The Most Reliable HVAC Company

About Leith Heating & Cooling

When reliability is key, call someone you know will deliver

Leith Heating & Cooling is a veteran and family-owned and operated business. Contact us to speak to a friendly member of our team who will dedicate our full resources to the quick resolution of your problem. We pride ourselves in our work and in our ethical business practices.

We always strive to keep long-lasting relationships with our customers and build that trust through honesty, quality, and craftsmanship.

Illinois Commerce Commission Certified

Leith Heating & Cooling is certified by the Illinois Commerce Commission as an energy-efficient installer. Because of this, we can be an EnergySmart trade ally with Nicor Gas and a trade ally with Com Ed for rebates.


Angie’s List rated Leith Heating & Cooling one of the top companies in the country from 2007-2017 as the proud winners of the Angie’s List Super Service Award for 10 years. Leith Heating & Cooling has also won the Kane County Chronicles Readers’ Choice Awards Representing Kane County as the Best of the Fox for 2018.

We Support Our Community

We believe in supporting our community’s greatest resource – our children – by supporting youth education and recreation.

Proud Sponsors of…
  • West Dundee’s Annual Dickens’ in Dundee
  • Dundee Township Park District Annual Father’s Day 5k Run
  • Dundee Middle School Golf Outing
  • West Dundee Heritage Festival
  • Dundee Highlanders Wrestling
  • … and numerous other organizations in our area

Our Team

As an American Standard Factory Authorized Dealer, Leith Heating & Cooling has a trained staff of professionals to serve your needs for the extreme temps in the Fox Valley Area. We continue to train and update their knowledge through continuing education and training of the latest changes in HVAC technologies. They are trained to work on every type of system and as an American Standard Dealer, we can offer top HVAC products with factory rebates at affordable prices.

Brian Leith

Brian Leith


Brian Leith, owner, and founder of Leith Heating & Cooling is a dedicated service professional. He has over 24 years of experience, installing and servicing HVAC equipment including boilers, furnaces, air conditioners, and refrigeration equipment. Brian graduated first in his class in 1996 from Environmental Technical Institute. This is an accredited vocational school that specializes in the training of HVAC technicians.

Chloe Leith

Chloe Leith

Chloe enjoys spending her time with their kids and gardening when she is not in the office.



Nica always has a smile on her face, likes to read in her off time and spend time with family and friends.



Robert has many hobbies such as running, playing the guitar and the bass. He also spends lots of time with his family!


Matt Bertone

Service Technician

Matt is an accomplished technician who works on servicing, repairing, and replacing light commercial and residential HVAC equipment. Since Matt has been with us, he has been nothing but exceptional with his work ethic and his mechanical ability.