Drafty, cracked, or hard-to-open windows can drive up energy bills and compromise your home’s comfort. However, you don’t need to break the bank on full replacements. With these cheap window fix ideas, you can seal drafts, improve functionality, and boost efficiency on a shoestring budget.

1. Seal Drafts with Weatherstripping
One of the simplest—and cheapest—ways to stop cold air and moisture is to add weatherstripping:
- Foam tape: Peel-and-stick strips compress to fill gaps around sashes. Costs under $5 per window.
- V-strip (tension seal): Durable PVC or metal-reinforced strips fold into corners for a tighter seal. About $10 for several feet.
- Felt weatherstripping: Inexpensive but less durable; best for low-traffic windows.
Apply weatherstripping where you feel air leaks—around sashes, casings, and between moving parts. A well-sealed window can cut drafts by up to 50%.

2. Use Window Film for Insulation and Privacy
Clear insulating film creates an extra thermal barrier:
- Measure your glass area and cut the film ¼” wider on each side.
- Apply double-sided tape around the frame.
- Stretch the film over the window, then gently heat with a hairdryer to shrink it tight.
At around $15–$25 per room, window film reduces heat loss while keeping your view—and can even block 99% of UV rays.
3. Caulk Cracks and Gaps
A tube of exterior-grade caulk (about $5–$8) is a powerful tool:
- Identify gaps: Look for cracks where siding meets window trim or where the frame meets the wall.
- Prep the surface: Clean dirt and old caulk with a putty knife and a damp cloth.
- Apply caulk: Run a smooth bead along the gap, then tool it with your finger or a caulk smoothing tool.
Proper caulking prevents water intrusion, mold growth, and drafts—no heavy equipment required.

4. Repair Minor Glass Damage
Small chips and cracks don’t always mean a full-pane replacement:
- DIY glass repair kits: Resin-based kits (around $10–$20) inject clear resin into cracks, then cure under UV light.
- Temporary tape fix: If you need a stopgap, apply clear packing tape on both sides of a crack to hold shards in place until you can repair properly.
Resin repairs can extend the life of a pane for a year or more, giving you time to budget for full replacement down the road.
5. Lubricate and Tighten Hardware
Sticking or rattling windows often need a little maintenance:
- Spray silicone lubricant on tracks, hinges, and locks—$5–$10 buys a can that lasts for years.
- Tighten loose screws on handles, hinges, and rollers with a screwdriver.
- Adjust rollers (on sliding windows) or hinges (on casements) to ensure sashes close snugly.
Smooth-operating hardware reduces wear on seals and stops small problems from becoming big (and expensive).
6. Add Draft Stoppers and Insulating Curtains
Soft, no-cost extras can block cold air at the sill:
- Fabric draft snakes placed at the base of windows trap incoming drafts.
- Heavy thermal curtains pull down past the sill and create an insulating layer.
- DIY pillowcase inserts: Fill a fabric tube with rice or beans for a simple draft stopper you can customize to match your décor.
These additions cost as little as $5–$20 and can lower heat loss by 10–20%.
When to Consider a Full Replacement
While cheap window fix solutions deliver quick savings, they’re best for small issues or temporary relief. If you notice:
- Widespread rot or structural damage
- Persistent condensation between panes
- Cracked insulated (double-pane) glass
…it’s time to budget for a professional window replacement. High-performance windows pay back through energy savings over time, but you can stretch your budget by tackling one or two windows per season.
Final Thoughts
A cheap window fix doesn’t have to look or feel cheap. By sealing drafts, repairing glass, and maintaining hardware, you’ll enhance comfort and lower energy bills—often with less than $50 in supplies per window. Start with the simplest fixes, then plan for upgrades as your budget allows.