Written by DIY Renter-Friendly Window Energy Upgrades for Renters
You don’t need to replace your windows or own the building to cut drafts, lower bills, and even make a bit of energy. With a few renter-safe tricks, your windows can work for you instead of against you.
1. Insulated Curtains or Cellular Shades
Supplies
Thermal or blackout curtains OR cellular (honeycomb) shades Curtain rod or tension rod (no-drill for renters) Draft stoppers (optional, for the base of windows)
Steps
Measure your window and buy curtains/shades that extend at least 10–15 cm beyond each side. Install with a tension rod (no holes required). Close at night and on very cold or hot days to trap air. Open during sunny winter days to let in natural heat.
Cost: $50–$200 per window.
2. DIY Window Film
Supplies
Insulating plastic window film kit (available at hardware stores) Double-sided tape (comes with most kits) Hair dryer
Steps
Clean the window frame and dry thoroughly. Apply double-sided tape around the edges. Stick the clear film to the tape, pulling it snug. Use a hair dryer to shrink the film till it’s tight and wrinkle-free.
Cost: $10–$40 per window.
Note: Removes easily at the end of the season.
3. Interior Storm Window Inserts
Supplies
Clear acrylic sheet or custom insert kit (many Canadian companies sell made-to-measure inserts). Magnetic or compression-fit track system (renter-friendly, no permanent screws)
Steps
Measure the window opening carefully. Order or cut an acrylic sheet to fit. Attach the magnetic/compression frame around the window. Fit the insert snugly into place to trap drafts.
Cost: $150–$300 per window.
Note: Some companies in Canada (e.g., ClimateSeal, Innerglass) specialize in inserts.
4. Portable Window Solar Panel
Supplies
Small plug-and-play solar panel designed for window use (brands like Grouphug, Shine, or Amazon basics). Suction cups or a bracket mount (comes with panel). It uses USB charging cables
Steps
Place the panel in the sunniest window. Attach with suction cups or hang from the sill. Plug in phones, tablets, or rechargeable batteries.
Cost: $100–$500 depending on size.
Note: Not whole-home power, but a great way to offset daily device charging.
Quick Wins
- Draft stoppers ($10–$20) along the bottom edge keep warm air in.
- Reflective foil panels ($20–$40) can be tucked behind curtains to bounce heat back inside in winter.
- Sheer curtains ($30–$60) help in summer, blocking glare while still letting light through.
These upgrades are cheap, reversible, and landlord-approved. You’ll notice a difference in comfort and bills—and in the case of solar panels, you’ll even start generating your own power.