How long do windows last, and how do you extend them?
Maintained lasts 25 years, left alone about 12. That gap is yours to keep.
Windows typically last about 12 to 25 years. Seal integrity and good caulking are what get you to the top of the range.
Pros who do this work near you
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Two lifespans
Failed seals and cracked caulk let water into the wall, feeding mold and wood rot behind the frame you never see until it spreads.
Overview
Windows fail from the outside in. A failed exterior seal lets water reach the frame, and a fogged double-pane seal ruins the insulation. Keeping caulking and weep holes healthy is most of what extends them.
The maintenance that buys you the years
- Inspect and reseal exterior caulkingHigh impactYearly
Stops water from reaching the frame, which is what actually rots windows.
- Keep weep holes clearHigh impactYearly
Weep holes drain the sill. Blocked, they trap water inside the frame.
- Clean and lubricate tracks and hardwareMedium impactYearly
Reduces wear on rollers and latches and keeps the seal tight.
- Check for fogging between the panesMedium impactYearly
Fog means the insulating seal has failed, and the pane assembly needs replacement.
- Clean the frames and screensLow impactTwice a year
Salt and grit accelerate wear here.
Signs it is failing
- Fog or moisture between the panes
- Drafts even when closed
- Sticking sashes or hard-to-turn locks
- Water on the sill after a rain
- Peeling paint or rot on the trim
Repair or replace
Hardware and single pane assemblies can be replaced. If frames are rotted or several units are failing, replace, and consider impact-rated windows.
The facts
Sun, salt, and hurricane exposure all age windows faster here. Impact-rated windows are increasingly standard in Florida for a reason.
FAQ
About 12 to 25 years, longer with sound caulking and clear weep holes.
Sources
Sources are general public references. Verify specifics for your model.
Make this one last longer
Book a pro who does this work, or add this windows to your free home record and get reminders when it needs service.
Keep going
Lifespans and maintenance guidance are general estimates and vary by product, use, and climate. Always follow your manufacturer's instructions.