Toilet Repair Dublin. Do you find that your toilet is slow to fill, your toilet hard to flush, or maybe you have a leaking toilet? Stronge Plumbing & Heating are able to fix any problem with your toilet. Call us at our main office on (01) 531 2220 or 085 855 6111 from anywhere within Dublin city or county. We can replace any part within your toilet such as the toilet syphon, toilet fill valve, toilet diaphragm, toilet handle, toilet button or even the toilet seat.