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Best Radon Testing in Brooklyn, NY

Compare 19 local radon testing providers in Brooklyn. Verified listings with real contact info.

19 verified providers · Updated 2026-04-19

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1

Sentinel Environmental

3.0 ★ (2 reviews)

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2

Five Boro Mold Specialist

4.6 ★ (58 reviews)

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3

Criterion Inspections

4.9 ★ (321 reviews)

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1

Sentinel Environmental

3.0 (2 reviews)
335 Throop Ave Suite 9, Brooklyn, NY 11221
Open 24 Hours
2

Five Boro Mold Specialist

4.6 (58 reviews)
394 Marcy Ave #1L, Brooklyn, NY 11206
Mon–Sun 6am–8:30pm
3

Criterion Inspections

4.9 (321 reviews)
132 Douglass St, Brooklyn, NY 11217
Open 24 Hours
4

Envirotech

4.9 (59 reviews)
1030 E 13th St, Brooklyn, NY 11230
Mon–Thu 24hrs · Fri 12am–5pm · Sat Closed · Sun 24hrs
5

Accredited Environmental Safety Corp

5.0 (20 reviews)
66-47 Grand Ave, Maspeth, NY 11378
Mon–Fri 8am–7pm · Sat 8am–4pm · Sun Closed
6

Top Home Inspection Services LLC

5.0 (53 reviews)
2602 Avenue U Suite 1005, Brooklyn, NY 11229
Mon–Fri 24hrs · Sat Closed · Sun 24hrs
7

GXD Home Inspections NYC

5.0 (54 reviews)
112 W 34th St. Suite 17051, New York, NY 10120
Mon–Sun 6:30am–9pm
8

BNF Consulting NYC

5.0 (270 reviews)
109-20 Queens Blvd #3E, Forest Hills, NY 11375
Mon–Fri 8am–8pm · Sat 8am–5pm · Sun Closed
9

HARRISON HOME INSPECTION, CCMI®

5.0 (76 reviews)
5 Tribeca Ave, Jersey City, NJ 07305
Mon–Sun 7am–10pm
10

Beyond The Beams Home Inspectors

5.0 (135 reviews)
215-02 23rd Rd, Bayside, NY 11360
Open 24 Hours
11

Safety First Home Inspections LLC

5.0 (60 reviews)
15 Avon Pl, North Arlington, NJ 07031
Open 24 Hours
12

Keys Home Inspection LLC

5.0 (448 reviews)
929 Harding St, Westfield, NJ 07090
Mon–Fri 9am–5:30pm · Sat–Sun Closed
13

Professional Radon Systems

4.4 (7 reviews)
27 Kramer Dr, Paramus, NJ 07652
Mon–Sun 8am–7pm
14

Square One Professional Home Inspectors Inc.

5.0 (173 reviews)
11 Starlight Ln, Levittown, NY 11756
Mon 7am–11pm · Tue–Wed 7am–11:30pm · Thu 7am–11pm · Fri 7am–11:…
15

Radon Mitigation Corporation of America (RMCA)

4.9 (64 reviews)
8 Vreeland Ave, Elmsford, NY 10523
Mon–Fri 10am–7pm · Sat–Sun Closed
16

Radon Testing Corporation of America

4.8 (26 reviews)
2 Hayes St, Elmsford, NY 10523
Mon–Fri 9am–5pm · Sat–Sun Closed
17

National Radon Safety Board (NRSB)

5.0 (1 reviews)
14 Hayes St, Elmsford, NY 10523
Mon–Fri 9am–5pm · Sat–Sun Closed
18

Radon Removal

4.9 (425 reviews)
776 Jernee Mill Rd #128, Sayreville, NJ 08872
Mon–Sat 24hrs · Sun Closed
19

The Proper Inspection

4.9 (89 reviews)
20 Glenville Rd, Greenwich, CT 06831
Mon–Sun 7am–8pm

Frequently Asked Questions

How much does radon testing cost in New York?

Professional radon testing typically costs $175 to $350. Short-term tests (48-96 hours) are used for real estate transactions. Long-term tests (90+ days) provide the most accurate annual average. NYSDOH recommends professional testing over DIY kits for real estate transactions, though DIY kits ($20-$40) are available at hardware stores.

Why is radon especially concerning in New York?

New York has varying radon levels depending on geology. Kings, Queens, New York (Manhattan), Suffolk, and Bronx counties include many homes where bedrock, fill, and foundation details can produce elevated radon. Even other areas of the state have measurable radon. NYSDOH considers it a public health issue and publishes county-level radon data.

Are radon testers required to be certified in New York?

Certification requirements vary by state. NYSDOH and professional organizations like the National Radon Proficiency Program (NRPP) or National Radon Safety Board (NRSB) recommend certified testers. For real estate transactions, use a certified professional to ensure legally defensible results.

What happens if my New York home has high radon levels?

If radon levels exceed 4 pCi/L, the EPA and NYSDOH recommend installing a radon mitigation system. Sub-slab depressurization is the most effective method and typically costs $1,000 to $2,000. State-certified contractors can perform mitigation. Mitigation reduces levels by up to 99%.

When should I test for radon in my New York home?

NYSDOH recommends testing all homes, especially in high-risk areas. Test when buying or selling, after major renovations affecting the foundation, or if you have never tested. Testing during cooler months (November through March) with windows closed provides the most representative results. Re-test every 2 years or after major changes to the home.

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