When it comes to HVAC maintenance, repairs are an essential part of the program. Depending on the scope of work, replacing air ducts may require permits and repairs that can increase the total cost. The total cost of replacing ductwork depends on a variety of factors, such as the size of the house, the location of the ductwork, the number of ductwork, the type of ductwork, and insulation. To replace air ducts yourself, you will need metal sheets, hooks and straps, vent caps, duct sealant, insulation and adhesive tape.
It is important to know the right combination of duct sizes to use throughout the system based on factors such as the volume of air the fan moves and the length of the duct. Metal ducts are expected to last 20 to 25 years, while flexible ducts typically have a lifespan of 10 to 15 years. Installers spray this sealant onto the inside of ducts to create a ¼ thick rubber coating that completely covers, seals and restores old ducts. Basic repairs include fixing a leak, replacing a vent, or replacing small sections of ductwork or insulation. Duct contractors recommend cleaning, repairing, or encapsulating the mezzanine floor before installing new ductwork.
Duct insulation reduces energy bills by 10% to 40%, prevents condensation and makes ducts last longer. Duct installers use different types of ductwork depending on location, building codes, and HVAC system requirements. We have found that projects such as additional repairs may be needed before or after the installation of air ducts either in the ducts themselves or in other aspects related to the installation are often related to HVAC ductwork or other home improvements or repairs closely related to this type. In general, while cleaning and repairing air ducts extend their lifespan, they usually need a major replacement every 15 years to function properly. Whether it's repairing a hole in a duct or replacing an entire section of the system, it is important to consider all factors when determining how much it will cost to replace air ducts.
