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Fruitland Park - Serving Lake,
Sumter and South Marion

Duct Cleaning FAQ

Are there any health benefits that come from HVAC system cleaning?

Heating, ventilation and air conditioning (HVAC) systems can collect contaminants like mold, fungi, bacteria, and very small particles of dirt and dust which can affect overall health, especially for people with respiratory conditions, autoimmune disorders or certain environmental allergies. The removal of these contaminants from your HVAC system and home should be part of an overall plan to improve indoor air quality.

How can I determine if the HVAC system cleaning was effective?

The best way to determine if an HVAC system cleaning was effective is to perform a visual inspection before and after cleaning. If any dust or debris can be seen during the visual inspection, the system should not be considered clean. While you can perform your own inspection using a flashlight and mirror, a professional cleaning contractor has better access to system components.

How often should residential HVAC systems be cleaned?

Frequency of cleaning depends on a variety of factors, not the least of which is the preference of the homeowner, but things that should lead homeowners to consider more frequent cleaning include:

  • Smokers in the household
  • Pets that shed large amounts of hair and dander
  • Water contamination or damage in the home or HVAC system
  • Residents with allergies or asthma
  • After home renovations or remodeling
  • Prior to occupancy of a new home

How should a residential HVAC system be cleaned?

The most effective way to clean air ducts and ventilation systems is to employ source removal methods. This requires a contractor to place the system under continuous negative pressure, creating a vacuum that prevents the spread of contaminants. While the vacuum draws air through the system, devices are inserted into the ducts to dislodge any debris that might be stuck to interior surfaces. The debris can then travel down the ducts to the vacuum which removes it from the system and your home.

What are antimicrobial chemicals and why would they need to be used?

Some companies apply antimicrobial chemicals to the interior surface of the air ducts in order to treat microbial contamination such as fungi (mold), viruses or bacteria. Before any antimicrobial chemicals are used, the system should be thoroughly cleaned. It is critical that any antimicrobial treatment used in your system be registered by the U.S. Environmental Protection Agency (EPA) specifically for use in HVAC systems. The use of antimicrobial chemicals is an additional service that is not part of a typical air duct cleaning project.

What criteria should I use when selecting an HVAC system cleaning contractor?

You should interview as many local contractors as possible. Ask them to come to your home and perform a system inspection and give you a quote. To narrow down the pool of potential contractors, use the following pre-qualifications:

  • Make sure the company is a member in good standing of NADCA.
  • See if the company has been in business long enough to have adequate experience.
  • Get proof that the company is properly licensed and adequately insured.
  • Verify that the company is certified by NADCA to perform HVAC system cleaning.
  • Make sure that the company is going to clean and visually inspect all air ducts and related system components.
  • Avoid advertisements for “$99 whole-house specials” and other gimmicks.
  • Ask if the company has the right equipment to effectively perform cleaning and whether the company has done work in homes that are similar to yours.
  • Get references from neighbors if possible.

What is the normal price range for the air duct cleaning service?

The EPA states that “duct cleaning services typically – but not always – range in cost from $450 to $1,000 per heating and cooling system, depending on the services offered, the size of the system to be cleaned, system accessibility, climactic region and level of contamination” and type of duct material. Consumers should beware of air duct cleaning companies that make sweeping claims about the health benefits of duct cleaning as such claims are unsubstantiated.

Consumers should also beware of “blow-and-go” air duct cleaning companies. These companies often charge a nominal fee and do a poor job of cleaning the heating and cooling system. These companies may also persuade consumers to pay for unneeded services. If you have knowledge of a practicing “blow-and-go” air duct cleaner, contact your local Better Business Bureau to report the company.

What is the normal price range for the air duct cleaning service?

The EPA states that “duct cleaning services typically – but not always – range in cost from $450 to $1,000 per heating and cooling system, depending on the services offered, the size of the system to be cleaned, system accessibility, climactic region and level of contamination” and type of duct material. Consumers should beware of air duct cleaning companies that make sweeping claims about the health benefits of duct cleaning as such claims are unsubstantiated.

Consumers should also beware of “blow-and-go” air duct cleaning companies. These companies often charge a nominal fee and do a poor job of cleaning the heating and cooling system. These companies may also persuade consumers to pay for unneeded services. If you have knowledge of a practicing “blow-and-go” air duct cleaner, contact your local Better Business Bureau to report the company.

What kind of equipment is best for cleaning – truck-mounted or portable vacuums?

NADCA does not endorse one kind of equipment over the other. There are two main types of vacuum collection devices: truck/trailer-mounted and portable units. Truck/trailer-mounted equipment is generally more powerful, but portable equipment can often be brought directly into a facility, allowing the vacuum source to be located closer to the ductwork. Both types clean to ACR (Assessment, Cleaning and Restoration), the NADCA standard. All vacuum units should be attached to a collection device for safe containment prior to disposal. Any collection device that exhausts indoors must be HEPA filtered. A vacuum collection device alone will not get an HVAC system clean. Methods and tools like brushes, air whips and “skipper balls” which are designed to agitate debris that is adhered to surfaces within the system, in conjunction with a vacuum collection device, is required to clean HVAC systems.

Why should I choose a NADCA member to have my air ducts cleaned?

NADCA members have signed a Code of Ethics stating they will do everything possible to protect the consumer and follow ACR, the NADCA Standard, for cleaning. Air duct cleaning companies must meet strict requirements to become a NADCA member. Among those requirements is that all NADCA member companies must have on their staff a certified Air System Cleaning Specialist (ASCS) who has taken and passed the NADCA certification examination. Passing the exam demonstrates extensive knowledge in HVAC design and cleaning methodologies. ASCSs are also required to further their industry education by attending seminars in order to maintain their certification status.

Will HVAC system cleaning reduce our home energy bills?

Research by the EPA has demonstrated that HVAC system cleaning may allow systems to run more efficiently by removing debris from sensitive mechanical components. Clean, efficient systems are less likely to break down, have a longer life span, and generally operate more effectively than dirty systems.

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M&S Air Conditioning & Appliance Service of Central Florida LLC

2468 S US Hwy 441/27
Suite 513
Fruitland Park, FL 34731

S Lake / Sumter: (352) 314-5004
S Marion: (352) 307-6722
S Lake: (352) 241-4780
FAX: (352) 314-5012

License: CAC1814193


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