Frequently Asked Questions
Find answers to commonly asked questions about our products and services. Learn more about residential and commercial window tinting, energy-saving films, security glass protection, and custom decorative window film options from Guardian Bastille.
What is window film and how does it work?
Window film is a thin, multi-layered material applied to existing glass to enhance energy performance, safety, and appearance. It works by filtering sunlight—blocking heat, glare, and harmful UV rays—without the need to replace your glass. Guardian Bastille installs high-performance 3M™ films that transform standard glass into a more efficient, comfortable, and secure surface.
How do I clean my 3M window Film / Window Tint after it is installed.
What are the different types of window films?
Guardian Bastille offers a full range of films including Solar Control, Safety & Security, Decorative & Privacy, Specialty, and Architectural Resurfacing films. Each category serves a different purpose—from reducing energy costs and glare to upgrading aesthetics or adding break-in protection.
What does frosted or decorative window film look like once installed?
Frosted window films create the look of etched glass for a fraction of the cost. They diffuse light beautifully while maintaining privacy—ideal for offices, conference rooms, and bathrooms. Our 3M Fasara™ and Solyx® lines offer countless patterns and finishes for a custom architectural touch.
How does window film adhere to the glass?
Window film is installed using a pressure-sensitive or dry-adhesive system engineered to permanently bond with glass once activated by water and squeegee pressure. The result is a smooth, crystal-clear finish that looks integrated with the window, not applied on top of it.
How long does professional window film installation take?
Most residential or small commercial installations are completed in one day. Larger or multi-story projects may take several days depending on glass quantity and accessibility. Guardian Bastille technicians work cleanly and efficiently to minimize disruption to your operations.
Can I install window film myself?
While DIY kits exist, professional installation ensures flawless alignment, long-term adhesion, and warranty protection. Our installers are factory-trained by 3M and follow strict industry standards for surface prep and installation quality.
How long does professional window film installation take?
Quality window films from 3M and other premium manufacturers are designed to last 10–20 years or more, depending on exposure and film type. Interior-mounted films last longest, while exterior films are engineered for UV and weather resistance.
Can window film be removed or replaced?
Yes. Window film can be safely removed using professional techniques that protect your glass and frames. Many clients choose to upgrade older films when redecorating or switching to newer, higher-performance products.
Does window film void my glass or window warranty?
When installed by an authorized dealer, such as Guardian Bastille, your glass warranty remains intact. In addition, 3M backs its films with comprehensive manufacturer warranties that include glass breakage and seal-failure coverage when applicable.
Can window film cause seal failure in insulated (double-pane) glass?
Properly selected and installed films will not cause seal failure. Our team performs a glass-type analysis before every project to ensure compatibility. We only use certified films approved for dual-pane applications to maintain your window’s integrity.
How much can window film reduce heat and glare?
High-performance solar control films can block up to 79% of solar heat and reduce glare by up to 85% without darkening your interior. That means greater comfort, reduced eye strain, and lower cooling costs for your building year-round.
Can window film lower my electric bill or improve HVAC efficiency?
Yes. By reducing heat gain through glass, window film helps your HVAC system run more efficiently and less frequently. Most clients see energy savings between 5–15% annually—often with a full ROI in 2–5 years depending on glass exposure and energy rates.
Will window film help prevent fading of furniture, flooring, and artwork?
Absolutely. Fading is caused by UV light, heat, and visible light. 3M™ window films block 99% of UV rays and significantly reduce heat and visible light—preserving furnishings, flooring, and artwork while maintaining natural light.
Does window film make windows too dark or reflective?
Not necessarily. Today’s films come in a wide range of shades and finishes—from nearly invisible clear films to highly reflective tints. We help clients choose the right balance of performance, aesthetics, and visibility for each environment.
What is the best window film on the market today?
While “best” depends on your goals, 3M™ Prestige Series films are often considered the gold standard. They combine advanced nanotechnology, high optical clarity, and strong heat rejection without the mirror-like appearance common in older films.
Is there a film that provides daytime privacy or a “one-way mirror” effect?
Yes, reflective films can create a daytime one-way mirror effect, but this depends on lighting conditions. The side with more light becomes reflective, so at night the effect reverses unless paired with shades or lighting control. We help design solutions that achieve the look you want while maintaining functionality.
