Althoff Industries

8001 S IL Route 31
Crystal Lake IL 60014
23 Reviews

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Opening Hours

  • Mon: 12am-12am
  • Tue: 12am-12am
  • Wed: 12am-12am
  • Thu: 12am-12am
  • Fri: 12am-12am
  • Sat: 12am-12am
  • Sun: 12am-12am


  • American Express
  • ATM/Debit
  • Cash
  • Check
  • Discover
  • Financing
  • MasterCard
  • Visa

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Plumbing, Electrical, Heating & Cooling Pros.Althoff Industries is an HVAC, plumbing, electrical and mechanical contractor in Crystal Lake that serves Northern Illinois. Does your plumbing need serious help? Do you have unusually high electricity bills? Is your air conditioning system more than 20 years old? Do you need service right away? Then give Althoff Industries a call, and we'll solve those problems quickly and at a price that's surprisingly affordable. A quick response is guaranteed, so call us anytime, day or night!Our company specializes in: Heating, installation and repair Air conditioning installation and repair Plumbing services Electrical services Green solutions Hybrid heating and air conditioning systemsAsk us about our geothermal and solar systems! Since 1961, customers from all over McHenry County and surrounding areas have come to Althoff Industries for their mechanical needs. Our contractors are friendly and will offer great tips to keep your system in shape for years to come. When your HVAC system is on the fritz, give us a call for the quick fix. We do the job right!Call Althoff Industries today to get your estimate!