What is Tree Sap and How Can It Affect Your Windows

If you have a tree situated near your windows or on your property, chances are that you’ve probably encountered tree sap residue before. Tree sap can seep out of the tree and drip onto any part of your property, but it is especially annoying when it drips onto your window and forms a stubborn stain that just won’t seem to go away. In this post, we take a closer look at what exactly tree sap is and how it can affect your windows.

What is Tree Sap

Tree sap is a natural substance that is produced by many different species of trees, including pines, spruces and firs. Tree sap has many functions within the tree itself, including as a means of transporting nutrients from one part of the tree to another. In certain species of trees, the sap tends to seep out of the tree through cuts and other openings in the tree bark, including insect feeding sites. If you have a tree near your windows, it is possible that some sap might occasionally drip onto your windows.


The appearance of tree spa can differ significantly depending on the type of tree that it’s from. While tree sap is generally thick and sticky, some trees produce a yellowish or clear sap whereas others might produce a more opaque orange sap. Some types of tree saps such as the sap from the maple tree can also be used in cooking, with maple syrup being created from the sap of the maple tree.

How Can Tree Sap Affect Your Windows

If it is not dealt with immediately, the tree sap that drips onto your windows can end up forming a stubborn stain that you might have difficulty removing later on. Sap stains on windows can look very visually unappealing as it can look like animal droppings. Moreover, tree sap stains can also reduce the amount of light that is able to pass through your windows, potentially causing the interior of your home to look dimmer and gloomier.

How to Reduce Tree Sap Stains

There are several ways that you can reduce the number of tree sap stains that you encounter on your windows. One of the best ways to do so is by pruning any trees that are near your windows. As far as possible, try to get rid of overhanging branches as sap can often drip from these branches onto your windows. You can also prune these trees during seasons when tree sap production is most prevalent, which may differ from species to species.

Hire Professional Window Cleaners to Remove Stains

To remove the stubborn sap stains that are already on your windows, you can consider hiring professional window cleaners. Acorn Window Cleaning is a leading provider of commercial and residential window cleaning services in Melbourne and we have the proper window cleaning equipment and expertise to efficiently and effectively get your windows looking as good as new again. Contact us today for a free consultation on all your window cleaning needs.