HVAC workers in Sacramento discovered 12 baby jars full of gold dust during an installation back in September. (Photo: Video Screenshot / CBS Sacramento)

$300k in gold dust was found by a pair of HVAC workers during a home installation in Sacramento.

According to CBS, homeowners hired Steve Ottley and a co-worker from Clark and Rush to install a new heating and air conditioning system back in September. Ottley and his partner then found 12 baby jars full of gold dust under the floor grill of the house.

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" I still can't believe it today," Ottley said. "It's unreal. We kind of just looked at each other and said 'wow'."

Ottley told CBS he considered keeping the found $300k in gold dust for himself but ultimately decided against it.

"I've had similar incidents happened to me where jewelry and gold was taken from me," he said.

"Every time we find this type of thing, we are always trustworthy and upfront," added Mark Thyne of Clark and Rush.

Instead, Ottley returned the gold dust back to its rightful owners. The homeowners, who have chosen to remain anonymous, do not know where the 300k came from.

Ironically, this is not the first time workers from Clark and Rush have found gold in a home. According to UPI, workers also discovered around $25,000 in gold coins during an installation in the 1980s.

In fact, finding valuable items hidden in homes seems to be a recurring theme as of late. According to the Huffington Post, a Salt Lake City resident found $45,000 in cash in the attic of his new house back in 2011. Josh Ferrin, who was a first-time home buyer, then returned the money to its original owner.

Then, last month, a Wisconsin man found a diamond near his home in Wisconsin. Dan Fagnan found the jewel while panning for gold and had it turned into a necklace for his yet-to-be-born child.

To watch CBS Sacramento's story on the $300k in gold dust found, click below.