Quality Radon Testing for Safer Homes

in New York and Connecticut

Protect your family from the #1 cause of lung cancer in non-smokers.

Why Test for Radon Gas?

Radon is present in 1 out of every 15 homes, and is the #1 cause of lung cancer in non-smokers. It enters homes through the soil, silently building up in basements and living spaces. Each year, radon exposure is responsible for over 20,000 deaths in the U.S. Children and pets are especially vulnerable. Testing is the only way to know if your home is safe.

Longs GCS offers fast, certified, affordable radon testing services across the Lower Hudson Valley and Fairfield County, CT.

Signs of Radon in Your Home

Radon doesn’t cause visible symptoms in your home. But certain signs might indicate elevated risk:

🔻 Homes with basements or crawl spaces
🔻 Nearby homes have radon systems
🔻 Foundation cracks or water intrusion
🔻 Poor ventilation

And if you or a loved one experiences:

Excessive chest pain
Blood when coughing
Persistent cough
Shortness of breath
Hoarseness or wheezing
Frequent lung infections (Bronchitis/Pneumonia)

…it’s time to test your home.

Our Certified Radon Testing Process

When you book with Longs GCS, you’re getting a certified, high-quality radon testing service backed by the National Radon Safety Board.

Protect your loved ones. Ensure your home is safe.

Certified, local experts | Flexible scheduling & fast results | 24/7 online booking or phone support

One Call Inspect All: We are Your Complete Home Inspection Solution

(914) 260-8571

Consult with an expert

Request Your Home Inspection Services

Schedule your radon testing service online – 24/7 availability

Our Service Areas

Our team provides reliable services throughout the tri-county region including Westchester County, NY, Dutchess County, NY, and Fairfield County, CT.

We proudly serve Yorktown, Bedford, Chappaqua, Pound Ridge, Larchmont, Rye, Mamaroneck, White Plains, and many other local neighborhoods throughout the region.

Frequently Asked Questions About Radon Testing

What is radon and why should I test for it?

Radon is an odorless, colorless radioactive gas that seeps into homes from the surrounding soil. It’s the second leading cause of lung cancer in the U.S., and testing is the only way to know your home’s level.

How long does radon testing take?

A standard short-term radon test runs for about 48 hours using a continuous radon monitor. We place the device, retrieve it, and deliver your results with clear guidance on whether mitigation is recommended.

What radon level is considered unsafe?

The EPA recommends taking action if your home tests at 4.0 pCi/L or higher. We explain your result, what it means, and your options if levels are elevated.

Do you offer radon testing in Westchester and Fairfield County?

Yes. We provide certified radon testing throughout the Lower Hudson Valley, NY and Fairfield County, CT, either as a standalone service or as part of a full home inspection.

Radon Testing FAQs

Straight answers about testing, timing, and results.

Schedule Your Inspection

?How long does a radon test take?

We set a continuous radon monitor that runs for about 48 hours. Because we place it during the inspection visit, the result usually lands before your contingency window closes, and you are not booking a second appointment.

?My county is low risk on the EPA map. Should I still test?

Yes. Zone maps are county averages, and the EPA recommends testing every home regardless of zone. Radon depends on the bedrock and soil under one specific foundation, so the reading next door tells you nothing about yours.

?Is radon really a concern in Orange County?

The EPA maps all of Orange County as Zone 1, its highest predicted category, with average indoor levels expected above the 4 pCi/L action level. For homes in Montgomery, Blooming Grove, or Thompson Ridge we treat radon testing as standard, not optional.

?What happens if the result comes back high?

A high reading is fixable. We walk you through what the number means, mitigation is a well-established fix installed by dedicated radon contractors, and a retest afterward confirms the system brought levels down.

?What determines the cost of radon testing?

Whether it rides along with a full home inspection or runs standalone, plus the monitoring duration the situation calls for. Bundled with an inspection it is the most economical. Call (914) 260-8571 and we will quote your exact situation.

Where Radon Testing Matters Most

The EPA puts all of Orange County in radon Zone 1, its highest predicted category, so testing leads the conversation in Montgomery, Blooming Grove, South Blooming Grove, and Thompson Ridge. Westchester's county average is lower, but averages say nothing about one basement, which is why we still test across our whole service area.