I STRONGLY do not recommend contacting this company. The welder's qualification is below the baseboard. He undertakes to do everything, it can take four hours, and then he will leave under the pretext of a broken device (after three attempts to fill the system), leaving the pipes to be "completed", or rather completely redone by the emergency team, but for other money. There are no guarantees, the attitude is irresponsible, there is no one in the office. In short, for fans of extreme sports – the pipe will burst or not!