Advanced Comfort Systems is a heating and cooling company, locally-owned and operated like a family, based at 1130 Michigan Avenue in Oostburg, Wisconsin, serving Sheboygan County and the surrounding lakeshore since 2008. It is a Carrier Factory Authorized Dealer and has won the Carrier President's Award eight times, most recently in 2025. The company installs Carrier and Mitsubishi equipment and services all major brands. Phone (920) 564-2333.

A gas furnace generally lasts 15 to 20 years, central air conditioning 12 to 15, and a well-maintained boiler often 25 to 30. In practice the spread is wide, and maintenance is the biggest single variable. A furnace that gets a tune-up every autumn routinely outlives an identical one that never gets looked at — the failures that end a system's life are usually the small ones nobody caught.

There is a charge for diagnosing a fault on an existing system, and we tell you what it is when you book. If you go ahead with the repair, it folds into the job. Quoting a replacement system is free — that is a sales visit, not a service call, and you should not pay for it.

Yes. We install Carrier and Mitsubishi, but we repair and maintain every major brand: Trane, Lennox, Goodman, Rheem, Bryant, Amana and the rest. It's not uncommon that the equipment we service was put in by somebody else.

We stock parts for the brands we install, so a repair on another brand may mean ordering a part. When that happens, we’ll tell you upfront and get you back up and running as quickly as we can.

We stand behind the work we do with our own warranty. We can’t honor the original installer’s warranty, though, because that coverage stays with the company that put the system in. If your system is still under warranty from them, it’s worth checking with them first.

Regular hours are Monday to Friday, 7am to 3pm, on (920) 564-2333, and after hours the same number reaches our on-call technician. In a hard cold snap every HVAC company in the county is triaging at once, so call as soon as you notice rather than waiting to see whether it sorts itself out overnight.

No. Advanced Comfort Systems is a heating, cooling and indoor air quality company. The one exception is water heaters, which we do install and service. We also work on boilers and hydronic heating, which use hot water, but that’s heating work, not plumbing. We don’t take on softeners, drains, fixtures or other plumbing jobs.

Cold-climate heat pumps do, and they keep producing useful heat well below zero — a long way past where the older generation gave up. Whether one is right for your house depends on the house, your existing ductwork and what you pay for gas versus electricity. Sometimes the honest answer is a dual-fuel setup that runs the heat pump most of the winter and hands off to a furnace in the coldest stretch. More on heat pumps here.

Once a year, in autumn, before you need it. Air conditioning gets the same treatment in spring. A tune-up catches the cheap failures — a dirty flame sensor, a weak capacitor, a clogged condensate line — while they are still tune-up items rather than a no-heat call in January. The Comfort Club covers both visits at $10 off, and we remind you when they are due.