Over his career his firm produced many works some of which are considered exceptional examples of Mid-Century Modern, and Brutalist architecture.

After his graduation he worked for the Arizona highway department as a landscape architect.

[1] In 1965 they hired George Sprinkle to manage the firm's satellite Flagstaff office.

In the early 1980s Guirey had two heart attacks which restricted his work.

In 1982 Richard Arnold died; that same year, there was a fire at the office.