Предлагаю установить шлагбаумы на въезде во двор. Узнавала стоимость в одной фирме (просто в поисковике набрала). Стоимость с установкой (с фундаментом)..
schlagbaum.spb.ru. ЖКХ Онлайн. "Форума нашего дома" на странице ЖКС-2.
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