What we do
- Identify the dominant noise type (airborne vs impact vs low-frequency).
- Find flanking paths (vents, gaps, floors, shared framing).
- Use the sequence: seal → decouple → add mass → manage absorption.
- Preserve ventilation and fire safety.
What we refuse
- No fake decibel claims.
- No advice that blocks required ventilation.
- No hidden electrical/gas instructions.