Mishawaka's 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!

A Name You Can Trust in Heating and Cooling...

Heating & Furnaces

Heating & Furnaces

Here at Gnoth and Lukowski, we offer multiple services tied heating such as furnace tune-ups, repairs, installations, and emergency HVAC services.
Learn More

Cooling & Air Conditioning

Cooling & Air Conditioning

Here at Gnoth and Lukowski, we offer multiple services tied to air conditioning such as tune-ups, repairs, installations, and ductless mini split systems.
Learn More

Water Heaters

Water Heaters

Life without hot water can feel miserable. That’s why we work hard to get your water heater repaired or ordered and installed in a matter of days!
Learn More

Hear what our customers think...

Mike
12/24/2022
Read More
He came to my home about 4 years ago and fixed my furnace for 150 dollars and everybody else wanted to charge me for a new furnace for 10,000 dollars, that pretty much sums it up.
Geren
11/14/2022
Read More
Gnoth and Lukowski has serviced our business for years; since back in the Gnoth and Naragon days. Scott really knows his stuff! It's nice to do work with a business where you have direct access to the owner. The service is beyond my expectation. You can trust Gnoth and Lukowski for all of your heating and cooling needs!
Ashli McCarty
10/18/2021
Read More
They were very friendly and prompt with responding. Scott came out himself to look at my furnace because they were booked for the week and so we wouldn't be cold.
Teresa Goddard
10/10/2021
Read More
Very prompt and honest and fair.
Jordan Hagedorn
10/1/2021
Read More
Thank you for the New A/C and furnace tune up. Always very professional and knowledgeable. Highly recommend.
Nic Bradley
3/18/2016
Read More
Scott and his team were awesome! Went above and beyond to make sure everything was excellent. Great service at an affordable rate!
Previous
Next
Visit Page

Check out our HVAC knowledge center...

Why does my HVAC smell musty?​

Why Does My HVAC Smell?

•
January 6, 2023
•
HVAC Tips, Furnaces

Why Does My HVAC Smell Musty? HVAC stands for heating, ventilation, and air conditioning. These are the systems that pull air from …

furnace blowing cold air

Why Is My Furnace Blowing Cold Air

•
November 25, 2022
•
HVAC Tips, Furnaces

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

How to Troubleshoot and Fix a Furnace

•
October 14, 2022
•
HVAC Tips, Furnaces

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

•
September 16, 2022
•
HVAC Tips, Air Conditioners

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

Follow us on socials...

Gnoth & Lukowski Heating & Air Conditioning LLC