How Much Does Air Duct Cleaning Cost in Denver? [2025 Data]

Air duct cleaning costs in Denver average $312, and most residents pay somewhere between $239 and $403 for the service. Pricing depends mostly on your home’s square footage and the layout of your duct system, but accessibility, the type of ducts you have, and the time since your last cleaning can affect costs, too. Above-average living costs in Denver contribute to slightly higher costs per hour.

Air Duct Cleaning Cost Factors

Air duct cleaning doesn’t require any materials, so the majority of your total will go toward labor. Anything that makes the job take longer, like more vents to clean or limited accessibility, will affect your pricing accordingly.

Total Square Footage of Vents

The more ductwork you have, the more you'll pay for cleaning. Some local air duct cleaners base their price on the property’s square footage since the larger your home is, the more ductwork you'll have.

The cost of cleaning ductwork is $0.15 to $0.30 per square foot. The average home size in Denver is just under 1,600 square feet, which is below the national average. Cleaning ducts in a typical home in Denver will cost between $240 and $480 based on the square footage. Here’s a breakdown of the average air duct cleaning costs based on the size of your home:

Number of Vents

Some air duct cleaning companies in Denver charge based on the number of vents they need to access and clean. As with ductwork, the more vents you have, the more it’ll cost to clean them. On average, vents cost $35 each to clean, with most homeowners paying between $25 and $50 per vent. To get a ballpark estimate for the cost of vent cleaning, count the vents in your home and multiply that by $35.

A general rule of thumb for HVAC systems is one supply vent for every 100 to 150 square feet of living space. The average home in Denver is 1,600 square feet and will have between 10 and 16 vents. If your pro charges by the vent, expect to pay an average of between $350 and $560.

Here’s how the number of vents affects your air duct cleaning cost:

Type of Ductwork

There are four types of ducts that are common in homes, and the type you need cleaned can affect your costs. The average home in Denver was built in 1987, and by that time, metal sheet ducts were the most common. These are also among the easiest and most affordable to clean, and they’re the least likely to need expensive duct repairs.

Flex ducts are uncommon in Denver homes because they’re the least efficient and can lead to higher utility bills in the hot summers and cold winters. However, they are useful for routing ductwork through attics and other tight spaces where rigid ducts are unrealistic. If you have flex ducts, expect to pay toward the upper end of the range. Unlike metal ducts, flex ducts require special cleaning equipment, so you’ll pay more to clean them.

Labor Cost

Most ductwork pros charge by the hour, with duct cleaning services in Denver priced between $110 and $160 per hour. The hourly cost for labor in Denver is going to be higher than it would be in most other cities because the cost of living in Denver is around 25% higher than the national average. Depending on the size of your home, the type of ductwork you have, and how accessible the ducts are, most cleaning jobs require three to eight hours of labor.

Accessibility

If you ensure that vents are easy to reach with vacuuming equipment, accessibility shouldn’t be a problem. But some ductwork designs make accessing them difficult, especially if you don’t have floor vents. If air duct technicians have to work harder or take additional steps to reach your vents, it can result in additional labor charges. A simple way to maximize accessibility is to make sure your air vents aren’t blocked before your tech arrives.

Inspections

Some vent problems, like noticeable mold or nests, don’t require an inspection before cleaning. However, if you aren’t sure about the state of your vents, consider arranging a professional inspection. These inspections are often bundled together as part of an HVAC inspection, which costs an average of $300 but can fall under $100 for simple systems.

Level of Cleanliness or Contamination

Duct cleaning is offered as a package with set labor costs, but extremely dirty jobs will cost extra. If the ducts have never been cleaned and need a lot of work to remove dust and buildup, expect additional fees.

Higher pricing due to unusually dirty or clogged vents is more common in Denver, where the air quality index is below average and the EPA reports high levels of air contaminants from pollution, pollen, and wildfires. In most cities, a duct cleaning every three to five years will suffice. In Denver, you should aim for a service every two to four years for the healthiest indoor air.

Air Duct Cleaning Pro Costs

An average of between 90% and 95% of your total will go toward labor when you schedule air duct cleaning services, which means between $280 and $300 in Denver. The above-average cost of living in the city contributes to higher per-hour costs for labor, so this is more than you’d pay in most other cities.

Hiring a professional also means you’ll be subject to sales tax, so budget for that, too. The sales tax rate in Denver is 9.15%, including state and city taxes, so expect to pay an average of $28.55 in sales tax.

Does Air Duct Cleaning Increase Home Value?

Air duct cleaning is considered a routine maintenance task, so it won’t have any positive impact on your home value. However, it could serve as a minor selling point for buyers, especially if it gives them the impression that you’re proactive about maintenance for all systems in your home.

While there’s no real financial return on investment with air duct cleaning, the service will provide cleaner indoor air for you and your family, which is well worth the cost of duct cleaning.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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