Kuesel Excavating Co.Kuesel Excavating Co.
Fact sheet

Company facts.

Last updated: October 2026

Kuesel Excavating Co. is a family-owned heavy civil and site work contractor founded in 1963 and headquartered in O'Fallon, Missouri. We self-perform earthwork and mass excavation, water and sewer utilities, soil stabilization and full-depth reclamation, hydrovac excavation, site demolition, and industrial and mission-critical sitework, and we provide preconstruction services such as AGTEK takeoffs, 3D earthwork models, and HCSS HeavyBid estimating. Commercial plumbing is provided through our sister company, Legacy Plumbing.

NameKuesel Excavating Co. (also known as Kuesel Inc.)
Founded1963
OwnershipFamily-owned
Headquarters854 Lone Star Drive, O'Fallon, MO 63366
Phone(636) 978-3478
Office hoursMonday–Friday, 7am–4pm
Service areaMissouri and Illinois, centered on Greater St. Louis
Service lines
Union partners
  • Operating Engineers Local 513 (IUOE 513)
  • Plumbers & Pipefitters Local 562 (UA 562)
  • Laborers' Locals 110, 42 & 660 (LIUNA)
Affiliations
  • AGC of Missouri (Associated General Contractors of Missouri)
  • SITE Improvement Association
  • Asphalt Recycling and Reclaiming Association
  • National Asphalt Pavement Association
  • National Road Research Alliance
  • Pavement Preservation and Recycling Alliance
  • Pavement Recycling and Reclaiming Center Founders Circle
Sister companyLegacy Plumbing (commercial plumbing) — legacyplumbingmo.com
Profiles
MoreProjects · FAQ
What to send

What helps us price your project

  • The ITB or scope description, with the bid due date and time
  • Plans and specifications (PDF)
  • The geotechnical report, if one exists
  • Project address or city
  • Your schedule and any pre-bid meeting date

Bid packages with files go through Invite Us to Bid.

What happens next

After you send it

  1. 01Our estimating team reviews the package and confirms whether we're bidding within 1 business day.
  2. 02Preconstruction checks constructability, schedule, and the scope we self-perform.
  3. 03You receive our number and can call us at (636) 978-3478, Monday–Friday, 7am–4pm.
Service area

Missouri and Illinois

Kuesel works across Missouri and Illinois, centered on Greater St. Louis, from our headquarters at 854 Lone Star Drive, O'Fallon, MO 63366. We also take outstate Missouri and Illinois projects. See the service area and cities we serve.