What type of film helps prevent turf burning or window reflection damage?
Guardian Bastille offers non-reflective exterior window films specifically engineered to reduce the intense reflections that melt turf or vinyl siding. These films diffuse sunlight instead of reflecting it—ideal for Florida homes and sun-facing commercial properties.
Can window film make glass bulletproof or shatterproof?
No window film is truly bulletproof. However, Safety & Security Films dramatically increase impact resistance and hold shattered glass in place, reducing hazards from break-ins or blasts. For ballistic protection, we offer Riot Glass® systems engineered to UL-rated levels.
What is a safety and security film attachment system?
An attachment system secures the edges of safety film to the window frame, forming a continuous barrier. This prevents the glass from being pushed in after impact, offering enhanced protection against forced entry, blasts, or storm damage.
Can window film make glass bulletproof or shatterproof?
No window film is truly bulletproof. However, Safety & Security Films dramatically increase impact resistance and hold shattered glass in place, reducing hazards from break-ins or blasts. For ballistic protection, we offer Riot Glass® systems engineered to UL-rated levels.
How does safety film compare to Riot Glass® or ballistic glass solutions?
Safety film resists shattering and delays forced entry, while Riot Glass® provides true ballistic and forced-entry resistance starting at UL Level 1 and customizable to higher threat levels. Many clients combine both systems for layered protection.
Can window film make glass bulletproof or shatterproof?
No window film is truly bulletproof. However, Safety & Security Films dramatically increase impact resistance and hold shattered glass in place, reducing hazards from break-ins or blasts. For ballistic protection, we offer Riot Glass® systems engineered to UL-rated levels.
Can window film make glass bulletproof or shatterproof?
No window film is truly bulletproof. However, Safety & Security Films dramatically increase impact resistance and hold shattered glass in place, reducing hazards from break-ins or blasts. For ballistic protection, we offer Riot Glass® systems engineered to UL-rated levels.
How much does commercial window film cost per square foot?
Pricing depends on film type, glass size, and project complexity. Most professional installations range from $8 to $20 per square foot, including materials and labor. Safety or specialty films may cost more. Guardian Bastille provides detailed written estimates with transparent pricing for every project.
What is a typical return on investment for installing window film?
Commercial building owners often see ROI in 2–5 years due to reduced energy costs, extended HVAC life, and improved tenant comfort. In Florida and other hot climates, energy savings can be significant year-round.
Does window film qualify for utility rebates or energy incentives?
Yes. Many utility companies offer rebates for energy-efficient upgrades, including window film. Our team can help you document your project for local or national incentive programs that support sustainable building improvements.
Are there tax advantages or LEED credits for installing window film?
Absolutely. Window film can contribute toward LEED certification and help earn energy efficiency tax credits when part of a qualified retrofit. Guardian Bastille regularly partners with architects and energy consultants to assist in compliance documentation.
What types of window film solutions does Guardian Bastille provide?
Guardian Bastille provides a full range of solar control, safety and security, decorative, and specialty window film solutions for both residential and commercial applications.
While 3M™ is our preferred brand of choice—especially in coastal regions and properties near the ocean— due to its metal-free construction and corrosion resistance, we are not limited to one manufacturer.
We also offer premium products from other reputable brands including Solar Gard® (Panorama® and Armorcoat®), Hüper Optik®, Edge®, Madico®, LLumar®, and Solyx® to ensure the perfect film solution for every application and budget.
Why choose Guardian Bastille as your window film provider??
Guardian Bastille combines over 50 years of experience, 20 million+ sq. ft. of installations, and nationwide project capability with the care of a family-owned business. As a 3M Authorized Prestige Dealer and Large Project Certified Installer, we bring unmatched technical expertise and service integrity to every job.
Is Guardian Bastille a 3M Authorized Prestige Dealer or Large Project Certified Installer?
Yes. Guardian Bastille proudly holds both designations—representing the highest levels of product access, technical training, and warranty coverage available in the 3M™ window film network.
What areas does Guardian Bastille service?
We proudly service clients nationwide with strong regional coverage across Florida, New England, and the Mid-Atlantic, including major cities like Boston, Washington D.C., Palm Beach, Miami, Orlando, and Tampa. No matter where your facility is located, we deliver a local experience with national reach.
Does Guardian Bastille handle national accounts and multi-location projects?