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Air ventilation duct cleaning
Professional air ventilation duct cleaning is an investment in your property’s energy efficiency and the service life of the air ventilation system. We clean duct systems thoroughly with registered professional qualifications—using negative-pressure extraction, brushing, and quality assurance. We serve properties in Helsinki, Espoo, Vantaa, and throughout Uusimaa with fixed pricing from €785.
Why is air ventilation duct cleaning important?
Air ventilation duct cleaning is not a statutory obligation for an ordinary resident, and the ductwork does not need to be cleaned routinely. So why have the ducts cleaned? It is primarily about energy efficiency and the service life of the system. When enough dirt accumulates in the exhaust air ductwork, the effective duct diameter decreases and airflow becomes more restricted. This forces the ventilation unit to work harder, which means higher electricity bills and faster wear.
Dirty exhaust ductwork puts extra load on motors and electronics, and repair or replacement costs can be significant. When the ducts are clean, air flows freely and the system operates at its designed performance without unnecessary energy use. Air ventilation duct cleaning is therefore not mandatory, but it is a sensible way to extend the equipment’s lifespan and keep operating costs under control. If anything is unclear about system performance, an air ventilation measurement will reveal whether there are airflow problems and whether cleaning is needed or airflow balancing.
Does air ventilation duct cleaning prevent health problems?
We want to be honest: at the moment, there is no indisputable scientific evidence that air ventilation duct cleaning directly prevents health problems. Supply air ductwork carries only filtered air, and it typically remains very clean even for 10–20 years. Dirt does accumulate in exhaust air ductwork, but because the air flows outward through it—from the dwelling to the outdoors, not back indoors—it does not affect indoor air quality.
We do not use health claims in our marketing, because we want our customers to make decisions based on real information. If you are concerned about indoor air quality, we recommend starting with an indoor air measurement, which tells you concretely what kind of air is being breathed in the space. If needed, a laboratory-analyzed mold investigation of air quality provides scientific certainty about indoor air cleanliness. This honest approach sets us apart from many competitors.
How is air ventilation duct cleaning carried out?
Professional air ventilation duct cleaning is a multi-stage process. At IVAeris, we always start with planning: we review the drawings and system information in advance, agree on the schedule, and keep the customer informed throughout the process. Before the actual work begins, we ensure that the spaces and surfaces are properly protected.
Duct cleaning: negative-pressure extraction and brushing. The section of ductwork to be cleaned is first isolated from the rest of the system with plugs so that dirt does not spread to clean sections. The ductwork is then brushed from the inside using specialized equipment, proceeding systematically. Using a high-performance negative-pressure unit, we create strong suction (duct air velocity at least 13–15 m/s), ensuring that loosened dirt is safely transported into the filtration unit. If necessary, we cover part of the duct branches to ensure sufficient negative pressure.
Ventilation unit cleaning and heat recovery core servicing. In mechanical systems, we clean and inspect the ventilation unit, the heat recovery core (HRV), the condition of the fans, and condensate drainage. Sensitive components, such as silencers, are cleaned gently by vacuuming to prevent fibers from being released into indoor air. At the end of the job, the unit is always fitted with new, clean filters. Ventilation unit cleaning and maintenance is also available as a separate service from €355.
Washing valves, airflow balancing, and quality assurance. The valves are removed and washed. The valve setting position is not changed during washing—if it must be changed, the original position is always recorded accurately before removal. After cleaning, we measure and, if necessary, balance airflow rates to the design values, because duct cleaning and removing valves can change the pressure balance in the premises. Quality is verified by checking duct cleanliness with a finger-wipe test or cameras. We report to the customer the scope of work, issues observed, and any corrections made.
When is it worth having air ventilation ducts cleaned?
Routine air ventilation duct cleaning is not necessary. Supply air ductwork carries only filtered air and typically remains very clean for as long as 10–20 years. Exhaust air ductwork gets dirty faster, but because the air flows outward through it, it does not affect indoor air quality. However, if the exhaust ductwork is extremely dirty, the reduced effective diameter of the ducts can impair ventilation efficiency and increase energy consumption—then cleaning is a sensible measure.
It is worth considering cleaning when there are clear signs of dirt buildup in the air ventilation system: visible dust has accumulated around supply and exhaust air valves, a finger wipe on the inner duct surface clearly picks up dust, ventilation feels ineffective, or wet rooms no longer dry as they used to. If the ventilation unit is noisier than usual, that can also indicate that duct resistance has increased due to dirt. The need for cleaning can also be verified with a visual cleanliness inspection of air ventilation or with a more detailed dust load measurement.
Cleaning is not a bad idea—it is a sensible measure when there is a real need for it. We do not sell unnecessary services; we help you assess your situation honestly.
Grease duct cleaning – a fire safety requirement in commercial premises
The only situation where air ventilation duct cleaning is a regular obligation is related to fire safety. Grease ducts in commercial kitchens must be cleaned at least annually, and in very heavy-use sites even every 3–6 months. The same applies to laundries, bakeries, smokehouses, carpentry workshops, and spray paint shops—any spaces where fire-spreading substances accumulate in the ductwork. The Rescue Act requires that ducts be kept in such a condition that they do not pose a hazard.
Grease duct cleaning is demanding specialist work, where the ductwork is cleaned with degreasing agents and mechanically so that no fire load remains. Read more about grease duct fire safety, legislation, and responsibilities. Grease duct cleaning is available from €1,575.
Natural (gravity) ventilation cleaning
In stone buildings in Helsinki’s inner city and older suburbs, natural (gravity) air ventilation is typical, where air changes through stack effect in the shafts and natural pressure differences. In natural ventilation cleaning, the shafts are swept and the vents are washed. If the make-up air vents are blocked, they must be cleaned or replaced.
A natural system is simpler than a mechanical one, but its performance depends entirely on duct cleanliness and an adequate supply of make-up air. Read more about improving natural (gravity) ventilation. If there are doubts about how well a natural system is working, we recommend starting with an air ventilation survey (from €155), where our specialist assesses the situation and recommends the right next steps.
Air ventilation duct cleaning prices
At IVAeris Oy, we believe in transparent pricing—you can see the prices directly, without having to wait for a quote.
Air ventilation duct cleaning for detached houses starts from €785 (incl. VAT). The final price depends on the size of the property, the system type, and the level of soiling in the ducts. We also offer separate services: ventilation unit cleaning and maintenance from €355, and grease duct cleaning from €1,575.
The easiest way to order cleaning is directly at the bottom of this page: choose the service you want and you will immediately see available time slots. If your site requires a special assessment or you want a tailored quote, you can send us a quote request—we usually respond the same day.
Below you will find all of our cleaning service prices and can book directly.
Fixed-price cleaning services
Can’t find what you’re looking for?
If you’re not sure which inspection or measurement is right for your situation, contact us—we’ll help you get started. You can also request a quote for a tailored solution or explore our other services: air ventilation maintenance, air ventilation consulting, or installation and repairs.
