Keller Outdoor, Inc., a major commercial contracting company that specializes in landscaping, lawn maintenance, irrigation, environmental services, demolition and drainage projects, has relocated to new headquarters facilities on a 12-acre site near the entrance to Orlando Sanford International Airport at 2150 Marquette Ave. in Sanford.

Bobby Keller, president of Keller Outdoor, Inc., said the firm plans to host a public grand opening next spring.

Formerly, Keller Outdoor was located on Monroe Rd. in Sanford.

The firm posted revenues from commercial and residential projects that totaled more than $13 million last year and currently employs more than 120 workers.