Connect With Us At Cosgriff Climate Control

About Our History

Cosgriff Climate Control came under new management in 2014 when Mark and Alicia Cosgriff purchased the business. Since then, they’ve provided customers in Hermantown, Proctor, Duluth, Superior and beyond with fair and efficient heating and cooling services. Our staff is not only good at what they do, but will always treat you with respect and be honest about their work. We work tirelessly to establish a trustworthy relationship in order to become your go-to business for all of your HVAC needs.


  Financing Options / Financing Application

Customer Testimonials

  Our new gas furnace and central air conditioning system was installed in November of 2014, and has performed flawlessly ever since. The team who made it all happen was friendly and well-mannered. I thought the price was fair and I took advantage of several rebates and the federal tax credit for new heating equipment. The job went smoothly and I couldn’t be more pleased with Cosgriff Climate Control.”

  Frank Leppa


  They are very good people that showed a little extra care when they were at my place working.”

  Mike McLeod

  I was very happy with the quality of work they did and how above and beyond they went. They are very nice people. I will definitely hire them again!”

  Thelma Mattson


  If you are looking for a knowledgeable, honest and efficient company to address your heating and cooling needs, Cosgriff Climate Control is the one I would recommend.”

  Dawn Marie Strom

  Cosgriff Climate Control is a very nice and helpful group. I’d hire them again! They cleaned up everything and were very respectful. Thank you!”

 Thomas Stiller

Contact Cosgriff Climate Control Today

Regardless of the time of day, we will answer your phone call and address your concerns as soon as possible. To schedule a FREE estimate or learn more about our financing options, call us or fill out the simple contact form below. We look forward to hearing from you!

Cosgriff Climate Control


5653 Morris Thomas Rd
Hermantown, MN 55810


Stay In Touch


Fax: (218) 729-7279


Monday – Friday: 8 a.m. – 5 p.m.
24/7 Emergency Services Available