CAA Habitation recommendedHome › Electrical panel › Terrebonne
Electrical panel replacement in Terrebonne
About five hours without power; the price is in the written quote, free of charge. We handle the Hydro-Québec and municipal steps.
In Terrebonne, replacing a 200 A electrical panel takes one day and leaves you without power for about 5 hours; the price is in the written quote, free of charge. Only a master electrician who is a CMEQ member can do the work: the law forbids the owner from doing it, even at home.
Jump to a section9
Why are so many panels running out of steam in Terrebonne?
Terrebonne kept growing for fifty years, and its 45,250 private dwellings tell the story. The 2021 census counts 9,625 dwellings built between 1961 and 1980, 9,235 between 1981 and 1990 and 7,005 between 1991 and 2000. Barely 2,255 date from 1960 or earlier.
That creates two very different realities in the same city. In the areas from the 1960s to 1990s, we find 100 amp panels that are perfectly sound but full to the brim. In the newer developments, the panel is already 200 amps — except a heat pump, an EV charger and sometimes a spa have been added, and the real capacity is no longer the same. Installing an EV charger in Terrebonne
In both cases, it isn’t a breakdown that prompts the call. It’s a project.
Aluminum wiring in Terrebonne
We come across a lot of aluminum wiring in Terrebonne. We certify and correct it, in addition to replacing panels. Our guide on aluminum wiring explains what it changes for your house.
Lachenaie, La Plaine or Terrebonne: it has been one city since 2001.
Which amperage for which house?
| Panel | What it supports | The sign it’s no longer enough |
|---|---|---|
| 60 A | A house built before 1960, oil or gas heating, no large appliances | No free space left, and an insurer asking questions at renewal |
| 100 A | A house from the 1960s to 1990s still as it was built | A breaker that trips when two appliances start together, or no room for a charger |
| 200 A | Today’s standard: electric heating, heat pump, EV charger | — |
| 320 to 400 A | Large house, or charger + heat pump + spa + workshop | — |
Fuses, breakers, and the panels to watch
In a house in Terrebonne, four situations come up again and again.
| What we see | What it means | What we do |
|---|---|---|
| 100 A panel with no free space | The most common case here. Nothing is broken, but nothing more can be added. | Upgrade to 200 A, often without touching the existing wiring. |
| Stacked double breakers | Two circuits in the space of one, to save room. A sign the panel is full. | We check whether the panel accepts them, then we calculate the real load. |
| Federal Pioneer Stab-Lok | Common brand between 1970 and 1990. Breaker reliability disputed for decades. | Have it looked at before plugging anything else into it. |
| A breaker that trips often | The breaker isn’t the problem: it’s doing its job. The load is too high. | Load calculation, then an upgrade if it’s justified. |
How does it go, in practice?
One working day, including about five hours without power. That’s the real answer to the question everyone asks first.
We file the request with Hydro-Québec, which comes to disconnect the service. The old panel comes out, the new one goes in, every circuit is identified again one by one — that’s the longest part, and the one that will serve you for twenty years. Hydro-Québec reconnects, and the installation is tested before we leave.
In a house from the 1980s or 1990s, the wiring is almost always in good condition: we replace the panel, not the house. That’s what helps keep the bill down.
What does it cost in Terrebonne?
The price depends on your installation, for example when the service entrance is redone at the same time: you get it in the written quote, free of charge. The real price depends on the target amperage, the condition of the service entrance and the mast, and the number of circuits to redo. A sub panel costs considerably less.
A photo of your open panel is often enough to tell you the next steps, without a visit.
Do you need a permit in Terrebonne?
The City of Terrebonne requires a declaration of work for interior renovation of a dwelling, but it doesn’t list replacing an electrical panel anywhere — neither on its website nor in its bylaw on permits and certificates.
We won’t leave you guessing: we check with the City before we start, and we handle the forms, for the municipality as well as for Hydro-Québec. You have nothing to fill out.
Who is allowed to replace a panel in Québec?
The question comes up all the time, and the answer surprises people: it isn’t a matter of skill, it’s a matter of law.
“No one may perform electrical work of any kind, in their residence or elsewhere for others, unless they are an electrical contractor.” (translated from French)
“A person who contravenes the Master Electricians Act and the Building Act is liable to a fine of $5,000 to $200,888.” (translated from French)
Corporation des maîtres électriciens du Québec
In other words: even at home, even if you know how. STM Électrique inc. is a CMEQ member and holds RBQ licence 5815-0137-01.
Frequently asked questions
Can I replace my panel myself?
No. The Master Electricians Act forbids it, even in your own home, and the fine ranges from $5,000 to $200,888.
Do I need to notify Hydro-Québec?
Yes, and the electrician does it. The service request and the declaration of work go through Hydro-Québec’s professional portal, which only master electricians can access.
How long will I be without power?
About five hours over one working day. The rest goes to the connection and the testing.
My house is recent and I already have 200 amps. Is that enough?
Often yes, but not always. An EV charger, a heat pump and a spa added over the years change the calculation. We do the real load calculation before proposing anything.
My 100 amp panel is full. Do I really have to go to 200?
Not always. Sometimes a sub panel is enough and costs much less. If you’re planning an EV charger, though, 200 amps is almost always the right answer.
How much does a panel replacement cost in Terrebonne?
The price depends on your installation, for example when the service entrance is redone at the same time: you get it in the written quote, free of charge. On the City side, Terrebonne requires a declaration of work for interior renovation of a dwelling, and we check with it before we start.
What we install. To replace a panel, we most often install a Siemens, a brand Adam Chirola considers reliable and high quality. Its breakers are easy to find across Québec: the day you need to add one for an EV charger, or replace one in ten years, it takes one visit, not a special order.
Unsure about your panel in Terrebonne? Send us a photo and we’ll reply with the next steps.
Get a quoteor call 438 542-7304To go further
- Replacing a panel: cost and how the day goes
- Is your 100 amp service still enough?
- 200 amp panel: what you need to know
Panel replacement elsewhere
- Beloeil
- Sainte-Julie
- Longueuil
- Laval
- Brossard
- Châteauguay
- Saint-Hubert
- Dollard-des-Ormeaux
- Montréal
- South Shore
- Gatineau
Understanding your panel