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Air Duct Cleaning

Removing contaminants is the first step to a healthier home. A full system duct cleaning will benefit the health of everyone who lives in the home and improve the functionality of your HVAC system. How do we do it? The process is simple and explained below.

“Source Removal” is the most known process in the duct cleaning industry. Each house has a slightly different type of ductwork. We curate each job with the appropriate tools and processes needed to ensure the best results for your home.

Our Air Duct Cleaning Process
  1. Our techs will begin by masking your vents to ensure each side of the system is isolated to maximize airflow with our negative air machine.
  2. We will then create access holes in the return and supply trunk lines to insert our agitation tools. If there are previously existing access holes, we will use these. Don’t worry, all holes will be patched and sealed airtight when the job is complete!
  3. Next, our techs will start cleaning your ventilation system with our high-pressure air hose (125-175 psi) and agitation tools (air whips, directional nozzles, and rotary brush systems) towards the trunk lines. This removes dust and debris from the return and service duct vents.
  4. Contaminates that have been knocked loose by our high pressured air and agitation tools will be directed to the access points and pulled out of your home through our remarkably strong HEPA powerful vacuum. It pulls in air and debris at 5,000 CFM (cubic feet per minute) and re-distributes high quality, clean, odor-free air back into your home.
  5. The furnace housing, return drop, blower wheel, A-coils, and filter compartment will all be air washed as well.
  6. As we previously mentioned, once your system is cleaned and approved, it will be re-sealed per NADCA standards.

    Our entire cleaning process follows NADCA standards. We clean the full system, not just partially, full returns with return trunk lines, full supply lines with supply trunk lines. We also clean the blower wheel, filter compartments, and the return drop.

Dryer Vent Cleaning

The National Fire Protection Association (NFPA) recommends having a professional clean your dryer vent once a year to prevent a potentially deadly house fire. Prevention is not only better than repair but also better than potential despair. We offer comprehensive dryer vent cleaning throughout Minnesota. Our technicians can remove everything -- lint, debris, nests, foreign objects, and other “unknown clogs” from your dryer vent. Our dryer vent cleaning services prevent fires and promote safety. It also helps your dryer to operate at its highest potential, with loads drying faster! You’ll have peace of mind that your dryer is running more efficiently and safely!


Dirt, debris, lint, and more accumulate in your dryer vent which causes clogs that can eventually lead to severe machine overheating, failure and even a house fire. According to “The National Fire Protection Association (NFPA)”, 16,000 home fires are caused each year due to fires that originate in dryers. Lint is much more than an annoyance. It is a severe safety concern. Lint is a flammable material, so it’s critical to remove it from every crevice annually. Through our professional dryer cleaning services, we will remove fire hazards from your dryer’s line. This will improve your dryer performance and reduce your energy costs.

Air Conditioning Coil Cleaning

Why are clean evaporator coils important? As you may know, the A/C unit is an amazing and complex machine. It can help keep the air in your home comfortable, even in the hottest months of summer, as long as it’s well maintained. To prevent dirty evaporator coils from slowing an AC system, they should be cleaned regularly.


During the cleaning process, a combination of our high-pressure air and tools will remove small amounts of debris from your air conditioning coils. Then we utilize special cleaning solutions to remove the remaining “dark matter” from your coils. Industry-standard tools such as a foaming coil cleaner, steam cleaners, and more will be used to make your coils shine bright like a diamond. Our trained technicians will use the top of the line equipment and industry gold standard techniques to clean your A/C unit’s coils.

This improves efficiency, resulting in reduced energy costs for your home.

System Fogging

It doesn't matter how much cleaning is done, there will always be a chance of the unknown in your system.

Odors and microbes can remain present in your home even after all the dust, dirt, and other contaminants are gone.

We recommend having your air ducts cleaned every 3-5 years.

Why do I need a system fogging?

Although studies have struggled to provide total efficiency, we can attempt to help contain this problem using our new innovative one-step disinfectant cleaner, specially formulated to fog and disinfect your entire duct system.

Benefect Decon 30

Benefect Decon 30 is a hospital-grade, antimicrobial decontaminant, and deodorizer. It is pet safe and kills up to 99.9% of bacteria. There is no need to vacate your home. We recommend fogging your system with every air duct cleaning job if the surface is non pourus. More information about Benefect Decon 30

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Gray Duct Technologies

6100 McColl Dr, Unit 214

Savage, MN 55378