The Professional Choice
for Complete Comfort

HVAC Services

Whether it’s time to blast the A/C or pump the heat, you can trust Johnson Mechanical, LLC will deliver the efficient, effective service you deserve. Based in Portage, WI, we provide heating and air conditioning repair and installation services to commercial and residential clients in Wisconsin Dells, Baraboo, and beyond.
A large industrial fan
Johnson Mechanical, LLC has 40+ years of industry experience & wants to put that expertise to good use by finding a solution for you!

Stay Warm

An indoor heating unit with many pipes and readers in a basement
It’s a dreaded time of year when temperatures drop and our Wisconsin winter officially begins. As long-time industry experts, we understand the conditions better than anyone. We’ll ensure your heating system is functioning optimally, so you’ll never feel cold in the comfort of your own home or office. Customers count on us for trustworthy, prompt, affordable furnace repair and installation.
An entire indoor heating system with water heater and other pipes and readers in a tiled floored basement
Have you gone 15-20 years without upgrading your heating system? Let’s make a dramatic improvement to your environment & lower your energy bills!

Keep Cool

An outdoor air conditioning unit besides a window
When summer comes, don’t let the heat get the best of you. Johnson Mechanical, LLC offers air conditioning repair, installation, and maintenance services to keep you cool. We deliver high-value, cost-effective capabilities and genuine customer care. We understand how uncomfortable your environment can become when your cooling system is broken or barely working. Whether a simple fix will do the trick or the situation calls for a completely new unit, we won’t be satisfied until the air coming out of your unit is ice cold.
Commercial Air Conditioning units on top of a stone building
What are the benefits of upgrading your air conditioning system? System reliability, better circulation, and superior air quality for starters.

Healthy Air Systems

A dirty air filter being changed out by an HVAC technician
Are you interested in protecting your home against viruses? Johnson Mechanical, LLC are proud Aprilaire Healthy Air System™ suppliers. Our healthy air systems not only build a barrier from bacteria but also reduce allergies and asthma systems, bringing healthy air directly into your space.
A clean air filter laying sideways
Fresh air ventilation, air filtration, & humidity control… learn more about the benefits of the Aprilaire Healthy Air System™
Cold storage unit with HVAC work done by Johnson Mechanical LLC in Portage, WI

Cold Storage

When a commercial refrigerator breaks down, that can mean a huge loss in profits for a business owner. Components inside commercial coolers and freezers can malfunction leading to warming or spoiling of food, medicine, and more. We can fix or replace your unit, but timing is key! Be on the lookout for signs that your commercial refrigerator is in need of repair. Signs include: excessive frost or condensation, overheating motor, items expiring before expiration date, high electricity bills, or the unit is showing a temperature other than zero degrees.

Don’t let your faulty fridge cost you!

“Everything about Johnson Mechanical is 5 stars, from the front office to service to installers! Friendly, professional, efficient, knowledgeable, and high quality work.”

“Scheduling was quick, service was excellent. Will be returning in the fall to have them service my furnace.”

Have questions about heating, air conditioning, healthy air systems or cold storage?

Call 608-742-HEAT (4328) for answers.

Johnson Mechanical, LLC

2601 Portage Road
Portage, WI 53901

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Serving Portage, Wisconsin Dells, & Baraboo

Business Hours:

Monday — Friday
7:00 AM to 4:30 PM

24/7 Emergency Service

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