Last Updated: April 2026

In order to be left with something functional and clean the following spring,  taking some important steps to winterize your pond becomes necessary. Make sure your Sugar Grove area pond is receiving all the love and care it needs.

Closing down in a proper manner is one of the best things you can do for the long-term health of your pond the following season. There are some simple steps you can take to winterize your pond.

Winterize Your Pond To Help It Last Longer:

Keeping it Clean

Placing a pond net over the open water can make it easy to simply roll up and remove the leaves at the end of the season. If you don’t have a pond net, a long-handled net can help you clean the fallen leaves and debris.

Cold Water Bacteria

Adding a solution such as Aquascape cold water bacteria can help maintain water quality and clarity through the cold of the winter months. It can also help to digest debris that would otherwise accumulate over the winter months.

Shutting it Down

Here are some of the steps involved in shutting your pond down for the winter months. There are a lot of components to a working pond, and making sure they stay protected from the extreme winter temperatures can be a process.

  • Remove the pump and store it in a warm place.
  • Drain water from the plumbing.
  • Clean the filter.
  • Oxygenating your pond keeps the gasses flowing out, and allows the needed oxygen in. This hole also helps fish to survive the winter months. 

If you should decide to keep your pond running, keep an eye out for ice dams that allow water to escape over the sides of your pond.

Make sure that you heed these steps to winterize your pond. They are important for the enjoyment of your investment the following spring. Should you need further assistance in winterizing your pond, or have any further questions, contact a professional landscaper today!

Frequently Asked Questions

When should I winterize my pond in the Fox Valley area?
In the Fox Valley — including Oswego, Yorkville, and Naperville — pond winterization should begin when water temperatures drop consistently below 50°F, typically in October. At that point, fish metabolism slows dramatically and beneficial bacteria become inactive. Waiting too long risks trapping toxic gases under ice or stressing fish before they can properly enter dormancy.
Do I need to remove my pond pump for winter in Illinois?
Yes, for most Illinois ponds the submersible pump should be removed and stored indoors once water temps drop below 50°F. Running a pump in very cold water creates a current that can disturb fish in their winter dormancy and may prevent a proper insulating ice layer from forming. A small de-icer or pond aerator can be used instead to maintain a hole in the ice for gas exchange.
Can BLC Yardworks winterize my pond near Oswego or Yorkville?
Yes — BLC Yardworks provides seasonal pond maintenance services including fall winterization for ponds in Oswego, Yorkville, Plainfield, and surrounding Fox Valley communities. Our team handles pump removal, net installation, debris clearing, and cold-water bacteria treatment so your pond is fully protected heading into the Illinois winter.

Related Resources: Pond Maintenance Services • Water Features • Schedule Pond Service

Written by BLC Yardworks — Fox Valley hardscaping, landscaping, and water feature contractors serving Oswego, Yorkville, Plainfield, Naperville, and surrounding communities since 1999.