Electrical contractor · Mercier
Residential and commercial electrician in Montérégie
New construction and renovation, 100 to 400 A panels, EV chargers, home automation and solar panels. From the plans of a new home to the last light fixture, in Mercier, Châteauguay and across the South Shore.
- RBQLicence 5809-9961-01
- CMEQMaster electricians
- 24 hFree quote
- 5.0 ★63 Google reviews
Electrical
What we wire
The trade, from the plans of a new home to the hot tub hookup. Each service has its own page, answers to the questions we hear most, and its own quote form.
New construction and renovation
New homes, additions and renovations, planned from the blueprints with your contractor.
View service 100 to 400 APanels and electrical service
From 100 A up to 400 A: panel replacement, service entrance repair, temporary construction power.
View service 20 AHeating and heated floors
Flextherm heated floors, baseboard heaters, convectors and smart thermostats.
View service 50 AHot tubs and pools
Hot tub, pool, heat pump and outdoor lighting hookups, to Code.
View service 600 VCommercial
Shops, restaurants and offices: fit-outs, added circuits, lighting and code upgrades.
Request a quoteAre you a general contractor or builder? We work with you from the plans, from rough-in to finishing. See new construction.
Energy and technology
The home, wired for tomorrow
EV chargers, home automation, solar: the fastest-moving part of the trade, and the one Simon follows most closely. Two programs now cover a good share of the bill.
EV chargers
Level 2, at home or at work, with up to $600 in government assistance on the charger.
View service Wi-FiHome automation
Lutron RadioRA 3 lighting, Sinopé thermostats, scenes, cameras and energy management.
View service kWGrant $1,000/kWSolar panels
Solar self-generation with $1,000 per kW from Hydro-Québec, connection and paperwork included.
View service- up to $600Écorecharge, Government of Québec (conditions apply)
- $1,000/kWLogisVert, Hydro-Québec
- Amounts verified on November 14, 2026. We explain the conditions in your quote.
Our projects
Work done right
Customer reviews
What our customers say
Simon was attentive, responsive and particularly competent. He took the time to answer all our questions, from choosing the charger to installing the app on our phones. The job was carried out in a clean and organized way.
Simon came to install outlets in my new pizzeria in Châteauguay and I really liked his professionalism. He is patient and takes the time to explain. And very competitive pricing.
Excellent service with a super quick turnaround. Punctual technicians who did a very clean job!
He is very polite and works hard. Very honest about his prices compared to other electricians.
How it works
From first call to power on
You describe the job
By phone or with the form. Attach photos of the panel, the area or the plans: they speed everything up.
You receive your quote
Free, usually within one business day, with any grants that apply. For a larger project, we come and see first.
We handle the paperwork
Declaration of work and, when needed, coordination with Hydro-Québec and your contractor.
Clean, careful work
Punctual technicians, a clean job site and clear explanations at the end.
About
A local company, based in Saint-Étienne-de-Beauharnois
Signeault Électrique inc. is led by Simon, with a team of technicians. The company does new construction, renovations and electrical repairs for homeowners, builders and businesses in Montréal, Laval and across the South Shore. And it keeps a close eye on everything that is changing in the trade: EV chargers, home automation, solar. What our customers remember, review after review: they listen, the prices are honest, and the job site is left clean.
- RBQ licence 5809-9961-01, verifiable in the Régie du bâtiment registry
- Member of the Corporation des maîtres électriciens du Québec
- Flexpert installer for Flextherm heated floors
- Installer of Lutron RadioRA 3 systems and Sinopé devices
Service area
Montréal, Laval and the entire South Shore
Based in Saint-Étienne-de-Beauharnois, we work from Vaudreuil-Dorion to Saint-Jean-sur-Richelieu and from Laval to Beloeil: Montréal, Laval and the entire South Shore. Don't see your town on the list? Call us anyway.
- Saint-Étienne-de-Beauharnois
- Montréal and Laval
- The entire South Shore
- Vaudreuil and Île-Perrot
See all 31 cities
- Saint-Étienne-de-Beauharnois
- Beauharnois
- Salaberry-de-Valleyfield
- Châteauguay
- Mercier
- Léry
- Sainte-Martine
- Saint-Isidore
- Saint-Rémi
- Napierville
- Sainte-Catherine
- Saint-Constant
- Delson
- Candiac
- La Prairie
- Brossard
- Longueuil
- Boucherville
- Varennes
- Saint-Bruno
- Sainte-Julie
- Beloeil
- Mont-Saint-Hilaire
- Chambly
- Saint-Jean-sur-Richelieu
- Marieville
- Vaudreuil-Dorion
- L'Île-Perrot
- Montréal
- Laval
- Terrebonne
Frequently asked questions
Before you call
Do you do new construction?
Yes. We plan the electrical for a new home or addition from the blueprints, with you and your general contractor, then carry it out from the service entrance to the last light fixture.
Do you work on residential and commercial projects?
Yes, both. Houses, condos and cottages on one side; shops, offices and restaurants on the other: new construction, renovations, repairs and code upgrades.
Are you licensed by the RBQ?
Yes. Signeault Électrique inc. holds RBQ licence 5809-9961-01 and is a member of the Corporation des maîtres électriciens du Québec (CMEQ). You can check the licence yourself in the Régie du bâtiment du Québec registry.
Are there grants for an EV charger or solar panels?
Yes, two. The Québec government offers up to $600, conditions apply, on a home EV charger (Écorecharge), and Hydro-Québec pays $1,000 per kilowatt of solar panels installed, up to 40% of the cost (LogisVert). We explain the conditions in your quote.
Is the quote free?
Yes. Describe the job by phone or with the form, with photos if possible, and you will receive a free quote, usually within one business day. For a larger project, we come and take a look first.
Which areas do you serve?
We are based in Saint-Étienne-de-Beauharnois and work in Montréal, Laval and across the South Shore, from Vaudreuil-Dorion and Salaberry-de-Valleyfield to Saint-Jean-sur-Richelieu, Chambly and Beloeil, including Châteauguay, Mercier, Beauharnois, Sainte-Martine, Saint-Rémi, La Prairie, Candiac, Brossard, Longueuil and Boucherville.
Do you handle the declaration of work?
Yes. In Québec, electrical work must be declared by the electrical contractor. We take care of it, as well as coordinating with Hydro-Québec when the electrical service is involved.
A project or an electrical problem?
Describe it in a few lines, with photos. Free quote, usually within one business day.