Crawl Space Repair in Mount Sinai, New York

Find trusted local contractors for crawl space encapsulation, waterproofing, mold removal, and more in Mount Sinai. 22 local companies found.

Local Price Estimates — Mount Sinai

Encapsulation$3,000$8,000
Repair$1,500$6,000
Waterproofing$1,500$5,000
Mold Removal$500$4,000
Inspection$150$400

* Estimates based on local market rates. Get free quotes for exact pricing.

Crawl Space Contractors in Mount Sinai

Dutton Restoration Services

107 Eagle Ln, Hauppauge, NY 11788, USA

5.0

90 reviews

Crawl Space Repair

Rainbow Waterproofing Inc

610 N Bicycle Path, Port Jefferson Station, NY 11776, USA

5.0

5 reviews

Waterproofing

WeatherFoam Insulation

1054 NY-25A, Mt Sinai, NY 11766, USA

5.0

84 reviews

Insulation

Magic Basement Services

104 Lake Ave S Unit 4B, Nesconset, NY 11767, USA

5.0

17 reviews

Drainage

Foundation Crack Repair LLC | Basement Crack Repair | Basement Waterproofing | French Drains

30 Lincoln Ave, Sayville, NY 11782, USA

5.0

15 reviews

WaterproofingFoundation RepairDrainage

Zavza Seal LLC

377 Main St, Center Moriches, NY 11934, USA

5.0

11 reviews

Crawl Space Repair

Long Island Mold Guy

51 Joan Ave, Centereach, NY 11720, USA

5.0

85 reviews

Mold Removal

All Island Restoration

700 Union Pkwy STE 9, Ronkonkoma, NY 11779, USA

5.0

298 reviews

Crawl Space Repair

Magic home restoration

104 Lake Ave S Unit 4A, Nesconset, NY 11767, USA

5.0

73 reviews

Crawl Space Repair

K.O.S. Restoration

11 Farber Dr Unit F, Bellport, NY 11713, USA

5.0

324 reviews

Crawl Space Repair

New York Waterproofing - Foundation Basement Waterproofing Solutions Contractors

5 Bell Cir, Port Jefferson, NY 11777, USA

5.0

3 reviews

WaterproofingFoundation RepairDrainage

Complete Basement Systems

13 Rockwood Ave, Massapequa, NY 11758, USA

4.9

57 reviews

Drainage

HRC Waterproofing

116-14 142nd St, Jamaica, NY 11436, USA

4.9

77 reviews

Waterproofing

Zavza Seal LLC

80 Orville Dr Suite 100, Bohemia, NY 11716, USA

4.9

112 reviews

Crawl Space Repair

Global Mold Solutions LLC

785 Terry Rd, Hauppauge, NY 11788, USA

4.9

75 reviews

Mold Removal

New Horizon Homes Inc

1430 Hallock Ave, Port Jefferson Station, NY 11776, USA

4.9

123 reviews

Crawl Space Repair

Healthy Basement Systems

1165 Station Rd, Medford, NY 11763, USA

4.8

635 reviews

Drainage

Foundation Crack Repair LLC

267 W Main St, Patchogue, NY 11772, USA

4.7

12 reviews

Foundation Repair

Selden Concrete Corp.

28 Pine St, Selden, NY 11784, USA

4.7

36 reviews

Crawl Space Repair

Rain King Waterproofing

222 Purchase St Suite 231, Rye, NY 10580, USA

4.6

29 reviews

Waterproofing

Arid Restorational Technologies Inc.

10 George Ave, Shoreham, NY 11786, USA

4.6

16 reviews

Crawl Space Repair

All Hours Restoration And Mold Remediation

17 Roosevelt Ave, Nesconset, NY 11767, USA

4.5

10 reviews

Mold Removal

FAQs — Crawl Space Services in Mount Sinai

How much does crawl space repair cost in Mount Sinai?

Crawl space repair in Mount Sinai, New York typically costs between $1,500 and $6,000, depending on the extent of damage and services required.

How much does crawl space encapsulation cost in Mount Sinai?

Crawl space encapsulation in Mount Sinai typically costs between $3,000 and $8,000. The price depends on the size of your crawl space and the materials used.

What crawl space services are available in Mount Sinai?

Local contractors in Mount Sinai offer encapsulation, repair, waterproofing, mold removal, insulation, cleaning, and inspection services. Use our directory to find and compare local professionals.

Crawl Space Concerns in New York

Northeast crawl spaces face dual challenges: extreme cold in winter drives up energy costs and risks pipe freezing, while spring snowmelt creates moisture problems. Insulation and encapsulation address both issues, keeping pipes safe in winter and moisture controlled in spring.

!Freezing pipes in crawl spaces are a major winter risk without proper insulation
!Frost heave can shift foundation walls and floor supports
!Ice dam formation on roofs redirects snowmelt into foundations
!Cold floors above uninsulated crawl spaces increase heating bills 15–25%
!Spring snowmelt creates seasonal flooding and moisture surges

Local Tip — New York

If your floors feel cold in winter, the crawl space is likely uninsulated or poorly sealed. Encapsulation with wall insulation (R-10 to R-19) can raise floor temperatures 5–10°F and reduce heating costs significantly.

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Pro Tip

Prices vary by location, crawl space size, and severity. Always get 2–3 quotes before hiring.