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Find Radon gas abatement pros in Lutherville Timonium

Avatar for Target Radon

Target Radon

4.82(
157
)
Approved Pro

Target Radon

4.82(
157
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
26 years of experience

Target Radon is a MHIC licensed, NRPP certified radon mitigation company providing services in the Maryland area. We specialize in custom SUB-SLAB VENTILATION/ depressurization RADON MITIGATION SYSTEMS for residential properties. The work will follow the standards of the US Environmental Protection Agency (EPA) and the National Environmental Health Association (NEHA). We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.

"no"

Alfred H on December 2025

Target Radon is a MHIC licensed, NRPP certified radon mitigation company providing services in the Maryland area. We specialize in custom SUB-SLAB VENTILATION/ depressurization RADON MITIGATION SYSTEMS for residential properties. The work will follow the standards of the US Environmental Protection Agency (EPA) and the National Environmental Health Association (NEHA). We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.

"no"

Alfred H on December 2025


"I'm completely satisfied with the work that John's team did. They were extremely professional and knowledgeable. The workmanship is superb. Best of all, the system works as promised and reduced the radon concentration based on subsequent tests. I could not recommend them more highly."

Matt L on October 2025

Radon Abatement Services, LLC, is a radon removal contractor serving the greater Maryland, DC and Virginia region. We�re licensed and insured. Make sure your radon contractor is both licensed and insured!

"I'm completely satisfied with the work that John's team did. They were extremely professional and knowledgeable. The workmanship is superb. Best of all, the system works as promised and reduced the radon concentration based on subsequent tests. I could not recommend them more highly."

Matt L on October 2025


"Mitch was friendly as he was professional. The report was thorough and easy to understand, with excellent visuals. Could not ask for a better home inspection!"

Cory M on September 2024

Home inspections and radon testing

"Mitch was friendly as he was professional. The report was thorough and easy to understand, with excellent visuals. Could not ask for a better home inspection!"

Cory M on September 2024


"Bait and Switchers. DO NOT RELY ON AN ON AN QUOTE FOR JOB THEY HAVEN"T SEEN! IN PERSON. I gave three electricians very explicit information to bid a job. Offered New Dawn opportunity to come make in person quote but they said they didn't need to. Two of three were very close but I picked New Dawn based on these reviews. I paid a $500 deposit and waited several weeks for the service and paid for someone ($200) to be at my house to meet them this morning. Technicians showed up and said they didn't have what was required to do project and "project was out of scope of quote because it required conduit". They were told up front verbally and in text exchanges conduit was required. In fact the text said "Conduit Obviously!". Spoke to Kelly who was one of the owners who confirmed she researched and saw the text exchange and notes but said the person who gave the quote had made an incorrect assumption and that they would not honor the quote and they would have to give me a new quote. When I challenged that (nicely) she hung up on me. Typical Florida scammers."

Wesley W on April 2024

FOR FASTEST SERVICE, TEXT 941-527-8805. Offering superior electrical services including new installs and repair. Licensed and Insured Master Electrician.

"Bait and Switchers. DO NOT RELY ON AN ON AN QUOTE FOR JOB THEY HAVEN"T SEEN! IN PERSON. I gave three electricians very explicit information to bid a job. Offered New Dawn opportunity to come make in person quote but they said they didn't need to. Two of three were very close but I picked New Dawn based on these reviews. I paid a $500 deposit and waited several weeks for the service and paid for someone ($200) to be at my house to meet them this morning. Technicians showed up and said they didn't have what was required to do project and "project was out of scope of quote because it required conduit". They were told up front verbally and in text exchanges conduit was required. In fact the text said "Conduit Obviously!". Spoke to Kelly who was one of the owners who confirmed she researched and saw the text exchange and notes but said the person who gave the quote had made an incorrect assumption and that they would not honor the quote and they would have to give me a new quote. When I challenged that (nicely) she hung up on me. Typical Florida scammers."

