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Avatar for Radon Abatement Services
Radon Abatement Services
4.9(
256
)

Serving California, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I used Radon Abetment Services LLC to install a radon system in my basement. John and his team were excellent and I highly recommend them to anybody with this need. John was able via video over phone identify where the system should go. His team was extremely professional and courteous. The installation took a day and the improvement in radon levels was remarkable. We would absolutely use them again."
Additional Photos
Recommended by97%of homeowners
Avatar for Radon Abatement Services, LLC
Radon Abatement Services, LLC
4.6(
135
)

Serving California, MD and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"After my basement test come back with significantly elevated radon, I contacted radon abatement services at the recommendation of a neighbor. A day and a half later, they were on site. While performing the initial walk through, the experienced and thoughtful professionals adapted their plan to utilize my sump pump. This was an effective strategy as it addressed the main source of radon and concealed the system in completely unfinished space. I just received my post mitigation radon results, and the system is working phenomenally. To sum it up, I was blown away by the responsiveness, thoughtfulness, and reasonableness and can't say enough positive things about this company. I don't ever post reviews, but in this circumstance I absolutely had to."
Response time10 mins
Recommended by98%of homeowners
Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)

Serving California, MD and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Chris was WONDERFUL! I just purchased a home and wanted to have a mold inspection done for peace of mind. Chris took time to explain the process and put my fears at ease with his vast knowledge. He reviewed the test results with me prior to closing which gave me the peace of mind I needed to confirm I was making a good purchase and great investment. I highly recommend Mid Atlantic Commercial Residential Real Estate Solutions. VERY PROFESSIONAL AND COURTEOUS!!"
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Recommended by100%of homeowners
Avatar for SWAT Environmental
SWAT Environmental
4.1(
91
)

Serving California, MD and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Mark did great work and made the radon abatement system blend well with the house. The office response time was slower than I would have liked, but the price and quality of work was worth the wait. All of the people I interfaced with were extremely helpful and nice. I would highly recommend this company."
Response time1 day
Recommended by90%of homeowners
Avatar for Green Environmental LLC
Green Environmental LLC
5.0(
9
)

Serving California, MD and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"I have had no problem with Green Environmental or its President, Mr. Barkley. This company has done several homes for us, all of which have been certified lead free as our preferred choice and objective. Mr Barkley is punctual, completes inspection in a timely manner, and always willing to share his experience, insights and advice ensuring the work is done correctly to meet code and MDE standard. I recommend Green Environmental and its very trustworthy President, Mr Brian Barkley, to anyone who is looking for an excellent lead inspection professional."
Recommended by100%of homeowners
Avatar for Flood Crew LLC
Flood Crew LLC
4.6(
40
)

Serving California, MD and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"I had a pipe burst in the basement of our rental property, Flood Crew was referred by our realtor. They arrived quickly after the pipe was fixed by our plumber, demoed, and dried out the areas, even handled packing out our furniture and placing carefully in a pod storage while the work was being done. They did mold testing and made sure everything was safe, the best part was that they dealt with the insurance and we didn’t have to do anything."
After carpets were cleaned.
Before and after of Medallion
After color sealed
Apartment carpet cleaning
Drying bathroom wood subfloor from kitchen using indirect control heat, controlled by thermostat we set in place

+57

Recommended by88%of homeowners
Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)

Serving California, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"The technicians showed up on time, were thorough and professional, and did a fantastic job in cleaning up all of the air ducts in the household. In addition, they cleaned the heating/cooling unit itself, as well as the filters, to ensure that the entire system was covered.
"
Before & After Air Duct Cleaning
Recommended by49%of homeowners
District Home Inspectors, LLC.
New to Angi

Serving California, MD and surrounding areas

In business since 2017

Free estimates

Credit card accepted

Welcome to District Home Inspectors. We are the premier professional Inspection company in Maryland. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Whether your project involves minor evaluations or complete inspections, we are glad to be your number one choice. Please call us today to schedule your appointment!

Response time40 mins
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Radon Detection and Reduction questions, answered by experts

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

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.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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

The California, MD 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.