Most wireless network repeater packages will give you two routers. One serves as your main router for the main signal. The other amplifies and retransmits it. You can also buy single-router repeater setups that will let you use your current equipment as is. Either way, you want the repeater package that offers the power to reach the range and coverage you need.
However, all that power would be worthless if you placed them in wrong location. That is why you should conduct a Wi-Fi survey to figure out your current Wi-Fi coverage. A quick and efficient way to do such as survey is with our NetSpot app. NetSpot will reveal where you have signal interference, dead zones, and the prime locations for all your wireless networking devices.
A survey will not take long either. You can do it with any wireless Mac or Windows device with just a few clicks. In the end, you will have both the repeater power, location, and signal strength requirements you need.