Guides
Long Island Bulkhead & Dock Guides
Answers to the questions Nassau and Suffolk waterfront homeowners actually ask, with local rules, real price ranges and linked sources.
Long Island Bulkhead Cost Guide (2026)
Per-foot ranges by material, itemized, with a calculator.
Bulkhead & Dock Permits, Explained
DEC's general permit, the Army Corps and the town layer, town by town.
Raising Your Bulkhead
Height rules and tidal flooding: the 18-inch allowance and why neighbors matter.
Waterfront Buyer's Bulkhead Checklist
10 things to check before you buy, plus the paperwork to ask for.
Storm damage to your bulkhead or dock: what to do in the first 48 hours
After a nor'easter on Long Island: staying safe around a damaged bulkhead, what to photograph, the insurance reality, and how repairs and permits work.
Bulkhead vs seawall vs retaining wall vs revetment: what's the difference?
What a bulkhead is, and how it differs from a seawall, a retaining wall, a revetment and a living shoreline, plus which ones Long Island permits allow where.
How long does a bulkhead last on Long Island? Timber, vinyl and steel
How long bulkheads last on Long Island: timber about 25–30 years, vinyl about 40. What shortens a wall's life, warning signs, and how long replacement takes.
Sinkhole behind your bulkhead? What it means and what the fix costs
A sinkhole behind a Long Island bulkhead means soil is escaping through the wall. The four usual causes, how each is fixed, and 2026 repair costs.
Vinyl vs timber vs steel bulkheads on Long Island: cost per year of life
Vinyl vs timber vs steel bulkheads on Long Island: price per foot, expected life, cost per year, and local rules like Southampton's treated-wood ban.
Why Long Island bulkhead quotes range from $150 to $1,500 a foot (and which number is real)
Published Long Island bulkhead prices run from $150 to $1,500 a foot. Here's what each number actually covers, with a worked 75-foot example.
Get a real number for your waterfront
Tell us the wall or dock, its length and your town. A licensed Long Island marine contractor calls you back to look at it and price it. Free, no obligation.