Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in King William, VA

Q: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Q: Do radon mitigation systems decrease home value?

• <div><p>No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.</p></div>

Q: How do you remove radon from your home?

• <div><p>You can vent radon out of your house sometimes by simply opening a window, but it won&rsquo;t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.</p></div>

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

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</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

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

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

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.
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.
Jacqueline DeMarco
•
May 2, 2026May 2, 2026
What Is Radon and How Does It Get In Your Home?
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.
Jacqueline DeMarco
•
Apr 5, 2026Apr 5, 2026
DIY Radon Mitigation: A Step-by-Step Guide
Want to learn how to master DIY radon mitigation? We have a step-by-step guide on how to complete this challenging project on your own.
Kate Fann
•
Apr 9, 2026Apr 9, 2026
Radon Mitigation System Diagram: Understanding How It Works
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.