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Radiant floor heating installation

We install electric radiant floor heating in bathrooms, basements and additions: cable or membrane, floor sensor, thermostat and a dedicated circuit. Heated floors go in before the floor finish, and three decisions get made while the floor is still open.

Régie du bâtiment du Québec
RBQ licence
5855-0849-01
Corporation des maîtres électriciens du Québec
CMEQ member
17468
Electric radiant floor heating

What gets decided before the slab is poured

A heating cable is either buried in concrete or laid under the covering. What surrounds it decides its output as much as its wattage does. We install the cable, the sensor and the dedicated circuit, and we tell you what to plan for before the flooring installer shows up.

  • We choose the cable and the heated area with you
  • We check your panel and add the dedicated circuit
  • We lay the cable and the sensor before the slab is poured
  • We connect the thermostat and test each zone
Heating cable fastened to the floor before the covering goes down

How it works

From the subfloor to commissioning

  1. You tell us which room

    The approximate area, the type of floor you have in mind and the deadline for the finish work.

  2. We assess on site

    The capacity of the electrical service, the room left in the panel, the state of the subfloor and what the flooring installer has planned.

  3. We lay the cable and the sensor

    Spacing calculated for the area and the covering you chose. The sensor goes in a conduit, so it can be replaced one day without breaking the floor.

  4. We connect and commission

    Dedicated circuit, thermostat programmed, tested with you. One year warranty, and we answer after the work is done.

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Maître électricien de VGI devant un panneau électrique, prêt à évaluer un projet
Assessment

What we assess at your place

Four things decide the project, and the one with the heaviest consequences plays out under the floor, before it closes back up.

  • The capacity left in your electrical service

    Radiant floor heating is a continuous load. On a service that is already loaded, you need to know before the material is ordered. That is sometimes what leads to a panel upgrade.

  • The insulation under the slab

    Without insulation, a good part of the heat goes down into the ground. It is the most irreversible decision of the project.

  • The covering you plan to use

    Ceramic and stone conduct well. Engineered wood and vinyl have temperature limits set by their manufacturer, and those limits change the cable spacing.

  • The route back to the panel

    A dedicated circuit has to get there. The distance and the walls to cross decide the time.

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Électricien qui mesure la capacité d’un panneau électrique avant des travaux
The brands

What we install, and why

Two Quebec manufacturers. After sales service is here, which changes everything the day a part has to be replaced.

  • Stelpro

    A Quebec manufacturer. Cables, membranes and thermostats, from the start of the build to the end.

    • Full range, from the cable to the thermostat
    • Parts available locally
    • Technical documentation in French
  • Another Quebec manufacturer, same logic. We choose on the configuration and on availability, never on an exclusivity agreement.

    • Cables, membranes and thermostats
    • Chosen on the configuration, not on an agreement
The budget

What makes the price move

The area first, then four things that count just as much.

A circuit pulled across three floors is not a basement circuit. The distance and the walls to cross decide the time on site.

Radiant floor heating is a continuous load. If the electrical service has to be upgraded first, the project changes scale and becomes two jobs instead of one.

It decides the cable spacing, so the length to lay. Ceramic and engineered wood do not call for the same build.

Each zone has its thermostat and sometimes its own circuit. Heating the bathroom in the morning without heating the basement gets decided before the install.

Getting to the panel

We do not post an amount on this page. The estimator gives a range in a few questions, and we quote for real once we have seen the site.

Three ways to build heated floors, only one suits you

The build gets chosen on whether the floor is new or existing. The third one is not electrical, and we do not do it.

The cable gets fastened to the rebar before the pour. The slab stores the heat and gives it back slowly. That is the build with the most inertia, and it is reserved for a new slab or an addition.

Goes over an existing floor, under the ceramic or the vinyl. Heats up faster, holds it for less time. That is what gets done in a bathroom renovation.

A network of tubes fed by a boiler. It is not electrical and we do not install it. If that is what you need, we will tell you rather than sell you something else.

Heating cable fastened to rebar before the concrete pour
The installation

What the installation includes

The list to compare from one quote to the next. Two very different prices almost always hide two different lists.

A dedicated breaker, sized for a load that draws continuously for hours. Nothing else connects to it.

Spacing gets calculated on the area and on the covering you chose, not on a general rule. It is what decides the length to lay and the heat you will feel.

