*The Angi rating for Radon Detection And Reduction companies in O'ahu, HI 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 O'ahu, HI 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 August 16, 2025
Serving O'ahu, HI and surrounding areas
In business since 1995
Free estimates
Credit card accepted
"Mohammad is very knowledgeable, he's been doing it for a very long time and it shows in his final product. I reference Mohammed's knowledge on consulting issues that can range from asbestos and other hazardous problems."
Serving O'ahu, HI and surrounding areas
In business since 2008
Free estimates
Small jobs welcome
"So thankful for Joe! He responded promptly and was able to conduct his inspection the very next day. Very professional, knowledgeable and kind. I will be recommending Arete Home Inspectors to everyone. Mahalo nui!"
Serving O'ahu, HI and surrounding areas
In business since 2021
Free estimates
Credit card accepted
Hippo Home Inspections is the solution to all of your home inspection needs. We take great pride in our extreme professionalism, timeliness, and superior customer service on every job. We make sure to develop a lasting relationship, so that the next time service is needed, there will be no question on who to call.
Serving O'ahu, HI and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Professional, courteous, and knows what he's doing. I would highly recommend anyone to use his service."
Serving O'ahu, HI and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"I am awaiting for his quotation for my home and two others homes. Mrs. Julia Duarte my mother who has two homes that she would like to see his work His name is DREW. He never gave me his card, although he has my email address."
Serving O'ahu, HI and surrounding areas
Credit card accepted
"The work was done on time and on budget and the workers are on time and professional."
If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.
You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional.
Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.
Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.
In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.
From average costs to expert advice, get all the answers you need to get your job done.
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Did your radon test come back high? Here's what you need to know about how to install a radon mitigation system to protect your home and family.
A home inspection is an investment in your property's health and longevity. Discover why a home inspection is important even if you don’t plan to sell.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
