Serving Hamilton and Surrounding Areas

Niemann Heat & Air-logo HVAC units

When you call Niemann Heat & Air for your heating and cooling system purchase, you're putting over 20 years of industry experience to use.


Looking for a FREE estimate? Just contact us, and we'll be more than happy to give you a no-obligation quote on the products you need.

Get great rates on new construction work

Need a bit of help locating the heating or cooling system that best fits your individual needs? You can trust the highly experienced professionals at Niemann Heat & Air - licensed dealers of top-of-the-line Lennox and Amana products - to point you in the right direction!

Let us lend a hand at your new construction site. From installing heating and cooling units to providing proper unit and duct sizing for your space, you can count on us for quality work at competitive rates. You can also trust us to change and replace units as needed.

Dependable duct replacement

In addition to sales of heating and cooling systems, you can also trust us for complete duct replacement work at your home or business.


We're so confident you'll be impressed with our duct replacement service that all our work comes with a satisfaction guarantee!

Expertise you can trust

Residential and Commercial HVAC System Sales

residential HVAC unit