default

Name
Sealing outdoor windows
How to seal your windows

Save energy and money by sealing your windows

As the seasons change and temperatures fluctuate, so does the energy usage in your home. Make your home more efficient year round by sealing windows in your home with sealing caulk. And as a bonus, this can also help reduce noise and help keep out pests.  

Here are some things to keep in mind when caulking your windows: 

  • Pay attention to the caulk you choose –  use interior caulk for inside your windows, and exterior caulk for outside

  • Make sure the area around the window is clean when applying
  • Apply caulk on a mild weather day, since extremely hot conditions and precipitation may make your caulking less effective 
  • Apply the caulk in a continuous and smooth stream
  • Smooth out the caulk with a flat edge or smoothing tool
More resources to help you save
Rebates

Save on replacement costs with Spire's appliance rebates

Weatherization

Receive no-cost energy saving upgrades to your home if you meet income qualifications

Pay As You Save®

Make energy-efficiency upgrades to your home with little to no upfront costs and no credit checks