You have done it, you have found the house and the place of your dreams, the home in which your children will grow and in which you will create memories of incalculable value, and the place where you will see your ideas flourish and in which your business will be able to begin to grow finally, now only one thing is missing … the reform. Very few people keep good memories of the day they decided to make a change, most describe the months of work as an experience to never repeat and comment that the results are far from desired, but all this can be avoided with the correct choice of companies executing the reform.
Budget
It is probably the most obvious point to take into account when comparing different companies. The budget is the 
tool that owners usually use to choose a contractor, generally being the lowest price that the work takes. But this is a grave error for several reasons:
Not everyone is budgeting the same. Think open concept kitchen remodeling. Unless you have an architect who has made plans and memory of qualities, each contractor will schedule a very different reform. This means that the lowest budget does not have to be the cheapest; it may be that the reason why it is so small is that the budgeted qualities are worse than those of its competitors.
The cheap is expensive. Everything has its fair price, and in the construction, it seems that we have forgotten about it since it is increasingly common to see ridiculous amounts that do not correspond to the reality of a job well done. The painter who charges 3 € per square meter and the one who costs € 10 has nothing to do, both will paint the wall of the color you have indicated, but the quality of the finish and the execution of it will be very much.
you must obtain before starting any work. But it is not as rare as it seems that a contractor is not up to date with the norms of the Technical Building Code or that he completely ignores the demands of the Town Halls regarding fees and licenses.