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Our Story
L & M Underground, Inc. is one of Colorado's leading horizontal
directional drilling (HDD) and underground utility contractors. We
provide directional boring and open trench underground utility
installations for all types of underground utilities including
electric, phone, cable, fiber optics, water, sewer, and gas. We work
on large scale utility installations as well as small residential
bores. We offer vacuum potholing services for subsurface investigation
and utility location.
Located in the Denver metro area, L & M Underground
provides directional boring and trenching services throughout Arizona,
Colorado and Wyoming.
What We Do
Commercial Experience
Civil & Site Development
Golf Course
Government
School / College / University
Sewage / Water Treatment Plant
Utilities
Airport Runway
Apartments & Condominiums
Arena / Stadium
Assisted Living
Athletic Field
Auto Dealership / Service
Bank
Bridge
Casinos
Church / Synagogue
City / Town Hall
Club House / Community Center
Court House
Design Build
Education (K-12)
Fire / Police Station
Fitness Center
Gas Station
Grocery Stores
Hospital / Nursing Home
Hotel / Motel
House
Industrial Maintenance
Jail / Prison
Laboratory
Library
Lighting Retrofits
Manufacturing Plant
Marine
Medical Office
Military
Misc Project
Mixed Use
Museum
Non-Building Construction
Non-Residential Building
Office Building
Park / Playground
Parking Garage
Parking Lots
Post Office
Power Generation & Distribution
Pre-Manufactured Structures
Radio / Television Station
Renewable Energy
Residential Building
Restaurant
Retail Store
Road / Highway
Secure and Shielded Facilities
Single Family Residential
Storage Facility / Warehouse
Tennis Court
Terminal - Airport / Bus / Railroad
Theater
Theme Park
Tract Housing
Regions & Counties Serviced
- Colorado and Wyoming
Colorado All
Wyoming All
Our CSI Codes
02 06 30.13 - Boring or Test Pit Log Schedule
23 22 13.13 - Underground Steam and Condensate Heating Piping
26 05 43 - Underground Ducts and Raceways for Electrical Systems
27 13 13 - Communications Copper Backbone Cabling
27 13 23 - Communications Optical Fiber Backbone Cabling
27 13 33 - Communications Coaxial Backbone Cabling
27 13 43 - Communications Services Cabling
27 13 43.53 - Satellite Services Cabling
27 15 00.19 - Data Communications Horizontal Cabling
27 15 13 - Communications Copper Horizontal Cabling
27 15 23 - Communications Optical Fiber Horizontal Cabling
27 15 33 - Communications Coaxial Horizontal Cabling
31 01 10 - Maintenance of Clearing
31 01 20 - Maintenance of Earth Moving
31 01 50 - Maintenance of Excavation Support and Protection
31 06 10 - Schedules for Clearing
31 06 20 - Schedules for Earth Moving
31 11 00.00.01 - Clearing and Grubbing
31 12 00.00.01 - Selective Clearing
31 14 13 - Soil Stripping and Stockpiling
31 14 13.13 - Soil Stripping
31 14 13.16 - Soil Stockpiling
31 14 16 - Sod Stripping and Stockpiling
31 14 16.13 - Sod Stripping
31 14 16.16 - Sod Stockpiling
31 20 00.00.01 - Earth Moving
31 21 16.13 - Methane Venting
31 22 13 - Rough Grading
31 22 16 - Fine Grading
31 22 19 - Finish Grading
31 22 19.13 - Spreading and Grading Topsoil
31 23 16 - Excavation
31 23 16.13 - Trenching
31 23 16.16 - Structural Excavation for Minor Structures
31 23 16.26 - Rock Removal
31 23 33 - Trenching and Backfilling
31 63 33 - Drilled Micropiles
33 01 60 - Operation and Maintenance of Hydronic and Steam Energy Utilities
33 01 70 - Operation and Maintenance of Electrical Utilities
33 01 80 - Operation and Maintenance of Communications Utilities
33 05 23 - Trenchless Utility Installation
33 05 23.13 - Utility Horizontal Directional Drilling
33 05 23.16 - Utility Pipe Jacking
33 05 23.19 - Microtunneling
33 05 23.23 - Utility Pipe Ramming
33 05 23.26 - Utility Impact Moling
33 05 23.29 - Cable Trenching and Plowing
33 06 10 - Schedules for Water Utilities
33 06 40 - Schedules for Storm Drainage Utilities
33 06 60 - Schedules for Hydronic and Steam Energy Utilities
33 06 70 - Schedules for Electrical Utilities
33 06 80 - Schedules for Communications Utilities
33 09 40 - Instrumentation and Control for Storm Drainage Utilities
33 09 60 - Instrumentation and Control for Hydronic and Steam Energy Utilities
33 09 70 - Instrumentation and Control for Electrical Utilities
33 09 80 - Instrumentation and Control for Communications Utilities
33 11 16 - Site Water Utility Distribution Piping
33 29 00.00.01 - Well Abandonment
33 33 13 - Sanitary Utility Sewerage
33 33 16 - Combined Utility Sewerage
33 34 13 - Sanitary Utility Sewerage Inverted Siphons
33 41 13 - Public Storm Utility Drainage Piping
33 50 00.00.01 - Fuel Distribution Utilities
33 51 13 - Natural-Gas Piping
33 60 00.00.01 - Hydronic and Steam Energy Utilities
33 61 13 - Underground Hydronic Energy Distribution
33 61 23 - Aboveground Hydronic Energy Distribution
33 63 13 - Underground Steam and Condensate Distribution Piping
33 70 00.00.01 - Electrical Utilities
33 71 19 - Electrical Underground Ducts and Manholes
33 71 39.23 - Underground High-Voltage Wiring
33 71 49.23 - Underground Medium-Voltage Wiring
33 79 19 - Utilities Grounding
33 79 19.13 - Electrical Utilities Grounding
33 79 19.16 - Communications Utilities Grounding
35 41 16 - Levee Cutoff Trenches
40 23 36 - Sanitary Water Process Piping
41 33 23 - Drilling Equipment
41 66 13 - Mobile Boring and Drilling Rigs
45 11 01 - Operation and Maintenance of Oil and Gas Extraction Equipment
45 11 06 - Schedules for Oil and Gas Extraction Equipment