Kalispell, MT

TD&H has been an integral part of the engineering community in the Flathead Valley since 1973. TD&H has provided quality engineering services with a focus on client satisfaction to a diverse range of public and private clients. TD&H has repeatedly demonstrated our ability to rise to the challenge and go beyond what is expected by seeking creative, functional solutions for our clients. We have a full-time staff who provide engineering design, surveying, construction management and inspection, and material testing services.