I hired a flooring guy to remove carpet and install new wood in three bedrooms. The goal was to refinish the existing wood in the rest of the house and finish the old and new to match. He installed white oak without confirming what my existing floors were. I assumed his assumption of white oak was correct because he's the experienced one and I'm not.

They sanded the old wood yesterday to find red oak. When I called him, he took no responsibility for the mistake and basically left it up to me to decide what to do. I'm deeply disappointed and upset.

I'm going to hire someone else to finish the job, regardless of what I do. I've read threads on here about trying to match red and white oak, and my takeaway is that it's pretty impossible. That said, I'm wondering if there is anything I could try that would be good enough given that all places where the wood meets us a threshold to a bedroom (as opposed to a wide open space where it might be more obvious). I'd like to avoid bleach unless I can find someone who is experienced in that. I also don't think I can afford to tear anything up and start over given the square footage and my income (500 sq ft new wood and 830 sq ft old wood).

Thanks in advance for any ideas you have!

Since both species have the same grain pattern you could stain them to match. Dark stains are easiest to make them close. A little red tint in the white oak will help match.