Wesley W on April 2024


Avatar for Pro Spex Home Inspection Services

Pro Spex Home Inspection Services

4.89(
333
)

Pro Spex Home Inspection Services

4.89(
333
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Serving the DMV since 2003. Locally owned, not a franchise, Super Service Award every year since 2012. We inspect any home of any size in any condition, for buyers, sellers, investors and homeowners. All Full Service Home inspections include the best protection in the industry: FREE 30 DAY HOME WARRANTY, 90 DAY BUY BACK GUARANTEE, INSPECTOR PERFORMANCE GUARANTEE. Services include (Buyers and Sellers: Full Service Home Inspections Termite Inspections Mold inspections Radon testing Underground Sewer line inspections New construction inspections (foundation, framing, Pre-drywall) Builder Warranty Inspection Rental Property Inspections Contractor Inspections 203K consulting Limited inspections (any system (Roof, Electrical, HVAC etc. or component) Deck safety inspections Well Inspections We utilize infrared cameras, moisture detection equipment and drones to benefit our clients. If you plan to invest in it, we can inspect it. Contact us today and schedule online at www.pro-spex.com or over the phone by calling 844-675-8851.

"Robert was very helpful, knowledgeable, and courteous. I sometimes felt as if he were inspecting his own home, that's how much care he demonstrated."

Gail T on May 2024

Serving the DMV since 2003. Locally owned, not a franchise, Super Service Award every year since 2012. We inspect any home of any size in any condition, for buyers, sellers, investors and homeowners. All Full Service Home inspections include the best protection in the industry: FREE 30 DAY HOME WARRANTY, 90 DAY BUY BACK GUARANTEE, INSPECTOR PERFORMANCE GUARANTEE. Services include (Buyers and Sellers: Full Service Home Inspections Termite Inspections Mold inspections Radon testing Underground Sewer line inspections New construction inspections (foundation, framing, Pre-drywall) Builder Warranty Inspection Rental Property Inspections Contractor Inspections 203K consulting Limited inspections (any system (Roof, Electrical, HVAC etc. or component) Deck safety inspections Well Inspections We utilize infrared cameras, moisture detection equipment and drones to benefit our clients. If you plan to invest in it, we can inspect it. Contact us today and schedule online at www.pro-spex.com or over the phone by calling 844-675-8851.

"Robert was very helpful, knowledgeable, and courteous. I sometimes felt as if he were inspecting his own home, that's how much care he demonstrated."

Gail T on May 2024


Avatar for Highland Home Inspections LLC

Highland Home Inspections LLC

4.92(
106
)

Highland Home Inspections LLC

4.92(
106
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Highland Home Inspections lives by its motto — careful, thorough, and complete — and has completed more than 25,000 home inspections in Maryland. Our inspections include not only a well-organized and detailed report within 24 hours, but a verbal explanation of observations and recommendations on the maintenance of your home’s systems while the inspection is taking place. Our experienced inspectors have excellent communication skills and are committed to taking the time necessary to explain issues to you as the inspection proceeds. There is no need for you to take notes; everything our inspectors explain will be included in the report.

"I walked through the inspection with Kevin and he did a fine job explaining all his findings."

Steven S on April 2019

Highland Home Inspections lives by its motto — careful, thorough, and complete — and has completed more than 25,000 home inspections in Maryland. Our inspections include not only a well-organized and detailed report within 24 hours, but a verbal explanation of observations and recommendations on the maintenance of your home’s systems while the inspection is taking place. Our experienced inspectors have excellent communication skills and are committed to taking the time necessary to explain issues to you as the inspection proceeds. There is no need for you to take notes; everything our inspectors explain will be included in the report.

"I walked through the inspection with Kevin and he did a fine job explaining all his findings."

Steven S on April 2019


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


"bottom line excellent work, good price, I highly recommend GMD Consttruction. quick response to getting a bid. Installation was done in 2 hours; excellent work; 50 yr caulk to seal the tube opening in the basement floor; electric hard wired into a circuit protected by a generator,; exterior power cutoff, fan and pipe to the roof line installed in a professional manner with secure standoffs for the pipe."

Mark T on December 2020

National Environmental Health Association #100026. National Radon Safety Board 248G. EPA RCCP 10032. DBA: Radon Mitigation Services.

"bottom line excellent work, good price, I highly recommend GMD Consttruction. quick response to getting a bid. Installation was done in 2 hours; excellent work; 50 yr caulk to seal the tube opening in the basement floor; electric hard wired into a circuit protected by a generator,; exterior power cutoff, fan and pipe to the roof line installed in a professional manner with secure standoffs for the pipe."

