Heating, Cooling & Electrical Services

Proudly Serving Oconomowoc & Surrounding Areas

Customer Focused
Expert Technicians
Free quotes

Services

For all your home Comfort Needs

Cooling

AC repair, replacement, and maintenance

Heating

Heating repair, installation, and maintenance

Air Quality

Air purification and humidity control

Electrical

Generators, panels, outlets, switches & more

Contact Us Today!

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What to Expect From Pat’s

Step 1

We Answer the Call

From the moment we pick up the phone or get your online request, our whole team is working hard to get a technician out to your home.

Step 2

Our Pros React Quickly

We don’t waste any time when locating and diagnosing the issue with your heating, cooling, or electrical system.

Step 3

You Get Peace of Mind

We’ll communicate every step of the way and provide the best solution for your needs to ensure you’re satisfied and comfortable again.

What to Expect From Pat’s

Step 1

We Answer the Call

From the moment we pick up the phone or get your online request, our whole team is working hard to get a technician out to your home.

Step 2

Our Pros React Quickly

We don’t waste any time when locating and diagnosing the issue with your heating, cooling, or electrical system.

Step 3

You Get Peace of Mind

We’ll communicate every step of the way and provide the best solution for your needs to ensure you’re satisfied and comfortable again.

Reviews

See What Your Neighbors Are Saying

Kristie T.

We have been using Pat’s Heating and Air for over 20 years! Every single time they are punctual, and so knowledgeable in what they do.

Robert S.

Totally a 5 star experience! Pat’s Heating had installed our first A/C 33 years ago and their reputation speaks for itself.

Lynda V.

Arrived promptly. Courteous. They made sure that everything was back in place after the completion of a new HVAC system.

Duane N.

Outstanding service. They came out the same day during a prolonged outage and quickly diagnosed and fixed our standby generator

Heating, Cooling & Electrical Services You Can Rely On

Keeping Wisconsin Residents Comfortable Since 1989

At Pat’s Heating & Air Conditioning, we combine hard work, skilled craftsmanship, and an uncompromising commitment to quality to help you get the comfort you want at a cost that makes sense. To us, you’re never just a number. Every job is a chance to go beyond what you expect and make your daily life better. We’ve grown one customer, one service call, and one installation at a time. Our commitment to excellence at every customer interaction has allowed us to expand our facilities and welcome more dedicated team members. We see every HVAC and generator job through to the end, leaving no detail overlooked.

Our team handles new HVAC installations, retrofits, seasonal maintenance, emergency repairs, and indoor air quality products. We’ll walk you through the best options available and give you an honest, expert opinion on whether repair or replacement is the smarter move. When replacement is the right call, we recommend only high-efficiency systems that pay for themselves through energy savings. We repair and maintain every make and model of HVAC equipment, and we recommend only products with a proven record of efficiency, comfort, and humidity control. Since 1989, we’ve proudly served Lake Country.

Our expertise also extends to generators, including installation, maintenance, and repair. We take the time to understand your specific requirements before recommending a solution that fits your needs.

Our promise is “Service That Exceeds Your Expectations.” Because HVAC technology evolves quickly, we invest in ongoing training and education for our technicians, so you get current, reliable advice. We’re proud that so many of our people have stayed with us over the years and helped build the company into what it is today.