Hey Flower Mound, Tx Is Your Current HVAC Duct System causing breathing issues for your family?
Do you or your kids wake up with a stuffy nose? Have you noticed that you feel sick in the morning and as soon as you step outside of your house you start feeling better almost immediately? Did you know that these could be symptoms of bad indoor air quality resulting from bacterial build up in your duct system?
The average age of houses in Flower Mound, TX, is an average of 20-30 years for many neighborhoods throughout the city. A significant amount of houses were built from the 1990s onward, especially the 1990-1999 decade. Several homeowners throughout Flower Mound, Tx has advised that the air conditioning system in their home has been changed 1 time many 2 times since their home was built. However, when asked how many times they have changed their duct system our Flower Mound homeowners stay silent as they realize they have never been replaced.
Behind your walls and ceilings lies a network of ducts that deliver warmed or cooled air to each room. When the ducts are damaged or contaminated, it can undermine comfort, worsen indoor air quality and drive up energy bills. Replacing an entire HVAC duct system may sound like a big project, but for many homes it’s the most effective way to stop allergy‑inducing contaminants and uneven temperatures. Here at Frosty's HVAC we will explains why full duct replacement matters, how bacterial growth inside ducts affects health, why duct cleaning alone is not enough, when you should consider replacement, and the benefits of installing new, properly sealed ductwork.
Why is it important to replace my HVAC Ducts?
Your HVAC ducts act as the lungs of your home, moving conditioned air from the furnace or air conditioner to every room. About 20–30 % of the air that moves through ducts gets lost through leaks, holes and poor connections. Air leakage will force your HVAC system to run longer without properly cooling or heating your home. Air duct leaks can lead to higher utility bills and rooms that feel stuffy or make it hard for you to breath. When ducts run through unconditioned spaces such as attics or crawl spaces, they can also pull in dust, insulation fibers and even fumes. A well‑designed, properly sealed duct system is essential for comfort, efficiency and healthy indoor air.
What Are The Signs That You Need To Replace Your Duct System?
​
Most HVAC duct systems last around 10–15years, with good materials and maintenance. Over time, the seals, joints and seams deteriorate, causing leaks and reducing efficiency. Old ducts are also more likely to harbor dust, pests and bacterial growth. If your ductwork is over a decade old, schedule a professional inspection; newer systems use improved materials and sealing methods that enhance performance.
You should consider full duct replacement if you notice the following hvac system issues:
-
Poor airflow or uneven temperatures – If your airflow is weak or inconsistent there could be damage or blockage in your ducts; replacing damaged ducts restores airflow and comfort.
-
Declining indoor air quality – Persistent dust, musty odors or allergy symptoms suggest that contaminants are being distributed through the system. Replacing old ductwork can improve air quality and create a healthier environment, especially for households with children, pets or allergy sufferers.
-
High energy bills and stuffy rooms – According to Energy STAR®, a home with leaky ducts may lose 20–30 % of conditioned air, leading to higher utility bills and rooms that are difficult to heat or cool. New, properly sealed ducts improve efficiency and comfort.
-
Visible damage or contamination – Rust, crushed sections, disconnected joints or visible slime/bio‑growth are signs the ducts are compromised. The NIH suggests replacing ducts when there is persistent water damage or microbial growth inside.
-
Persistent odors or vermin – Offensive odors or evidence of rodents and insects indicate that contaminants are in the ductwork and removal may be the safest solution.
​
Due to material limitations some duct materials cannot be effectively cleaned. The EPA notes that insulated air ducts that become wet or contaminated cannot be fully cleaned and should be replaced. The DOHS fact sheet adds that wet or microbial‑contaminated fiberglass duct board should be removed. Replacing this type of ductwork with modern, smooth metal ducts or antimicrobial liners prevents future contamination and improves airflow.