97.833430401864 100
4.9

1,642 reviews since March, 2015

Althoff Industries
815-455-7000 ·
Crystal Lake, IL 60014

"Rob was my technician. He was very professional and worked quickly to clean and update my furnace and humidifier for winter. He has been here before. I have been happy with the service I have received from Althoff so far."
100% rating - from Barrington, IL on
Verified Purchase