Your partner in commercial real estate Our new site is under construction and will be online soon. " CONTACT Send us a message. 5 + 15 = SEND TELEPHONE +33 3 88 39 52 10 contact @ grumbach-immobilier. com ADDRESS 1, quai Jacques Sturm 67000 Strasbourg SCHEDULE Monday-Thursday: 9 a.m.-6 p.m. Friday: 9 a.m.-5.30 p.m.