How long does Air Duct Cleaning Take?

How to Prepare for a Professional Duct Cleaning Appointment | Dust Doctors Blog

Image Source: Dust Doctors

We can’t survive without oxygen to breathe, but what if it’s polluted? Most of our lives occur indoors, thus it’s crucial that the air we breathe contains no harmful substances. This may be accomplished in part by having the air ducts cleaned. To put it simply, air duct cleaning is the process of clearing the air ducts in your house or business of debris like dust and filth. It’s a method for keeping indoor air clean and healthy, which may aid those who suffer from asthma or allergies.

Air duct cleaning is crucial and should not be overlooked. HVAC (heating, ventilation, air conditioning) systems rely on air ducts to provide conditioned air to different rooms in a structure. A filthy duct system may be a breeding ground for bacteria, mold, and other allergens that can trigger or exacerbate respiratory conditions like asthma and allergies. Furthermore, unclean ducts might result in poor indoor air quality, which can have an impact on the health and comfort of the building’s occupants. As a result, keeping up with routine air duct cleaning is essential for a healthy home or workplace.

In this article, we’ll discuss how a clean air duct system may have a positive impact on your home’s air quality and overall health.


Factors Affecting the Duration of Air Duct Cleaning

Cleaning your air ducts is a crucial step in preserving healthy indoor air and avoiding respiratory issues. How long it takes to clean your air ducts will depend on a number of variables. Having an idea of these variables will allow you to better predict how long it will take to clean your air ducts. Here are a few of the variables that might lengthen or shorten the time it takes to clean your air ducts.


Size of house or structure:

One of the most important elements that determines how long it takes to clean air ducts is the size of the house or structure. Cleaning air ducts takes more time depending on the size of the area. This is because there is a greater quantity of ductwork to clean.


Amount of heating, ventilation, and air conditioning units:

The time required to clean air ducts is also impacted by how many HVAC units a building has. It will take more time to clean a building with several HVAC systems than a structure with a single system. The total cleaning time will rise since each system must be cleaned individually.


Ductwork accessibility:

Air duct cleaning time is also influenced by how easily the ducts can be accessed. It will be quicker to clean the ducts if they can be reached without much effort. However, cleaning ductwork might take more time if it is placed in inaccessible regions or needs specialized tools.


Contamination Severity:

Another element that impacts how long it takes to clean air ducts is the amount of pollution already present in the ducting. Cleaning ductwork that is very dirty will take more time than cleaning ductwork that is just somewhat dirty because of dust, debris, or other particles.


Tools and machinery employed:

The time required to clean air ducts is also influenced by the tools and technologies that are used. The cleaning procedure may be shortened with the aid of modern tools and machinery.


Time spent cleaning a typical set of ducts 

How long it takes to clean air ducts depends on factors including the square footage of the area, the degree of pollution, and the ease with which the ducts may be accessed. In the next section, we will discuss how long it typically takes to clean the air ducts in a house or business.


Residential homes:

Cleaning the air ducts in a normal house might take anything from three to five hours. Time spent inspecting, cleaning, decontaminating, and disinfecting are all included in. The size of the house, the number of HVAC systems, and the degree of pollution in the ducting all affect how long the process takes.

A modest house with a single HVAC system and low levels of pollution could only need two to three hours of cleaning time. Cleanup might take as long as 6-8 hours in a big house with several HVAC systems and severe pollution. Some businesses may advertise quicker cleaning schedules than others, but the trade-off might be a less thorough or inefficient job.


Commercial buildings:

Cleaning the air ducts in a business building might take a long time if there are a lot of vents and a lot of HVAC units. Air duct cleaning typically takes between 4 and 8 hours for a commercial structure. The cleaning procedure might take many days in bigger buildings with various HVAC systems.

Commercial building air duct cleaning times are affected by many factors, including the degree of filth in the ducting and the ease with which the ductwork may be accessed. Accessing and cleaning ductwork that is out of reach may take more time and need the use of specialized equipment or methods.

Cleaning of Ventilation Systems Processes

If you want clean, contaminant-free ductwork, you need to have your air ducts professionally cleaned. This article will examine the four primary phases of cleaning air ducts.



Inspecting the ductwork is the first step in cleaning it. In order to assess the degree of pollution and spot any problems, the technician will visually check the ducts. In order to examine the ductwork’s inaccessible corners, they may use specialized tools like a borescope or a camera.



As soon as the professional is done with the inspection, the cleaning procedure will begin. They will clean the ducts using specialized tools including a powerful vacuum and a spinning brush to get rid of dust, filth, and other particles. Contaminants will be sucked out of the ducts and into a collecting system thanks to the negative pressure created by the vacuum. The revolving brush will stir up and loosen dust and dirt, making it simpler for the vacuum to pick up.



The technician will continue on to the decontamination process after the ducts have been thoroughly cleaned. Any leftover germs or microbes in the ductwork may be eliminated with the use of a disinfectant. Use of a fogging machine to apply the disinfectant ensures that it is uniformly dispersed throughout the ducts.



Air ducts are not complete until they have been sanitized after being cleaned. The technician will treat the ducts with an antibacterial solution to kill any microbes that could try to set up shop in there. This strategy will aid in keeping indoor air quality high and avoiding health issues related to breathing in polluted air.


Frequently Asked Questions: FAQs


Is it possible to clean the ducts while people are still in the building?

People may be in the building while the air ducts are being cleaned, but they should be kept as far away from the cleaning process as possible.


Do all firms that clean air ducts provide the same level of availability?

Contrary to popular belief, the time it takes to clean air ducts may vary widely from company to company, and even from job to job.


How long does it typically take to clean air ducts?

Air duct cleaning may take anywhere from three to five hours in a regular house, and anywhere from four to eight hours in a commercial facility.

Can air duct cleaning take longer than the average duration?

Depending on the size of the area to be serviced and the level of contamination present in the ducting, air duct cleaning might take much longer than usual.


How can I make sure the air ducts are cleaned thoroughly and efficiently?

If you want your air ducts cleaned properly and efficiently, it’s important to choose a trustworthy firm with plenty of knowledge in the field.


Final Words

Cleaning air ducts may take anywhere from a few hours to a few days, depending on variables including the square footage of the building, the severity of the pollution, and the HVAC system in use. Cleaning the air ducts in a house typically takes 3 to 5 hours, while commercial facilities might take anything from 4 to 8 hours. To keep indoor air healthy, remember that time is not the most essential aspect in the process. A more important consideration is the efficiency and completeness of the air duct cleaning procedure. 

Keeping the air in your home or place of business clean and healthy is as simple as hiring a professional air duct cleaning service and scheduling visits at the intervals they advise. Instead of thinking about how long an air duct cleaning would take, you should think about how much better your home’s air quality will be afterward.

Thirsty for more knowledge? We have more articles below: 

Why You Should Have Duct Cleaning Tools?

What Cleaning Products Not to Mix? 

8 Best Laminate Floor Cleaners To Ponder This Year


Written By: Trisha Mae Raymundo


Air Duct Cleaning
Mikalya Smith
Mikalya Smith

Cleaning expert and the head of content in cleanz. She has tremendous experience with cleaning methods and techniques.