Trenches carry the lines a property runs on: water, sewer, storm drains, power and irrigation. Price is mostly a matter of length, depth and what's in the way.
Prices per foot
| Trench | HomeAdvisor, 2026 |
|---|---|
| Standard | $5 to $12 per foot |
| Large or difficult | $13 to $40 per foot |
| 100 feet | $1,300 to $4,000 |
| Average job | $950 |
HomeAdvisor suggests holding back 15 to 20 percent for surprises underground.
Depths
HomeAdvisor gives about 24 inches for water supply lines and about 36 inches for drainage pipe.
Sunshine 811
Florida law requires notice to Sunshine 811 at least 2 full business days before digging. Utilities mark within 24 inches of either side of their lines, and the ticket is good for 30 calendar days. See Sunshine 811.
Who's licensed for what
Florida Statutes 489.105 defines an underground utility and excavation contractor as one who builds and repairs main sewer, water and storm sewer systems and the lines from those mains to an individual meter. Plumbing and mechanical contractors' scopes include the excavation incidental to their own work. Ask which license covers your job.
Sources
- HomeAdvisor: How much does trenching cost? (updated June 19, 2026)
- Florida Statutes 556.105 (2025): Procedures (notice to Sunshine 811)
- Florida Statutes 489.105 (2025): Definitions (contractor categories)
Reviewed October 20, 2026. Rules, prices and contacts change, so check the source before relying on it.
Questions and answers
How much does trenching cost per foot?
HomeAdvisor's 2026 guide lists standard trenching at $5 to $12 per foot and large or difficult trenches at $13 to $40.
Get your trench quoted
Phone or fill in the form and a contractor who works in Lee County will get back to you. There's no charge for a quote.
Reached voicemail? Leave your name, number, the address and a line about the job.