The Professional Choice
For HVAC Solutions

Product Overview

Have you gone 15-20 years without upgrading your heating or cooling system? Do you notice the unit continuously running, making loud noises? Are there hot and cold pockets throughout your space? These are telltale signs that it’s time to invest in a new and improved HVAC unit.

Johnson Mechanical, LLC provides trustworthy products and highly-experienced heating and cooling installation services. If you live within a 45-mile radius of our homebase of Portage, WI (this includes folks in Wisconsin Dells and Baraboo!), you can turn us for a no-pressure, informative sales experience.

You’ll be shocked by the difference a new system can deliver!

Home Gas Boilers - Johnson Mechanical - Portage, WI
We offer services to keep you cool, stay warm, & protect your indoor air quality.

Heating & Cooling Solutions Brought to You by Rheem®

Rheem Indoor Furnaces standing next to one another in a small room

Rheem® Furnaces

Rheem® has a reputation for providing some of the most energy-efficient home heating systems in the industry. They offer a wide range of propane and natural gas furnaces — guaranteeing a solution, no matter your needs.

Raheem air conditioning unit on a faux stone block next to some dirt outside of a house

Rheem® Air Conditioners

Rheem® offers an expansive range of top-quality, innovative air conditioning products. People love Rheem® cooling products because they feature the latest technology and deliver dependable performance.

A couple sits on their black couch as a man adjust the HVAC unit in their room

Rheem® Mini Split Heat Pump Systems

Rheem® Mini Split Heat Pump Systems are the perfect solution for residential homes and small commercial buildings. This innovative system is quiet, efficient, and cost-effective.

Gas Boilers system hanging onto a wall next to a collection of copper pipes

Gas Boilers

Johnson Mechanical, LLC also offers NTI gas boilers. This is the largest collection of gas boilers on the market. Take a look, we know you’ll find the perfect solution.

Home Ventilation - Portage, WI
Johnson Mechanical, LLC has financing options to help you get the system you need for the price you can afford. Want to weigh the pros and cons of specific systems?

Please, give us a call!

Turning Your Home into a Smart Home with Home Automation Systems

Imagine being able to turn your heat or air conditioning down without ever having to leave your couch. That’s a dream Johnson Mechanical, LLC can easily make a reality. Specializing in home automation technology, we’re ready to equip your home with a smart thermostat, which can allow you to better control your energy usage and prioritize your comfort.
Thermostats - Portage, WI
Thinking about taking your temperature control system to the next level? We want to help!

Custom HVAC Units Designed to Meet Your Needs

An older woman adjusts the temperature inside of her home
We install and service a wide range of HVAC systems, including hydronic heating units. We’ll work with you to find the best heating and cooling system and ensure it’s set up with your automation system.

“I had a great experience with Johnson Mechanical. Everyone was courteous, helpful, and professional. The furnace install went smoothly, quicker than I expected. I will definitely recommend Johnson Mechanical to everyone I can!”

“It’s now cool in our shop (Stoney River) in Westfield. Bob the owner is always great, and the two guys that installed the A/C were pleasant and competent.”

The time to upgrade your system is here! Call 608-742-HEAT (4328) for more information about custom units, home automation technology, & Rheem® products.

Johnson Mechanical, LLC

2601 Portage Road
Portage, WI 53901

Get Directions

Serving Portage, Wisconsin Dells, & Baraboo

Business Hours:

Monday — Friday
7:00 AM to 4:30 PM

24/7 Emergency Service

Rheem - Johnson Mechanical - Portage, WI Aprilaire - Johnson Mechanical - Portage, WI