Our second-hand home's builder set the 4 toilet flanges to accommodate a 5/8- inch ceramic/marble tile floors. Evidently the original owners experienced some cost overruns and decided to cut corners by opting for 1/4-inch composite tiles. Therefore the flanges are about 3/8-inches above the floor. Are there any reasonable options to raise the toilets to meet the flanges or will I be stuck with tearing out the floors and having a plumber cut and fit new flanges? I have shimmed the toilets but this is a stop-gap measure at best.

Thanks in advance for your advice and wisdom,