Powertec Electric Inc.

Premium Electrician Services for Residential, Commercial, and Industrial Sectors

We Are Knob And Tube Removal Experts

Knob and Tube wiring was the electrical standard during the late nineteenth century and the first half of the twentieth century. The reason for this was the relatively low cost of wiring a home using knob and tube over running steel jacketed conduit wiring. The concept was very simple. It consisted of four parts. The single insulated copper conductor (the copper wire), secured among the length of their run on nailed down, insulating porcelain knobs.

When the wire had to run through studs or joists, and insulating ceramic tube kept the hot wire away from the wood as well as protected the wire from possible damage if the house shifted. When the wires were pulled into a wall or enter a wiring device such as a lamp or switch the wire was further protected with a loom which is a flexible insulating sleeve. The earliest looms would be an asphalt saturated cotton cloth which was then later replaced with rubber.

It can be difficult to determine if you have knob and tube wiring in your home as they can be connected to either a fuse panel or circuit breaker. One of the services we offer at Powertec Electric Ltd is to provide homeowners with electrical inspections for this tube wiring. This is particularly useful if you are looking to purchase an older home in Winnipeg. As will be discussed further, many insurance companies will not insure a home with this type of tube wiring, forcing you to make expensive repairs. It is better to know this before you make an offer to buy.

There are some tell tale signs you have knob and tube wiring in your home. If you have an unfinished basement, look up into your floor joists. If you see your wire runs supported by ceramic knobs and running through the tubes in your joists. You have knob and tube wiring. You can also go up in your attic and look for the same setup if you have a finished basement. Another way to determine if you have it is to look inside your switch boxes. Take off the protective outside plate and look inside. If you see a loom wrapped around the wire coming in or if there is no ground wire, you have tube wiring in your home. It is the increase fire risk that has insurance companies cancelling home owner policies.

Why You Should Replace Knob And Tube Wiring

There are a number of reasons why you as a homeowner, should consider having a certified electrician remove your knob and tube wiring from your home. The first and most obvious reason is age. These systems are seventy years old or older. After decades of running electricity through your home, the wires can become very brittle, possibly breaking, interrupting power. Another concerned is that the solders that connected the wires together can also start to come loose, interrupting power as well. The worse case scenario is an electrical fire starting behind the walls of your home as a result of arcing.

Energy efficiency is yet another reason to replace it. When current runs through your wires, it generates heat. That heat is dissipated into the dead air space between your walls and above your ceiling. That means your walls are most likely uninsulated, costing you hundreds of dollars annually in lost heating and cooling dollars as a result. Modern wiring still generates heat, but it is dissipated through the three wires running through the insulated cable. So by rewiring your home, and moving away from tube wiring, you can now more effectively insulate your walls and attic. This will not only make your home more energy efficient, but also more comfortable during the year.

One thing that really annoys our customers that live in older homes is the lack of outlets. Let’s face it, we have more electrical appliances than was ever imagined seventy years ago. Now we have multiple televisions, computers, tablets, cell phone chargers, pvr players, stereos, cable tv boxes, microwaves, toasters, coffee makers, and so much, much more. Let’s face it, your original knob and tube wiring was not meant to take such a power demand. Also because you have a shortage of outlets, you find yourself running extension cords and power bars to satisfy the electrical demand of today’s modern living. By having Powertec Electric come in and remove your knob and tube wiring and then rewire your home, we can increase your service as well as install more outlets and switches in you home. This way your home is safer as you are no longer overloading your electrical system and running extension cords all over the place.

Finally, the biggest reason to remove knob and tube wiring are Manitoba’s insurance companies. Many are simply refusing to insure homes with knob and tube wiring, as they believe your home poses a higher risk to fire loss. Many times an insurance company will give you a very tight deadline to comply or your insurance will be cancelled. As a homeowner it puts you in a bad position as almost all mortgages require insurance to be placed on the property. So it is better to replace the knob and tube wiring in your home before you need to. If nothing else, when it comes time to sell your home, you will most likely be able to command a higher price as a result of having updated wiring. It also eliminates updated wiring as a condition in the offer to purchase your home.

Now that you know what knob and tube wiring is, and why you should have it replaced, call Powertec Electric now at 204-896-3446 to get started.  we have done so many knob and tube removal jobs that we are now specialize in this area of electrical work. That means we can get it done, quickly and efficiently, saving you money. We even made it easy and affordable to rewire your home with financing available through Crelogix. With easy affordable monthly payments, plus a higher resale value for your safer and insurable home.

Time Nielson
Tim Neilson
8 reviews - 61 photos

Excellent work, good pricing, punctual and firm quote. They replaced all of our knob and tube and upgraded our panel to 200 AMP. We were 100% pleased with their work. They made small clean holes and always cleaned up after themselves. This is a project that we had put off for 17 years and we feel that Powertec was the right people to do the job. We highly recommend them.

Chris Tokaruk
Chris Tokaruk
7 reviews

We shopped around a little before choosing Powertec to replace the knob & tube wiring in our house. They were very competitive on price, showed up when they said they would, were courteous and professional, and tidied up after themselves at the end of the day. Most importantly, one of the owners was here regularly to supervise and help complete the job. I definitely recommend them.

Cindy Sorokowski
Cindy Sorokowski
20 reviews

You will not be disappointed when you hire Powertec, The quote they gave was exactly what we were charged after all knob and tube was removed. No surprises!! The electricians we professional, worked well around family and pets in the home and tidied up as they went. Definitely will hire them for any future work and highly recommend them to others.

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Powertec Electric Inc.

Phone: (204) 896-3446
Email: [email protected]


1433 Erin St
Winnipeg, MB
R3E 2S9, Canada