Siren Acoustic Guitars is a boutique guitar building shop in Londonderry, New Hampshire, founded by Master Luthier Greg Descoteaux. With over three decades of luthier experience, Greg originally ran the operation as a one-man workshop, building guitars and experimenting with various construction theories using traditional methods combined with modern technology. He later brought on Army veteran and former art student Josh Dion as an apprentice, and together they’ve developed a reputation for creating fully customizable acoustic instruments.

The shop specializes in custom acoustic guitar builds, offering models including the OO (Double O), Grand Auditorium, and Dreadnaught styles. What sets Siren apart is their collaborative approach‚customers work directly with these experienced guitar techs to select every detail, from wood choices to bracing patterns, ensuring each instrument matches the player’s specific style and preferences. Greg’s expertise in guitar setup and fretwork, developed over decades of hands-on lutherie, informs every build. This locally-owned operation focuses on crafting instruments built to last, with the player’s needs at the forefront of their design philosophy.