Q why do i need a replacement boiler? Just a little thank-you for your excellent customer relation skills and overall proficiency, happy customer. Is your network connection unstable or browser outdated? This is page of (this thread has messages.). It goes without saying that if you try all of this and nothing works, you may need to call a plumber but why not try it yourself first? Up to tradespeople can provide a quote, but on average you'll get -. Our specially trained.