The decision to install mechanical ventilation in a single-family home requires careful budget planning. As leaders in the distribution of installation solutions, at Onninen we know that the cost of such an investment depends on many factors – from the size of the house, through the type of system, to the stage of construction. In our assortment, you will find complete ventilation systems from renowned manufacturers that will provide optimal solutions for every project.
The costs of installing mechanical ventilation in a house with an area of 120-150 m² range from 15,000 to 45,000 PLN, depending on the chosen system and the scope of installation. At Onninen, we offer both simple exhaust systems and advanced solutions with heat recovery that allow recovering up to 90% of heat from the exhausted air.
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Components of mechanical ventilation costs – a comprehensive overview
When planning a budget for mechanical ventilation, several main cost components should be considered. From our many years of experience in the installation industry, we find that the most important budget items are:
Design costs – the foundation of an effective installation
A good mechanical ventilation design is the basis for the success of the entire investment. The cost of preparing the execution project ranges from 1,500 to 5,000 PLN. A professionally executed project takes into account the specifics of the building, the number of residents, and the optimal placement of ventilation ducts. At Onninen, we cooperate with experienced designers who will provide solutions tailored to your needs.
Devices and system components
The central ventilation unit (heat recovery unit) is the heart of the mechanical ventilation system. In Onninen's assortment, you will find heat recovery units with different capacities:
- House up to 120 m² – heat recovery unit 8-12 thousand PLN
- House 120-150 m² – heat recovery unit 10-15 thousand PLN
- House 150-200 m² – heat recovery unit 12-20 thousand PLN
- House over 200 m² – heat recovery unit 15-25 thousand PLN
We also offer complete air distribution systems, including ventilation ducts, distribution boxes, anemostats, and high-quality control elements.
Installation costs – how much to pay for professional installation
The labor cost for installing mechanical ventilation usually ranges from 8,000 to 15,000 PLN. At Onninen, we recommend working with certified installers who guarantee professional execution in accordance with technical requirements.
Installation during construction vs. modernization
Significant savings can be achieved by planning mechanical ventilation at the design stage of the house. Installation during the closed shell stage allows for:
- Elimination of costly ventilation chimneys
- Optimal placement of ducts without additional demolition work
- Use of cheaper windows without air inlets
- Reduction of installation costs by up to 30%
| House area | Total cost (new house) | Total cost (modernization) |
|---|---|---|
| 100 m² | 17,000 - 25,000 PLN | 22,000 - 32,000 PLN |
| 120 m² | 20,000 - 30,000 PLN | 26,000 - 38,000 PLN |
| 150 m² | 25,000 - 35,000 PLN | 32,000 - 45,000 PLN |
| 200 m² | 35,000 - 50,000 PLN | 45,000 - 65,000 PLN |
Types of mechanical ventilation – which one to choose
Exhaust mechanical ventilation
The simplest and most economical system, in which air is mechanically removed, and the supply occurs through window inlets. Total cost: 8,000 - 15,000 PLN. In our offer, you will find high-quality exhaust fans and inlets from renowned brands.
Supply-exhaust ventilation with heat recovery
The most effective solution, allowing for heat recovery at the level of 85-95%. The system provides a constant supply of fresh, purified air and significant savings on heating. At Onninen, we offer complete ventilation systems with heat recovery, tailored to different sizes 
of houses.
Wall heat recovery – an alternative for modernization
For modernized buildings, we recommend wall-mounted heat recovery units that do not require an extensive duct network. The cost of the unit with installation: 3,000 - 8,000 PLN. This is an ideal solution for specific rooms, providing local air exchange with heat recovery.
Operating costs – long-term planning
The operation of mechanical ventilation involves regular costs that should be included in the household budget:
Electricity consumption
Modern heat recovery units from our offer are characterized by high energy efficiency. Annual energy costs range from 150 to 400 PLN, depending on the size of the system and the intensity of use.
Maintenance and service
- Filter replacement – 70-300 PLN per year (every 3-6 months)
- Service inspection – 300-500 PLN per year
- Duct cleaning – 500-800 PLN (every 3-5 years)
The total annual operating costs usually amount to 800-1,200 PLN, which is disproportionate to the savings on heating, which can reach 30-50% of heating costs.
Frequently asked questions
How much does mechanical ventilation cost in a 150 m² house?
A complete mechanical ventilation system with heat recovery in a 150 m² house costs 25,000-35,000 PLN. The price includes the heat recovery unit, ducts, installation, and commissioning. At Onninen, we offer systems from various manufacturers, tailored to the budget and technical requirements.
Is mechanical ventilation financially worthwhile?
A system with heat recovery pays off within 7-12 years through savings on heating. Heat recovery allows reducing heating costs by 30-50%, which at current energy prices means savings of several thousand PLN per year in a single-family home.
When is the best time to plan the installation of mechanical ventilation?
The optimal moment is during the architectural design stage of the house. Planning mechanical ventilation before construction begins allows saving on ventilation chimneys, window inlets, and installation costs. Duct installation is done in the closed shell state.
What are the differences between exhaust ventilation and supply-exhaust ventilation?
Exhaust ventilation removes air mechanically, and the supply occurs through inlets (cost 8-15 thousand PLN). Supply-exhaust ventilation controls both the supply and exhaust of air, often with heat recovery (cost 20-50 thousand PLN). The latter provides better air quality and greater energy savings.
Can mechanical ventilation be installed in an old house?
Yes, but the costs are 20-40% higher than in new construction. In modernized houses, wall-mounted heat recovery units or systems with flexible ducts are often used. Additional openings and installation modifications may be necessary, which increases installation costs.
What are the annual operating costs of mechanical ventilation?
Annual operating costs amount to 800-1200 PLN and include electricity (150-400 PLN), filter replacement (70-300 PLN), and service inspections (300-500 PLN). These costs are significantly lower than the savings on heating that a heat recovery system can bring.
Investment in the future – why it is worth choosing Onninen
Mechanical ventilation is an investment that pays off over years of use. As a leader in the installation market, at Onninen we provide comprehensive support – from selecting the right ventilation systems to professional technical advice.
Our team of experts will help you choose the optimal solution, taking into account the specifics of the building, budget, and expectations regarding living comfort. In our warehouses, systems from renowned manufacturers are available immediately, ensuring short delivery times and the highest quality of products.
When planning mechanical ventilation, it is worth taking advantage of the experience of the Onninen team. We offer not only the highest quality products but also comprehensive technical support that will help optimize costs and achieve the best energy efficiency. Contact our specialists – together we will find the ideal solution for your home.