You can contact AC companies for all sorts of reasons. You might get in touch with one because you want them to remove an old or malfunctioning furnace or AC unit. They can install a new one in its place. 

You might want them to do yearly maintenance on your AC unit or furnace. You should get this done every year without fail. 

You may also contact an HVAC company because you think there could be a blockage in your ductwork, though. If that happens, you’re not going to be able to get the full heating or cooling effect from your furnace or air conditioner. You will also not get the fresh air pumped through the house that your ductwork should provide. 

Let’s talk about how your ductwork can get blocked right now. 

Your Kids Stuck Something Down There 

If you talk to an HVAC repair person, they probably have all kinds of funny stories about how and why ductwork gets blocked. Many times, they will tell you that what happened is due to humans sticking something in the ductwork which has impeded the flow of air. 

If you have a young child or some young children in the house, you’ll likely know they can get into all kinds of mischief. This is normal. They’re just doing the sorts of rambunctious things that inquisitive children do. 

If you have a loose vent somewhere in the house, your kids might have learned that they can shove items down the ductwork. If they stuffed a few shirts or a couple of pairs of pants into a vent, and these items got stuck in there, you should quickly notice that one part of the house is not getting the heating or cooling benefits from the ductwork that the rest of your home is getting. 

Animal Activity 

The ductwork in your walls is dark and narrow. It’s nowhere a human would like to go, but it’s ideal for critters like possums, raccoons, rats, squirrels, and other pests. 

Mammals like hiding in ductwork, and some of them try building nests in it too. If you live close to some woods, and you notice that part of your ductwork seems clogged in the wintertime, it could be that you have some uninvited guests that have taken up residence in your home. 

An HVAC company can probably locate the blockage if an animal is nesting in there. What they likely won’t want to do is go in after it and shoo it away. 

In these circumstances, you won’t just need an HVAC company but probably an exterminator as well. You need the animal gone to get rid of that blockage.