Recommended signal repeater for iPhone 6

[xl]

I have a friend who is getting poor reception in the Vancouver suburbs.  Husband has Fido coverage in the home, but there is no Telus coverage once inside.

Is there a signal booster to recommend for an iPhone 6?

[xl]

Would any of these devices work?

http://www.bestbuy.ca/en-CA/category/cell-phone-signal-booster-kits/32266.aspx