Electrical Panels Repair, Upgrade or Install
The Command Center of Your Home
"Proudly Serving London since 2000"
Over 35+ 5-Star Reviews
Modern homes demand a lot of power. From EV chargers and hot tubs to high-efficiency heat pumps and smart appliances, your old electrical panel might be struggling to keep up. We provide licensed, ESA-certified electrical panel installations, upgrades, and emergency repairs to keep your home running safely.
Looking For Electrical Panel Services?
Need New Wires?
M&M Electricians are near you!
We serve London and the surronding areas.
Call for same -day or next-day service.
All quotes are free.
We'll pull all permits for you.
ESA Certified.
Licensed Electrical Contractor
What is an Electrical Panel?
Think of your electrical panel (often called a breaker panel, breaker box, or service panel) as the central nervous system of your home's electricity.
It receives the main power line from the local hydro utility and safely distributes that electricity into smaller paths (circuits) throughout your house to power your lights, outlets, and appliances. Inside the panel are safety switches called circuit breakers. If a circuit draws too much electricity, the breaker automatically flips "OFF" to cut the power, preventing your wires from overheating and catching fire.
Where is it Located and What Does it Look Like?
For most Ontario homes, your electrical panel is a gray metal box mounted on a wall in a utility area. You will typically find it in:
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An unfinished section of the basement
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A garage or workshop area
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A dedicated utility closet near the furnace or water heater
When you open the metal door of the panel, you will see rows of black plastic switches. These are your circuit breakers, each labeled with a number corresponding to a specific room or major appliance in your house (e.g., "Kitchen Outlets," "Dryer"). At the very top or bottom, you will see one large double-switch called the Main Breaker, which shuts off power to the entire house in an emergency.
⚠️ Note for Older Homes: If opening your panel reveals rows of round, glass screw-in fuses instead of black switches, you have an outdated fuse box. These are significantly past their operational lifespan and are increasingly difficult to insure in Ontario.
Common Problems That Require an Electrician
Electrical panel issues are serious safety hazards. If you notice any of these warning signs, it’s time to call in a licensed electrical contractor:
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Frequent Breaker Tripping: If turning on the microwave while the kettle is running constantly knocks out your power, your panel is overloaded.
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Flickering or Dimming Lights: If your lights dip when your AC, furnace, or clothes dryer kicks on, your system is struggling to handle the sudden draw.
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Hissing, Buzzing, or Crackling Sounds: A quiet hum is normal, but cracking or buzzing indicates a dangerous loose connection or electrical arcing.
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Rust or Corrosion: Moisture in basements can cause panels to rust, destroying the integrity of your breakers.
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Warm to the Touch or Burning Smells: If the panel door feels hot or smells like burning plastic, shut off power immediately and call us for emergency service.
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Outdated/Dangerous Brands: If your home features a Federal Pioneer (Stab-Lok) panel or an old fuse box, many Ontario insurance companies will refuse coverage until it is replaced due to known failure risks.
Electrical Panel Pricing Guide (Ontario 2026)
Site Unseen Estimates. Sometimes homes present costly challegnes from the way the home was constructed and this can directly impact the cost of your project. Here is a general pricing guide.
Isolated Breaker/Panel Repair
$300 – $800 - Fixing a single faulty switch or minor wiring issue.
Same-Amperage Replacement
$1,800 – $3,000 - Replacing an aging or damaged panel without increasing overall capacity.
Fuse Box to Breaker Conversion
$2,200 – $4,000 - Upgrading an old fuse system to modern breakers for home safety & insurance compliance.
100A to 200A Service Upgrade
$2,500 – $4,500 - The standard modern upgrade. Necessary for adding EV Chargers, hot tubs, heat pumps, or legal basement apartments.
Heavy-Duty Service Upgrade (to 400A)
$4,500 – $8,000+ - Large luxury modern homes with multiple high-draw electric systems.
What’s Included in Your Project?
When we handle your panel upgrade, we take care of the entire logistical headache:
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ESA Permitting: We file the mandatory Ontario Electrical Safety Authority paperwork.
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Utility Coordination: We coordinate the disconnect and reconnect times directly with your local hydro utility company.
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Hardware & Labour: Installation of a premium, code-compliant combination panel and brand-new breakers.
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Grounding & Bonding: Bringing your home’s main water meter and grounding systems up to current Ontario Electrical Code.
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Final Certification: Passing the ESA inspector walkthrough to deliver your official Certificate of Inspection.
