DIY Guide: How to Find and Fix Drafty Windows

When renting a home through GPS Renting, tenants may encounter a few common maintenance issues—like a jammed garbage disposal, a loose toilet seat, or a drafty window. These minor inconveniences usually take less than an hour to resolve. That’s why we created our DIY Home Fix Series: to help residents tackle small problems efficiently while saving on repair costs.

One of the most common cold-season issues is a drafty window—a small problem that can make a big impact on your comfort and energy bills. Let’s walk through how to find and fix these chilly intrusions.

Key Takeaways

  • Identify drafts using candle, hand, or flashlight tests.

  • Quick fixes like weatherstripping and caulk are cheap and effective.

  • Professional upgrades provide better insulation and resale value.

  • Choose the best solution for your budget and living situation.

  • GPS Renting supports Seattle tenants with expert guidance and responsive maintenance services.

Step 1: Locate the Drafts

DIY Methods:

  • Candle or Incense Test: Light a candle or stick of incense and slowly trace it around the edges of closed windows. If the flame or smoke wavers, you’ve found a draft.

  • Hand Test: On a cold day, move your hand slowly around the window edges. Cold air signals a leak.

  • Flashlight Test (at night): Ask someone to shine a flashlight along the window edges from outside. If you see light indoors, you’ve found a gap.

Professional Tip:

  • Energy Audit: A certified energy auditor can use tools like thermal imaging cameras and blower door tests to detect even the smallest leaks throughout your home.

Step 2: Choose Your Fix

DIY Solutions (Budget-Friendly & Quick)

SolutionBest ForTools NeededCostDifficulty
WeatherstrippingGaps around window sashesScissors, tape measure$5–$15/windowEasy
CaulkingCracks between window and wallCaulking gun, utility knife$3–$7/tubeEasy
Draft SnakesBottom window gapsFabric, rice/filler$0–$10Easy
Insulation FilmWindows not in use during winterShrink-wrap kit, hairdryer$10–$20/packEasy
Thermal CurtainsLight insulation, privacyCurtain rods$20–$50/panelEasy

DIY Tips:

  • Clean the area before applying caulk or tape.

  • Apply weatherstripping during dry weather for best adhesion.

  • Use a hairdryer to shrink insulation film tightly against the glass.

Professional Solutions (Long-Term & Effective)

SolutionBest ForEstimated CostBenefits
Storm WindowsPreserving historic windows$150–$300/windowAdds insulation, removable
Window ReplacementsDamaged or outdated windows$500–$1,200/windowEnergy efficient, increases home value
Professional Caulking/SealingLarge or multiple gaps$200–$600/homeGuaranteed sealing, warranty included

Professional Tips:

  • Opt for Energy Star-rated windows to reduce heating bills by up to 15%.

  • Combine storm windows with thermal curtains for maximum energy savings.

  • Ask your contractor about low-e glass and argon gas-filled windows for better insulation.

DIY vs. Professional: Which Is Right for You?

FactorDIY FixProfessional Fix
CostLowMedium to High
TimeImmediateScheduled
EffectivenessTemporary to moderateLong-term
Skill NeededBasicNone (handled by pros)
Best ForRenters, temporary solutionsHomeowners, long-term investment

GPS Renting Tip:
As a Seattle-based property management company, GPS Renting empowers tenants and homeowners alike with maintenance support and resources. If you’re a renter, notify your property manager before making alterations — we’re here to help guide or assist with the fix!

Final Thoughts

Drafty windows may seem small, but they can lead to big problems over time. Whether you’re using a draft snake today or planning to upgrade windows in the future, fixing drafts is an investment in your comfort and energy savings.

“Tired of dealing with cold drafts and rising energy bills? Start your DIY repairs today or contact GPS Renting for expert property management solutions in Seattle. Let us help you keep your home comfortable year-round!”