Honest window-product reviews · Every seal tested through a full season · No paid placements
🔨 Windows, Tested From the Sill Up
Window fixes.Tested honestly.
Seal, repair, and upgrade products for windows — bought at retail price and tested in real Seattle homes, scored out of 10.
25+
Window products tested
The Fix Path
Diagnose → Fix → Prevent
Three stages, twelve products. Start with the draft you can feel, fix what’s broken, and stop it from ever coming back.
01
Diagnose
Find the draft before you fix it. Leaks hide around frames, sashes, and glass that feels cold to the touch.
4 PRODUCTS TESTED
9.1/10
SEAL & INSULATE
WindowSeal Draft Tape
Self-adhesive foam tape that seals window gaps in minutes. Survived a full Seattle winter and still peeled off cleanly when we replaced it.
DRAFTS FOAM TAPE
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8.7/10
SEAL & INSULATE
ClearVue Winter Window Film
Shrink-to-fit film that adds an insulating air pocket to single-pane windows. Nearly invisible and cuts that icy-cold window feel.
INSULATING SHRINK-FIT
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8.9/10
SEAL & INSULATE
CrackFill Window Caulk
Painter-friendly exterior caulk that seals cracks around window frames and stops water intrusion. Flexible enough for seasonal movement.
EXTERIOR PAINTABLE
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8.4/10
SEAL & INSULATE
FogGone IG Unit Repair Kit
DIY kit that clears foggy double-pane glass by drilling tiny vents and letting moisture escape. Saves you from replacing the whole unit.
FOGGY GLASS IG UNITS
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02
Fix
Repair what’s broken — screens, sashes, locks, and fogged glass — with products that actually fit and last.
4 PRODUCTS TESTED
8.6/10
FIX & REPAIR
MeshFix Screen Repair Kit
Fiberglass screening plus a spline roller that fixes a torn window screen in about 15 minutes. Cheaper than a whole new screen.
TEARS FIBERGLASS
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8.3/10
FIX & REPAIR
TrackGlide Sash Lubricant
Silicone spray that frees stuck sash windows in seconds. Won’t stain frames or attract dust the way oil-based lubes do.
STUCK SASH SILICONE
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8.8/10
FIX & REPAIR
LockRight Window Lock Set
Replacement sash locks and tilt latches that match most vinyl and wood windows. Hardware-store fit for the two most common styles.
SASH LOCKS HARDWARE
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8.2/10
FIX & REPAIR
RailClean Track Brush Kit
Bent-bristle brushes that reach the dirt in window tracks so sashes slide smooth again. Dirt, not hardware, causes most sticky windows.
TRACK DIRT BRUSH
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03
Prevent
Stop the problem from coming back with films, storm panels, thermal curtains, and moisture control.
4 PRODUCTS TESTED
9.0/10
UPGRADE & SAVE
Low-E Boost Window Film
Installs clear but reflects solar heat in summer and interior heat in winter. The cheapest energy upgrade per square foot we’ve tested.
LOW-E ENERGY
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8.5/10
UPGRADE & SAVE
StormShield Storm Window Kit
Interior storm panels that cut drafts and noise in minutes with zero drilling. Great for old single-glazed windows.
STORM WINDOWS NO DRILL
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8.6/10
UPGRADE & SAVE
QuietDrape Insulated Curtain
Thermal blackout curtains with a thick interlining that cuts draft and street noise at the same time. Machine washable.
THERMAL BLACKOUT
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8.1/10
UPGRADE & SAVE
DriPick Condensation Absorber
Refillable desiccant pouch that soaks up window condensation and stops the puddles on your sill. Low-tech and it works.
CONDENSATION REFILLABLE
Read full review →
The Energy Math
What a Draft Really Costs
Figures are typical ranges from US DOE guidance — actual results depend on your home, climate, and windows.
25–30%
of heating and cooling loss
escapes through drafts and gaps around windows and doors
10–15%
typical bill savings
from properly sealing and insulating your windows
1 weekend
to seal most homes
with the right tape, film, and caulk — no contractor needed
Our Method
How We Test
A simple, repeatable process — the same for every product we review.
01
We Buy It Ourselves
Every product is purchased at retail price. Brands don’t get a say or a preview of our results.
02
We Test It at Home
Real houses, real fixes — we install, we leak-test, we scrape, we climb. If it can’t survive real use, it doesn’t score well.
03
We Give One Verdict
One clear score out of 10, with the honest trade-offs shown. No vague “best-in-class” fluff.
04
We Re-Test Yearly
Re-reviewed every year. When something better comes along, we update the score — even if it means demoting a favorite.
🧾
How this site earns money
We earn through affiliate commissions and display ads — at no cost to you. Commissions never influence our verdicts, and we never accept payment for a good score. See our Disclosure .
Read our Disclosure
Reader Feedback
What Readers Say
★★★★★
“The IG repair kit saved me $400 on a foggy window. Two years later it’s still crystal clear.”
Tomás Rivera
Seattle, Washington
★★★★★
“TrackGlide freed a bedroom sash that had been stuck since we moved in. Under a minute.”
Erin Okafor
Verified reader
★★★★★
“I sealed every window in one weekend with the tape and film. The draft is just gone.”
Derek Molina
Verified reader
📬 The Window Fix Path Newsletter
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