Crawl Space Repair in Port Jefferson, New York
Reviewed by Michael Peterson· Licensed Home Inspector
24 crawl space companies serve Port Jefferson, New York, together holding 2,378 customer reviews. All Island Restoration is the highest-rated at 5.0★ (298 reviews). Local crawl space repair typically runs $1,500–$6,000, and full encapsulation $3,000–$8,000. The most common services offered here are crawl space repair, drainage, mold removal.
Find trusted local contractors for crawl space encapsulation in Port Jefferson, waterproofing in Port Jefferson, mold removal in Port Jefferson, and more in Port Jefferson.
Local Price Estimates — Port Jefferson
* Estimates based on local market rates. Get free quotes for exact pricing. See the full repair cost guide, encapsulation cost guide, or cost calculator.
Crawl Space Contractors in Port Jefferson
104 Lake Ave S Unit 4A, Nesconset, NY 11767, USA
73 reviews
700 Union Pkwy STE 9, Ronkonkoma, NY 11779, USA
298 reviews
516 Long Beach Rd Suite B, St James, NY 11780, USA
140 reviews
5 Bell Cir, Port Jefferson, NY 11777, USA
3 reviews
610 N Bicycle Path, Port Jefferson Station, NY 11776, USA
5 reviews
104 Lake Ave S Unit 4B, Nesconset, NY 11767, USA
17 reviews
555 Lake Ave, St James, NY 11780, USA
103 reviews
30 Lincoln Ave, Sayville, NY 11782, USA
15 reviews
unit 15 Knickerbocker Ave #390, Bohemia, NY 11716, USA
129 reviews
1121 Lincoln Ave Unit G, Holbrook, NY 11741, USA
68 reviews
80 Orville Dr Suite 100, Bohemia, NY 11716, USA
112 reviews
1430 Hallock Ave, Port Jefferson Station, NY 11776, USA
123 reviews
13 Rockwood Ave, Massapequa, NY 11758, USA
57 reviews
785 Terry Rd, Hauppauge, NY 11788, USA
76 reviews
501 Middle Country Rd, Coram, NY 11727, USA
198 reviews
835 Marconi Ave, Ronkonkoma, NY 11779, USA
65 reviews
267 W Main St, Patchogue, NY 11772, USA
12 reviews
10 George Ave, Shoreham, NY 11786, USA
16 reviews
17 Roosevelt Ave, Nesconset, NY 11767, USA
10 reviews
FAQs — Crawl Space Services in Port Jefferson
How much does crawl space repair cost in Port Jefferson?
Crawl space repair in Port Jefferson, New York typically costs between $1,500 and $6,000, depending on the extent of damage and services required. With 24 local companies to compare, getting 2–3 quotes usually saves 15–30%.
How much does crawl space encapsulation cost in Port Jefferson?
Crawl space encapsulation in Port Jefferson typically costs between $3,000 and $8,000. The price depends on the size of your crawl space and the materials used.
Who is the top-rated crawl space company in Port Jefferson?
All Island Restoration is the highest-rated crawl space contractor in Port Jefferson with a 5.0★ rating from 298 reviews. Mold Testing Long Island NY (5.0★, 140 reviews) is also highly rated. Ratings shown are from public customer reviews.
How many crawl space contractors serve Port Jefferson?
24 crawl space companies are listed for Port Jefferson. The average local rating is 4.9★ across 2,378 reviews. Contractors in nearby New York and Brooklyn also serve the area.
What crawl space services are available in Port Jefferson?
Port Jefferson contractors most commonly offer crawl space repair, drainage, mold removal, alongside repair, insulation, cleaning, and inspection. Compare providers above to see who offers what.
What should Port Jefferson homeowners know before hiring a crawl space contractor?
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. Always verify licensing and insurance, and get itemized quotes from at least two Port Jefferson-area companies before signing.
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.
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.
Recommended services for Port Jefferson:
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Helpful Guides
Pro Tip
Prices vary by location, crawl space size, and severity. Always get 2–3 quotes before hiring.