Weatherstripping Guide: Seal Drafts & Save Energy

One of the fastest ROI upgrades: reduce drafts so HVAC works less and your home feels more comfortable.

Where weatherstripping helps most

Types of weatherstripping (quick comparison)

TypeBest forProsCons
Foam tape Small gaps on doors/windows Cheap, easy DIY Wears faster
Rubber/Vinyl Doors with consistent gap Durable, good seal Needs correct sizing
Door sweep Bottom of exterior doors Huge impact, quick win Can scrape on uneven floors
V-strip Window sashes, door edges Good for sliding action Install accuracy matters

DIY install plan (30 minutes)

  1. Find the leak: feel drafts by hand, especially on windy days.
  2. Measure gaps: choose material thickness that compresses slightly when closed.
  3. Clean surfaces: alcohol wipe improves adhesion.
  4. Install & test: door/window should close smoothly without forcing.
  5. Re-check after 24 hours: adhesive sets; adjust if rubbing.

Recommended weatherstripping categories

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Tip: buy after measuring the gap—too thick makes doors hard to close; too thin doesn’t seal.

Pair this with thermostat optimization

Sealing drafts makes temperature hold better, so thermostat scheduling becomes more effective.

Read: Smart Thermostat Guide →

Next steps (internal links)

FAQ

Do I need to seal every window perfectly?

No—start with the worst offenders. Doors and the garage entry often produce the biggest comfort improvement.

How do I know it worked?

Drafts should reduce immediately. Over time, you should see less HVAC runtime and more stable indoor temperature.