Last year I removed my old water damaged window sills and replaced them with new oak window sills along with oak crown mouldings placed underneath. I purchased from the Chilliwack Windsor Plywood center the needed 3/4 inch oak boards along with the oak crown mouldings and being a do it your-selfer I managed to cut out very carefully the old MDF sills using of all things a drill and then very carefully by hand chiselling out the MDF. It was a laborious process but wanting to be careful to not damage the windows or the window plate I managed to remove it all and installed the new and they look great.
Next to installing new window sills using Windsor Plywood products I also used their stain in Summer Oak which was suggested to me by the sales person and the reason I wanted to go with this particular stain is because of the kitchen which i wanted to match with the pre-existing cabinets and do they ever. Happy as can be and also the oak sills were coating to with Windsor Plywoods Varathane Diamond clear semi-gloss and the results well they speak for themselves. (the only problem, I don’t have the before pictures to show you.)
Along with doing my window sills I also used Windsor Plywood for buying flooring for my kitchen and bathroom and I used Coastal Spice Scraped Vinyl Flooring and it looks great (First picture below).