Bieter.ch is a portal that can be ordered quickly, well and cheaply.
At bider.ch you can compare the prices of several companies that are applying for the execution of work for you.
The goal of operator.ch is to satisfy all those involved, both of them as a provider of services to and from them.
Trust, quality, free offers, very reasonable prices for services, all that you can find on the portal bider.ch.
All you have to do is submit an application for work (absolutely free), wait for the offer from companies in your area and choose the company that suits you, and you're done.