How Is AC Duct Cleaning Performed?

September 22, 2022

You are not alone if you are curious about how air duct cleaning is performed in your home. This article will discuss the cost and procedures for cleaning air ducts. We'll also look at preventative methods to help keep your house’s air quality in check.

Cleaning of air ducts


You should have your duct system cleaned if you want to improve the air quality in your home. These systems can be installed in the attic or beneath the ground. A service provider cleans these systems by using specialized instruments and vacuuming them. Cleaning your duct system, regardless of size, can significantly enhance the air quality in your home.

To begin, a technician activates the vacuum and closes the supply registers to maximum negative pressure. He will next start cleaning the ducts, vent by vent. He will use revolving brushes and compressed air whipping equipment to accomplish this. Both the supply and return ducts will be cleaned by the specialist.

Many health professionals recommend air duct cleaning for a variety of reasons. It is critical to avoid exposure to airborne allergens, which are hazardous to human health. While a modest quantity of dust is usual in a home, allergens can be present in large concentrations in the air. According to the EPA, indoor air pollution is one of the top five public health threats.

Investigate the state of your ducts before hiring a professional to clean them. Examine the surface for tiny dust and discoloration. Remove the lid and clean off the duct’s interior with a moist rag if you feel excessive dust. Contact the service provider immediately if the dust is considerable or discolored.

Many air duct cleaning companies employ a chemical biocide to eliminate bacteria and fungi. They may also recommend encapsulating or closing the ducts to prevent accumulation. Before signing a contract, make sure to ask about the benefits and drawbacks of these options. Chemical biocides can be helpful and even necessary in some cases, but they can be hazardous to your health.



A vacuum cleaner is one of the most prevalent methods of cleaning AC ducts. To remove dirt and grime from the ducting, use a long vacuum hose and a rotary brush. The brush removes dust and dirt as the hose rotates and feeds them back through the ducts. This procedure is not advised for people who have asbestos in their ductwork. While it eliminates a substantial quantity of dirt and grime from the air system, it can result in uneven cleaning and residue.

The first step in cleaning air ducts is to inspect the ducting. It is critical to locate any fractures or holes that let dirt and debris into the system. Professional AC duct cleaning services have the tools and equipment to clean the system thoroughly. Air whipping devices, brushes, and compressed air nozzles are examples of these instruments.


Dirt can collect in the air ducts following significant restorations and constructions. Even though most of this dirt is innocuous, it contains particle debris that, if not properly cleaned, can cause health concerns. The most serious offender in this regard is drywall dust. This hazardous material contains drywall chemicals and can cause respiratory irritation.



The cost of AC duct cleaning varies according to your size and home type. Smaller homes often have fewer vents, whereas larger homes typically have many more. Furthermore, ductwork in larger homes may be more flexible and prone to damage than ductwork in smaller ones. As a result, the costs will be higher. The position of the air handler, in addition to the size of the ducting, will impact the price.

A larger house will almost certainly have more ducting, raising the expense. The ductwork in a typical home will be between four and five hundred square feet.

It is critical to clean your ductwork for your health. Allergens and dust particles in the air can cause significant respiratory difficulties. Furthermore, clogged ducts circulate toxins throughout your home. This is a significant health risk for persons who have respiratory diseases because it can contribute to other health issues.


Preventative actions

Whether your HVAC system needs cleaning or you've noticed mold, you should take precautions. Cleaning your air ducts will keep them as clean as possible while also assisting you in improving the quality of your air. A clean system will also minimize your chances of acquiring allergies and asthma.

Air from your air conditioning system must pass through ductwork, and dirt and grime in these locations can cause respiratory and other health problems. If your ducts are dirty, they will most likely transport scents and dead rodents. If your ducts are not cleaned regularly, debris can build up over time, making them difficult to keep clean and sanitary.

Cleaning the ducts at least twice a year will keep dust from the building. Even tiny dust might clog them and allow toxins to enter. This can result in mold and other issues. HVAC contractors should also ensure that the ducts are sealed during construction to avoid dust entering the residence. It's also a good idea to have your furnace and air conditioner examined and cleaned by a technician throughout the summer. These systems will survive longer if they are in good shape.

Despite advances in modern technology, dust still finds its way into a home's ductwork. Mold, mites, and dangerous germs can thrive in dusty environments. If you don't have the time to clean your ducts, contact a professional to do it for you.

Insects and rodents

There are several methods for determining whether or not insects or rodents are present in your air ducts. To begin, you should inspect the outside vents. These vents should be protected from insects and rodents by a barrier. If you see a damaged or loose wall, it could be an indication of rat activity in your ducts. You can also look for blowflies in the vent itself. This pest congregates around dead animals.

If you discover that rats or insects have entered your air ducts, you must eliminate them as soon as possible. These creatures can transmit diseases through their body waste and bites. Turn off the HVAC to keep these rodents from contaminating the air in your home.

Professional exterminators remove these pests. They will use an insecticide to get rid of them in your house. You may also keep them at bay by performing routine maintenance on your heating and cooling systems. Spiders can also enter your home and ducts if not adequately cleaned. They are hazardous to one's health and might induce allergic reactions and respiratory difficulties.

The odors that insects and rodents emit make detecting their presence in your ducting easy. These insects and rodents can cause various health difficulties, including asthma, respiratory disorders, and even death. Furthermore, their waste attracts flies and beetles. These pests in your ducts are detrimental to your property and your family’s health.

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