Northern Indiana's Furnace and Heating Experts

Furnaces are an important component to being comfortable during the winter. We recommend servicing an HVAC system twice a year, once in the spring before utilizing the air conditioning and once in the fall before using the furnace.

Here at Gnoth and Lukowski, we offer multiple services tied to furnaces such as tune-ups, repairs, and installations, as well as 24/7 emergency HVAC services. We use only the best with Goodman products in our full installations however we provide tune-ups and repairs to many systems. 

Frequently Asked Questions

An HVAC system should be serviced twice a year once in the spring (before using the air conditioner) and once in the fall (before using the heat).

HVAC tune-ups can pay for themselves by catching issues before they become a major problem. This prevents any issues and helps keep costs down.

An HVAC tune-up is relatively inexpensive. Without seeing and/or knowing the system we can’t give an exact estimate, reach out to us and we’d be happy to help. At Gnoth and Lukowski we offer a preventative maintenance package.

Create a clear path to the furnace/HVAC system so we can easily perform the diagnostic checks and maintenance. We will also need some space for our tools.


A trained technician will arrive and once shown the system, will begin diagnostic/replacement procedures.


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