My house was built in 2005. Our Old St Louis brick floors were finished with polyurethane. The "professional" floor guy used the same finish on my wood & brick. My brick floors are yellowing, especially in areas that have been covered by a rug.

Is there anything besides re-finishing that can make the floors less yellow? (I notice that the floors near my windows are not yellow). If refinishing is the only remedy, what stripper do you recommend? What sealer do you recommend?

Thank you,