A 52-year-old man has three separate automated office blood pressure readings over 2 months: 138/88, 136/86 and 140/90 mm Hg, all taken with a validated device after 5 minutes of rest. He has no diabetes, chronic kidney disease or clinical cardiovascular disease; his global 10-year CVD risk is intermediate but not high. According to the 2025 Hypertension Canada guideline, what is the most appropriate next step?