Reliable HVAC Professionals

About Us

Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available 24/7 365 days a year to handle all of your all of your heating, cooling, and ventilation needs. Our technicians are trained on all makes and models.  We strive to exceed your expectations by ensuring that each of our customers receives individualized service.


Individualized HVAC Options

We will work with you to find HVAC solutions that fit your heating and cooling needs. We will be the first ones to say ‘every home is different’  We will provide you with a full consultation to explain all of your available options so that you can choose the repair or system that’s right for your home or business.

Upfront Pricing

No hourly pricing! We offer a flat rate price, whether it takes us an 1 hour or 3 hours whatever the price we quoted you is what we charge. No hidden fees, No “oh we didn’t see that there”. Upfront honest pricing!

Customers Are Talking

Call On Time Heating spoke to Shane round 6::30 in the evening came out around 7:30 same night diagnose the problem quickly burnt motherboard, Furnace was 24 years old So he suggested putting a new one in I thought it was the right decision to make fair price very knowledgeable service technicians great work clean prompt service no pressure sale I’d recommend them to friends, families, and anyone needing Furnace repair.

Mike Molina

Mike Molina

This was 100% without a doubt the BEST choice I made. I had an initial company come out and tell me I would need a whole new furnace and left without any heating anything. Shane came out at 11:45 PM and not only guaranteed I would have heat but found the problem in less than half an hour. The whole fix was only $100! I strongly recommend their maintenance plan as well. They are the most personable and caring trade company I have dealt in my life and I will be recommending them to everyone I know!

Max Cross

Max Cross

I highly recommend Shane and his team. Shane was informative and did not pressure me when I made my decision of fixing my furnace versus replacing it. He and his team were prompt, helpful, polite and cleaned up completely when they finished installing the new furnace. They made sure I knew everything about the furnace and the new thermostat before they left. Thank you, Shane and your team for your awesome work.

Donna Sobczak

Donna Sobczak

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Contact Us

590 Progress Drive Unit D
Hartland, Wisconsin, 53029

Phone: 262-671-8999

Opening Hours

Monday – Friday
24 Hours A Day

Friday – Saturday
24 Hours A Day

Sunday – 24 Hours