How long will I start seeing results from working out?

I am following a pretty strict diet. I weigh 145 lbs and I eat 40 grams of protein with every meal and consume an above-average amount of complex carbs with every meal; especially before and after working out. I also follow a workout plan that my old personal trainer designed for me that includes low reps and high weight that I use every other day at the gym. When will I start seeing noticeable results?