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Best radon detection and reduction specialists near Holmdel, NJ

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Top-Rated Radon detection and reduction specialists in Holmdel - Updated Nov 2026

Avatar for Radon Shield LLC
Radon Shield LLC
4.9(
103
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holmdel, NJ and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"OUTSTANDING WORK on short notice. The Radon Shield team did some very impressive work for us and we will certainly reach-out to them for other services in the future. For this project, we asked Mr. Ugorji and his team to install 2 separate radon mitigation systems for a large sq ft home with a basement air radon concentration well over 4 pCi/L where masonry drilling would be required for the installation. We also faced difficult time constraints, but Mr. Ugorji arranged to begin work the next day. Before visiting the work site, we discussed the installation, the home, expectations. He provided a clear and accurate assessment of the costs and time/effort required for our project (our final bill matched his initial assessment, nothing added, no surprises). The location for the installations, routing of piping and wiring, model fans to be used, attachment and sealing methods, follow-up testing, and much more were discussed before work began. Our preferences were addressed and pros/cons were weighed. Mr. Ugorji worked efficiently and his team tidied-up as the work progressed. All aspects of the installation were handled professionally. Care was taken to upgrade remote junction boxes and other components impacted by the new system. The routing of the suction/exhaust piping was thoughtfully designed, securely installed, and tightly sealed. When both systems were turned-on, they presented matching suction levels, indicating effective under-slab suction. The end result is a very effective radon mitigation system that has (after a few days of constant electronic monitoring) achieved a basement air concentration of 0.35 pCi/L. Mr. Ugorji followed-up with us a few days later to check on the new radon test levels and to ensure everything was as expected."
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+10

Recommended by100%of homeowners
Avatar for RADATA, LLC
RADATA, LLC
4.2(
200
)
Radon Gas - Abatement

Serving Holmdel, NJ and surrounding areas

In business since 1984

Free estimates

Warranties offered

"RAData did an excellent job with analysis, installation, and verification for our radon remediation project. I would highly recommend them if you want a professional and timely installation for your radon system!"
System on back of house
System next to downspouts
System in back corner
System by AC units
interior pipe in garage

+7

Recommended by95%of homeowners
Avatar for Ocean Home Inspections
Ocean Home Inspections
5.0(
10
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holmdel, NJ and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

Choosing the right home is a big decision. We'll be there for you to help you feel confident in your whatever choice you make.\n\nLicensed home inspector and radon measurement technician based out of Oakhurst, NJ.\n\nServicing the entire state of NJ.

Cups tucked into walls can mean leaks. Keep an eye out!
Recommended by100%of homeowners
Avatar for Mr Home Inspector LLC
Mr Home Inspector LLC
4.7(
14
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holmdel, NJ and surrounding areas

In business since 2004

Free estimates

Credit card accepted

NJ LICENSE #: 24GI00052700. RADON LIC #: MET12754 NJ Home Inspection, Professional Home Inspections - Highest Qualifications, Personal Service - Ethical & Trustworthy - Competitive Pricing - Online Appointments. New Jersey Licensed Home Inspector, Certified ASHI/NACHI Home Inspection.... Termite, Radon, Lead, Mold, Infrared Imaging, Above Ground Oil Tanks & Environmental Reports. Our 15th Year inspecting homes & buildings in New Jersey. We are a locally owned Company....not a franchise, Independent.\nBuying a house is one of life's biggest decisions. Before you close, you'll want a professional inspection of the house to ascertain its true condition. All our home inspectors have first-hand knowledge of the building trades and are members of the American Society of Home Inspectors (ASHI).Your home inspector will provide a written report evaluating the house's major systems and outlying areas, including:Exterior\nDriveways, walkways, grade steps, patios and retaining walls \nBuilding perimeter, land grade and water drainage adjacent to the foundation \nIdentify exterior items that might adversely affect the structure \nWindows, doors, exposed area of chimneys, rain gutters and roof\nInteriorFoundation walls, grade slab and floor slab including inspection for water damage Exposed bearing walls, posts, piers, beams, sub-floors, chimney and stairs Roof structure and attic insulation \nElectrical, heating and cooling, and plumbing systemsDiscover the true condition of the house you are buying. Contact me today!

Recommended by92%of homeowners
Avatar for Professional Home Inspections of New Jersey LLC
Professional Home Inspections of New Jersey LLC
4.6(
87
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holmdel, NJ and surrounding areas

In business since 1987

Free estimates

Credit card accepted

"

Peter came to my house to do a full home inspection and a radon test of my three family home.  He actually arrived a few minutes before I did.  I gave him some background on the property and outlined for me what areas are included in the inspection and then he got to work.  The inspection took around three hours.  Peter took a lot of photos which was great.  I have a flat roof and this is a pretty high building and I refuse to go up there.  So his photos really came in handy for me.  And I also have an attic area that I could not walk into, so having the pictures are very helpful in this instance as well. 

He is also very knowledgeable and informed on every area that he covered and he does not mind being interrupted with questions.  He gave me a lot of great suggestions and really helped me to understand clearly and simply what areas I should pay close attention to and address.  He takes his time and always wants to know if you have questions about anything.  I highly recommend Peter. 

Thanks again Peter for your review of my property.  The report is well written, detailed and will be very helpful in addressing items that need my immediate attention.


Donna Harris


"
.
Chimney Needs Repair
Don't close before you get leaks repaired.
Old Electrical Panels can cause fires.
Recommended by94%of homeowners
Avatar for Quality Home Inspection Services LLC
Quality Home Inspection Services LLC
4.8(
17
)
Radon Gas - Testing

Serving Holmdel, NJ and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"I am a first-time home buyer who was looking to buy in Newark, NJ. I was Hesitant about the foundation walls, heating and electrical systems in the home. Because they are well-regarded as trustworthy a friend of mine, who had previously had issues with her home, suggested I call Quality Home Inspections. When I spoke with the gentleman on the phone (very polite), All my questions were answered in detail and my concerns were alleviated. Quality Home Inspections also provided me with lead and radon inspections. The best part of all was receiving the inspection results in a time efficient manner. They were very professional. I am currently moving forward with purchasing the house and recommending Quality Home Inspections to anyone looking for a great lead/radon home inspection Service."
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Response time9 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for D KAPRIELIAN HOME INSPECTIONS
D KAPRIELIAN HOME INSPECTIONS
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holmdel, NJ and surrounding areas

Free estimates

Our company provides Certified Home Inspection, radon measurement, termite inspection and mold assessment. We are located in Edison, NJ. We service all the state. Our staff background is strong in the construction business, we will take on any job, and we are willing to explain in detail our Inspections so you can make the best choice.

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+7

Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The Holmdel, NJ homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.