Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Williamstown, PA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Williamstown, PA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Williamstown, PA

*The Angi rating for Radon Detection And Reduction companies in Williamstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Williamstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on June 05, 2026

Find Radon detection and reduction specialists in Williamstown

Avatar for MCJ Home Inspection
MCJ Home Inspection
5.0(
3
)

Serving Williamstown, PA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

With over 5 years of experience MCJ Home Inspection LLC was founded on the belief that your home is special place. The home buying experience can be a long and daunting process. It can also involve considerable financial investment.\n\nAt MCJ Home Inspection LLC we understand your concerns and will work diligently to help you make the best decision possible by providing you with clear, reliable and complete reports.\n\nwww.mcjhomeinspection.com\n\nTeachers, First Responder & Military Veteran Discounts Available - Inquire Within \n\nAccepts Cash, Checks, Major Credit Cards & Venmo

5 neighbors recently requested a quote
Request Quote
Avatar for Roof 2 Basement Home Inspection Services, LLC
Roof 2 Basement Home Inspection Services, LLC
4.9(
63
)

Serving Williamstown, PA and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Terry does a thorough inspection and has a great write up with extensive photos and details. He is very responsive to all requests. I highly recommend him!"
Response time8 hrs
Recommended by98%of homeowners
Request Quote
Avatar for MCJ Home Inspection, LLC
MCJ Home Inspection, LLC
4.9(
35
)

Serving Williamstown, PA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Our inspector was Alan and he was, in a word, excellent. He truly went above and beyond. We highly recommend MCJ in general and Alan in particular."
Response time5 hrs
Response rate100%
Recommended by89%of homeowners
Request Quote
Radon Detection and Reduction questions, answered by experts

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

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

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

The Williamstown, PA 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.

See all articles