Kathleen O'Brien bought her dining room table, TV console and headboard from AptDeco.

"The world is kind of on fire, literally, and so anything that I can do to reduce my own footprint in the world is what I'm trying to do, like in all aspects of my life and furniture specifically," said O'Brien.

While the furniture sells at as much as a 50% discount to new, the service comes at a price.

"We earn a percentage that ranges from 15% to as high as 60% depending on the product, the brand, the condition, and a lot of different variations that go into it," said Fagiri.