I contacted Richtec to fix a leak into the cavity wall at the back of a cistern. I was desperate and signed off on half of the quote as a deposit. When I received their quote by email it did to make a lot of sense. The quotation was $1000. I had second thoughts and the job was done for $270 by another plumber. This firm is very good at taking advantage of the situation, and demanding half payment for a wildly inflated quote. Do not use them!