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Find Radon gas abatement pros in Philadelphia

Avatar for Radon-Rid LLC
Radon-Rid LLC
5.0(
212
)

Serving Philadelphia, PA and surrounding areas

In business since 2004

Free estimates

Warranties offered

"Radon level was 11.5 before remediation and .24 after, so the result could not have been better. The installer, Dave, was first class from start to finish and owner Marc graciously adjusted his schedule to fit me in sooner as I requested. My only complaint was the price, and only because the home inspector who tested the radon levels told me the cost would be $800 to $1,500. My realtor said about $1,000."
Recommended by99%of homeowners
Avatar for Anvil Radon Services
Anvil Radon Services
5.0(
15
)

Serving Philadelphia, PA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Incredibly well! The people from Anvil were kind, courtesy, and professional from the moment I called until they left my home. Highly recommend using them if you are having any concerns at all around Radon. Tom was especially helpful and knowledgeable."
Recommended by100%of homeowners
Avatar for Landmark Inspections LLC
Landmark Inspections LLC
5.0(
97
)

Serving Philadelphia, PA and surrounding areas

In business since 2007

Free estimates

Warranties offered

"Scott performed an entire home inspection and radon test in addition to contracting a termite specialist to assist in the inspection. The experience was very professional and informative for wife and I as we are purchasing a home for the first time. He provided a package of information that will be useful to us throughout this process, which was very thouightful. I would highly recommend the company to anyone in the market. It doesn't get any better."
Recommended by100%of homeowners
Avatar for Real Estate Inspections
Real Estate Inspections
4.9(
49
)

Serving Philadelphia, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Very professional and courteous. Received discounts for both Level 1 and Level 2 inspections. Report was very thorough. Even offered to review repair estimates to determine which is reasonable."
Recommended by97%of homeowners
Avatar for Foundation Home Inspections LLC
Foundation Home Inspections LLC
5.0(
13
)

Serving Philadelphia, PA and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Bill was outstanding. When we arrived at the home he had started the inspection on the outside of the home. He conducted a through and fair inspection. When he was done he walked us through the home and showed us the areas that caused concern. The realtors were thrilled with his inspection. My realtor told me that she has dealt with inspectors that will over react to areas that are concerning and scare potential buyers. This was not the case with Bill. Bill provided a comprehensive report with in one business day. My attorney commented that he was very impressed with the inspection."
Recommended by100%of homeowners
STRONG FOUNDATIONS HOME INSPECTIONS
5.0(
48
)

Serving Philadelphia, PA and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Home Inspection and Radon Test.  Nick is A#1+++. From the call to set up a test dated, Nick returned  my call promptly and explained what would be done and all costs. No hiden cost or problems. Arrived right on the appointment inspection time and went right to work. Out side home inspection, roof top inspection of second and first floors roofs. Moved inside and pointed out problem areas as he went along.  Basement and first floor radon test also. Inspection on a Friday, emailed detailed report on Saturday morning with many pictures and suggestions of what to do to correct problems. I would most definitely use and recommened Nick again and to anyone else."
Recommended by100%of homeowners
Reliable Home Inspection Service
5.0(
38
)

Serving Philadelphia, PA and surrounding areas

In business since 1993

Free estimates

Warranties offered

"Because we anticipate moving to a CCRC soon, we wanted to get our house "in shape" so it could be easily sold; no glitches, like radon above 4.0 pCi/L, which we've known it was for many years. Recent long-term tests of cancer rates among people in homes with radon above 4.0 vs. those below 4.0 produced some surprising results: People in homes with LOWER than 4.0 had HIGHER incidents of lung cancer than those with radon ABOVE 4.0. But, of course, the EPA is intractable on the subject, so ignores such studies, forcing homeowners with >4.0 pCi/L to spend a fair amount of money to reduce it below the arbitrary 4.0 before they sell their house. We contacted two companies. The first offered by far the lowest price, but did so without anyone from the company coming to the house to see what would be involved. We have a poured-concrete basement with a French drain all the way around it. A French drain is great if you have water seeping through the walls because it allows the water to drain back into the ground. But it also provides a path for radon to enter the house, so it has to be closed. In addition, you would not want to leave the drain open because the remediation is done by an exhaust fan that pulls the radon from under the basement floor and discharges it above the roof. Leaving a French drain open could cause the exhaust fan to create a negative pressure in the house, thereby pulling cold air in the winter and hot air in the summer into the house. So it had to be closed. I asked the first company if their quote included sealing the French drain. Their response was that they could seal all cracks in the floor, but the responder didn't know about the drain. Two emails to them about that question were ignored. The second company was Reliable. Although their bid was higher, the company owner came to the house (on time!), inspected the basement thoroughly and explained in detail what they would do, which included sealing the French drain. They used our sump (we have no sump pump) as the radon extraction point. If you don't have a sump, they have to cut a hole in the floor. In order to seal the French drain, they give you the option of (a) moving everything away from the walls or (b) adding $100 to the estimate and they will move the stuff for you. We moved it ourselves. The job was finished in 4 hours and was beautifully done. The only "con": The cover that seals the sump was left with lots of PVC glue spilled on it and on the floor around it. Not a big deal, but it will require us to clean it up with solvents and paint the cover so it looks neat. We highly recommend this company. In our opinion, they're a perfect example of "you get what you pay for"."
Recommended by100%of homeowners
Avatar for SWAT Environmental of Pennsylvania
SWAT Environmental of Pennsylvania
4.4(
41
)

Serving Philadelphia, PA and surrounding areas

In business since 1988

Free estimates

Warranties offered

"Prompt response and scheduling of appt. radon remediation system installed as per agreed apron contract for service. System has all but totally eliminated Radon levels from our home. Very pleased with service performed"
Recommended by85%of homeowners
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FAQs for radon gas abatement projects in Philadelphia, PA

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 Philadelphia, PA homeowners’ guide to radon gas abatements

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