There are several coming along because the practice is still not popular, there we send out to do it in Tintorerias if not done at home. these are known to me and my family there
calle León nº 8.
calle de La Estrella nº10 (near Gran Vía).
Lavandería Mariland, lower Argüelles district by Calle Meléndez Valdés 52
Donoso Cortés, 17
Lavanderia Wash'n Dry,Calle Corredera Alta de San Pablo 14,(near metro Tribunal)
Lavanderia Ondablu
Calle Hortaleza, 84,

hope it helps with google you can place them .