Reviews
Best Security Window Film (2026)
Ranked 8-mil and 14-mil security films from 3M, Solar Gard, and LLumar — professional vs DIY, edge-attachment requirement, Quebec availability.
Updated 2026-04-25
How we ranked
Security film performance depends on two variables: thickness and installation method. Thickness affects tensile strength after the glass breaks. Installation method determines whether the force transfers to the frame or pushes the pane out intact.
The criteria were:
- Minimum 8 mil thickness — the threshold for genuine forced-entry resistance. Thinner products are safety films.
- Documented professional edge-attachment system available — products with no documented edge-attachment method ranked lower.
- Independent test basis — ANSI Z97.1 or equivalent, rather than manufacturer-only claims.
- Canadian professional installer availability — relevant for Quebec homeowners who need professional installation.
One DIY product (BDF S8MC) was included as a caution-category pick for lower-risk windows where professional installation is not practical.
Ranked picks
Ranked picks
Best professional-grade 8 mil film candidate. The key message is that forced-entry resistance depends on proper attachment to the frame.
- Price:
- Quote only; commonly professional-installed
- Certification:
- 8 mil film; test claims in 3M data sheet; attachment required for break-and-entry applications
- 8 mil clear multilayer film
- 3M IDs include 7100042604/605/607 depending roll width
- Compatible with 3M Impact Protection Attachment system
Thicker 3M option for higher-risk glass, but the content should call it S140, not S1400, unless a current S1400 source is found.
- Price:
- Quote only; premium professional install
- Certification:
- 14 mil safety/security film; verify project-specific test report and attachment
- 14 mil film
- Professional installation
- Attachment/sealant may be required for security claims
Armorcoat Clear 8 mil
Strong professional-grade 8 mil alternative to 3M, with clear technical tables and dealer network.
- Price:
- Quote only; professional install
- Certification:
- 8 mil clear safety/security film; manufacturer publishes performance and blast docs
- 8 mil clear film
- 88 percent visible light transmittance per Solar Gard table
- Dealer-installed
Armorcoat Clear 14 mil
Thicker Armorcoat option for higher-risk openings, with the same edge-attachment warning as every security film.
- Price:
- Quote only; premium professional install
- Certification:
- 14 mil clear safety/security film; manufacturer performance table
- 14 mil clear film
- 87 percent visible light transmittance per Solar Gard table
SCL SR PS8
Strong tested-film candidate, but use current LLumar product names rather than older shorthand like S80 unless a local dealer confirms it.
- Price:
- Quote only; professional install
- Certification:
- ANSI Z97.1 / CPSC test documentation available in LLumar summaries; verify exact glass/test assembly
- 8 mil product family naming in LLumar documents
- Safety/security and glass retention film
SCL SR PS13
Higher-thickness LLumar contender for exposed glass, with strong test-document support but project-specific verification needed.
- Price:
- Quote only; premium professional install
- Certification:
- ANSI Z97.1 / CPSC test documentation available in LLumar summaries; verify exact glass/test assembly
- Approx. 13 mil safety/security family in LLumar testing summary
- Professional install
Best consumer DIY film found, but it should not be compared directly with professionally attached 3M/Solar Gard/LLumar systems.
- Price:
- $140-$300 depending roll size
- Certification:
- ANSI Z97.1 Class B and CPSC Category 1 per BDF
- 8 mil clear film
- DIY/consumer roll sizes
- Interior application
Canadian DIY availability is useful, but the product needs better test-document support before ranking above BDF or pro films.
- Price:
- $140+ by size
- Certification:
- No independent test report found in quick source pass
- 8 mil film
- Canadian DIY listing
Notable mentions
Best consumer DIY film found, but it should not be compared directly with professionally attached 3M/Solar Gard/LLumar systems.
- Price:
- $140-$300 depending roll size
- Certification:
- ANSI Z97.1 Class B and CPSC Category 1 per BDF
- 8 mil clear film
- DIY/consumer roll sizes
- Interior application
Canadian DIY availability is useful, but the product needs better test-document support before ranking above BDF or pro films.
- Price:
- $140+ by size
- Certification:
- No independent test report found in quick source pass
- 8 mil film
- Canadian DIY listing
The installation mistake that undermines security film
Daylight-cut installation. Film cut to the glass size and applied only to the glass surface has no connection to the frame. On the first hard hit, the entire pane pushes out intact. For genuine forced-entry resistance, the film must be tucked under the glazing bead and sealed to the frame on all four sides.
The security film guide covers step-by-step edge-attachment instructions.
Audit your home in 5 minutes
Get a score, your top 3 priorities, and a map of the threats you are protected against.
Need a pro to install this?
SecureDoor installs door reinforcement across the region. Take 60 seconds to message us.
Or call: (514) 928-8572
Audit your home in 5 minutes
Get a score, your top 3 priorities, and a map of the threats you are protected against.
Need a pro to install this?
SecureDoor installs door reinforcement across the region. Take 60 seconds to message us.
Or call: (514) 928-8572