Chisinau, str. Burebista 110 
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Expansion tank installation in Chișinău and Moldova — installation in 1–2 hours
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Why is an expansion tank needed in a heating system?
In a closed heating system, water expands when it is heated.
If there is no expansion tank or it is installed incorrectly — the pressure begins to rise quickly.
This is when the main problems of the system start to appear.
What happens without an expansion tank:
Excessive pressure in the system
When heated, the volume of water increases by up to 4%. Without compensation, the pressure may rise to a critical level.
Damage to the boiler and automation
Excess pressure causes the safety valve to activate and accelerates the wear of the heat exchanger.
Leaks in connections and radiators
Fittings, valves and threaded connections may begin to leak due to constant pressure fluctuations.
Accelerated wear of pipes and radiators
The system operates under overload conditions, which reduces the lifespan of the equipment.
Types of expansion tanks we install
We use diaphragm expansion tanks that compensate for the increase in water volume when it is heated. They stabilize pressure in the heating system and protect the boiler, radiators, and pipes from overload.
We install hydro accumulators for pumping stations and water supply systems. Such tanks maintain stable water pressure and reduce the number of pump starts, which increases the lifespan of the equipment.
We select and install compact expansion tanks for wall-mounted boilers and small heating systems. They help stabilize pressure even when installation space is limited.
For systems with a large water volume, we install high-capacity vertical expansion tanks. They effectively compensate for coolant expansion and ensure stable heating system operation in private homes.
Expansion tank brands we work with
How expansion tank installation works
Expansion tank installation cost
Why customers trust us to install an expansion tank
Experience in heating system installation
We install expansion tanks in apartments, private houses, and boiler rooms. We know how to properly connect the tank so the heating system operates steadily without pressure fluctuations.
Accurate equipment selection
Before installation, we calculate the system volume and operating pressure. This allows us to select an expansion tank that effectively compensates for water expansion.
Installation according to technical standards
We install the tank at the correct point in the system and use reliable connections. This type of installation ensures stable pressure and protects equipment from overload.
System check after installation
After installation, we check the pressure, connections, and system tightness. This ensures that the heating system works safely and without leaks.
Warranty on completed work
We provide a warranty for expansion tank installation and offer consultation on the further operation of the heating system.
Frequently asked questions
The expansion tank is usually installed on the return line of the heating system near the boiler. This placement allows it to compensate for water expansion during heating and stabilize pressure in the system.
Yes, an expansion tank can be installed in an already operating heating system. The technician determines the optimal connection point, installs the tank, and adjusts the pressure according to the system parameters.
The tank volume depends on the total amount of water in the heating system and the boiler capacity. On average, the expansion tank is about 10% of the coolant volume, but the exact calculation is performed after inspecting the system.
Expansion tank installation usually takes between 1 and 2 hours. During this time, the technician installs the tank, connects it to the system, adjusts the pressure, and checks the tightness of all connections.
Yes. The pressure in the expansion tank must match the operating pressure of the heating system. Incorrect adjustment may cause pressure fluctuations and improper system operation.
Without an expansion tank, the pressure in the heating system increases when water heats up. This can lead to the safety valve activating, leaks, and accelerated wear of the equipment.
The main signs of malfunction are pressure fluctuations, frequent activation of the safety valve, and leaks in the heating system. In such cases, the tank should be checked or replaced.
We provide expansion tank installation services throughout Moldova
- Anenii Noi
- Balti
- Basarabeasca
- Bender
- Biruinta
- Briceni
- Bucovat
- Cahul
- Cainari
- Calarasi
- Camenca
- Cantemir
- Causeni
- Ceadir Lunga
- Chisinau
- Cimislia
- Codru
- Comrat
- Cornesti
- Costesti
- Crasnoe
- Cricova
- Criuleni
- Cupcini
- Dnestrovsc
- Donduseni
- Drochia
- Dubasari
- Durlesti
- Edinet
- Falesti
- Floresti
- Frunza
- Ghindesti
- Glodeni
- Grigoriopol
- Hincesti
- Ialoveni
- Iargara
- Leova
- Lipcani
- Maiac
- Marculesti
- Nisporeni
- Ocnita
- Orhei
- Otaci
- Rezina
- Ribnita
- Riscani
- Singera
- Singerei
- Slobozia
- Soldanesti
- Soroca
- Stefan Voda
- Straseni
- Taraclia
- Telenesti
- Tiraspol
- Tvardita
- Ungheni
- Vadul lui Voda
- Vatra
- Vulcanesti
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