Question 1

Is electric underfloor heating expensive to run during winter?

Accepted Answer

Thanks to modern digital thermostats, underfloor heating uses significantly less power than in the past. By programming the thermostat (for example, lowering the heat at night and raising it in the morning), you can cut energy consumption by over 20%. For a standard-sized bathroom, this usually amounts to just a few hundred SEK per year.

Question 2

Which is better: electric or hydronic (water-based) underfloor heating?

Accepted Answer

Electric underfloor heating is unbeatable for individual rooms, especially during bathroom and hallway renovations. It is much cheaper to install, adds very little floor height (approx. 10-15 mm), and heats up incredibly fast. Hydronic heating is recommended if you are building a completely new house and already have an efficient heat pump.

Question 3

Can I install underfloor heating under my new wood floor?

Accepted Answer

Yes, it works perfectly! We install a special heating foil designed for wood and laminate floors and configure the thermostat with a temperature limit sensor (usually max 27°C). This prevents the floor from drying out and cracking while providing fantastic thermal comfort.

Question 4

How long does it take to install floor heating in a bathroom?

Accepted Answer

The electrical work itself is swift. We measure the room, route channels for the sensor, and lay the heating cable—which usually takes less than a workday. Then the tiler takes over for self-leveling and tiling. We return afterward to connect and program the smart thermostat.

Question 5

Can I make the floor heating smart and control it with my phone?

Accepted Answer

Absolutely. We regularly install WiFi-connected thermostats that allow you to monitor energy usage and control the heating via an app, even when you're not home. Some advanced models can even be integrated with hourly spot-price contracts to heat the floor when electricity is cheapest.

Question 6

What should I do in case of an electrical emergency or power outage?

Accepted Answer

Safety first! If your RCD (jordfelsbrytare) trips repeatedly or you smell burning plastic, do not touch anything. We offer 24/7 emergency electrical services across Greater Stockholm with fast response times. Our certified electricians will secure your electrical system and fix the fault immediately to minimize the risk of fire or property damage.

Question 7

Which electrical installations provide the biggest savings on my energy bill?

Accepted Answer

The fastest ways to lower your energy costs are installing smart home controls (like Plejd) and upgrading to energy-efficient LED lighting. By scheduling your heating and lighting according to spot electricity prices, you can reduce energy waste by up to 20%. We handle all types of electrical work, from smart homes to safe EV charger installations.

Question 8

Can I use the ROT deduction and Green Tech deduction at the same time?

Accepted Answer

Yes! When we install an EV charger, we apply the Green Technology deduction, giving you a 50% discount on both materials and labor directly on the invoice. For other general electrical work in your home (like upgrading a fuse board), we deduct 30% of the labor cost via the ROT deduction. We handle all the paperwork with the Swedish Tax Agency for you.

Question 9

Why is it important to hire a certified electrical company?

Accepted Answer

Faulty wiring is one of the leading causes of house fires. Smista Elinstallation AB is a fully authorized electrical contractor approved by the Swedish National Electrical Safety Board (Elsäkerhetsverket) with over 30 years of combined experience. This guarantees a safe installation, valid warranties, and the official documentation often required by your insurance company.

Warm Floors, Maximized Comfort

Invisible Comfort

Dry Bathrooms

Invisible Heat

Smart Control

Even Temperature

20-Year Full Warranty

How It Works

Planning

Installation

Activation

Frost Protection?

FAQ about Underfloor Heating

Further reading & related services

Electric vs Hydronic Floor Heating: Comparison and prices 2026

Cut Electricity Costs with Smart Control

Living Room Lighting Design: Layered lighting and dimmers

Smart Home & Automation

Energy Optimization