Window Caulking
Fresh caulk, inside and out, to seal the gaps around your window frames.
Caulk is the seal between your window frame and your walls and siding. Over time it dries out, shrinks, cracks and pulls away, leaving gaps where cold air can get in. You might feel it as a chill near the window, even when the window is closed and locked.
Many homeowners assume drafty windows need to be replaced. Often the window is fine and it's the seal around it that has failed. We remove failed caulk and seal the frame with fresh caulk on both the interior and exterior, stopping drafts from both sides.
Signs you need window caulking
- Cold air around window frames
- Cracked, shrinking or peeling caulk
- Visible gaps where frames meet walls or siding
- Chilly spots near windows
- Drafts even with windows locked
What's included
- Inspecting window frames inside and out
- Removing failed caulk where needed
- Applying fresh caulk to interior and exterior frame gaps
Three simple steps
- 1
Free inspection
About 15 minutes to find where cold air is getting in.
- 2
Clear estimate
A straightforward estimate before any work begins.
- 3
We seal it
Caulking, weatherstripping and door sweeps, backed by a 1-year warranty.
Why it matters
A well-sealed window lets you enjoy the room around it. You can sit by the window on a winter afternoon, arrange furniture where you want it, and stop covering the glass with plastic, all without replacing the windows you already have.
Window Caulking FAQ
Do I need new windows to stop drafts?
Not always. Very often the window itself is fine and the draft comes from failed caulk around the frame. Sealing those gaps can make a real difference. We'll tell you honestly what we see during your inspection.
Do you caulk inside or outside?
Both. We seal gaps around your window frames on the interior and the exterior, so drafts are stopped from both sides.
Can you caulk windows in the winter?
Yes. We seal windows year-round, including winter, when drafts are most noticeable.
How do I know if my caulk has failed?
Look for caulk that's cracked, shrinking away from the frame, peeling or missing. If you feel cold air around the edges of a closed window, the seal has likely failed.
Related services
Comprehensive Air Sealing
Our complete draft-stopping service. We inspect every exterior door and window, then seal each gap with the right fix: caulking, weatherstripping or a new door sweep. The most thorough way to stop cold air at the source.
Learn moreDoor Sweep Installation
If you can see daylight under your door, cold air is coming in. We install new door sweeps that close the gap at the bottom of your exterior doors.
Learn moreWeatherstripping
Worn, flattened or torn weatherstripping lets drafts slip around the edges of closed doors and windows. We replace it so everything closes snug and tight.
Learn moreBook your free window caulking inspection
Book your free 15-minute inspection and we'll show you exactly where the cold is getting in.