Is this worth buying over stick-on window film?

At $7.56 it is cheaper than most adhesive films and comes off without scraping. Stick-on film looks neater and stays put better, but it is harder to remove and reuse.

Will it actually lower my room temperature?

Foil reflects direct sunlight, so it cuts solar gain on a sun-hit window. It does not cool air, and the effect drops sharply on shaded or north-facing glass.

The sheet has punched holes for suction cups, so you press it to clean glass and pull it off when you want light. Cups grip poorly on dirty, cold or textured surfaces.

Can I cut it to fit my window?

Yes. The cloth-backed foil is flexible and trimmable, so measure the glass and cut slightly larger than the frame opening.

Does it keep heat in during winter?

It adds a reflective layer that can reduce radiant heat loss, but a thin sheet is no substitute for double glazing or heavy curtains.

The only new price on record is $7.56 at Walmart as of November 4, 2026. Seasonal demand peaks in summer, so off-season buys tend to be lower.

What do buyers say about the Double Sided Aluminum Foil Window Insulation Film?

Rated 1 out of 5 from 1 ratings.

Seplovoe

Double Sided Aluminum Foil Window Insulation Film

1

Best price now

$8.79at WalmartObserved at 3:11 PM

Prices are checked against each store and labelled with when.

Visit Walmart

Seplovoe

Double Sided Aluminum Foil Window Insulation Film

1

Best price now

$8.79at WalmartObserved at 3:11 PM

Prices are checked against each store and labelled with when.

Visit Walmart

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Our take on the Double Sided Aluminum Foil Window Insulation Film

A cut-to-size reflective sheet with aluminum foil on both faces, meant to be pressed onto window glass with suction cups to block sun in summer and hold heat in winter. It is sold as a flexible cloth-backed panel that can be trimmed to fit and removed without adhesive. At $7.56 at Walmart as of November 4, 2026, it is a low-cost, single-store listing with no competing new prices to compare against.

Best forRenters who cannot install permanent window filmSun-facing bedrooms and small officesCheap seasonal heat and glare controlCar or balcony windows used occasionally

Pros

Very cheap at $7.56
Double-sided foil reflects light from either face
Suction-cup holes allow removal without residue
Can be cut to fit odd window sizes
Reusable across seasons

Cons

Only one new price listed, so no real price comparison
Thin foil-backed cloth creases and can tear at the holes
Suction cups hold poorly on dirty or textured glass
Blocks light and view entirely when mounted
No stated R-value or tested insulation rating

Double Sided Aluminum Foil Window Insulation Film prices at every store

WalmartNew
In stockSold by runjer
$8.79Free shippingObserved at 3:11 PM
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Also available at

WalmartCheck price at Walmart

Double Sided Aluminum Foil Window Insulation Film price history

Lowest price we've seen: $8.79 on Nov 4 at Walmart. Tracked across 1 store since Nov 4.

What reviewers say

Reception is essentially unknown: the listing carries a single 1-out-of-5 rating, too little to judge reliability.

Cons

One low rating with no detail to explain it

About the Double Sided Aluminum Foil Window Insulation Film

Double Sided Aluminum Foil Window Insulation Film | Removable Sun Block Heat Shield Panel with Suction Cup Holes | Thermal Reflective Cover for Summer Cooling and Winter Warmth Features: double-sided aluminum foil reflects sunlight, reduces indoor temperature and blocks rays for summer. -punched 6 mounting holes allow installation with suction cups, to disassemble without on glass. Thickened thermal layer provides winter heat preservation and summer heat insulation, all-season usable. gray sealed prevents tearing, flexible material cuts to any window size. Widely applicable for, balcony, office, and car windows, reusable and to clean for long service. Product Description: include:1x Insulation film Material:cloth

Specifications

color: OtherSource
actual_color: ASource
size: 12.6×6.69×3.54Source
Thermal Type: Board
Type: Reflective Type

Questions and answers

Is this worth buying over stick-on window film?: At $7.56 it is cheaper than most adhesive films and comes off without scraping. Stick-on film looks neater and stays put better, but it is harder to remove and reuse.
Will it actually lower my room temperature?: Foil reflects direct sunlight, so it cuts solar gain on a sun-hit window. It does not cool air, and the effect drops sharply on shaded or north-facing glass.
How do I attach it?: The sheet has punched holes for suction cups, so you press it to clean glass and pull it off when you want light. Cups grip poorly on dirty, cold or textured surfaces.
Can I cut it to fit my window?: Yes. The cloth-backed foil is flexible and trimmable, so measure the glass and cut slightly larger than the frame opening.
Does it keep heat in during winter?: It adds a reflective layer that can reduce radiant heat loss, but a thin sheet is no substitute for double glazing or heavy curtains.
When is it cheapest?: The only new price on record is $7.56 at Walmart as of November 4, 2026. Seasonal demand peaks in summer, so off-season buys tend to be lower.
Where is the Double Sided Aluminum Foil Window Insulation Film cheapest?: At Walmart, for $8.79, as of our latest check.
What do buyers say about the Double Sided Aluminum Foil Window Insulation Film?: Rated 1 out of 5 from 1 ratings.