We are 3m authorized dealers in the area. 3M™ Window Film products are manufactured by 3M Company. 3M holds the original window film patent and offers over 50 years of proven window film performance in all climates and conditions.
3M is the best film that exist and the 3M's Crystalline line is more efficient, meaning a lighter shade can still be more effective than a dark shade of the cheap stuff, that also will fade over time.
Also be aware that some dark metallic tints will interfere with your cell reception. Films are made with metallic elements to help reflect light, interfere with things like cellphone and radio reception.
3M Crystalline is non-metallic so if doesn’t interfere with radio reception, reduces heat up to 60%, rejects IR radiation by 97%, blocks 99.9 UV protecting your skin and your interiors, it never turns purple and reduces glare enhancing visibility at night and has a limited lifetime warranty.