Mark T on December 2020


Avatar for The Home Detective

The Home Detective

4.91(
47
)

The Home Detective

4.91(
47
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Home Inspections for Buyers, Sellers, Investors and Owners. Mold evaluation and sampling. Radon testing. Damp basement evaluation. Deck inspections. Consulting. We do NOT provide any repair service/remediation service to maintain a neutral, 3rd party position in the evaluation process. Serving Maryland, DC and Virginia since 1996. Licensed in MD/VA/DE ASHI Certified Inspector (American Society of Home Inspectors) MAHI (Maryland Association of Home Inspectors) NRSB (National Radon Safety Board) Certified Radon Specialist NADRA (North American Deck and Railing Association)

"Robert is FANTASTIC!!! The regulations that a typical home inspector must work by are not as thorough as most home buyers would prefer...luckily Robert is not quite typical. He is thorough to a T exploring the home from basement to chimney top. I would hire him for every home I look to buy in my future. Very confident and happy with his work."

Samuel R on July 2019

Home Inspections for Buyers, Sellers, Investors and Owners. Mold evaluation and sampling. Radon testing. Damp basement evaluation. Deck inspections. Consulting. We do NOT provide any repair service/remediation service to maintain a neutral, 3rd party position in the evaluation process. Serving Maryland, DC and Virginia since 1996. Licensed in MD/VA/DE ASHI Certified Inspector (American Society of Home Inspectors) MAHI (Maryland Association of Home Inspectors) NRSB (National Radon Safety Board) Certified Radon Specialist NADRA (North American Deck and Railing Association)

"Robert is FANTASTIC!!! The regulations that a typical home inspector must work by are not as thorough as most home buyers would prefer...luckily Robert is not quite typical. He is thorough to a T exploring the home from basement to chimney top. I would hire him for every home I look to buy in my future. Very confident and happy with his work."

Samuel R on July 2019


GEORGE N SIEGLEIN ROOFING CO

4.91(
64
)

GEORGE N SIEGLEIN ROOFING CO

4.91(
64
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

OWNER-OPERATED. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGE FOR AFTER HOUR SERVICES MAY APPLY. LICENSE # 32725.

"Pleasant man to work with and they did two skylights."

DONNA T on January 2020

OWNER-OPERATED. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGE FOR AFTER HOUR SERVICES MAY APPLY. LICENSE # 32725.

"Pleasant man to work with and they did two skylights."

DONNA T on January 2020

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FAQs for radon gas abatement projects in Lutherville Timonium, MD

The only way to know whether your home or water supply contains radon is to schedule a professional test. A qualified radon inspector will collect samples, deliver lab-verified results, and explain the findings for $150 to $800. Once you know your exact levels, you and your radon mitigation pro can choose the right system and tackle the problem before it affects your family’s health.

Both roles tackle radon, but they focus on different steps. Inspectors test your home, interpret the results, and determine whether levels exceed EPA guidelines. Mitigation pros design and install the system that lowers those levels. Some companies do both, but the skills and equipment differ, so always verify that the person you hire is properly certified for the specific service you need.

Installing a mitigation unit fixes radon problems by reducing indoor gas levels to established safe standards. A system designed and installed by a mitigation expert, tailored to your home's specific layout and foundation, guarantees effective radon reduction. This expert installation ensures consistent performance over time while safeguarding your indoor air quality.

Open windows and doors do not reduce radon levels because they trigger a pressure imbalance that draws radon-laden air into your home. This practice fails to control radon concentration and can even worsen the issue. An active suction mitigation system provides a proven, safe, and effective solution to reliably reduce radon levels.

Radon mitigation systems generally last between 10 and 30 years, depending on system type and maintenance. Passive systems endure the longest because they have no moving parts, whereas active systems, which use a fan, require fan replacement every 5 to 10 years. System components, such as PVC pipes, seals, and fittings, can remain effective for decades when paired with periodic inspections and proper maintenance.

Radon mitigation systems consume between 300 and 3,000 kWh of electricity per year, depending on fan size and system design. On average, an active radon fan draws 100 to 300 watts continuously, which translates to roughly 876 kWh annually, and adds $30 to $300 to your energy bill each year. Choosing a high-efficiency fan and ensuring tight sealing around pipes helps minimize these ongoing costs.

The Lutherville Timonium, MD homeowners’ guide to radon gas abatements

From average costs to expert advice, get all the answers you need to get your job done.