Heating

6 Signs That Your Furnace Needs Repair

Your furnace is arguably the most important appliance in your home during the winter season. It keeps your home warm and your...

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Heating

Schedule This Important Heating Service Today! Here’s Why

Your furnace has a big, important job at your house. It keeps your home and family comfortably warm all winter long. But...

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Indoor Air Quality

Why You Should Choose a Whole-House Air Purifier

When you think about air quality, you might think about the mold and pollen levels outside. You can’t do much to improve...

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Air Conditioning

Preparing for Utility Price Hikes

It’s been all over the news–the prices of gas and electricity have gone up tremendously, to the point where a lot of...

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Air Conditioning

The Refrigerant Misconception You Don’t Want to Believe

Most air conditioners use refrigerant to cool your home. With temperatures dropping, you may not be thinking much about your AC’s cooling function, but it’s still important, even in fall and winter. Some homeowners think they know what refrigerant is and how it works. Others know that their AC has refrigerant, but don’t know its function inside the AC unit.  Cooling your home is only possible because of refrigerant in your HVAC unit. Your AC unit functions differently when you...

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Electrical

Is It Time to Upgrade Your Electrical Panel? 

Your electrical panel plays a big part in how efficient your home is when it comes to energy use. Some people also...

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Air Conditioning

AC Repair needs to Be Aware Of

Fall is around the corner and your AC will get some much-needed rest from the stress of cooling your house through the...

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Announcement

Althoff Voted “Best of the Fox” for 2022—A Clean Sweep

We have great news: Althoff Residential has been voted 2022 Best in House & Home Services for HVAC, Plumbing AND Electrical in McHenry County in the Northwest Herald Readers’ Choice Awards. This was a clean sweep of every category we were eligible for.  Although we aren’t surprised at receiving this honor—we work hard every day to provide the best service possible to all our customers—we are immensely grateful to all of you who voted for us. We wouldn’t be here...

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Air Conditioning

Sounds You Don’t Want Your AC Making

One day our AC units may be high-tech enough to alert you of problems early on. We already have smart thermostats that help you plan ahead and with programmable settings so it’s definitely possible. But until then, we have to identify signs that something is wrong with an AC unit.  When you pay attention to warning sounds from your AC, you can stay ahead of AC repairs in Crystal Lake, IL. By knowing what to listen for, and taking proactive...

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What Are Other Chicagoans Saying?

I just wanted to thank you for the great service we received over the past few days in repairing our furnace.

Mark Stephenson

4.8

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on 1094 reviews

Serving Chicago's Suburbs

We proudly serve homeowners throughout the following areas, delivering
reliable, high-quality service wherever you need us.

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Let’s get your project
started today!

We offer whole-home solutions, not just quick fixes.