In today’s market there are many dodgy tradesmen that operate in a black market sector of the building industry. It is the work and practices of these individuals that have seen the quality of workmanship in Sydney significantly decline over the last decade or so.
These individuals compete on price and price alone, and prey on the fact that they can entice consumers by offering the cheapest quote, and then deliver a sub-standard job before aggressively demanding their money from you.
As a consumer you should never put yourself in such a situation. Do your homework on the individuals’ business by researching what you can. If you are not satisfied that the business is legitimate, then do not make the same mistake many others have made by persevering with quotations or further discussions. Try elsewhere instead.