💰 Bottom Line — Water Damage Restoration Cost on Long Island
Water damage restoration on Long Island typically costs $2,500 to $15,000 depending on how much water, what areas were affected, and whether mold has developed. Most standard claims fall between $4,000 and $8,000. Major flooding or sewage events can exceed $20,000.
Cost by Damage Category
| Damage Type | Typical Cost Range | Insurance Covered? |
|---|---|---|
| Minor leak (single room, caught early) | $1,500 – $3,500 | Usually yes |
| Burst pipe (1–2 rooms affected) | $3,000 – $8,000 | Yes |
| Basement flooding (finished) | $5,000 – $15,000 | Depends on cause |
| Basement flooding (unfinished) | $2,000 – $6,000 | Depends on cause |
| Sewage backup cleanup | $3,000 – $10,000 | With rider/endorsement |
| Major flooding (multiple floors) | $15,000 – $40,000+ | Depends on cause |
| Roof leak with interior damage | $2,500 – $7,000 | Yes (if from storm) |
What's Included in Restoration Cost
1. Water Extraction
Industrial truck-mounted or portable extraction equipment removes standing water fast. For a typical basement flooding scenario, extraction alone costs $500–$1,500 depending on water volume.
2. Structural Drying
After extraction, industrial dehumidifiers and air movers run for 3–5 days minimum to draw moisture out of walls, floors, and substructures. Equipment rental and monitoring typically adds $800–$2,000.
3. Demolition of Damaged Materials
Wet drywall, insulation, flooring, and cabinets must be removed before drying is complete — leaving them causes mold. Demolition and disposal runs $500–$3,000 depending on scope.
4. Mold Prevention and Remediation
Anti-microbial treatment is standard in all water restoration. If mold has already developed, full remediation adds $1,500–$6,000 or more depending on affected area.
5. Reconstruction
Replacing drywall, insulation, flooring, cabinets, and finishes is typically the largest cost component. A single-room reconstruction runs $2,000–$6,000; a finished basement runs $8,000–$20,000+.
Does Insurance Pay for Water Damage Restoration?
Most water damage restoration on Long Island is fully covered by homeowners insurance — if the cause was sudden and accidental (burst pipe, appliance failure, storm breach). Groundwater flooding requires a separate flood policy. Sewage backup requires a specific endorsement.
Greene Group Construction Corp. handles the entire insurance claim process. We document the damage, file the claim, meet the adjuster, and manage all paperwork — at no extra charge to you.
Learn more about water damage insurance claims on Long Island →
📞 Free Water Damage Assessment
We'll assess your damage, give you a detailed written estimate, and tell you exactly what your insurance should cover — at no cost. Call (631) 532-7346 — we respond in 60 minutes.