Choosing a dock builder
The dock types builders offer, what to verify before hiring, published cost ranges with their source, the approvals involved, and what a written scope should include.
The short answer
Choose a dock builder by what they actually build, where they work and how they handle permits, not by proximity alone. Ask for photos of comparable docks they built, proof of insurance, a written scope that names materials and piling depths, and who will handle federal, state and local approvals. Published national figures put most new docks at roughly $15–$40 per square foot, but saltwater sites, pilings, lifts and access all change that.
Dock types you will hear about
HomeAdvisor’s national guide groups docks by how they are supported:[1]
| Type | Published range | Notes |
|---|---|---|
| Floating | $15–$35 per sq ft | Rises and falls with the water; prefabricated aluminum options start lower |
| Piling (fixed) | $20–$40 per sq ft | Supported on driven piles; common where water levels and exposure suit it |
| Pipe | $1,000–$10,000 total | Lighter structure on pipe legs |
| Crib | $10,000–$50,000 total | Rock-filled cribs; the source notes these require permits for environmental reasons |
The same source reports that most docks fall between $15 and $40 per square foot, with a normal total range of about $4,000 to $26,000 nationally, and that labor is roughly half the budget.[1] Saltwater sites, deep water, boat lifts, roofs and barge access all push costs up.
What to verify before you hire
- Comparable work. Photos and addresses of docks they built in similar water, and how long ago.
- Where they work. Whether your waterbody and town are inside the area they actually serve.
- Insurance. Current general liability and workers’ compensation certificates, issued to you by the insurer or agent.
- Licenses. Ask which licenses apply to the work, including electrical for lifts and lighting, and verify them with the issuing agency.
- Permits. Who prepares and submits applications, and whether that is in the price.
- References. Recent customers you can call, ideally with docks a few years old.
Our page on how we review contractors explains the checks we will perform before listing any builder.
What a written scope should include
- Dock dimensions and layout, with a drawing
- Piling material, size, number and embedment depth
- Framing and decking materials and fastener type
- Lift capacity and mounting, if included
- Electrical and lighting, and who performs it
- Permits and authorizations, and who is responsible
- Schedule, payment terms tied to completed work, and warranty terms
Permits and approvals
Docks and piers sit in or over the water, so several layers of approval can apply:
- Federal. The U.S. Army Corps of Engineers evaluates permit applications for “essentially all construction activities that occur in the Nation’s waters,” which includes most new docks and many rebuilds in navigable waters.[2]
- State. Many states own the submerged land under the water and require a lease, easement or registration for structures over it; coastal states also run coastal management programs, listed in NOAA’s directory.[3] On lakes and rivers, the state, a lake authority or a utility may set the rules.
- Local. City or county permits, setback and length limits, and HOA rules.
Like-for-like repairs are often treated differently from rebuilding, enlarging or changing a dock’s footprint. Confirm with your contractor which approvals apply before work starts, and who is obtaining them. Our permits guide explains how the layers fit together.
HomeAdvisor notes that many areas cap dock length at one quarter of the waterway’s width; check what applies to you.[1]
Finding dock builders near you
Our contractor directory lists dock builders and other marine contractors by state and city, drawn from public business information. Listings are marked “Not yet reviewed” until a business passes our checks, so use the checklist above for every builder you call. If you would rather we point you in the right direction, describe your project.
Questions owners ask
Should the same company build my dock and my seawall?
It can make sense if they genuinely do both, because the two structures interact. Do not assume a dock builder does seawalls or the reverse; ask for examples of each.
Floating or fixed dock?
It depends on water level changes, depth, wave exposure and how you use the dock. Ask each builder why they recommend one over the other for your site.
Sources
- How Much Does Building a Dock Cost?, HomeAdvisor. Accessed October 12, 2026. Page updated June 19, 2026. National estimates.
- Regulatory Program and Permits, U.S. Army Corps of Engineers. Accessed October 12, 2026.
- The National Coastal Zone Management Program — state programs, NOAA Office for Coastal Management. Accessed October 12, 2026.