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Main Office

8001 South Route 31
Crystal Lake, IL 60014
Phone: (815) 455-7000
Fax: (815) 455-8354


Office Hours: Mon-Fri 9:00a-5:00p

 

Branch Location

4152 May St.
Hillside, IL 60162
Phone: (312) 332-5700
Fax: (815) 455-8354


Office Hours: Mon-Fri 9:00a-5:00p

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Main Office

Branch Location

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"Matt knows our systems and definitely knows what he is doing. We have total confidence when he leaves that everything is done correctly."

~ T.S from North Barrington, IL

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"Althoff's is a very good company who always gives great service and timely service by well-trained technicians. We are delighted to do business with this company!!"

~ R.G. from Crystal Lake, IL

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"The tech was on time, efficient, and extremely knowledgeable. I would definintly use this individual again, if or when I need this kind of help."

~ M.S. from Crystal Lake, IL

 

Let Our Customers Tell You How Great We Are

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