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Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</p></div>

Q: What are the benefits of radon mitigation?

• <div><p>Mitigation reduces radon levels, protecting your health and complying with safety standards.</p></div>

Q: What level of radon is considered safe or dangerous?

• <div><p>No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in King William, VA

*The Angi rating for Radon Detection And Reduction companies in King William, VA 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 King William, VA 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 February 10, 2026

Reviewed in February 2026
The Tree trimming was done on time and within the original budget. The quality and ease of the crew working was excellent. Crew was polite, easy to communicate with owner and crew. We are very satisfied with the final result and we will definitely use Humberto's Tree Service again. In fact, we...
Humberto Tree Service
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Reviewed in October 2025
I recently hired No More Dirty Roofs to clean my sidewalks, house, and patio, and I am absolutely delighted with the results! Their team was professional and efficient, transforming my outdoor spaces beautifully. My sidewalks now look pristine, and the cleaning made my house shine like never...
No More Dirty Roofs
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Reviewed in July 2025
I hired JHM Earth Aesthetics to remove leaves and small shrubs around my shed and carport. They were very quick to respond to my request for service and quickly came out to give me a quote, it was very fairly priced. The work on my yard was done only one day after the quote was given, and they...
JHM Earth Aesthetics, LLC
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Reviewed in March 2025
DanDale was very helpful and answered all of our questions throughout the process! Once the final product was installed, I even asked the team to adjust placement of the fence, and they obliged with no complaint saying they want their customers happy!
DanDale Fence
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Reviewed in February 2024
The work was done quick and reliably. I woild recommend for future service and repairs.
Flat Creek Mechanical & Construction LLC
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Reviewed in January 2024
It went perfect they were very helpfull in the whole institution they replaced all my wall receptacles and most of my light switches they did more than a good job it was fanominal as for thr whole heating and air system I've never felt so cold a/c and such good get they put in a 3ton Goodman air...
A&D Home Improvement
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Reviewed in October 2023
"Very professional and friendly. Was very thorough in treating the home and exterior. Would highly recommend this technician. "
Landlock Pest Control
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Reviewed in June 2023
Quick to respond and fair price quoted. Work was done efficiently with the safety of me and my property in mind. I have used his services twice in 2 years and would if needed again. Trees cut and removed.
Brad the Tree Man
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Reviewed in March 2023
Called and the technician was out the next morning. Very friendly , professional and even helped diagnosis a door issue while he was there. Highly recommend
77 Auto Glass
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Reviewed in July 2021
My wife and I noticed our AC seemed to be struggling to keep up over the past couple of days. I called Merritt Homes at 9am on Thursday morning, and had Chris there at 1pm to diagnose and fix the issue. Couldn’t have asked for a faster service! He also took the time to call me, as I was at work...
Merritt Homes LLC
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Find Radon detection and reduction specialists in King William

All States Air Duct Pro

3.1(

236

)

Serving King William, VA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"o.k. Wasn't impressed
"

Recommended by49%of homeowners

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Advanced Home Inspection, LLC

4.4(

)

Serving King William, VA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Been working with them for 5 + years now, and have had nothing but great feedback from customers and the quality of work is very thorough."

Example of estimate cost to rectify incl in report

Response time7 hrs

Response rate97%

Recommended by80%of homeowners

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Allstates Home Inspections

New to Angi

Serving King William, VA and surrounding areas

In business since 2007

Free estimates

Credit card accepted

We have over 23 years of experience in the business. Here at we pride our company on reliability, integrity, quality work, and prompt service. We are experts in our trade and will do our best to keep you as educated as we can for the duration of your project. We look forward to earning your business!

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Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The King William, VA 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

Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
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.
Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
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.
Dan Simms
•
Apr 5, 2026Apr 5, 2026
5 Questions to Ask About Radon Gas Abatement
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
Amy Freeman
•
May 2, 2026May 2, 2026
How to Get Rid of Radon in Your Home
Radon can seep into your home through cracks and small openings. Here's how to get rid of radon and why you need to do it.
Kyle Schurman
•
May 21, 2026May 21, 2026
How Does a Radon Mitigation System Work? And How Do You Keep Yourself Safe?
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.