Barr Engineering provides a comprehensive list of mechanical services and capabilities from maintenance programs to turn-key retrofit projects. As an independent service provider, we complete our air conditioning projects through all phases, with the use of in- house personnel and a few select outside subcontractors for rigging, craning and electrical tasks. This comprehensive approach allows BARR extensive control of the installation of our well-designed systems, resulting in a superior design, quick installation and cost-efficient maintenance for you.