Apartment Setup
How to Stop a Window From Drafting in an Apartment
Use this when you feel cold air around a closed apartment window, especially near the sash, sill, or edges during winter. This guide covers temporary draft reduction, not window replacement, broken glass, or damaged frames.
By FPF Operations Team. Updated June 13, 2026. Edited for renter-aware safety.
Time: 20-45 minutes. Difficulty: Easy. Safety: Low.
Editorial and Safety Note
This guide is prepared by the FPF Operations Team for general home-care education. We favor dry, visible, reversible first checks, clear documentation, and early escalation to emergency services, property maintenance, your landlord, or a licensed professional when a problem involves safety systems, electricity, gas, active water, locks, HVAC, appliances, mold, pests, height, or uncertainty.
Quick Answer
Lock the window fully, clean the frame, find the draft with your hand, add removable weatherstripping or a draft stopper where allowed, and document damaged seals or broken locks for maintenance. Do not caulk, paint, drill, or seal an emergency egress window shut.
Before You Start
- Confirm the window closes and locks before adding anything.
- Check your lease before applying adhesive weatherstripping or window film.
- Make sure you do not block a required exit window or fire escape access.
Tools Needed
- Microfiber cloth
- Mild cleaner
- Removable foam weatherstripping if allowed
- Draft stopper or rolled towel
- Painter's tape
- Phone camera
Renter Notes
Removable draft control is usually safer for renters than permanent caulk or hardware. Report broken locks, cracked glass, rotted frames, heavy condensation, or windows that will not open and close safely.
Step-by-Step Guide
- Close and lock the window, then check whether the draft improves.
- Wipe dust from the sill, tracks, and frame so removable products can sit flat.
- Move your hand slowly around the edges to locate the strongest draft.
- Place a draft stopper or rolled towel along the sill if the draft comes from the bottom.
- Apply removable foam weatherstripping only where it will not prevent the window from locking or opening.
- Take photos and submit a maintenance request if the lock, glass, seal, or frame appears damaged.
Common Mistakes
- Adding thick foam that keeps the window from latching.
- Using permanent caulk on rental windows without permission.
- Ignoring a draft caused by a broken lock or cracked glass.
What Not to Do
- Do not seal a window shut, especially if it may be an emergency exit.
- Do not drill into window frames or install permanent hardware without approval.
- Do not cover moisture, mold, or rot with tape and call it fixed.
When to Pause and Ask for Help
Contact your landlord or maintenance team if the window will not lock, glass is cracked, the frame is soft or rotted, water enters, condensation is heavy between panes, or the window cannot open for emergency exit.
FAQ
Is removable weatherstripping okay in a rental?
Often, but check your lease and test carefully. Adhesive products can still pull paint or finish.
Can I use plastic window film?
Possibly, if your lease allows it and the window is not needed for emergency exit. Remove it carefully at move-out.
Why is my locked window still drafty?
Old seals, warped sashes, loose locks, or frame gaps can leak air even when locked.
Should maintenance fix drafts?
They should address damaged locks, glass, frames, or seals. Temporary comfort steps are different from window repair.
Final Checklist
- Window closed and locked
- Draft location found
- Frame cleaned
- Removable solution used
- Exit access kept clear
- Damage photographed and reported
Discussion
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