From our humble beginnings in 1970 as a company consisting of two men and a single trencher, Underdown Trenching has grown into a turn key operation, specializing in telecommunications construction & installation.
Our Services
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Directional Boring Machines
Solid Rock Boring Capabilites
Excavators/Backhoes w/ Breaker Attachments
Hydrovacs
Hard Surface Core Drills
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Fiber Blowing Setup
Larson Trailer
Reel Trailers
Air Compressor
Maxcell Install Capabilities
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Bucket Trucks
Climbing Gear
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Bucket Trucks w/ Splicing Trailers
Single and Mass Fusion Splicers
OTDRs
Coaxial Splicing Tools
Current Service Areas
St Louis City
St Louis County
Jefferson County
Franklin County
Crawford County
Washington County
Warren County
St Charles County
Lincoln County
Pike County
Boone County
Cole County
Gasconade County
Osage County
Macon County
Randolph County
Monroe County
Ralls County
Missouri
Marion County
Shelby County
Montgomery County
Callaway County
Audrain County
Maries County
Phelps County
Dent County
St Francois County
Madison County
Ste Genevieve County
Iron County
Reynolds County
Perry County
Bollinger County
Scott County
Wayne County
Cape Girardeau County
Madison County
St Clair County
Monroe County
Jersey County
Bond County
Clinton County
Washington County
Perry County
Macoupin County
Jackson County
Randolph County
