Heating and Air Conditioning Professionals

We’re a full-service HVAC company serving South Bend, Mishawaka, and the surrounding area since 1988. We pride ourselves on always providing excellent customer service, which is why our company motto is “As Good As The “Big Guys” Just A Lot Less Money!” Our level of care, along with fair prices, is what keeps our clients coming back.

Formerly Gnoth & Naragon, our company continues to be locally owned and operated. Gnoth & Lukowski is the go-to choice for clients’ commercial and residential refrigeration and heating services!

See what people are saying...

Linda DeCicco
Read More
When things went wrong with my furnace, AC and water heater over the years, this company came to the rescue. Scott Lukowski and Daniel Hodges just wrapped up a tricky AC installation. I thank them both.
Chrissy Basney
Read More
This customer left no review.
Nic Bradley
Read More
Scott and his team were awesome! Went above and beyond to make sure everything was excellent. Great service at an affordable rate!
furnace blowing cold air

Why Is My Furnace Blowing Cold Air? There is a certain panic that comes with the blowing of cold air out of …

How to Troubleshoot and Fix a Furnace

Furnace Not Igniting or Heating? How to Troubleshoot and Fix a Furnace It can be very worrisome when your furnace isn’t igniting …

Effectively Use Your Air Conditioner

How to Effectively Use Your Air Conditioner Tips to Save Money & Stay Cool If you’re wondering how to get the most …

How Air Conditioners Actually Work

Air conditioners are one of the most important appliances in any home. They keep us cool and comfortable during the...