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About Costello & Dehart Dental Excellence of Arlington Heights, IL

Dr. Ernie and Dr. Dehart posing and smiling
Dr. Ernie Costello and Dr. Jay DeHart

With more than half a century serving the Arlington Heights community, our team is dedicated to continuing to build our legacy of quality care for patients of all ages. Our family of dentists and knowledgeable team work hard to make every patient we treat feel welcome, relaxed, and in good hands from the moment they walk through the door. That’s why so many of our patients have been coming to us since their very first checkup. Our dentists, Dr. Ernie Costello and Dr. Jay DeHart, take time to get to know every patient and work as partners with those they treat to ensure that every procedure is the right one for you. Contact our team to find out more today.


Community Involvement

One reason Arlington Heights patients have trusted the Costello family with their oral health care for more than 50 years, is that we’re committed to making our community a great place to live. From volunteering at community events and coaching local youth sports teams to hosting thank you events for our patients, we’re dedicated to giving back and showing our love and appreciation for Arlington Heights. Watch our videos below to find out more.

Our Friendly Team

Dentistry from the Heart

Patient Appreciation Event

Patient Appreciation Drawing

Patient Appreciation Evening

Our Family

Two girls smiling in front of Christmas treeTwo girls smiling with city skyline in backgroundTwo boys smiling in dental chair