January 28, 1959 – January 27, 2026
Grant Douglas Armstrong passed away peacefully on Tuesday, January 27, 2026, just one day shy of his 67th birthday.
Grant was born in Scarborough, Ontario, and grew up in Stouffville, Cannington, and Port Perry. No matter where he lived, his roots and memories were always deeply tied to the communities that shaped him.
Grant was married to Louise Armstrong for 14 years and remained connected to his family throughout his life. He was a devoted father to his son, Brandon Armstrong (fiancée Ayisha Borrelli), and his daughter, Erin Armstrong (fiancée Taylor McComb). He was a proud Papa to his three beloved grandchildren: granddaughters Lauren and Remi, and grandson Emerson. Becoming “Papa” was one of the greatest joys of his life.
He is remembered by his siblings: Kim Armstrong, Karen Underhill, Nancy Rumford, Ron Armstrong, Sharon McGrath, Stacey Devlin, and Brad Rumford, along with extended family and many dear friends.
Grant dedicated over 30 years of hard work to SPM Tech, where he built lasting friendships and earned the respect of those around him. For 16 of those years, he had the special privilege of working alongside his son Brandon — something he was deeply proud of.
Grant will be remembered for his big personality. He was funny, stubborn, hard-headed in the most endearing way, enthusiastic, and always ready to tell a story — especially if you had the time to listen. He had a deep love for Formula 1 and NASCAR, rock music that could fill a room, woodworking with his children, cooking for the people he loved, and above all, his family.
His presence was larger than life, and the stories he told will live on in the memories of those who knew him.
Grant leaves behind a family who will carry his humor, his strength, and his passion forward.
He will be deeply missed and forever loved.
The family will receive their friends at Egan Funeral Home, 203 Queen Street South (Hwy. 50), Bolton (905-857-2213) for a Memorial Reception on Saturday, February 28 from 12 – 3 o’clock, with words of remembrance beginning at 12:30pm.
Condolences for the family may be offered at www.EganFuneralHome.com
Mohammad HayatCA
Lost a good friend. He will be missed. RIP Grant. He was specially very proud of his family. He loved fast cars. He was hard working and had a great sense of humour. Condolences to the family.
Avery Gaipo
Sending my deepest condolences to the Armstrong family during this difficult time. Keeping you all in my thoughts and prayers.
carlos velez
Sending our deepest condolences to the Armstrong family, our next door neighbors for years.
Had the privilege to work with Grant at SPM where he helped me to get a job and enjoyed his friendship. keeping the family in our thoughts and prayers. RIP.
Laurel DiMaso
Sorry for your loss, Brandon. Our deepest condolences to you and your family
Adrian Weglo
My condolences Brandon and Erin and the whole Armstrong family.
Suzanne Szypka
Erin, Brandon and family: our thoughts and prayers are with you as you navigate this difficult time. So sorry for your loss.
Suzanne and George Szypka
RODNEY MALTAIS
We are deeply saddened to hear about Grant’s passing.
A 30-year milestone is a testament to an incredible career, and his dedication and contributions to our team will not be forgotten.
Our thoughts are with the Armstrong family during this difficult time
Rodney & Joyce Maltais, and family.
Joyce Bower
My sincere condolences to all the family.
Ranjit Panesar
My sincere condolences to Armstrong family. Lost a very good friend.