Business Details
26 Years
experience
Expert Underground Utility Installation Services
L & M Underground has established itself as a premier provider of underground utility installation services since 2000. Our expertise spans horizontal directional boring, trenching, rock sawing, and subsurface investigation, serving diverse environments from hospitals to military bases. With over two decades of experience in the HDD industry, we combine advanced equipment with skilled crews to deliver safe, environmentally conscious solutions for projects of all scales. Our commitment to precision planning and execution ensures minimal disruption to landscapes and infrastructure. We specialize in challenging terrains including rock formations, waterways, and congested urban areas. Our comprehensive services cover electrical, gas, water, sewer, and fiber optic installations, tailored to meet both residential and large-scale commercial needs.Backed by a proven track record of completing complex projects across three states, we maintain industry-leading standards through continuous innovation and technical excellence. Our locally owned operation prioritizes client collaboration, delivering customized solutions that balance efficiency with regulatory compliance. From small residential installations to multi-mile utility corridors, we combine technical expertise with responsive service to meet evolving client demands. Recognized by the Better Business Bureau with an A+ rating, our reputation is built on integrity, reliability, and uncompromising quality in every project we undertake.
Services
Horizontal Directional Drilling
Rock Hammer Drilling
Open Excavations
Subsurface Investigation
Fiber Optic Installation
Water Sewer Boring
EV Charging Conduits
Utility Locates
Asphalt Restoration
Pipeline Crossings
Details
- Year established: 2000
Highlights and features
- We have over 20 years of specialized HDD experience in mountainous terrain
- Our crews handle projects from small residential installations to 14-mile fiber runs
- We maintain strict safety protocols for work near critical infrastructure
- Our equipment fleet supports both micro-trenching and large-diameter bores
- We offer complete project management including potholing and surface restoration
Associations and certifications
- BBB
What people say
Completed correctly
Highly recommend
Timely in every way
Very professional
Outstanding work
Services
Horizontal Directional Drilling
Our HDD services install underground utilities with minimal surface disruption. Using advanced guidance systems, we bore beneath roadways, waterways, and sensitive landscapes. This method reduces restoration costs and environmental impact while maintaining precise installation angles for utilities up to 14 miles long.
Rock Hammer Drilling
Specialized drilling through challenging rock formations using air hammer technology. Our crews handle granite, sandstone, and cobble conditions with equipment optimized for mountainous terrain. This method achieves faster penetration rates while minimizing water usage compared to conventional drilling techniques.
Subsurface Investigation
Hydro excavation services to expose underground utilities for accurate mapping. We perform precision potholing to verify depths and clearances, maintaining compliance with Xcel Energy and municipal regulations. Our process includes temporary and permanent surface restoration after investigation work completion.
Fiber Optic Installation
Complete fiber optic conduit placement from right-of-way to building entry points. We handle large-scale telecom projects including vault installation, innerduct placement, and coordination with splicing partners. Our methods ensure safe installation near existing infrastructure while meeting industry performance standards.
Water and Sewer Boring
Directional boring for water mains and sewer lines using HDPE, PVC, and Certa-Lok materials. We specialize in installations beneath roadways, golf courses, and environmentally sensitive areas. Our solutions include sleeve placement for future line installations and complete system replacements with minimal landscape disturbance.
Questions
What geographic areas do you service?
We operate throughout Colorado, Arizona, and Wyoming with specialized capabilities in mountainous and environmentally sensitive regions.
What types of underground utilities can you install?
We handle all utility types including electrical, gas, water, sewer, fiber optics, and irrigation systems using directional boring and conventional excavation.
Do you handle both residential and commercial projects?
Yes, we complete projects ranging from small residential service lines to large-scale infrastructure developments exceeding 10 miles in length.
What makes your rock hammer drilling unique?
Our 20+ years of mountain drilling experience enables efficient rock boring through granite, sandstone, and cobble formations using specialized air hammer systems.
Can you perform subsurface investigations?
Yes, we offer potholing services using hydro excavation to verify utility locations and depths, including full surface restoration after investigation.
What safety certifications do you maintain?
We follow strict OSHA-compliant safety protocols with trained crews and equipment specifically adapted for work near critical infrastructure and utilities.
