Does Block Watch pay off? Yes it does and perhaps in way you may not have thought of. At least two insurance companies contacted have offered discounts for being a member of a Block Watch Community. Not all companies offer discounts however, it may be worth your while to check with your insurance providers for details. Coast Capital Insurance Services offers at 15% discount and Canadian Northern Shield (CNS) offered a 5% discount. In addition to being a member of a Block Watch Community, some insurance companies will offer further discounts for homes protected with an alarm system.