Directory
Water Damage, Mold and Restoration Companies on Long Island
Long Island has 471 restoration and remediation companies in our listings across 95 cities, with 28,500 public reviews between them.
Map data © OpenStreetMap contributors
Cities
- Bohemia21
- Ronkonkoma19
- Coram16
- Bay Shore13
- Deer Park13
- Farmingville13
- Hauppauge13
- New Hyde Park12
- Huntington Station11
- Smithtown11
- Holbrook10
- Medford10
- Patchogue10
- Valley Stream10
- Huntington9
- Plainview9
- Yaphank9
- Farmingdale8
- Jericho8
- Lindenhurst8
- Massapequa8
- Oceanside8
- Westbury8
- East Meadow7
- Hicksville7
- West Hempstead7
- Cedarhurst6
- Commack6
- Freeport6
- Great Neck6
- Manhasset6
- Woodmere6
- Amityville5
- Baldwin5
- Centereach5
- Central Islip5
- Floral Park5
- Long Beach5
- Rockville Centre5
- Setauket-East Setauket5
- Syosset5
- Uniondale5
- West Babylon5
- Bethpage4
- Brentwood4
- Elmont4
- Garden City4
- Hempstead4
- Kings Park4
- Nesconset4
- Woodbury4
- Bellmore3
- Hewlett3
- Selden3
- St James3
- Wantagh3
- Babylon2
- Carle Place2
- Copiague2
- East Islip2
- Garden City Park2
- Islandia2
- Levittown2
- Lynbrook2
- Malverne2
- Melville2
- Mineola2
- North Babylon2
- Oakdale2
- Port Washington2
- Roslyn2
- West Islip2
- Albertson1
- Bayville1
- Bellport1
- Centerport1
- Dix Hills1
- East Northport1
- East Rockaway1
- Franklin Square1
- Glen Cove1
- Glen Head1
- Greenvale1
- Islip1
- Islip Terrace1
- Lake Grove1
- Locust Valley1
- Merrick1
- Miller Place1
- Mt Sinai1
- North Bellmore1
- Oyster Bay1
- Port Jefferson Station1
- Seaford1
- Williston Park1
By Service
- Water Damage Restoration353
- Mold Remediation300
- Mold Inspection and Testing251
- Fire and Smoke Damage Restoration273
- Sewage Cleanup178
- Biohazard and Trauma Cleanup75
- Hoarding Cleanup19
- Asbestos Testing and Abatement72
- Lead Paint Testing and Abatement49
- Storm Damage and Board Up136
- Odor Removal115
- Contents Cleaning and Pack Out45
What Makes Long Island Different
Long Island sits between the ocean and the Sound, and the South Shore is low and flat. Hurricane Sandy in 2012 pushed bay water into thousands of homes from Long Beach to the Great South Bay, and many streets there still flood at very high tides. Floodwater from outside is contaminated, and a standard homeowners policy does not cover it, so a separate flood policy is worth having near the water.
Nor’easters bring wind driven rain, heavy snow and ice dams, and pipes in crawlspaces and exterior walls freeze in cold snaps. Many homes were built in the years after World War II, and a lot of them have finished basements. Much of Suffolk has no public sewer, so a full cesspool or septic system can back up into the lowest drain in the house.
The water table is high near the bays, so basements and crawlspaces stay damp and mold grows on stored boxes, framing and carpet. Run a dehumidifier and keep basement humidity under 50 percent. Homes built before 1978 may have lead paint, and older pipe wrap, floor tile and siding can contain asbestos, so test before you tear anything out.
