*The Angi rating for Radon Detection And Reduction companies in Annapolis, MD 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 Annapolis, MD 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 September 26, 2025
Serving Annapolis, MD and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Wonderful service from start to finish! They repeated a radon test and got quite a different reading than the building inspector who apparently did not place the canisters appropriately I thank Ted for saving us from the radon risk. Highly recommend and very professional"
Serving Annapolis, MD and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"The owner, Jerry Stal, provided a competent inspection and assured me that all that my basement needed was a surface treatment. This was inexpensive. He saved me thousands of dollars because the other companies recommended a lot of tear down and other costly actions."
Serving Annapolis, MD and surrounding areas
Approved
In business since 2018
Emergency services offered
Small jobs welcome
"Incredibly professional, impressively plainspoken, and implausibly well priced- H and G listen to your needs, respond to your problem, and treat you like a person -THANK THE LORD- great local biz"
Serving Annapolis, MD and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"I used Vespene Radon Testing earlier this year and was very satisfied with the experience from start to finish. They were punctual, professional, and very knowledgeable on all things radon testing. Results came back quickly, which mattered to me as a parent of a young child. Having reliable data in hand promptly gave me confidence that our home was safe. I would definitely use them again for any of my radon testing needs ."
Serving Annapolis, MD and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"I found them to be very punctual."
Serving Annapolis, MD and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Work team was polite, on time every day and highly professional. They explained the process in detail and kept us informed during each phase. I highly recommend D&H."
+9
Serving Annapolis, MD and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
At 911 Restoration by Germain Brothers LLC, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, fires and storms. Here’s what sets us apart:\n\nMold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety.\nWater Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs.\n\nComprehensive Services: Beyond mold and water remediation, we handle storm and fire damage repairs, as well as basement flood cleanup\nChoose 911 Restoration by Germain Brothers LLC for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.
Serving Annapolis, MD and surrounding areas
In business since 2017
Free estimates
"Atlantic Radon has done an excellent job to install a radon fan in our new house passive radon system and reduced the radon level in our basement by 75% to the lowest possible rate. Tom is very knowledgable and honest guy to have as a service contractor to insatll any Radon mitigation system at affordable cost in a timely manner."
Serving Annapolis, MD and surrounding areas
In business since 1998
"Needed Radon unit installed as part of home sale. Mike was responsive and fairly priced. Explained everything thoroughly and completed work on time. Highly recommend."
Serving Annapolis, MD and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"Responsive, on time and returned the report within one business day. The report was extremely thorough and helped to identify issues for resolution. I would absolutely hire them again!"
+1
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a radon mitigation system in Baltimore, MD, depends mostly on the type of system being installed. Use this guide to learn about your options.
The cost of a radon mitigation system in Washington, D.C., depends mostly on the type of system being installed. Use this guide to learn about your options.
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.
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.
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.
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.
