Waterline, Sewerline, & Electrical Piping Installation
  • Water Mains

  • Firelines & Mains

  • Wet Taps *most sizes

  • Water Service Lines

  • Backflow Preventers

  • Vertical Realignment

  • Encasements

  • Thrust Blocking

  • Chlorination (Disinfection)

  • Flushing Valves (Blow Off)

  • Air Release (Air Vac)

  • Hydro Static Testing

  • Sewer Mains

  • Sewer Service Lines

  • Cleanouts

  • Backwater Valves

  • Connect To Existing *Pipes or Manholes

  • Encasements

  • Manholes & Drop Manholes

  • Adjust Rims

  • Vacuum Testing On Manholes

  • Low Air Testing

  • Mandrel Testing

  • Power, TV, & Telephone Trenching/Conduit

  • Private Trenching For Gas

  • Junction Structures

  • Switching Cab

  • J-Box Transformer Installations

*Including street cuts & work in the right-of-way.

Grading, Drainage, & Site Prep
  • Certified pads

  • Parking lots

  • Roadways

  • Demolition

  • Clearing & Grubbing *Including tree removal

  • Perc Testing & Soils Testing

  • Septic Systems (conventional & alternate systems)

  • Grease Traps

  • Footings

  • Under Slab Plumbing Trenches


  • Fire Hydrant (commercial site prep)

  • Remote FDC (commercial site prep)

  • Fire Risers (commercial site prep)

  • PIV Setup

  • Backflow Preventers (commercial & residential site prep)

  • Hot Box Assemblies

  • Hydro Static Testing

  • Storm Drains/Catch Basins

  • Headwalls

  • Underground Retention (CMP

  • RCP-Reinforced Concrete Pipe

  • HDPE-High Density Polyethylene Pipe

  • Manholes

*Including street cuts & work in the right-of-way.

Rock Excavation & Specialty Services
  • Rock hammering for footings, trenching, cutting in house pads, basement excavation, & demolition.

  • ALL pre/post construction testing on sewer & water systems. (vacuum testing manholes, hydro-static testing, mandrel testing, low air testing, bac-t testing, etc.)

  • Eljen System Installation


  • OSHA Trained

  • Confined Space Certified

  • Environmentally Conscious Developments

  • Mixed Use Development

  • MF24 Fire Mainline Certification

  • Dust Control Certified w/Multiple Coordinators

  • Eljen System Certified









We, at ALC Underground LLC, have become known for being reliable and honest, but most of all, those who have worked with us, whether it be Home Owners, Developers, Contractors, Engineers and Inspectors, understand that we are the ones who “jump when they say jump” and always produce “a job well done”. With 40+ years of experience in the construction industry, our crew strives to be your go-to resource when in need of construction services. For your security, we have references available upon request, which include the finest in trade and development. We are, and will always be, in good standing with the Registrar of Contractors, D&B Government Customer Response Center, BBB, and numerous municipalities throughout Arizona. Take a look at the services we provide, and contact us today for all your construction needs!




Year Established


Projects Completed



For any inquiries, questions or commendations, please call: (928) 636-5804 or fill out the following form:

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Head Office

365 East Liana Drive

Chino Valley, AZ 86323



Tel: (928) 636-5804

Fax: (928) 636-6610

Billing Inquiries: (602) 733-3223


To apply for a job with ALC Underground LLC, please send a cover letter together with your resume to: alcundergroundllc@gmail.com

Estimates: (602) 723-2357
Lead estimator, Arnold Cox