We engaged with Avant Acoustics to analyze and then provide guidance on alternatives to address our issue of our newly installed HVAC units exceeding city sound ordinances at the property line. Andrew VonFeldt provided professional and expert support as we evaluated the modeling and recommendation he performed.  We proceeded with relocation design based on his recommendation of relocation and adding a sound enclosure to assure compliance with the city ordinance.  Avant was attentive and provided support in a timely manner when additional sound readings and evaluations were needed.  The final sound levels taken at the property line aligned with the modeling performed by Avant and met the city ordinances requirement.  Avant’s modeling, expertise, support, and very qualified staff played a critical role in the successful completion of the project. We would, without hesitation and with full confidence, recommend Avant Acoustical to provide their acoustical consulting services to anyone experiencing noise or sound issues or need an expert review of a project from an acoustical perspective.