How Many Amps Does a House Typically Need?

Electrical Q&A

Most modern homes are served by either 100 or 200 amp panels, with 200 amp increasingly becoming the standard recommendation for new construction and major upgrades. The right number for your specific home depends on its size, appliances, and heating system, not a single fixed rule. Here is how to think about it, from the licensed electricians at EZSMART, serving Toronto and the GTA.

General Guidelines by Home Type

Small homes or condos with gas heating: 100 amp is often sufficient
Mid-sized family homes: 150 to 200 amp is commonly recommended for comfortable headroom
Larger homes, homes with electric heating, or homes with an EV charger: 200 amp is typically recommended
Very large homes or those with multiple major electrical loads: May require above 200 amp in some cases

These are general guidelines, not a substitute for an actual load calculation performed by a licensed electrician.

What Actually Drives the Number

Square footage and number of major appliances
Whether heating and hot water are electric or gas
Presence or plans for an EV charger, hot tub, or pool
Whether you are planning renovations or additions that will add electrical load

Why This Matters Beyond Just Comfort

An undersized panel does not just risk inconvenience, it can lead to an overloaded system straining under regular use, more frequent breaker trips, and in some cases, safety concerns from a panel working beyond its intended capacity. On the other end, deliberately oversizing without a real need adds unnecessary cost. A proper load calculation, performed by a licensed electrician, is the most reliable way to land on the right number for your specific home.

Frequently Asked Questions

Is 100 amp panel considered outdated now?
Not necessarily outdated, but many electricians now recommend at least 150 to 200 amp for new work to provide headroom for modern and future electrical needs.

How do I find out what amperage my current panel is?
The amperage is usually printed on the main breaker inside the panel, and a licensed electrician can confirm this along with its overall condition.

Does a bigger home always need more amps?
Generally yes, though it depends more specifically on appliance load and heating type than square footage alone.

Should I upgrade my amperage before or after a major renovation?
It is usually more efficient to address panel capacity before a major renovation, since new circuits and appliances added during the project can be planned around the correct capacity from the start.

Not sure how many amps your home actually needs? EZSMART provides licensed load calculations across Toronto and the GTA. Call 416-838-9006, and see what our customers say on our Google reviews page.

      EXCELLENT  
   Based on 32 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Petru Petru 
 
 
 
 Trustindex verifies that the original source of the review is Google. I upgraded electrical pannel to 200 Amp. And Amir  did a good job and fast. I recomend.
  
 
      Posted on Google  
   
   Ronald D 
 
 
 
 Trustindex verifies that the original source of the review is Google. "I cannot recommend Amir enough. We hired him to upgrade our electrical panel to 200-amps. From the moment he arrived, he was professional, punctual, and highly communicative. Amir took the time to explain the process, answered all my questions. If you need an electrician who is honest, skilled, and respects your home, look no further. We will definitely be using Amir for all of our future electrical needs.
  
 
      Posted on Google  
   
   mycal 
 
 
 
 Trustindex verifies that the original source of the review is Google. I Highly recommend Amir .  Him and His work is exceptional and his quote was far better than the other companies that quoted for upgrading my 100 amp panel to 200 amps. 5 stars is not enough.
  
 
      Posted on Google  
   
   Bee Honest 
 
 
 
 Trustindex verifies that the original source of the review is Google. Not recommend!!! Overall the work felt very Jimmy Rigged and rushed like Mickey Mouse job rather them professional electrical work. The lack of preparation, lack of proper tools and poor communication made the whole experience frustrating Never again!! Homeowners be cautious!!
  
 
      Posted on Google  
   
   tommy dubeau 
 
 
 
 Trustindex verifies that the original source of the review is Google. Shawn and Amier provided an excellent service, both where extremely helpful in assisting with extra services that was required for my repairs and upgrade, any one living in the Vaughan area should consider using them for any electrical work to there home or property.
  
 
      Posted on Google  
   
   Muhammad Ahsan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Awesome jobe done  by Amir
  
 
      Posted on Google  
   
   Mehran Jabbari 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding Electrician – Highly Recommend Amir at EZSMART CORPORATION After interviewing eleven electricians, I chose Amir from EZSMART CORPORATION to upgrade my home to 200A service and install an EV charger—and I couldn’t be happier with that decision. From our first conversation, Amir made me feel confident and at ease. He was honest, transparent, and never tried to upsell unnecessary work. Instead, he offered practical advice and even recommended the best EV charger for my vehicle. Once the job began, a few unexpected issues came up—none of which were his fault or included in the original estimate. Still, Amir resolved them without charging extra. That level of integrity is rare. Amir’s professionalism, fairness, and attention to detail truly set him apart. If you need electrical work done, I highly recommend Amir and EZSMART CORPORATION.
  
 
      Posted on Google  
   
   Kwok Keung lewes Kam 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nice and professional, strongly recommended
  
 
      Posted on Google  
   
   Toktam Jalalian 
 
 
 
 Trustindex verifies that the original source of the review is Google. "Fantastic work! EZSMART CO was professional, efficient, and very knowledgeable. They handled everything with care and made sure everything was up to code. Highly recommended!"
  
 
      Posted on Google  
   
   Avesh Raina 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional and a clean job. Recommend highly. Amir installed an EV outlet for me.