Sandra Lee "Sandy" Kastner Profile Photo
1949 Sandy 2025

Sandra Lee "Sandy" Kastner

June 19, 1949 — December 4, 2025

Denver

Sandra Lee Kastner, lovingly known as Sandy, was born in Denver, Colorado on June 19, 1949. She attended Woodland Park College High School and continued her education at Aurora Community College. Sandy went on to build a long and successful career with the Federal Government in the Department of Defense, where she served as a Financial Specialist. Her dedication, attention to detail, and strong work ethic defined her professional life until her retirement in 2003.

On June 20, 1981. Sandy married the love of her life, Michael Rae Kastner, at The Little Chapel in Heritage Square in Golden, CO. Together they created a love story that others only dream of, rooted in deep friendship, unwavering loyalty, shared laughter, and a bond that only strengthened over time. Mike and Sandy’s hearts were always open, especially to their family and to the many dogs they lovingly cared for over the years. Their home was filled with warmth, devotion, and the gentle joy that Sandy naturally brought to every space she entered. They celebrated 44 years of marriage.

Sandy was preceded in death by her father Bud Pierson, her mother Geraldine Pierson, her sister Kathy Bender, and granddaughter Morgan Kastner.

She is survived by her beloved husband Mike Kastner, who remained her constant source of love and strength.

She is also survived by: Stepson Michael Kastner (grand children Logan, Brianna and Michael Kastner), Stepdaughter Stacey Kastner Short (spouse Joe Short; grand children Gavin and Graham Short), Brother in Law Donnie Kastner; Niece Becky Kastner Sassaman (spouse Nate Bernstein; great-nephew Max Sassaman; great-niece Madison Sassaman), Nephew Andrew Kastner (spouse Paula Kastner; great-niece Kailee Carver; great-nephew Jack Kastner), Nephew Logan Kastner, Nephew Steve Bender (spouse Danielle Bender).

Sandy’s gentle spirit, her kindness, and her deeply spiritual heart touched everyone blessed to know her. She lived with grace, compassion, and a quiet strength that brought comfort and joy to all who loved her.

In honor of Sandy’s favorite color, her family kindly invites guests to wear purple to her services.

In memory of Sandy, please consider a donation to the North Huron Animal Hospital, a cause close to her heart. There unfortunately isn't a link to make a donation, but you can call and tell them you are donating to Mickey's Fund in honor of Sandy Kastner. 303-427-4247

Rosary and Viewing:

December 17

Rosary at 5:00 PM

Viewing 5:30–8:00 PM Horan & McConaty

9998 Grant St, Thornton, CO 80229

Funeral Mass:

December 18 at 10:30 AM

Immaculate Heart of Mary Catholic Parish

11385 Grant Dr, Northglenn, CO 80233

To order memorial trees or send flowers to the family in memory of Sandra Lee "Sandy" Kastner, please visit our flower store.

Service Schedule

Upcoming Services

Rosary

Wednesday, December 17, 2025

5:00 - 5:30 pm (Mountain (no DST) time)

Add to Calendar

Horan & McConaty Funeral Service and Cremation - North Metro/Thornton

9998 Grant St, Thornton, CO 80229

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

Viewing

Wednesday, December 17, 2025

5:30 - 8:00 pm (Mountain (no DST) time)

Add to Calendar

Horan & McConaty Funeral Service and Cremation - North Metro/Thornton

9998 Grant St, Thornton, CO 80229

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

Funeral Service

Thursday, December 18, 2025

Starts at 10:30 am (Mountain (no DST) time)

Add to Calendar

Immaculate Heart of Mary Catholic Parish

11385 Grant Drive, Northglenn, CO 80233

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

Guestbook

Visits: 7

This site is protected by reCAPTCHA and the
Google Privacy Policy and Terms of Service apply.

Service map data © OpenStreetMap contributors

Send Flowers

Send Flowers

Plant A Tree

Plant A Tree