwork, so you don’t have to.
Ask About Rebates
Some California electrification programs have offered incentives for panel upgrades tied to heat pumps or EV chargers. Availability changes often, so ask Jack what’s current when you book your assessment.
Why Glendora Homeowners Trust Pro Electric
The Owner Does the Work
Big outfits send a salesperson, then a crew you’ve never met. With us, Jack quotes the job, does the job, and answers the phone.
30+ Years in the Trade
He’s worked on everything from 1950s knob-and-tube to the latest smart panels.
Honest, Consistent Pricing
Everyone gets the same fair price. We only recommend what your home actually needs.
Licensed, Bonded & Insured
CA Contractor License #1005721.
1-Year Workmanship Guarantee
Included on every job we complete.
Local & Family-Owned
Based in Glendora since 2016, serving neighbors across the San Gabriel Valley.
24/7 Emergency Service
When your panel can’t wait, calls ring to Jack directly—any hour, any day. Call 818-355-3488.
Panel Upgrades Across the San Gabriel Valley
Pro Electric Services is based in Glendora and upgrades panels within about 15 miles, including:
Glendora
From the foothill neighborhoods to the older homes near the Village
San Dimas
Mid-century homes ready for EVs and modern appliance loads
La Verne
Older homes near Old Town and newer builds alike
Azusa
Homes on Azusa Light & Water service
Pasadena
Craftsman and older homes on Pasadena Water & Power service
Outside these cities? Call anyway—Jack travels farther for the right project.
Electrical Panel Upgrade FAQs
How long does a panel upgrade take?
Most residential upgrades take one day, with power off for about 6–8 hours. Permits and utility scheduling usually add a week or two before install day.
Do I need a 200-amp panel?
If you have central AC, an electric range or dryer, or plan to add an EV charger or a heat pump, 200 amps is usually the right size. A load calculation tells us for sure.
Can I charge an EV on a 100-amp panel?
Sometimes, with load management. But many older homes need an upgrade first. We’ll check your load and give you an honest answer.
Is my Federal Pacific or Zinsco panel dangerous?
These panels are known for breakers that may not trip during an overload. We recommend replacing them, and many insurance companies agree.
Do you pull permits?
Yes, on every panel upgrade. We also schedule and attend the city inspection.
Will I need to be home during the work?
Someone should be there at the start and for the final walkthrough. Most homeowners plan around a day without power.
Is the work guaranteed?
Yes. Every job comes with our 1-year workmanship guarantee.
Ready for a Panel That Keeps Up With Your Home?
Stop resetting breakers and start planning the upgrades you actually want. Book a free panel assessment with Jack. You’ll get a straight answer, a fair price, and work that’s done right.
Our Other Services
EV Charger Installation
Level 2 charging sized to your panel and permitted properly.
Electrical Repairs
Diagnostics and repairs for outlets, breakers and code violations.
Residential Electrical
Lighting, rewiring and general electrical work for your home.