Most tint guides open with the benefits and stop there. The decisions you actually live with come later: what film went on the glass, how the first week was handled, and what you clean it with in year three. This is the practical version.
The four films sold in the GTA
- Dyed: colour in the adhesive. Cheapest, looks right for a season, then fades to purple and rejects little heat.
- Metalized: a metal layer that does reject heat, but can interfere with cell and GPS reception and looks mirror-like outside.
- Carbon: a matte look with decent infrared rejection and no signal problem. Middle of the market.
- Ceramic: a nano ceramic layer that rejects infrared heat with no metal, stays optically clear and does not fade.
We install ceramic only, because it is the only film still performing in year eight. The word itself is the most abused in the industry, so ask for the brand and product line, not the category. Numbers beat adjectives: visible light transmission, solar energy rejected, UV rejection. No spec sheet means you are buying a colour, not a film.
Shade is a comfort decision
The numbers count down from clear. A 35 percent film lets 35 percent of light through, so lower is darker, and film multiplies with your factory glass: 35 percent on 70 percent glass measures closer to 25 percent on a meter.
What we install most is 35 percent on the front doors and 20 percent on the rear, which reads factory and stays usable at night. Our comparison of 35 versus 20 percent tint covers the difference in a minute.
The first week decides how it ages
Film goes on wet. Water has to leave through the film, which takes days in summer and longer in cold weather. While that happens:
- Keep the windows up for two or three days. Cold air on a fresh edge is the one thing that causes lifting.
- Expect a light haze and small moisture pockets. Normal, and they clear on their own. Our tint curing guide walks through the timeline.
- Do not wash the car for a week, press the edges or drop the windows, even at a drive-through.
Cleaning that does not wreck the film
Film is tough, and glass cleaner is not always its friend. Two rules cover it:
- No ammonia. Blue glass cleaners attack the adhesive over time. Use water with a drop of mild soap, or an ammonia-free cleaner, on a microfiber cloth.
- Nothing abrasive. No scouring pads, razor blades or paper towels on dry glass. Wipe with light pressure instead of scrubbing a mark.
Keep the pressure washer away from the window edges, where a jet can lift a corner in a second.
Winter is the season that tests film
Cold does not damage film, the tools do. Use a plastic scraper, never metal, and push snow instead of chipping. Keep the blade off the film edge and wipe salt off the lower corners. Our winter tint and ice scraper guide has the full routine.
What voids the warranty
Bubbling, peeling, cracking and colour shift are covered. Ammonia cleaners, blades on the film, removal by another shop and suction mounts left on for months are not. Read that list once and the film outlives most of the cars it goes on.
DIY kits and professional installation
A kit costs less than a full tint and skips the two things that decide the result: prep and heat shrinking. Rear glass has defroster lines and a compound curve, so the film has to be shrunk without creasing, which takes a heat gun and a few hundred windows of practice. The usual DIY result looks fine from two metres and creases at the edge, where lifting starts. If you are seeing bubbles, our tint bubbles guide explains which ones matter.
Ontario tint rules and what it costs
Ontario does not set a tint percentage for side windows. It enforces a clear view, and police can meter the glass if they think it obstructs the driver. Rears can go to 5 percent, fronts have to keep you clearly visible, and 35 percent is what we install up front. The windshield stays clear. The detail is in our Ontario tint rules guide.
Ceramic packages are $99 for the two front windows, $179 for a sedan or coupe, $199 for an SUV and $239 for a van, with prep and warranty included. Old film removal is quoted separately. Full numbers sit in our Toronto tint pricing guide.
Frequently asked questions
How long does car tint actually last?
Quality ceramic film lasts the life of the vehicle with normal care. Thin dyed films fade and bubble within three to five years.
Can I clean tinted windows with regular glass cleaner?
Not if it contains ammonia. Use water with a drop of mild soap, or an ammonia-free cleaner, on a microfiber cloth.
Will tint affect my phone, GPS or radio?
Ceramic film contains no metal, so it does not. Metalized films can.
Is 35 percent legal in Ontario?
It is our standard up front and keeps the driver clearly visible. Rears can go to 5 percent, and the windshield stays clear.
Get the film and the care right
Tint by Designs does window film and nothing else. Automotive work happens at our North York shop by appointment, for drivers from Toronto, Vaughan, Thornhill, Richmond Hill, Markham, Mississauga and the rest of the GTA. More on our ceramic car tinting page.
Send your make, model and year, call or text 437-331-5379, or use our contact page.
Tint that lasts
Send your make, model and year. We tell you the film, the shade and how to look after it.




