• DEC # 13VH02010700 | NJDEP # US 243905 | A-901 # SW 2966 | NJDEP LAB # 13035
    Radon# MIB#93612
255 Squankum Road
Farmingdale, NJ 07727

Radon Mitigation and Testing

New Jersey’s most reliable Radon Mitigation specialists.

Certified Environmental specializes in all aspects of radon testing and mitigation. We repair and service old systems and fans, as well as installing new radon systems. Our licensed radon mitigation specialists are on every job site to insure quality professional work.

We offer the following services:

• Radon-in-Air testing with EPA open-faced charcoal canister
• Sealed radon testing for real-estate transactions
• Radon testing in schools & commercial buildings
• Radon mitigation of residential buildings
• Radon mitigation of commercial structures
• Existing mitigation systems inspections and service

Radon Testing and Mitigation Services

Every radon system we install is unique dependent upon the home itself. We send a certified radon specialist to the house for every radon estimate to ensure proper system design and accuracy of the price quote. The price we give you on the estimate is the price the installation will cost, there are no surprise or hidden fees.


All radon systems installed by Certified Environmental are under guarantee and warranty for a period of 1 year from the date of installation and include parts and labor. This covers the workmanship, materials, and a radon level below 4pCi/L. Most radon fans come with a five year manufacturers warranty. The guarantee and warranty are transferable with the sale of the property.

Certified Environmental offers a no risk guarantee on all mitigation system installations, if we cannot mitigate your home there is NO cost to you.

Radon Links


What is radon?

Radon is a colorless, odorless radioactive gas that seeps up from the earth. When inhaled, it gives off radioactive particles that can cause lung cancer. According to EPA studies radon is the leading cause of lung cancer among non smokers.

Where does radon come from?

The soil. Radon is produced from the natural decay of uranium that is found in nearly all soils. Uranium breaks down to radium. As radium disintegrates it turns into radon. As a gas, radon moves up through the soil and into the air you breathe.

Where is your greatest exposure to radon?

While radon is present everywhere, and there is no known safe level, your greatest exposure is where it can concentrate indoors. And where you spend most time at home. Your home can have radon whether it be old or new and with or without a basement.

What does it cost?

The goal of a radon mitigation system is to reduce the indoor radon levels to below the EPA action level of 4 pCi/L. A quality radon reduction (mitigation) system is often able to reduce the annual average radon level to below 2 pCi/L. In general, costs can range from approximately $1300-$2500, with the average reduction system costing approximately $1600 including all permits and retests. The average cost if you already have a pre installed passive radon pipe in your home can range from $600-$1000 including permits and retest.



Select an option below to submit an online form.

For Homeowners
For Realtors
For Builders

For Homeowners

For Realtors

For Builders