New York City apartment owners face a consistent trade-off: natural light and skyline views versus solar heat gain and UV damage to floors and furniture. Most window films solve one problem by creating another — dark tints block heat but kill the light; reflective films reject energy but turn windows into mirrors at night.
Solar Gard Highlight 70 is our primary recommendation for NYC residential projects because it breaks that compromise. Here is the technical reasoning behind that recommendation and a walkthrough of our professional installation process.
Watch the Full Highlight 70 Installation Process
See our team remove old film, precision-cut Highlight 70 panels, and apply edge sealant on a Manhattan apartment project.
Technical Performance: Why Highlight 70 Stands Out
The Panorama Hilite series is engineered for maximum solar rejection with minimum visual impact. Here is what separates Highlight 70 from standard residential films:
70% visible light transmission. Clear untreated glass transmits approximately 88–89% of visible light. Highlight 70 allows 70% through — a reduction most occupants cannot detect without side-by-side comparison. The apartment stays bright and the views remain unaltered.
54% total solar energy rejection. This is the critical specification. Most films that reject over 50% of solar heat require a visible tint of 40% or darker. Highlight 70 achieves 54% rejection while maintaining near-clear appearance. For NYC apartments with south- and west-facing exposures, this translates directly to lower cooling costs and elimination of hot spots near windows.
Low reflectivity (interior and exterior). Standard reflective films create a mirror effect on the glass — visible from inside at night when interior lights are on. Highlight 70 maintains low reflectance on both surfaces, preserving clear views around the clock. This matters particularly in high-rise apartments where nighttime skyline views are part of the property value.
99% UV filtration. Ultraviolet radiation causes progressive fading of hardwood floors, furniture upholstery, and artwork. Highlight 70 blocks 99% of UV rays, equivalent to approximately SPF 285 on the glass surface. For apartments with expensive finishes or art collections, this is a measurable return on the film investment.
RF Signal Attenuation: A Secondary Benefit of Metallized Film
Highlight 70 is a metallized window film — its solar rejection properties come from microscopic metal layers deposited on the film surface. A functional byproduct of this construction is attenuation of radio frequency (RF) signals, including frequencies used by cellular networks.
For apartments in close proximity to cell tower installations — common on NYC rooftops — the metallized film layer reduces the amount of RF energy passing through the glass. This is the same principle used in dedicated EMI shielding films, though Highlight 70 is optimized for solar performance rather than RF blocking specifically.
It is worth noting that the edge sealant required on metallized films (discussed below) also serves to complete the conductive barrier at the film perimeter, improving the consistency of attenuation across the entire window surface.
The Installation Process: What Professional Film Application Looks Like
Premium window film installation is not a DIY project. Incorrect technique causes bubbles, edge peeling, and premature film failure. Here is how our team handles a Highlight 70 installation.
Step 1: Old Film Removal and Glass Preparation
Most NYC apartments we service already have some form of window film — often degraded or poorly installed. Removal requires industry-standard tools: a 6-inch Triumph scraper (safer for glass than standard 4-inch blades) and Rapid Remover adhesive dissolver to break down old glue without scratching the surface.
The glass must be completely clean before new film application. Any residual adhesive, dust, or debris will be permanently trapped under the new film.
Step 2: Precision Cutting with a Film Handler
Highlight 70 is a premium product — material waste directly impacts project cost. We use a Film Handler to pre-cut each panel to the exact window dimensions before application. On this project, panels ranged across several different sizes, and pre-cutting allowed us to minimize offcuts while ensuring full-coverage fit on every pane.
Step 3: Wet Application and Squeegee Technique
The film is positioned on the glass using a soap and water solution, which allows sliding adjustment before the adhesive bonds. Once aligned, we squeegee the panel using overlapping strokes from center to edge, forcing out the solution and creating full contact between the adhesive and the glass surface.
Note on water bubbles: Small moisture pockets visible immediately after installation are normal. These are residual solution trapped under the film — they evaporate during the curing period (typically 30–60 days depending on temperature and humidity). Air bubbles, by contrast, indicate installation error and will not resolve on their own.
The Critical Step Most Installers Skip: Edge Sealing
This is where Highlight 70 differs from standard dyed or ceramic films and where many installations fail.
Because Highlight 70 is a metallized film, the metal layers within the construction are vulnerable to moisture intrusion at exposed edges. If water penetrates the film perimeter over time, the metal oxidizes — causing visible rust lines and delamination that cannot be repaired without full replacement.
Our process: we return the day after installation — once the film has settled and initial moisture has begun to evaporate — and apply a thin bead of silicone sealant around the entire perimeter of each panel. This seals the metallized layers completely, preventing moisture contact and ensuring long-term performance.
This edge seal is also a requirement for Solar Gard’s lifetime residential warranty. Without it, warranty claims on metallized films may be denied.
Highlight Series Comparison: Choosing the Right Level
Highlight 70 is our default residential recommendation, but the full series offers a range of options depending on the client’s tolerance for visible tint versus heat rejection:
| Film | Visible Light Transmission | Total Solar Energy Rejection | Best For |
|---|---|---|---|
| Highlight 70 | 70% | 54% | Maximum clarity with strong heat rejection |
| Highlight 55 | 55% | 56% | Balanced performance — slight visible tint |
| Highlight 40 | 40% | 61% | Higher heat rejection, noticeable tint |
| Highlight 25 | 25% | Highest rejection | Maximum heat block, most reflective |
For south- and west-facing apartments in Manhattan, Highlight 70 handles the majority of comfort issues. Highlight 40 is a strong option for glass walls or floor-to-ceiling windows with extreme afternoon exposure.
Frequently Asked Questions About Window Film for NYC Apartments
Will Highlight 70 change the look of my windows?
Minimally. At 70% light transmission, the film is nearly invisible when professionally installed. Interior and exterior reflectivity remain close to untreated glass levels, so the window appearance and nighttime views are essentially unchanged.
How long does window film last in a NYC apartment?
With proper installation and edge sealing, Solar Gard Panorama films carry a lifetime residential warranty against peeling, bubbling, and discoloration. In practice, professionally installed metallized films last 15–25 years before requiring replacement.
Does window film affect my cell phone signal?
Metallized films like Highlight 70 do attenuate RF signals passing through the glass. In most NYC apartments, cellular signal enters through multiple surfaces (walls, doors, non-filmed windows), so the impact on phone reception is typically minimal. If full-signal coverage is a concern, discuss your specific exposure with our team before installation.
Can I install window film myself?
Technically possible, but not recommended for metallized films. Highlight 70 requires precise cutting, bubble-free wet application, and a mandatory edge seal to protect the metal layers. Incorrect installation voids the warranty and typically results in visible defects within the first year.
How much does Highlight 70 installation cost in NYC?
Pricing depends on the number and size of windows, film removal requirements, and building access logistics. Contact Total Window Service for a project estimate — we assess your windows on-site and recommend the appropriate Highlight level based on orientation and exposure.