Ductwork Cleaning
Ductwork cleaning is essential for reducing fire risks, eliminating hygienic hazards such as mold or allergens, and optimizing the overall system performance and efficiency.
Why Clean HVAC Ductwork?
Accumulated debris and contamination inside the ductwork represent a hidden risk for any building. Regular cleaning eliminates fire hazards, prevents the spread of mold or bacteria, and ensures a healthy indoor air quality as well as the full efficiency of the entire HVAC system.
Fire Safety
Grease or combustible dust accumulates inside the ductwork and can act as fuel in the event of a fire.
Health and Hygiene
Dust accumulates inside the ductwork, providing a breeding ground for mold and yeast, as well as a trapping site for allergens.
System Performance
Even a layer of just a few millimeters of debris can reduce system performance by dozens of percent.
Our Services
Our Process
No Dismantling Required We do not dismantle the ductwork; instead, we create specialized access points through which the cleaning is performed.
Zero Downtime Cleaning can be performed during full operations, eliminating the need to wait for a production shutdown.
Immediate Availability We are capable of deploying up to 7 independent teams or a total of 35 technicians.
Our Cleaning Methodology
01Brushing Systems
We utilize rotary brushes of various diameters and materials to effectively remove debris inside the ductwork—ranging from fine dust and baked-on contaminant layers to heavy grease.
02Dry Ice Blasting
Where appropriate, we utilize the dry ice blasting method. This eco-friendly cleaning solution generates no secondary waste, making it highly effective not only in industrial facilities but across various other applications.
03Robotic Cleaning
In larger systems, we deploy various types of duct cleaning robots for rapid execution. We are capable of cleaning both horizontal and vertical ductwork with round or rectangular cross-sections.
04Extraction and Filtration
It is not enough to simply dislodge debris from the duct surface; it must also be extracted from the system. To address this, we have engineered our own filtration systems equipped with high-capacity fans, tailored for various types and particle sizes of debris.
05Inspection and Documentation
During both the preparation phase and for documenting the cleaning progress, we utilize various types of advanced inspection cameras to provide clear evidence of both pre-cleaning and post-cleaning conditions.
Why Alkion?
Flexibility
We work in shifts, including nights and weekends, tailored entirely to your specific operational needs.
Experience
We have been on the market for 17 years, executing projects across the entire Czech Republic and throughout Europe.
Agility
With 35 technicians and our own proprietary technology, we are fully equipped for immediate deployment.
Efficiency
Navrhneme optimální řešení, které s vámi otevřeně zkonzultujeme.
Our Experience
Case Studies
US Navy
US Navy requires regular cleaning of their HVAC systems on all vessels. We have been partners of the 6th fleet based in Mediterranean since 2011. This includes their flag ship USS Mount Whitney and the expeditionary mobile base USS Hershel ‘Woody’ Williams.
Zentiva
In the cleanrooms used for pharmaceutical manufacturing at Zentiva’s Prague site, we carry out annual cleaning of sensitive equipment and selected sections of HVAC ductwork. This is a technically demanding operation requiring specialised protective equipment and tools to meet the stringent hygiene and cleanliness standards of the environment.
FAQ
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Are there any laws or standards that require the cleaning of ventilation ductwork?
There is a non-binding technical standard, EN 15780, which addresses the cleanliness of ventilation ductwork in residential areas, and we strictly follow it in our projects. However, there is currently no legally binding regulation that mandates duct cleaning.
Do you hold any certifications as proof of expertise?
Yes, we hold the international ASCS (Air System Cleaning Specialist) certification, awarded by the North American association NADCA (www.nadca.com). We also hold a certificate from the German Association of Engineers (Verein Deutscher Ingenieure), specifically VDI 6022-B, which also defines the methodology for ventilation ductwork cleaning.
Is it possible to perform duct disinfection without prior cleaning?
Disinfection is only effective when performed on clean surfaces. If a surface—such as the inside of a duct—is contaminated, the disinfection will not achieve the desired effect, as bacteria or viruses can survive deeper within the debris. Therefore, performing disinfection without prior cleaning is only feasible in newly constructed buildings up to approximately 10 years old; otherwise, we strictly recommend cleaning before applying any disinfectant.
Other Services
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