Going rate for window tinting?

[designforlife]

I'm looking at getting the rear boot window and two rear quarter windows tinted on my integra DC5, nothing fancy, just a black OEM level tint (70% i guess).

What sort of price should I be paying in the south east (home counties)? Never had window tinting done so i'm clueless as to pricing.

thanks!

[designforlife]

I've had a quote of £130 which seems fairly reasonable, and this is one of the "go to" places locally.