How Much Does Air Duct Cleaning Cost? (2025 Guide)

Air duct cleaning is a common topic among homeowners, with many wondering if it’s truly necessary – or even if it’s a scam (it’s not). While routine duct cleaning isn’t typically necessary, the U.S. Environmental Protection Agency (EPA) recommends considering it in certain situations. These include visible mold growth inside your ducts, signs of vermin infestation, or a significant buildup of dust and debris.

If you’re experiencing any of these issues and are thinking about scheduling a cleaning, you’re likely wondering: how much does air duct cleaning cost? HVAC.com breaks down the average costs and the key factors that influence the price.

Cost to Clean Air Ducts

The average cost of duct cleaning is between $450 and $1,000 per heating and cooling system in an average-sized home, according to the EPA.

Factors that Affect the Cost of Duct Cleaning

The Size of the System

Larger homes naturally have more ductwork which takes additional time to clean, leading to higher costs. Homes with more supply and return vents will also require more time and materials to clean.

Contamination Level

How dirty or contaminated are your air ducts? The answer can significantly impact the cost to clean ductwork. While a typical air duct cleaning service can handle contaminated ducts, severe mold growth or large-scale infestations (of rodents or insects) will likely require specialized treatments which will add to the overall costs. If you have insulated air ducts and the insulation gets wet and moldy, removal and replacement is the only option.

System Accessibility

If your air ducts are located in hard-to-reach areas – such as tight crawlspaces or attics – or if they have long runs or multiple bends, the cleaning process can become more complex and time consuming, resulting in higher labor costs.

Type of Ductwork

The type of ductwork in your home (sheet metal ducts, flexible ducts, etc.) can affect the cleaning method and equipment used, which can impact pricing.

Geographic Location

The cost of duct cleaning can vary based on where you live. The service may cost more in areas with a higher cost of living and more demand for duct cleaning compared to rural areas.

Additional Services

Leaks and damage can result in ducts becoming dirty, causing moisture, pests, and debris to enter more easily. If the ducts need to be sealed, repaired, or replaced, expect to pay more.

How to Avoid Duct Cleaning Scams

While most duct cleaning services are legitimate, some companies use scare tactics or offer “too-good-to-be-true” deals to try and lure customers. Here are a few tips to help you avoid scams:

• Be wary of extremely low prices. Advertisements offering whole-home duct cleaning for $50-$100 are often bait-and-switch tactics. 
• Ask for credentials. Make sure the company is certified by the National Air Duct Cleaners Association (NADCA).
• Get a written estimate. A trustworthy provider will inspect your system and give you a detailed quote before beginning any work.
• Avoid high-pressure sales. Scammers may claim to find mold or other urgent issues that require expensive add-ons. If this happens, get a second opinion, especially if you haven’t experienced issues such as musty smells, excess dust, or scratching from rodents.
• Check reviews and references. Look for verified customer feedback on Google, Yelp, or the Better Business Bureau (BBB) website to ensure the company has a solid reputation.