Symptoms
- Window hasn't been opened in years
- Hinges or track visibly rusted
- Frame feels swollen or damp
- Won't budge even with steady pressure
Likely causes
- CommonRust on metal hinges or hardwareBasements tend to be damp, accelerating corrosion on steel parts.
- CommonPaint sealing the sash shutBasement windows are often painted less carefully and get sealed over multiple coats.
- PossibleSwollen wood from chronic dampnessBasement humidity can keep wood frames perpetually slightly swollen.
- PossibleDebris or dirt built up in the track from ground-level exposureBasement window wells collect dirt and leaves that can jam the track.
What to do
- Clear the exterior window well of leaves, dirt, and debris if the window has one.
- Score any paint seams around the sash with a utility knife.
- Apply penetrating oil to any visible rusted hinges or hardware and let it sit for several minutes.
- Work the sash gently with a putty knife along the seam rather than forcing it.
- Clean and lubricate the track once the sash is free.
- If wood is swollen from persistent dampness, address the moisture source (grading, gutters, a dehumidifier) so the problem doesn't return.
- For heavily rusted hinges that won't free up, replace the hinge hardware rather than continuing to force it.
Tools and parts
- Utility knife
- Penetrating oil
- Putty knife
- Wire brush
Replacement window hingesSearch: “basement window hinge replacement”
When to call a pro
Call a basement waterproofing contractor or handyman if this is an egress window needed for emergency exit and it won't open freely, since that's a safety issue.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.