We have eighteen windows in a new addition on our home. The stain turned out too yellowy-orange and now we’re faced with what to do to rectify this situation. (They are already finished with two coats of poly.) No one will strip them because there are two many and we

We purchased Pella sliders and put stain on them. The contractor then accidentally sprayed varnish on prior to the sealer. He has now sprayed the sealer over the dried varnish and wants to sand before the final coat of varnish is applied. Is the wood sealed and how aggressive should