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water heater installation, white wall boiler and pipes on the wall of an empty room, in 2025 Tallinn Torutööd installed 251 new boilers.

#1 plumbing company in Tallinn

Water heater installation, maintenance and repair in Tallinn

Tallinn Torutööd installs, maintains and repairs domestic hot water heaters in apartments, detached houses and apartment buildings across Tallinn and Harju County. We mount new units, remove limescale, replace heating elements and thermostats, and diagnose leaking tanks.

The power of the electric boiler's heater is 2000 watts, and the size of the tank is chosen according to the size of the household: a 150-litre water heater is suitable for a family of four, an 80-liter one for a couple. The total hardness of the Tallinn tap water from Lake Ülemiste is 2.06 mmol/l, that is, the water is hard, which is why a scale layer grows on the heating element every year.

Call the emergency plumber +372 XXXX XXXXRequest a quote for planned work
  • Open every day
  • Licensed and insured
  • 100% satisfaction guarantee
  • Wall-mounted water heater installation from €110

Water heater services and related work

A leaking tank requires a new water heater; heating elements, thermostats and valves can be replaced, and limescale can be removed. By the end of 2025, Tallinn Torutööd had completed 12,103 water heater jobs, including 4,917 new installations and 3,806 heating element replacements.

  • With gloved hands on the white wall boiler, the family can continue to use cold water during the replacement of the heating element, because only the valves of the boiler are closed.

    Water heater element replacement

    the heating element is a rod heater attached to the tank through a threaded flange, on the surface of which a layer of scale accumulates over time, which isolates the heat transfer and extends the heating time until the body finally burns out. During the replacement, we also always check the magnesium anode, which protects the steel core of the tank from rusting: an anode worn less than 10 mm is replaced at the same time.

    Tallinn Torutööd describes the heating element replacement in more detail on water heater element replacement page, where there are also photos of the old and new heating element side by side.

  • water heater cleaning, the heat exchanger of the open device is cleaned with a brush, Tallinn Torutööd uses citric acid to remove scale, which does not damage the enamel layer.

    Water heater cleaning

    Cleaning empties the tank, opens the cleaning hatch and removes the scale debris settled at the bottom and the layer accumulated on the heating element with a scraper and acid solvent. In 3 years, 2 liters of hard, chalk-like sediment accumulates at the bottom of a 100-litre water heater.

    Tallinn Torutööd gives a 2-year written warranty on the cleaned boiler.

  • water heater repair, the old dirty device and the new white device side by side, gloved hands hold the pliers at the pipes, the universal safety valve is not suitable for every boiler, so Tallinn Torutööd chooses the valve according to the pressure class of the boiler.

    Water heater repair

    During the repair, we replace the safety valve, gaskets and thermostat leaking due to calcification. A rusted weld is the limit of repair: a leaky tank always means a new water heater, because the seam made at the factory cannot be restored on site.

    Tallinn Torutööd tells the customer about the tank malfunction already during the diagnosis, so that money is not spent on unnecessary repairs and the decision for a new water heater is made immediately.

  • The electronics of the open wall unit are measured with a multimeter, before changing the thermostat, the plumber switches off the boiler from the electrical panel and checks that there is no voltage at the terminals.

    Water heater thermostat replacement

    The boiler has two separate thermostats: the work regulator, which can be used to select the temperature from the dial, and the safety thermostat, which turns off the heating element completely when the water reaches 90 degrees. To prevent Legionella, the water in the boiler is heated to 60 degrees once a week, and a lower setting is sufficient for daily use.

    Tallinn Torutööd replaces the thermostat together with the gasket, not just the thermostat head, because the old gasket that is removed remains bent and creates a new leak.

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Water heater installation prices

The price of water heater installation is increased by a larger volume, a new installation location and a wall that needs reinforcement. The prices below are for work without the cost of the boiler, the call-out fee within Tallinn is 7.40 euros.

ServicePrice
Wall-mounted water heater installationalates 110 €
Water heater descalingalates 110 €
Water heater repair: valve or sealalates 69 €
Heating element replacementalates 77 €
Thermostat replacementalates 50 €
Call-out within Tallinn7,40 €

The main factors affecting the price:

  • water heater capacity: a larger tank is heavier and requires a stronger wall mount
  • installation location: the boiler inside the kitchen cabinet also needs ventilation control
  • type of water connection: existing pipes or extendable line
  • amount of scale: the duration of cleaning increases with the scale settled at the bottom of the tank
  • removal and disposal of the old boiler when installing a larger volume device
  • consent of the apartment association to connect the boiler to the general hot water piping of the house

How long does water heater installation take?

Installation of a new 100-liter water heater at the same mounting location takes 2 hours: the old device is removed, the wall is checked, the new one is raised on the brackets and the water and electricity lines are connected. Installation at a new location, where the pipes have to be extended, takes 4 hours.

Cleaning the boiler from scale takes 90 minutes, and cleaning the boiler installed in a narrow kitchen cabinet takes 2 hours, because it is partially disassembled first.

Replacing the heating element takes 45 minutes and replacing the thermostat 30 minutes, each as a separate trip.

water heater repair in terms of valve or seal takes 40 minutes. We will respond to the enquiry within two hours on a working day, and we will start the installation of the new water heater within five working days. We can reach the leaking boiler in Tallinn in 45 minutes.

The plumber writes notes next to the wall-mounted water heater, the plumber reads the missing year of manufacture from the serial number of the boiler.
In the washroom of a detached house in Nõmme, there is a large white wall boiler on a painted brick wall, a white pipe with a brass valve under it, a washing machine next to it, a small window and towels, a shut-off valve is installed on the water line of the washing machine, so that changing the hose of the machine does not shut off the water in the boiler.

