9135 W 135th St
Orland Park, IL 60462

Doug Mayhall & Gary Larsen

Treat people as you’d like to be treated yourself. Although simple, it’s the basis by which we try to conduct every aspect of our business every day. —Doug Mayhall

Total residential construction revenue: $2,893,210

Number of pool excavations: 16

Number of locations: 1

Number of staff: 32

Rank in previous years
2015: 22
2014: 21
2013: 20

All Seasons Pools & Spas was founded in 1954 by Gene Mayhall and strives to give their customers the best products available. Today that company is run by his son, Doug. The younger Mayhall has served as a boardmember of the Midwest chapter of APSP, and has several Genesis 3 Design Group certifications.

Meet the Company's MVP

Dan Lenz, Vice President
Dan’s focus, for much of his 29 years with All Seasons, has been in the growth and development of the business. His analysis of the company’s performance across multiple fronts, with modifications to procedures and processes, has helped All Seasons gain financial strength. His expertise is put to use daily in the oversight of the construction and service business, as well as with the ongoing education of employees and customers. He currently serves on the APSP Midwest Chapter Board of Directors, has judged the APSP International Awards of Excellence, taught seminars and classes, and has written articles and been interviewed for many industry trade publications..