No official website that I know of, a quite common name (google gives a lot of results for "Hei Sveis" but none relevant), and no possibility to find it on Street View (must be pretty new).
The place itself was clean but the design was quite modest.
When I went there last week, I was positively surprised with it. The hairdresser was meticulous and quite skillful and he took good care of my hair. I would like to precise that I am a man so I have no idea how good the hairdresser would be with women's hair.
The prices: 300 for men, 350 for women (normal cut), 250 for children, etc... No idea if they do anything fancy like color etc...