Water heater installation for a family of four in Nõmme, near Hiiu Stadium

Customer: Hille P., a house owner in Nõmme who needed a bigger boiler for a family of four. property: Near Hiiu Stadium, Nõmme.

1. Measuring the retaining wall: the old 80-litre water heater in the kitchen cabinet was empty after the second morning shower, so the family of four's new 150-litre water heater found its place on the solid brick wall of the laundry room, which carries a full tank of 190 kilograms.

2. Installation and connection: the floor of the laundry room and the washing machine were under a protective film, the water line was extended from the kitchen to the laundry room with 4 meters of 20 mm PEX pipe, and the safety valve was placed next to the boiler.

3. Testing and Handover: Filled tank joints remained dry, safety valve opened in test, and both results went into handover protocol with 2-year written performance warranty.

Invoice: Installation of the boiler on the wall, 1 × 110 €; sanitary engineering jobs, extension of the water line to a new place, 2 h × €49; PEX pipe 20 mm, 4 m × €2.30; call-out within Tallinn, 1 × €7.40. Total €224.60 including VAT; the boiler itself is not included in the labor price.

Working time: 4 hours including the extension of the water line to a new location (2025, handover report no. 53 961).

Result: The 150-litre water heater provides hot water for all four morning showers in a row.

How we work

Three steps from inquiry to finished boiler.

  1. 1. Check the wall and measure

    You call or fill out the form at the bottom of the page. On the property, we measure the wall structure and attachment point, check the location of the water and electricity lines, and ask for the size of the household, according to which we recommend the capacity. The recommended capacity and the material of the retaining wall determine the price of the installation.

  2. 2. Install and connect

    We cover the floor and the nearest furniture with a protective film, because when emptying the old boiler, water also reaches the floor. The new water heater is attached to the brackets, the water pipe and the electric line are connected, and the safety valve is always installed next to the boiler, not further into the pipeline.

  3. 3. Test and hand over

    We fill the tank with water, check for leaks at the connections and test the opening of the safety valve. The result of the leak check and safety valve test goes into the handover protocol. The work is covered by a 2-year written workmanship warranty.

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Choosing the right water heater size

The size of the household, the number of water outlets and the space limitation of the installation site decide which water heater capacity is suitable. The average volume of boilers installed in 2025 was 104 liters.

80 litres for one or two people

The 80-litre water heater provides enough hot water for a couple for an evening bath, and the dishwasher is turned on after the bath. A smaller boiler heats up faster because there is less water, and several consecutive showers will empty this reserve.

150 litres for a family

The 150-litre water heater is suitable for a family of four, where four people take a shower in the morning and use both the bath and the dishwasher in the evening. Its reserve lasts the entire morning shower cycle, and the heating element heats up the water again in the evening.

Instant water heater for a small kitchen

A flow-through boiler is suitable for a narrow kitchen, where there is not enough wall space for the tank, which heats the water at the moment the tap is opened and does not keep a reserve. Its performance is limited by the flow rate: you cannot have two taps at full capacity at the same time, because the heating element cannot heat the larger amount quickly enough.

Frequently asked questions

What size water heater does a family of four need?

A 150 liter boiler is suitable for a family of four, which covers the morning shower cycle and the evening bath without emptying the reserve. The smaller 100-liter capacity will be insufficient for a family of four during the morning rush hour.

Why is the water from my heater no longer hot enough?

There are two reasons: a layer of scale grown on the heating element, which isolates the heat transfer from the water, prolongs the heating and keeps the final temperature low, and the thermostat that was accidentally turned down on the disc.

Can a leaking water heater be repaired?

Leakage from the valve or fittings is repaired by replacing the gasket or valve. A leak from a tank weld ends the life of the boiler, because the factory-welded seam is not redone on site.

How often should a water heater be cleaned?

Tallinn Torutööd cleans the boiler from scale every 2 years, because the Tallinn tap water is hard and scale accumulates on the heating element constantly. Regular cleaning extends the life of the heating element and keeps the heating time short.

Does the magnesium anode also need replacing?

Yes, the anode protects the steel core of the tank from rusting and wears itself out in the process. The diameter of the new anode is 20 mm, and the anode worn below 10 mm is replaced, because the tank wall starts to rust instead.

How much does water heater installation cost?

water heater installation at the same mounting point starts at 110 euros and takes 2 hours. The price of the boiler itself is not included in the price of the installation work and varies by volume and manufacturer.

What should I do if my water heater is leaking?

Close the water heater’s supply valve, disconnect the device from the mains and call. The emergency technician will be at the leaking boiler in Tallinn within 45 minutes and will start by checking the safety valve and the seals of the connections, the call-out costs 7.40 euros.

Where do you install and repair water heaters?

We install and maintain boilers within all districts of Tallinn, in the homes of Lasnamäe, Mustamäe, Õismäe, Kesklinna, Kalamaja, Nõmme and Pirita, and in Harjumaa in Maardu town, Viimsi township, Saue township, Keila town and Rae township. We do boiler work in apartment kitchens and detached house washrooms. Of the 612 boiler jobs in 2025, 431 were done in Tallinn and 181 elsewhere in Harju County.

Request a water heater quote

Fill out the form below or call +372 XXXX XXXX. Briefly describe the size of the household and the current condition of the boiler and, if possible, attach a photo of the installation location.

Call the emergency plumber +372 XXXX XXXX
  • Open every day
  • Licensed and insured
  • 100% satisfaction guarantee

Please enter your name and either a phone number or email address.

Call the emergency plumber +372 XXXX XXXX