Hypertension is the single most important risk factor for cardiovascular disease and death, yet blood pressure itself is highly influenced by technique and device. Hence, the target blood pressure could vary materially based on BP technique and device used. In the present study, the investigators will compare 4 different methods of measuring blood pressure in the office (casual, resting average of 3 readings with nurse present or absent for resting period, and average of 5 readings) as well as a 24 hour ambulatory measurement. The results of this study will help and enable practicing family physicians and specialists in Canada to target BP for their patients based on algorithm and method of assessment of BP they use in their offices.