A Florida Certified Underground Utility Contractor (CUC) is licensed to install, alter, and repair underground utility systems — including water mains, sewer lines, storm drains, natural gas distribution lines, and other buried infrastructure. Distinct from a plumbing contractor who works inside buildings, a CUC handles the utility connections and distribution systems that exist underground and in the right-of-way.
What a CUC Can Do
Under Florida Statute §489.105(3)(p), a Certified Underground Utility Contractor may install, alter, and repair:
- Water main installation and repair
- Sanitary sewer line installation and repair
- Storm drain and stormwater management systems
- Natural gas distribution lines
- Underground fuel oil and petroleum systems
- Well drilling and pump systems (in coordination with licensed well contractors)
- Septic tank and drainfield installation
- Underground electrical conduit and utility coordination
- Trenchless pipe rehabilitation (pipe bursting, pipe lining)
- Connection to municipal utility systems
Requirements to Get a CUC License in Florida
- 1Minimum 4 years of underground utility experience
- 2Pass the Florida CUC state licensing exam
- 3Insurance: general liability and workers' compensation
- 4Background check and financial review
- 5Biennial renewal with continuing education
Governing law: Florida Statute §489.105(3)(p)
Why You Should Hire a Licensed CUC
Underground utility work requires complex coordination with utility companies, local governments, and environmental regulators. A licensed CUC knows Florida's requirements for utility setbacks, depth requirements, and connection protocols. In Florida, where the water table is extremely high in many areas and soil conditions are complex (sinkholes, muck, fill), improper underground utility work can cause significant structural and environmental damage. The permits and inspections required for CUC work provide essential oversight for work that will be buried and invisible for decades.
What to Look for When Hiring
- Active "CUC" license verified through FloridaContractorCheck
- Experience with your specific utility type (sewer, water, gas)
- Familiarity with your county's utility extension and connection requirements
- Proper equipment for the job (excavation equipment, locating tools, trenchless equipment if applicable)
- Compliance with Florida One-Call (Sunshine 811) requirements before any digging
Common Projects Requiring a CUC License
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