Up to
98%
Heat Reduction

Castro Valley, California
Planning car window tint in Castro Valley? Start with California's rules for each window and vehicle type, then compare the exact film and shade you want. This guide helps you understand the legal limits before you send a quote enquiry.

Tint that does not meet California requirements may lead to a citation and a requirement to correct it. The outcome depends on the violation and the authority involved. Check the current rules before installation, and address any notice you receive by its stated deadline.
Noncompliant film may need to be removed before you choose a replacement. An experienced installer can assess the glass and adhesive; check California's rules before selecting a new shade.
California applies different tint rules by window position and vehicle type. Review the passenger and multipurpose vehicle diagrams below, then check the current requirements before choosing a film and shade.
Passenger Vehicles
Passenger vehicle rules address windows separately, so a shade permitted in one position may not be permitted in another. Review the diagram and confirm the current California requirements for your vehicle.
A non-reflective tint / sun strip, is allowed 4 inches from the top as long as it does not go past the AS-1 line on your windshield.
The California law allows 70% of light visibility for front side windows.
The California law allows any shade of light visibility for rear side windows.
The California law allows any shade of light in visibility for the rear window.
Ready to discuss film for your car?
Request a Quote
Passenger Vehicles
Hatchback, Sedan, Coupe, Station Wagon
Multipurpose Vehicles
Trucks, vans, and SUVs may fall under multipurpose vehicle rules. Use the diagram to review the requirements for each window, then confirm how your vehicle is classified before selecting film.
A non-reflective tint / sun strip, is allowed 4 inches from the top as long as it does not go past the AS-1 line on your windshield.
The California law allows 70% of light visibility for front side windows.
The California law allows any shade of light visibility for rear side windows.
The California law allows any shade of light visibility for rear window tint.
Ready to discuss film for your truck, van, or SUV?
Request a Quote
Multipurpose Vehicles
SUV, Van, Truck
Check current California requirements and confirm compliance with the appropriate authorities.
Kepler IR and IR+ nano-ceramic films offer shade choices for managing solar heat. Compare the exact film's light transmission and heat performance, then check its shade against California's rules.
Up to
98%
Heat Reduction
Up to
99%
UV Protection
Up to
96%
Glare Reduction
Review
Warranty terms
Browse the published town guides A to Z. These are information pages and do not confirm a dealer, address or service area in each town.
California town pages
Browse the published guides for California. These are page counts, not a count of verified dealers or confirmation of service availability.

Our Nebula film delivers superior privacy and heat rejection through its intense darkness. This delivers superior protection and a sleek, elegant look.
Check the rules first
Explore our films in a 360-degree view, aiding our Castro Valley window tinting clients to pick the best tint shade. View our varietyRead the guide.
Once you've reviewed the tint rules, send a quote enquiry for your vehicle. Ask a local tinter whether they carry Kepler film or can get it.


Explore California

Tesla Film Options

Automotive Film

Film for Buildings
The right automotive film can make bright drives more comfortable and change the look of your vehicle. Start with the windows you want to tint and the effect you want, then compare film specifications and the applicable California rules.
How Kepler works
Kepler makes the film, not the tint job. Independent tinting businesses install window film. For a project in Castro Valley, California, ask a local tinter whether they carry Kepler film or can get it, then arrange the work directly with that shop.
Start your quote requestFilm availability and installation services vary by independent shop.
Kepler makes automotive and architectural window film, from everyday tint to nano-ceramic.
Independent tinting businesses install window film. Ask a local shop whether they carry Kepler film or can get it.
Share your project details, then ask an independent local tinter whether they carry Kepler film or can get it.
Check the current official tint rules and enforcement guidance for your vehicle. If you receive a citation, follow the instructions on that notice and confirm any required action with the issuing authority. Do not rely on this page for a penalty amount or a prediction about the outcome.

Nearby
Review nearby city pages connected to Castro Valley, California when comparing local tinting guidance and legal tint resources.
All California townsAsk a local tint shop whether they carry Kepler window film or can order it for your installation.
These Google listings are independent businesses. Contact each shop to confirm whether it installs Kepler film; appearing here does not mean it is a Kepler dealer.
Enter your town or ZIP code to find shops close to you.
Maps and business listings are provided by Google. Google Maps terms · Google privacy policy