What happens if air ducts are not cleaned?

Author: Darwin Hettinger  |  Last update: Tuesday, July 8, 2025

Decreased Air Quality Your ducts attract and trap dirt, allergens, and pollutants. Once the ducts are clogged with those particles, your air will no longer be clean, which means you and your family will breathe in more of the contaminants. If you have dirty filters, the problem will be exacerbated.

What happens if I don't clean my air ducts?

However, air duct cleaning is critical to maintaining a working HVAC system. Dirty air ducts can make your heating and cooling system less efficient. If your air ducts stay dirty too long, they could wear your HVAC system out and break it. But even worse, dirty air ducts can endanger your health and wellbeing.

How do I know if my air ducts are dirty?

How to Tell if Your Air Ducts Need Cleaning
  1. Spikes in Your Energy Bill. Are you noticing an increase in your energy bill, but there's no explanation for the spike? ...
  2. Dirt or Dust Around the Vents and Registers. ...
  3. Mold. ...
  4. Your Facility Was Just Built or Has Undergone a Major Renovation. ...
  5. No Record of Prior Duct Cleaning.

Can dirty air ducts make you sick?

Develop Respiratory Infections, Disease

If your family is getting sick more than normal, experiencing coughing, sneezing, sore throats, runny noses, nasal congestion, headaches, and low-grade fevers, they may have upper respiratory infections as a result of dirty air ducts.

Does cleaning air ducts really make a difference?

Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and does not necessarily enter the living space.

What happens if you don't clean your air ducts?

How much does it cost to clean your air ducts?

According to the Environmental Protection Agency, the average cost for properly cleaning an entire air duct system in an average-sized home ranges from $450 to $1,000.

What are the drawbacks of duct cleaning?

Cons:
  • It's Not a Permanent Solution: Air duct cleaning is not a permanent solution to the problems in your ductwork. ...
  • It Can Be Expensive: Air duct cleaning can be expensive, especially if you have a large home with multiple ductwork systems. ...
  • It's a Mess: Air duct cleaning can be a messy process.

Is duct cleaning a waste of money?

Dust and other debris accumulates in ductwork over time, and duct cleaning is beneficial and even necessary under some circumstances. However, duct cleaning might be inconsequential when there is no severe duct system issue, according to the Environmental Protection Agency.

How much does Stanley Steemer air duct cleaning cost?

The offer price is most likely per vent pricing and does not factor in the cost of the entire cleaning. While it may seem like a money-saving deal, the final price tag will probably be closer to that $450-$1000 range.

Can I clean my ducts myself?

Use a brush to loosen any buildup of dust in the ductwork. Lift register and insert vacuum hose as far into the piping as it can go. Turn the vacuum on to capture as much dust as possible that the fan is pushing through the ductwork.

How long does it take to get air ducts cleaned?

Air duct cleaning takes anywhere between an hour and a full day (or more, in commercial HVAC systems cleaning). A standard air duct cleaning would be two to three hours and would cover the HVAC unit, the main return, the vents in the rooms and the air ducts themselves.

Is Stanley Steemer air duct cleaning worth it?

Clean ducts ensure smoother airflow, reducing energy costs. Extended System Life: Regular cleaning minimizes wear and tear on your HVAC system, potentially saving you substantial money on future repairs or the need for early replacement.

How do I know if I have mold in my air ducts?

Signs You May Have Black Mold in Your Air Ducts
  1. Musty Odors. If your bathroom doesn't have great ventilation and doesn't dry out after use, you may see little specks of mold growth on your drywall, ceilings, and in your shower. ...
  2. Black Dust. ...
  3. Increased Moisture. ...
  4. Visible Mold. ...
  5. Mold Sickness Symptoms.

How do I know if my ductwork needs to be cleaned?

5 Signs Your Air Ducts Need Cleaning
  1. Mold. While we all know how dust can negatively affect our health, mold is a whole different ballgame! ...
  2. Dust. ...
  3. Ducts are Infested with Rodents or Insects. ...
  4. Your Home was Just Built or has Undergone a Major Renovation. ...
  5. Rising Energy Costs.

What do dirty air ducts look like?

If there is dust, cobwebs, or dirt around the vents, you can be sure that it's in your HVAC unit and ductwork. As air passes through the vents, the dust can collect around blades and the edges. Every time the air circulates, more dust collects. The dirtier the vents, the dirtier the system.

Can dirty ducts cause AC not to work?

Uneven heating and cooling patterns – Dirty air ducts can also affect the distribution of air throughout your home. When ducts are clogged with dirt and dust, some rooms may receive less airflow, resulting in uneven heating and cooling. This means that your system has to work harder in some areas of your home.

Why is air duct cleaning so expensive?

One of the most significant factors influencing the cost of air duct cleaning is the size and complexity of your home's duct system. Larger homes with more intricate ductwork may require additional time, resources, and specialized equipment for a thorough cleaning.

How much does Servpro charge to clean air ducts?

Residential ductwork cleaning varies and can cost between $450 to $1,000. How long does it take for ductwork to be cleaned? Air duct cleaning should take less than an afternoon to perform, usually around two to four hours. However, the size and complexity of your system will determine how long the cleaning takes.

How much does 4 seasons duct cleaning cost?

Four Seasons Air Duct Cleaning

If you choose to go with Four Seasons duct cleaning services, you will pay between $600 and $750. This varies depending on the number of ducts that need to be cleaned, the square footage of your home, whether it is a basic cleaning or mold remediation is required, and other factors.

How not to get scammed by duct cleaning?

4 Tips to Help You Spot Duct Cleaning Scams
  1. Tip #1: Duct Cleaning Scammers Will Claim Specific Certifications. ...
  2. Tip #2: Duct Cleaning Scammers Typically Offer Extremely Low Discounts (For a Reason) ...
  3. Tip #3: Duct Cleaning Won't Immediately Improve Indoor Air Quality or Stop Health Issues.

What is the risk of air duct cleaning?

While the debate about the value of periodic duct cleaning continues, no evidence suggests that such cleaning would be detrimental, provided that it is done properly. On the other hand, if a service provider fails to follow proper duct cleaning procedures, duct cleaning can cause indoor air problems.

Does air duct cleaning include dryer vent?

What to Expect from a Professional Dryer Vent & Air Duct Cleaning. A professional air duct and dryer vent cleaning includes the cleaning of all the nooks and crannies of the ductwork and dryer hose from inside and outside the house with the right equipment and expertise.

Is it OK to never clean air ducts?

Not only does failing to clean your air ducts mean that your safety and well-being are at risk, but your HVAC systems will also fail to work properly.

Will my house be dusty after duct cleaning?

duct cleaning helps to eliminate the excess dust in home. Duct cleaning works by blowing out any dirt, dust, and debris trapped in the ductwork. If dust is constantly accumulating in your home, then there's likely much more dust sitting in your ductwork.

Do I have to move furniture for duct cleaning?

First and foremost, you should clear away any obstructions in or around your ducts that might make it difficult for us to access them. This includes things like moving furniture away from vents, removing any items stored near the registers themselves, and more.

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