The fire, which was visible along Texas State Highway 225 for much of the morning, broke out at Ironman Metals, according to HFD.
"We did get a call for a fire at this plant at 6:49 a.m.," HFD Chief Thomas Munoz said.
Munoz said HFD had 60 firefighters at the scene, including members of its hazardous materials team.
Ironman Metals states on its Facebook page that it recycles everything from copper to auto parts.
Officials with HFD said they monitored air and water in the area for any potential environmental impacts.
"We've checked with our HAZMAT specialists," Deputy Chief Isaac Garcia said. "They say it's good."
Eyewitness News wanted to ask HFD additional questions about what chemicals might have been burning into the air as a result of this fire, but the follow-up call to the department went unanswered.
ABC13 did have a chance to speak with Air Alliance Houston's Dr. Inyang Uwak regarding the fire.
Air Alliance Houston is a non-profit organization whose mission is to "reduce the public health impacts from air pollution and advance environmental justice."
"There were sure to be air-quality impacts," Uwak said of this morning's fire. "The fire produces a lot of pollutants into the atmosphere.
Uwak and Garcia both mentioned there has been a recent increase in fires at area recycling plants.
The most notable of those is arguably one from June that burned for days at Mammoth Metal Recycling on Kellogg Street in southeast Houston.
Uwak said the Texas Commission on Environmental Quality needs to take a closer look at the regulations in place to prevent future fires.
TCEQ says it is looking into the questions we sent them regarding regulations for recycling plants in Texas.