Most Reviewed in Long Island
- 1
Stanley Steemer24/7
Google rating 4.9 from 3,494 Google reviews
Top Rated 2026Most Reviewed 2026
Water DamageMoldFire and SmokeOdor
- 2
- 3
Citywide Sewer-Drain & Plumbing Corp24/7
Google rating 4.8 from 1,958 Google reviews
Top Rated 2026
Water Damage
- 4
American Fire and Flood24/7
Google rating 5.0 from 876 Google reviews
Top Rated 2026Most Reviewed 2026
Water Damage
- 5
- 6
CNS Environmental
Google rating 4.9 from 678 Google reviews
Top Rated 2026Most Reviewed 2026
MoldAsbestosLead Paint
- 7
Inspect-It 1st Property Inspections
Google rating 5.0 from 637 Google reviews
Top Rated 2026Most Reviewed 2026
Mold TestingAsbestos
- 8
- 9
The Inspection Boys
Google rating 5.0 from 534 Google reviews
Best in Farmingville 2026Top Rated 2026
Mold Testing
- 10
Bulovas Restorations24/7
Google rating 5.0 from 461 Google reviews
Best in Ronkonkoma 2026Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 11
All Island Plumbing Heating & Cooling24/7
Google rating 5.0 from 393 Google reviews
Top Rated 2026Most Reviewed 2026
Water Damage
- 12
A1 Restoration24/7
Google rating 5.0 from 377 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
Checking a License in Long Island
New York State requires a licensed mold assessor and a separate licensed mold remediator for mold jobs over 10 square feet, and the same company cannot do both on one job. Ask for both license numbers and look them up with the state before you sign. Asbestos work in New York must be done by a state licensed asbestos contractor with certified workers.
New York has no statewide license for general contractors, but Nassau County and Suffolk County each require home improvement contractors to hold a county license. Ask for that license number and check it with the county before you sign, and check with your town or village about the permits the job needs. Ask for proof of liability and workers compensation insurance, whether the technicians hold industry certification in water damage and mold remediation, and for older homes, whether the crew is certified for lead safe renovation.
What Jobs Cost in Long Island
| Job | Typical in Long Island | National typical |
|---|---|---|
| Water Damage Restorationper job, a single room of clean water | $1,150 to $3,400 | $1,000 to $3,000 |
| Water Damage Restorationper job, a typical drying job | $1,450 to $6,800 | $1,300 to $6,000 |
| Mold Remediationper job, a typical professional job | $1,700 to $6,800 | $1,500 to $6,000 |
| Mold Remediationper job, an attic | $2,300 to $8,400 | $2,000 to $7,500 |
| Mold Inspection and Testingper visit, a visual inspection | $225 to $700 | $200 to $600 |
| Mold Inspection and Testingper visit, an inspection with samples | $350 to $1,150 | $300 to $1,000 |
| Mold Inspection and Testingper visit, a clearance test | $350 to $900 | $300 to $800 |
| Fire and Smoke Damage Restorationper room, light smoke cleaning | $550 to $2,800 | $500 to $2,500 |
| Fire and Smoke Damage Restorationper job, a contained kitchen or room fire | $3,400 to $28,000 | $3,000 to $25,000 |
| Asbestos Testing and Abatementper job, a single area in a home | $1,350 to $5,600 | $1,200 to $5,000 |
| Asbestos Testing and Abatementper job, a 200 square foot kitchen floor | $1,700 to $3,400 | $1,500 to $3,000 |
| Asbestos Testing and Abatementper job, attic vermiculite, whole-house siding or several areas | $11,500 to $22,500 | $10,000 to $20,000 |
| Lead Paint Testing and Abatementper visit, an XRF inspection of a typical home | $350 to $800 | $300 to $700 |
| Lead Paint Testing and Abatementper visit, a risk assessment | $550 to $1,700 | $500 to $1,500 |
| Hoarding Cleanupper job, light clutter in a few rooms | $1,150 to $3,400 | $1,000 to $3,000 |
| Hoarding Cleanupper job, most homes | $2,300 to $17,000 | $2,000 to $15,000 |
| Hoarding Cleanupper job, biohazard or structural damage | $17,000 to $28,000 | $15,000 to $25,000 |