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Your home has a network of ducts running through the walls and under the floors that connect to and from your central air conditioning and heating system. If there’s dust and grime in your house, it’s probably in your ducts and in the air, you breathe.

It is your responsibility to clean air ducts regularly to prevent them from being clogged with debris, dust, and other contaminants that enter the air. Although it isn’t something that needs to be done frequently, when the time comes to have your system cleaned, you may be concerned about the cost of air duct cleaning.

Average Cost of Air Duct & HVAC Cleaning Services

Duct cleaning costs on average $376, ranging from $269 to $489. Most HVAC repairs cost $144 to $451 on average, with minimum service call prices of $75 to $200. If you’re not sure what’s wrong, an HVAC diagnostic will set you back about $89, while a tune-up will set you back about $100.

To assist boost system efficiency, clean your ducts every 5 to 7 years or as needed. The price is affected by the size of your ductwork, the number of vents, the level of pollution, and the convenience of access. HVAC contractors charge $75 to $150 per hour, with a $75 to $200 minimum emergency HVAC services call cost that is applied to the first hour.

Factors to Consider When Estimating Cost

We recommend obtaining multiple air duct cleaning price quotes and discussing with each business what they plan to accomplish throughout the cleaning process. The following are the factors that influence air duct cleaning costs:

Size of Ductwork

The cost of air duct cleaning is determined by the size of the duct and HVAC. Professional air duct cleaners usually charge by the vent or by the square foot. Cleaning ducts cost between $25 and $50 per vent. The HVAC system is connected to each room through ducts through each vent. It will cost between $0.15 and $0.25 per square foot if the professional charges by the square foot. Cleaning an HVAC system might cost anywhere from $300 to $700 on average.

Number of Furnaces & Air Conditioning Units

The more furnaces you have, the higher your costs will be. Each extra heater and ducting installation will cost around $400 on average. Although uncommon, you’ll frequently encounter this in homes with additions where the original furnace was incapable of heating the addition as well.

HVAC Mold and Mildew Removal

$600 to $2,000 for skilled mold removal on top of the regular cost of cleaning the ducts. Removing these components takes more time, requires specific equipment, and even requires special chemicals. If the mildew and mould are serious enough, you may be sent to a professional.

Residential vs. Commercial Duct Cleaning Cost

Residential duct cleaning is less expensive than commercial duct cleaning. While home services may cost $20 to $40 per vent, commercial projects cost at least 30% more and cost at least $35 to $50 per hour. Because businesses differ, you’ll need a quote to determine how much you’ll pay.


Many homes include entrance ports to the air duct system in the basement or utility room. If there are difficult-to-reach locations in the attic or narrow crawl spaces, there may be an additional price. The total cost will vary based on the job scope, location, and air duct cleaning firm.

HVAC & Air Duct Cleaning Costs by Location

The cost of air duct cleaning is also affected by your location. Here are some rates for emergency HVAC services in major cities.

City, StateAverage cost
Parker, CO$325 – $750
Highland Ranch, CO$325 – $775
Aurora CO$325 – $775
Littleton CO$300 – $725
Lakewood CO$300 – $725
City of Commerce CO$375 – $875
Westminster CO$325 – $775
Thornton CO$400 – $925
Centennial CO$400 – $950
Brighton CO$325 – $750

Service Prices for HVAC Duct Cleaning

Many air duct cleaning businesses base their charges on individual treatments, while others provide packages depending on the number of vents or square footage. The following estimates will help you get a sense of what to expect in terms of pricing for certain services.

Costs of Emergency HVAC Services

At $140 to $210 per hour on the low end and $400 to $600 on the high end, HVAC emergency services are often twice or treble the standard charge for a service call. For after-hours and weekend appointments, some HVAC professionals simply charge an additional $40 to $80 per hour.

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