When your windows are installed, the glass panels are held in place by a sealant. The sealant is an adhesive that sticks your glass panels to the window frame. If this sealing material is damaged, your glass may become easily cracked or chipped.

In addition, you may end up leaking lots of air from your home and driving up your heating and cooling costs. This is why it's important to keep an eye out for the signs of damaged sealant. Here are 4 of the most common signs of damaged sealant and how you can seek timely repairs.

Water condensation around the edges

One of the most common signs of damaged sealant is condensation around the edges. When the seal isn't airtight, leaking air will flow in and out of the home. You will find that temperature differences between your glass and flowing air result in condensation.

Water drops around your window glass should be addressed as soon as possible to prevent further and costlier damages.

Gusts of air passing through closed windows

Do you notice an influx of air whenever you're sitting near your windows? If so, the glass may have damaged sealant. Most seals are airtight, watertight and capable of keeping out insects. However, any damaged sections will result in gusts of air passing through and interfering with the comfort of your home.

If you notice air, water or insects passing through your sealant, make sure a window glass repair technician applies a new layer of sealing material. The glass should adhere firmly to your window frames to prevent leaking air.  

Frequently dirty windows

Another common sign of damaged sealant is windows that frequently become soiled and stained. Your windows need to be cleaned regularly—but if you notice that dirt and debris accumulate faster than usual, you may have a problem with your sealant.

You can physically inspect your window frames to identify if any areas have missing or damaged sealant. With timely repairs, you'll be able to save on window cleaning costs.

Unusually high heating and cooling costs

If your utility bills are unusually high, the problem could be your window sealant. Leaking air through your windows will affect how your HVAC system works, and could potentially drive up your heating and cooling costs. This is because the unit will have to work harder just to keep your home at the right temperature.

If you notice that your utility bills are biting into your wallet, check your windows to ensure that the sealant is in good condition, and if it isn't, reach out to a window repair service.