Mark Trenka received the highest level of service achievement in the real estate industry, Quality Service Certified® Platinum, in recognition of earning 100% client service satisfaction in 2013, 2014, and 2015 as measured by Leading Research Corporation.

CENTURY 21 Trenka Real Estate received the Gold Star Award in 2011, 2012, 2013, 2014, 2015, and 2016 from the Denver/Boulder Better Business Bureau which is presented to accredited Better Business Bureau Member Companies that have shown outstanding customer service for three consecutive years.


Mark Trenka, 2011 Denver Board of REALTORS®, REALTOR® of year

Mark Trenka, 2010 Denver Board of REALTORS®, Broker/Manager of the Year

In 2009, CENTURY 21 Trenka Real Estate was recognized for having the highest volume of production among realty firms of 11-30 employees by the Denver Board of REALTORS®.


“I have worked with Trenka since 1997 on several transactions. They are an excellent company.”

“I appreciated Mark’s professionalism, candor and knowledge.”

“I felt Mark did a great job getting this deal to close with a difficult buyer.”

“We have bought and sold property with Mark. He has been outstanding.”

“Absolutely outstanding experience working with Karen! I would do it again any time.”

“Mark was truly one of the best professionals I’ve worked with. I would recommend him to anyone I know.”

“Tara has helped us twice with buying and selling homes. She always had great ideas that we had never thought of and we have been in the home of our dreams since she helped us find it 7 1/2 years ago. We would have never been able to get what we wanted without her help and expertise.”

“We worked with Tara as both a buyer and seller of a house. Tara helped us find a good house that we enjoyed in a good location and within our budget. When we sold the house we were able to sell and close within six weeks… Tara assisted us with tips on how to market the house. I would recommend Tara to anyone who needs to purchase or sell real estate, she is a true professional.”