• What is Air Duct Cleaning?

Air duct cleaning refers to cleaning the inside of a ventilation system inside a home, office, commercial, or industrial building.  There are several types of air ducts varying in size as well as materials used and span throughout the building, delivering heating and cooling, year-round.

Are there any health benefits that come from HVAC system cleaning?


HVAC (Heating, ventilation, and air conditioning) systems have been shown to act as a collection source for a variety of contaminants that have the potential to negatively affect health, such as mold, bacteria, fungi, and very small particulates of dust. The removal of such contaminants from the HVAC system and home should be considered a top priority to improve indoor air quality.


  • Why should I have my air ducts cleaned?

Over time, molds, dust, dirt, dander and allergens gather in your HVAC system and continue to circulate. Cleaning your system will produce clean healthy air circulating inside your home or commercial building.  Besides breathing cleaner air, you will also save energy and have your AC system and furnace last longer with fewer breakdowns. Finally, reducing dirt and dust will help keep your home or building cleaner.

  • How often should I have my HVAC system cleaned?

The US Department of Energy recommends you check and or clean your blower motor and air conditioning coils once a year. Dirti Ducts suggests cleaning your entire HVAC system air handler, evaporator coil, condenser coil, air ducts, and exhaust ducts and unit once every three to five years depending on how many inhabitants there are in the home including pets. Some of the things that may lead a home owner to consider more frequent cleaning include:

• Smokers in the household.

• Pets that shed high amounts of hair and dander.

• Water contamination or damage to the home or HVAC system.

• Residents with allergies or asthma who might benefit from a reduction in the amount of indoor air pollutants in the home’s HVAC system.

• After home renovations or remodeling.

• Prior to occupancy of a new home.


The most effective way to clean air ducts and ventilation systems is to employ Source Removal methods of cleaning. This requires a contractor to place the system under negative pressure, through the use of a specialized, powerful vacuum. While the vacuum draws air through the system, devices are inserted into the ducts to dislodge any debris that might be stuck to interior surfaces. The debris can then travel down the ducts to the vacuum, which removes it from the system and the home.



How long does it take to have ductwork cleaned?

The amount of time it takes to clean a residential HVAC system depends on many variables such as the size of the home, the number of systems, the extent of the contamination and the number of HVAC cleaners performing the job. Dirti Ducts is one of the most thorough and time efficient duct cleaning companies in the business.  Because of the power of our equipment and the experience of our technicians we can get large amounts of work done quickly and efficiently.  Even so, your standard residential Air Duct Cleaning project will generally take between 3 to 6 hours to complete.  Commercial projects can sometimes take several weeks to complete. Our customers appreciate our efficiency as it limits any inconvenience or down-time.

Do I need to wait all day or do you give time frames for my appointment?

We will give you a 1 hour time frame to arrive at your home. We value and appreciate your time and being punctual is very important to us.

  • How skilled or trained is your HVAC cleaning staff?

All of our professional HVAC cleaners have had training that exceeds NADCA standards.  Our technicians are licensed to handle and recover refrigerants according to EPA regulations. This special training allows us to provide evaporator coil cleaning services because these units are sensitive and can leak refrigerants into the air.  They require a qualified technician to even attempt the job.

  • What is NADCA?

The National Air Duct Cleaners Association was formed in 1989 to institute industry standards and credentialing programs for the HVAC industry. The need for industry standards was addressed in 1992 with the adoption of performance-based standards that Dirti Ducts works to not only meet, but also exceed.

  • What is an air handling unit?

In Arizona the air handling unit is located inside the house.  In commercial buildings the air handler can be on the roof or in a mechanical room.  The air handler consists of the Evaporator coil, the blower, the drain pans, the heat exchangers, the filters, the burners and all the electrical components.   All of the components of an air handler need to be cleaned regularly and thoroughly to insure safety, ensure peak performance and improve indoor air quality.

  • Why should I have my air conditioning evaporator coils cleaned?

Your air conditioning evaporator coil sits behind a filter and looks a lot like a radiator which air passes through. Eventually dirt and grime clog the coil. This causes the air conditioning unit to run less efficiently using more energy. This places more pressure on the system causing mechanical breakdowns.

  • Do most duct cleaning companies clean the air conditioning coils in your system?

Air duct cleaning companies generally do not clean your furnace and air conditioning coils . Most do not even have the equipment, certifications, or training to do so. Some companies that do address coil cleaning just wipe off the surface and do nothing but make them “look” better. We not only thoroughly clean your air conditioning coils we do it for no extra charge as part of our service. It is very important to note that any company that does not clean your coils probably need to be more thoroughly researched as they probably to not have any certfications at all and most likely are not members of NADCA


  • Why is getting my dryer vent cleaned so important?There are several reasons why you should have your dryer vent cleaned at least once a year. Probably the most important reason you should have your dryer vent cleaned is they are the number one cause of household fires! If this is not reason enough to have your dryer vent cleaned here are some more reasons this is a great idea: Efficiency… a clean dryer vent allows the air to move freely from you dryer to the vent outside your house therefore reducing the resistance and maximizing the energy your dryer uses to operate!Life expectancy of your dryer… The harder your dryer has to work the more likely it is to quickly wear down the internal components therefore diminishing the number of uses you have before your dryer gives up!Carbon Monoxide… Gas dryers operating with little or no airflow to the outside exhaust will cause Carbon Monoxide to back up into your home!Peace of mind… By having your dryer vents cleaned you get to let your mind rest at ease knowing that you have reduced the risk of a house fire, allowed your dryer to work optimally, increased the life expectancy of your dryer, and kept potentially dangerous Carbon Monoxide fumes out of your home!


Arizona Registrar of Contractors ROC#302146

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