Blog Layout

What You Need to Know About Biofilm in HVAC Systems

Bill Weavers • Oct 14, 2021

What You Need to Know About Biofilm in HVAC Systems

Biofilm forms when free-floating microorganisms adhere to a surface. In an HVAC system, coils and other moisture-filled areas where dirt and dust usually accumulate present an ideal breeding ground for microbial growth. In this post, a trusted HVAC repair and installation company discusses the effects of biofilm in your HVAC system and shares tips for preventing or eliminating it.

An advertisement for we beavers jr. heating and cooling

Effects of Biofilm

Biofilm is often found in industrial environments and can plague some mechanical systems. The buildup of slimy microorganisms in heating and air conditioning systems can affect the flow of heat across a surface. It can also contribute to the premature corrosion of the surface and the spread of bacteria, viruses and mildew throughout your living space.

How to Eliminate or Prevent Biofilm

  • Keep your coils clean. It’s important to perform routine heating and cooling services to maintain the cleanliness and efficiency of your air handlers. When there’s a buildup of biofilm on the coils, the unit will require more energy to adequately heat or cool the interior space. Schedule a maintenance visit at least once a year so that contaminants won’t have the chance to accumulate and go directly into the air you breathe. Installing ultraviolet lights over the coils is another effective way to kill bacteria and other harmful organisms.
  • Replace your air filters. Changing your air filters on a regular basis is essential for maintaining good indoor air quality. As a general rule, you should replace your filters every 30 days. Also, many disposable filters, like cotton-blend filters in cardboard frames, can become food for mold and bacteria over time, so it’s better to avoid these.


You can count on W.E. Beavers Jr. Heating & Cooling  for professional cooling and heating services in Woodbridge, VA. Whether you need a tune-up, repair or cleaning service, our skilled technicians have got you covered! Call us at (703) 897-5505  or fill out our convenient online form to   schedule an appointment.

A man and two women are sitting on a couch looking at a tablet ..

An HVAC Checklist for Homebuyers

By Bill Weavers • 20 Jun, 2022
Purchasing a home involves a lot of decision-making. As you evaluate residential properties, you’ll want to know the state that the heating and cooling system is in before you make a commitment. So before you put down a deposit or sign a contract, make sure you learn all you can about this essential home system.
A man is standing in front of a brick building holding a tablet and a toolbox.

HVAC Warranties: 4 Things Homeowners Should Look For

By Bill Weavers • 13 Jun, 2022
Suppose you’ve made your choice of an HVAC system that is perfect for your home and meets all your comfort requirements. While it’s tempting to simply purchase the equipment and get ready for installation, there’s one more thing that you have to look into: the warranty. The warranty should give you a clear idea of what will be covered in the event something breaks down.
A man is holding a remote control in front of an air conditioner.

Preparing Your AC System for the Summer Heat

By Bill Weavers • 06 Jun, 2022
There’s nothing better than relaxing in a cool home on a hot summer day. However, you need to make sure that your cooling equipment is ready for the hottest summer weather. Local cooling services provider W.E. Beavers Jr. Heating & Cooling shares tips to prep your AC system for the summer season.
Share by: