Rules of Engagement

  • If Dean Del Mastro is your MP, introduce yourself as a constituent—MPs tend to put much more stock in letters from inside their districts.
  • Be brief and respectful.
  • Try to ask a specific question.

Paper & Voice


Dean Del Mastro
House of Commons
Ottawa, ON
K1A 0A6

(No postage required!)

Phone: 1-613-995-6411
Fax: 1-613-996-9800

1875 Lansdowne St W
(Main Office)
Peterborough ON K9J 8M7
Phone: 1-705-745-2108


You can reach the office of Dean Del Mastro at