It goes in a conduit and not straight into the cement. A sensor that fails can then be replaced without breaking the floor, which happens more often than people think.

Mounted, wired and programmed on your schedule, not left on the factory settings. One zone per thermostat, and we show you how to change it.

One year on parts and labour. The invoice carries our licence numbers, the model and the serial number, and the cable layout plan stays with you.

We do not lay the floor covering and we do not do the finish work. The cable, the sensor, the circuit and the thermostat are ours; the tile setter picks up after us, and we work around his schedule.

Dedicated breaker installed in a residential electrical panel
Electrician laying a heating cable in a bathroom under renovation
5,015 avis
Google
2,000+

Projects over a career

Residential, light commercial and agricultural, from Montreal's Southwest out to Salaberry-de-Valleyfield.

10 years

In the trade, about 180 projects a year

1 year

Warranty on parts and labour

5.0 / 5

15 Google reviews, none below five stars

How we work

We come in before the concrete, not after

Radiant floor heating that was planned badly does not get repaired, it gets broken open again.

It is the one service where a visit that comes too late really costs. We would rather be called while the subfloor is still open, even if the finish work only starts much later.

What people say about us
  • Charles Tremblay-RoyGoogle review★★★★★

    « Service impeccable ! L'électricien a été ponctuel, professionnel et a fait un travail de grande qualité. Tout fonctionne parfaitement. Je recommande sans hésitation ! »

  • Isabelle GervaisGoogle review★★★★★

    « J'ai fait affaire avec cette entreprise quelques fois et je recommande fortement. Service super professionnel, et le travail est impeccable. »

  • Etienne Gauvreau-HurtubiseGoogle review★★★★★

    « Véritable allié stratégique pour nos projets d'électricité, Marc-André est efficace, courtois et rapide. Nous le recommandons! »

  • joel touchetteGoogle review★★★★★

    « Service professionnel, offre des options pour ne pas augmenter le prix inutilement concernant le choix des travaux à réaliser »

  • Charles Tremblay-RoyGoogle review★★★★★

    « Service impeccable ! L'électricien a été ponctuel, professionnel et a fait un travail de grande qualité. Tout fonctionne parfaitement. Je recommande sans hésitation ! »

  • Etienne Gauvreau-HurtubiseGoogle review★★★★★

    « Véritable allié stratégique pour nos projets d'électricité, Marc-André est efficace, courtois et rapide. Nous le recommandons! »

  • Isabelle GervaisGoogle review★★★★★

    « J'ai fait affaire avec cette entreprise quelques fois et je recommande fortement. Service super professionnel, et le travail est impeccable. »

  • joel touchetteGoogle review★★★★★

    « Service professionnel, offre des options pour ne pas augmenter le prix inutilement concernant le choix des travaux à réaliser »

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Price estimator

A sense of the
price, before you even call

A few questions about your project and the tool shows a range. It is an estimate to situate your project, not a quote: the real price is confirmed on site.

Électricien qui répond aux questions d’une cliente avant les travaux

Your questions

Frequently asked questions

Nothing here promises a timeline or an amount: for that, we need to see the job.

In a bathroom or a small well insulated room, often yes. In a full basement or a room with large windows, it works as a supplement. That gets calculated before, not after.

Before. The cable is laid on the subfloor and the ceramic goes over it. Once the covering is in place, there is no access left.

Under engineered wood, yes, within the temperature limit set by the manufacturer. Under solid wood it is more delicate and often advised against by the flooring manufacturer.

That is why the install matters. The sensor, for its part, can be replaced without breaking the floor when it was laid in a conduit that stayed accessible, which is what we do every time.

Not inside the slab. We then lay a membrane or a cable under the covering, which behaves differently: it heats up faster and holds it for less time.

Service area

Where we install

Verdun, LaSalle, Lachine, Châteauguay, Longueuil, and the rest of Montreal’s Southwest and the South Shore. Not sure you are in the area? A text message at (514) 929-9963 does the job.

Related services

Often paired
with this service

One project often leads to another. Here is what we most often install at the same time.

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Tell us about your project

Describe it in a few words, even if it is still just an idea. We assess on site what your installation can take, and you decide from there.

(514) 929-9963

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A photo of your panel or of the spot often saves us a back and forth.

Thank you! Your request is on its way. Marc-André gets back to you as soon as he can.

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