Excavation & Grading

Excavation & Grading for walks, drives, pools, patios, foundations, footings etc...


Concrete: Walks, patios, drives, footings, crawls, walls, stamped dyed, etc...

Material Delivery

Material Delivery: Decorative stone, mulch, puleverized dirt, sand, gravel, brick, etc...

Brick & Block HardScapes

Landscaping: Block walls, pavers, mulch, design concept, shrubs, etc...

Who We Serve
  • Residents: We are here to provide residential customers with quality affordable services, no job too big or small.
  • Business: Any kind any size. If you have an improvement project and you are soliciting bids, please contact us.
  • Government: State and local municipalities both as general and/or sub contractor.

Cmax LLC is a small General Contracting Construction Services company founded in 2006 by John McKanna (Jr) of Shorewood - West Joliet IL. As a member of LIUNA (Laborers International Union of North America) John served over 20 years in the Construction industry as a Foreman/Project Superintendant for a mid sized Chicago area general contractor. During this time John was charged with the task of managing part or all of several multi million dollar infrastructure projects in both the public and private sector. During his tenure he was exposed to all the facets of construction and the management thereof, and it became painfully aware to him that his talents were being utilized to the great benefit of others. Being duly unsatisfied with the current state of affairs and desiring a new direction, in 2006 he resigned and started Nexcorp LLC, which is now Cmax Construction LLC. His goal was not to become a large contractor, but to cater to residential customers and small business while occasionally sub contracting for larger contractors that could benefit from his experience. Thus, Cmax is a small contracting business that still holds true to serving the smaller customers with absolute quality and reliable service. For John, integrity and trust is the foundation of the customer/provider relationship. Its not about getting the job at any price, cutting corners, or compromising safety. Its about giving people value for their money, service for their trust, and quality for recognizing that all contractors are not the same. Thats why John guarantees his work and your satisfaction. He values his customers and puts his reputation on the line for every job. For him, it is personal, and his hands on approach means he is involved in the process from start to finish.

Please take some time to browse the various services of the Cmax website. We want you to be familiar with our services, our pledge to give you the best value for your money, and hope that you will gain some insightful knowledge into the various steps we take to provide the safest, highest quality and affordable service you can get at the local level. If you have any questions, comments or suggestions, please do not hesitate to send us an email and we will respond promptly.