This business operated right in the heart of King George is easy to locate. They provide the name brand tires and if they do not have what you need in stock today, they can usually have it the next day.
They have been very good about taking care of flats, or low tires by repairing them when it is feasible to do so. The prices are pretty much in line with what you will find in other places but usually, you do not have to wait for hours and hours to be taken care of. Give them a try.