Scams are a common thing when it comes to home improvement. As much as we would like the authorities to intervene, it is much better to have the knowledge to protect yourself from scammers who just want to steal your hard earned money. Remember knowledge is power; you will be able to save yourself as well as others if you are well informed.
With this age of the internet, information sharing and acquisition are very easy and fast. If you are having doubts about who your contractor is, just think of Google as your best friend. Look up the name of the contractor and you are bound to get the information you desire. If still unsatisfied visit the nearest governing body that deals with such matters and has them investigate.
Check the cost
If the deal is too sweet to be true, it probably is. Some contractors say that they have a special offer just for you. This is just a gimmick to keep you interested. Consult with more than just one contractor and you will be able to establish what is real.
The material used should be able to pass the quality test or at least approved by the quality standard board. If you have doubts about the materials to be used you should ask a site inspector to come and give you pointers. Do not trust the contractor if you feel something is off.
Contract changes while the project is still on
If initially there were no red flags, this should raise tour eyebrows. A good contractor is bound by the schedule stipulated in the contract. They rarely change the term unless Consult a specialist if this happens so that you can stop the project before you are ripped off.