What matters on a Sienna
The Sienna has bonded quarter glass — the small fixed panes behind the rear doors. They are fiddly, they are frequently skipped, and a car with tinted doors and untinted quarter panes looks unfinished from three cars back. Ours are cut from the vehicle's own computer pattern along with everything else.
California's tint law, and where the Sienna sits in it
The law is the same for every car and it is stricter than most states. Front side windows must let through at least 70% of visible light, measured as glass and film combined. The windshield may be tinted only along the top four inches, at the AS-1 line. Rear side windows and the rear windshield have no darkness limit at all.
That last sentence is why a Toyota Sienna can look properly finished and still be legal: go as dark as you like behind the B-pillar, keep the front doors light, and the car passes. A shop offering to put 20% on the front doors of your Sienna is offering you a fix-it ticket.
The trick people miss is that darkness and heat are different problems. Heat is carried by infrared, not by visible light. A legal 70% nano-ceramic film on the front doors rejects far more heat than an illegal 20% dyed film — you stop paying for darkness and start paying for the thing you actually wanted.
Film choice and price for a Sienna
We fit two films. Advanced Premium Carbon from $180 contains no metal, so it never interferes with phone, GPS, keyless entry or tyre-pressure sensors, and it will not fade to purple the way dyed film does. USA 5G Series nano-ceramic from $240 adds serious infrared rejection, which is what keeps the cabin cool at the same visible darkness.
On a Toyota Sienna kept in a garage, carbon is genuinely enough and the ceramic upgrade is largely wasted. If it parks outside at home or at work, buy the ceramic.
Tinting runs $180–$300 overall depending on film and vehicle. A minivan like the Sienna has a lot of glass, so it sits toward the upper end. Old film that needs stripping first is quoted on top — see tint removal.
The first week after installation
Leave the windows up for three days. The adhesive is still bonding, and the top edge is the vulnerable part — rolling a window down drags it against the door seal and peels it. In cold or damp weather give it five days.
You will see a slight milky haze and possibly small soft water pockets for the first week or two. That is the mounting solution evaporating and it clears on its own. Hard-edged bubbles that never change shape are contamination rather than moisture, and those are worth a phone call.
From then on: never use an ammonia-based glass cleaner. Most household blue glass cleaners are, and ammonia dissolves film adhesive. Ammonia-free cleaner or plain soapy water, on a microfibre cloth, wiping the top edge horizontally.
Need this done rather than explained? There is no shop to drive to. We come to wherever your car already is — your driveway, your workplace car park, an apartment lot, or the side of the road it stopped on — anywhere in greater Sacramento, with no call-out fee and no mileage charge. Give us the year, make and model and you will have a firm price before the call ends.