Drafty Windows and Doors
Drafty windows and doors allow conditioned air to escape and outside air to infiltrate, leading to uncomfortable indoor temperatures and higher energy bills. According to the U.S. Department of Energy, windows alone account for 25-30% of residential heating energy loss. Older homes with single-pane glass, deteriorated seals, or warped frames are especially vulnerable. Even newer homes can develop drafts as caulk shrinks, weather stripping compresses, and door frames shift with seasonal expansion and contraction. Identifying and sealing these air leaks is one of the most cost-effective home improvements available, often paying for itself within a single heating season.
- Apply Weather Stripping5
Weather stripping seals the gaps between movable components of windows and doors and their frames, blocking air infiltration at contact points. It is one of the most effective and affordable draft-reduction methods, typically costing under $20 per door or window and taking 15-30 minutes to install.…
📌 diy📌 low cost5/21/2025, 6:42:32 AM
🛠️ Weather stripping, scissors or utility knife, rubbing alcohol, measuring tape
- Seal Gaps with Caulk5
Caulking fills stationary gaps and cracks around window and door frames where they meet the wall, siding, or trim. Unlike weather stripping, which seals moving parts, caulk is applied to joints that do not move. A single tube of caulk costs $3-8 and can seal several windows. Silicone caulk is more…
📌 diy📌 low cost5/21/2025, 6:42:32 AM
🛠️ Caulk gun, silicone or latex caulk, putty knife, rubbing alcohol, backer rod (for large gaps)
- Use Draft Stoppers4
Draft stoppers (also called draft snakes or door sweeps) block the gap between the bottom of a door and the threshold or floor, which is often the largest single air leak around an exterior door. Ready-made stoppers cost $5-15, or you can make one from a rolled towel, a fabric tube filled with rice…
📌 diy📌 low cost5/21/2025, 6:42:32 AM
🛠️ Draft stopper or door sweep, screwdriver (for permanent sweeps), measuring tape
- Install Insulating Curtains or Blinds4
Thermal curtains and insulating blinds add a layer of barrier between the cold window glass and the room interior, reducing heat transfer and blocking drafts that pass through and around the window. Well-fitted thermal curtains can reduce heat loss through windows by 25-40% according to DOE…
📌 diy📌 low cost5/21/2025, 6:42:32 AM
🛠️ Thermal curtains or cellular shades, curtain rod or shade mounting brackets, drill, level
- Apply Window Film4
Window insulation film creates a transparent additional barrier over the glass, effectively adding a dead-air space that mimics the insulating effect of double-pane glass. Shrink-fit window film kits (such as 3M Indoor Window Insulator) cost $3-8 per window and can reduce heat loss through…
📌 diy📌 low cost5/21/2025, 6:42:32 AM
🛠️ Window insulation film kit, hair dryer, scissors or utility knife, cleaning supplies
- Re-hang or Adjust Doors3
When a door no longer sits square in its frame, gaps appear around the edges that weather stripping and caulk cannot adequately seal. Seasonal wood expansion, settling foundations, and loose hinge screws are the most common causes of misaligned doors. Adjusting or re-hanging the door restores a…
📌 diy5/21/2025, 6:42:32 AM
🛠️ Screwdriver, 3-inch wood screws, level, hand plane or sandpaper, cardboard shims, wood glue, dowels