Dans Air Duct Cleaning

HVAC Duct Cleaning

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All You Need To Know About Air Duct Cleaning

The Correct Duct Cleaning Techniques

Air duct cleaning is a misnomer…

In fact, the full HVAC system needs to be cleaned and not only the air ducts.

If you fail to clean all of the different components in the system, it can result in contamination of the system and reduction of the advantages to the duct cleaning service.

clean aluminium duct

Just as you would not clean half of the kitchen or living room, you should not clean only one part of the HVAC system.

According to NADCA, you should clean the full HVAC system including the following parts:

– coils
– air ducts
– registers
– drain pan
– air plenum
– drills
– air filter
– heat exchanger
– air cleaner
– blower motor and assembly

There are two core elements to cleaning an HVAC system – breaking the contaminants loose and the collection of contaminants.

1. Breaking The Contaminants Loose

Effective cleaning of the HVAC system requires removal of the contamination sources. This source removal starts with the usage of one or more agitation devices created to loosen contaminants from the surfaces in the heating and air conditioning system. For instance, agitation devices can include air whips, brushes, and compressed air nozzles. It is also possible to achieve agitation in the system via contact vacuuming and hand-brushing.

2. Collection Of Contaminants

During the cleaning procedure, the full HVAC system is put under a continuous negative pressure to reduce the spread of contamination. This continuous negative pressure (vacuum) allows the very fine particles to be removed from the HVAC system as they start to become airborne. This will ensure the particles are not released in the living area when the system is turned on after being cleaned. The negative pressure also acts as a means of extracting loosened contaminants which are collected and eliminated from the house.

The System Access

Cleaning the HVAC system is not a complicated procedure, but each of the cases is unique. Where possible, any access to the duct interiors should be made using existing openings such as return grills, supply diffusers, service openings or duct end caps. A cleaning technician may need to cut access holes within the duct work to reach inside the different cleaning tools. Forming the service openings, along with the closure of the holes, requires professional skills and craftsmanship.

The Type Of Equipment

There is a plethora of duct cleaning equipment available to professional HVAC cleaning technicians. Portable and truck-mounted vacuum cleaners can be utilized to prevent the spread of any contaminants and ensure the system is cleaned according to NADCA standards.

The Antimicrobial Chemicals

Antimicrobial chemicals include disinfectants, deodorizers and sanitizers which can be applied in the HVAC system; thereby, addressing microbial contamination and managing odors. Of course, the only chemicals that can be used are those registered with the United States Environmental Protection Agency.

So Why Clean My Air Ducts Anyways?

Why Should You Clean Air Ducts?

Answer – Because they get dirty and contaminate the indoor air in your home!

Not only dust and dirt but many other contaminants can accumulate in your homes ductwork system.

Here are some of the many harmful contaminants that can decrease the quality of your indoor air:

Pet dander

Tobacco smoke

Mold spores




Some people are more prone to respiratory issues resulting from harmful contaminants in the ductwork system. Asthma and allergy sufferers, young kids, and elders are more susceptible to poor indoor air quality than others. Regular air duct cleaning can help address this problem.

woman with allergies

Benefits Of Regular Air Duct Cleaning

NADCA‚Äôs rule of thumb about the ductwork system in your home is that “if the ductwork system in your home looks dirty, they probably are.” Filthy ductwork systems should be inspected by a professional air duct cleaning company in the area. Professional air duct cleaning comes with many advantages to you and your loved ones. Here are some of the benefits of regular air duct cleaning.

Indoor Air Quality

Homeowners are concerned about the indoor air quality in their homes. That’s why they have decided to investigate air duct cleaning. The HVAC system is like the lungs of your home – it takes in air and breathes air out. We generate a lot of pollutants and contaminants through normal occupation in a home. These pollutants are pulled into the HVAC system and circulated inside the house at least 5-7 times a day. The re-circulation will result in the build-up of contaminants inside the ductwork system.

Dirty ductwork systems can contribute to unhealthy indoor air in your home. They may result in various health issues such as respiratory conditions, autoimmune conditions, and environmental allergies.

Energy Saving

The Department of Energy states that over 40% of the energy used for HVAC systems in a home is wasted. Dirt and dust in the ductwork system cause the HVAC unit to work harder to keep your home comfortable. It shortens the lifespan of the system. Filters are not enough to keep dirt and dust out of the HVAC system. The ductwork will become dirty through regular use of the system.

When you have a clean HVAC system in the house, the unit doesn’t need to work so hard to maintain the required comfort level in your home. Less energy is used and you will save on energy bills over time.

Top 5 Benefits of Duct Cleaning

Air Duct Cleaning

The air ducts in your home circulate the air from the HVAC system into and out of the room.

It provides a very important function by guaranteeing the interior comfort of your home regardless of the season.

Air circulates through the air ducts multiple times a day. The air that circulates through the ducts is the air you and your loved ones breathe each day. That’s why the air should be as clean as possible at all times. That’s where air duct cleaning comes in handy.

The process involves removing dust, debris, and other contaminants from the ductwork system. The ductwork system includes the supply and return air ducts, registers, and diffusers in each room. Air duct cleaning services have powerful vacuums to whisk away all the dust and debris from the air duct system. This will prevent the dust and debris from re-circulating throughout your home.


Here are some of the many benefits of regular air duct cleaning in your home:

A Clean Living Environment

Professional air duct cleaning will leave your home clean and reduce the dust that circulates throughout the house. The dust that circulates throughout the home may land on the bedding, furniture, flooring, and just about everything in your home. Regular air duct cleaning will reduce the amount of work you need to do to maintain a hygienic home over time.

A Home Free Of Allergens And Irritants

The air duct system circulates harmful contaminants and micro-organisms in addition to dust. Some of the harmful contaminants circulating inside your home include pet dander, mildew, mold spores, pollen, bacteria, and similar toxins. If you are suffering from asthma, respiratory illnesses, and allergies, you shouldn’t inhale these contaminants. Regular professional air duct cleaning helps you get rid of these contaminants and secure the living space.

You Can Breathe Easy

Cleaner air makes it easy for everyone to breathe. Even though you may not have asthma or allergies, dust and other contaminants in the air can make your breathing difficult. These contaminants may trigger coughs, sneezing, sinus, and bronchial congestion even in the healthiest person. Regular air duct cleaning will create a more comfortable living environment for you and your loved ones. That’s why you need to choose a professional air duct cleaning service in the area.

Get Rid of Unpleasant Smells And Odours

Household cleaning items, mold, paint fumes, pets, food preparation, and tobacco may contribute to stale smells in the air duct system. Every time you operate the air conditioner or furnace, stale smells and odors can circulate in your house. The accumulation of dirt and dust over time can lead to a musty scent coming from the ductwork system. Professional air duct cleaning helps remove all the odour-trapping particles and results in a cleaner and fresh air in your home.

Better Air Flow Efficiency

When the ductwork system in your home has a heavy buildup of grime and dust, it may restrict the airflow in the house. The HVAC system will have to work harder to make the house comfortable. A clean HVAC system will operate at peak efficiency and reduce your energy bills in the long run.

Air duct cleaning Demo Video