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Langstaff & Sloan
Langstaff & Sloan

Electrician Mississauga

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Electrician Mississauga — Reliable, Certified & On Time

Electrical issues don’t wait, and neither should you. When your power flickers, renovations stall, or new EV charger installs are delayed, it’s time to call a professional electrician Mississauga residents and businesses trust.
 
At Langstaff & Sloan, we’ve been the go-to electrical contractors in Mississauga since 1991—serving homes, condos, and businesses with ESA-certified expertise, on-budget execution, and decades of proven performance. From Etobicoke to Oakville, we’re proud to power homes and businesses across Mississauga, ON and the Greater Toronto Area.

Why Choose a Certified Electrician Mississauga?

Licensed work isn’t a bonus—it’s a must. We assign a fully licensed electrician to every project. No shortcuts. No guesswork. Just precision wiring, panel work, lighting, and smart system integration designed for long-term reliability.
 
Our team follows the Ontario Electrical Safety Code and works closely with inspectors to keep your property safe and compliant.
 
✔️ ESA-certified & insured
✔️ Clean, clear workmanship
✔️ Local Mississauga ON experts
 
We don’t just complete jobs—we build trust. You’ll always know who’s showing up, what we’re doing, and how long it’ll take.

Residential Solutions from Top-Rated Mississauga Electricians

Looking for Mississauga electricians residential homeowners can count on? From full rewiring jobs to smart home upgrades, we take care of every detail—so you can focus on your home, not your wiring. Services include:
  • Electrical panel upgrades
  • Lighting installation and pot light retrofits
  • Aluminum wiring replacement
  • Surge protection and GFCI installs
  • Whole-home rewiring and renovations
  • Smart switches and EV charger setup

Need EV charging at home? Learn more about our EV charger installation services—tailored to your vehicle specs and garage layout.

Powering Businesses with a Trusted Commercial Electrician in Mississauga

Our team supports property managers, general contractors, and business owners across Mississauga, ON with fast, code-compliant service. Choose Langstaff & Sloan for:
 
  • Tenant fit-ups and commercial retrofits
  • Emergency lighting systems
  • Code corrections and ESA inspections
  • Retail and office lighting design
  • Panel and transformer upgrades

Explore our commercial electrical services for larger-scale project support in Mississauga and Toronto.

EV-Ready? Trust the Best Electricians in Mississauga for Charger Installations

Mississauga homeowners driving Teslas, Fords, or any EV brand need proper setup—not DIY solutions. We provide Level 2 EV charger installations with:
  • Accurate load calculations
  • Proper circuit protection
  • Permit handling and ESA inspection scheduling

 

Avoid overloaded breakers and warranty voids. Our residential electrician Mississauga team gets it done safely and up to code.

Get Electrical Services Mississauga Residents Rely On

With over 30 years of experience and deep roots in Mississauga, ON, Langstaff & Sloan is known as one of the best electricians in Mississauga. From high-rise condo buildings to family homes and retail builds, we’ve wired, powered, and protected every type of property across the city.
 
We also provide guidance on energy-efficient upgrades and smart controls—helping you lower utility bills and future-proof your investment.

Ready to Work With Certified Electrical Contractors Mississauga Trusts?

Call 647-492-8193 or book online to schedule your service. If you need an electrician in Mississauga that you can rely on—for residential, commercial, or EV charger needs—Langstaff & Sloan is your best call.

How Electrical Contractors in Toronto Can Help

At Langstaff & Sloan, we are well versed in electrical projects of all kinds. As licensed home electricians in Toronto, we’ve worked with homeowners on everything from green technology to adding exterior lighting to their backyard oasis. When it comes to commercial electrical work, we can help ensure that your workspaces are functioning efficiently and that you have the power you need to be as productive as possible.

As qualified local electricians in Toronto, here are some of the ways that Langstaff & Sloan can support your needs:

Commercial Services

  • Submetering.
  • New and retrofit lighting.
  • Standby generators.
  • Leasehold improvements.
  • Service calls.
  • Code compliance.

Residential Services

  • Emergency service calls.
  • Knob and tube rewiring.
  • Renovation wiring.
  • Electrical panel upgrades.
  • Whole-home assessments.
  • Aluminum rewiring.
  • Smart home wiring.
  • Basic repairs.

Frequently Asked Question

How long does knob and tube wiring last?

The common life expectancy of knob and tube wiring is 25 years, due to the rubberized cloth insulation used on the wires beginning to break down. While the wiring itself remains functional, the deterioration of insulation increases the risk of injury and damage that can cause more serious issues. As this type of wiring is an outdated option, dating back to the early to mid-1900s, the homes that still have it today are living on borrowed time.

How much current can knob and tube handle?

Knob and tube wiring can only exist in 15-amp ratings, which is a very low current on the general scale of wiring methods. Most modern devices require more power than 15-amps to function properly, which means that the devices may not work, or the wiring will be working much harder than it is designed to. Neither of these circumstances are ideal for your home, nor are they safe.

Is knob and tube wire safe?

There are several concerns surrounding knob and tube electrical, as it is outdated, which means its level of safety is questionable. The following are issues associated with this type of electrical wiring that homeowners should be aware of. As an ungrounded system, it increases the risk of injury; deterioration or cracking likely has happened over time, which can lead to an electrical fire; and newer wiring is often connected to knob and tube wiring, which creates dangerous conditions. Langstaff and Sloan Inc advises all homeowners to replace their knob and tube wiring. Having a licensed electrician upgrade your electrical will ensure your home is as safe as possible.

How do you know if a knob and tube is active?

While you can tell if a knob and tube wire is active by following the wires and seeing where they lead to, the safest way is to hire a professional. At Langstaff and Sloan, we send one of our licensed electricians to inspect your home’s wiring and see what condition it is in. Alternatively, if you have some technical knowledge of electricity, you may also use a voltage stick, otherwise known as a “tick buster.” By inserting the probes into the knob and tube fixture, you may test the alternating current. If the result is within 110 to 120 volts, the wire is live, so proceed with caution.

Is knob and tube a problem?

While many homes built between 1900 and 1945 have knob and tube wiring, there are several concerns associated with this wiring method that should not be ignored. It is an ungrounded system, which increases the likelihood of damage or injury. This is not only because it is old, meaning it may have deteriorated or cracked, but also because modern devices are not properly supported by it. If your home is suspected to have or has been confirmed to have knob and tube wiring, it is time to call Langstaff and Sloan Inc and book your wiring replacement.

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