Building Services Consulting Engineers. QuinnRoss Consultants is a successful and award winning building services consultancy practice. Founded in 1998, QuinnRoss has developed and directed projects covering the complete construction spectrum, bringing extended expertise & experience, specialising in mechanical, electrical and public health engineering. Our flexible approach allows work on a variety of projects, varying in scale and type, with an emphasis on prolonged energy savings by adopting energy efficient, sustainable and renewable resources. This innovative and sustainable approach to building services design, and our approach to value engineering, it has helped us strengthen and maintain long-standing relationships with our clients.