May be he is a prehypertensive. Subtle lifestyle modification can avoid medication.
Regular 30 min brisk walk
Good sleep
Vegetarian protein and fibre rich diet
Avoid caffeine after 6pm
Low salt diet
No bakery products
Most importantly avoid stress
Next Steps
Follow it religiously for 2 months. Re check BP if still continues to remain in this range then do ECG, ECHO and start medication.