My reno work is done by Gek Jin. Today is the 4th day of work, so far so good. I agree that their price is good, cos me too have a tight budget.
Some might think that with such a low price, their work might not be good. Remember? They are contractor not ID, so it is reasonable to me that their fee is lower then ID. So dun expect them to do space planning for you, you have to do some homework yourselves.
As for supervision, of course, you have to do it. Even it’s a well known ID, supervision is absolutely necessary, otherwise, all our clerk-of-work will be out of job le. : D
As for fixture like: w/c, basin, heater etc etc. They quote you based on what they have, but you might not like the design they have. So my advice is, just ask them to provide the labour for fixing and you get your ideal w/c, etc.
And the most important of all. Ask whatever you dun understand. Communitcation is the most important, if you have any questions call them, if they are busy, sms them he will call you back.