The Woodstock Fire/Rescue District responded to the 9700 block of West Bull Valley Road in Bull Valley Thursday evening for a structure fire | Photo: Alex Vucha.

An investigation is underway after a well-involved house fire left the structure a total loss Thursday evening in Bull Valley, fire officials said.

The Woodstock Fire/Rescue District responded around 6:52 p.m. Thursday to the 9700 block of West Bull Valley Road in Bull Valley for a report of a structure fire.

The first arriving unit reported a residential structure fire that was well involved, fire officials said. The homeowner was home at the time of the fire and called 911.

“There are no fire hydrants in this area, which prompted the activation of Mutual Aid Box Alarm System (MABAS) for additional water tenders, firefighters, and change of quarter’s companies,” the Woodstock Fire/Rescue District said in a statement.

Firefighters responded from Marengo, Harvard, Hebron, Union, Wonder Lake, Huntley, McHenry, Algonquin, Fox River Grove, Pingree Grove, Cary, Nunda, Richmond, Barrington and Antioch to assist.

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“At this time, the fire does not appear to be suspicious in nature. Fortunately, no residents or firefighters were injured as a result of the fire,” fire officials said.

The home was deemed a total loss and initial damage estimates are not available yet. Firefighters remained on scene into the night checking for and extinguishing hidden fires and conducting an investigation.