Portland Radon Mitigation Experts

in Portland, OR

Radon Mitigation Experts are
in Portland

Radon Mitigation Experts in Portland
are top rated

Rated by
Marianne K.
"Cascade put in a radon remediation system into my basement. This company seems to really know their business and is priced very fair. CJ did the work and was professional, polite," and efficient. I knew that this remediation system relies on creating a vacuum under the foundation to draw the radon out, so I made sure that CJ knew there was a cut out of about 1.5x1.5ft in the foundation where the basement bath tub pea trap was. The wall next to the tub is presently open, giving access to the foundation cut out. CJ took care of this easily with some hardening foam that will allow for that needed vacuum, but that can be removed if there is ever a plumbing issue. He went the extra mile laying some metal mesh down before adding that foam, since I had a concern about little critters some day tunneling up through that foundation break. I was grateful for this. I would highly recommend this company for radon remediation.
Rated by
"Never in my life have I experienced professionalism to this degree of perfection. From the first meeting to the final installation, my interaction with every member of the
" team was A+. I am just simply amazed at how happy everyone is and how eager they are to put forth such a great effort to comfort me as a homeowner facing high radon and the impact a new system would have on the house. It wasn't easy to come up with a solution to install piping on the exterior of the house that would be the least obvious from the street, but they took the time to figure it out with me until we found the best location. And when it came time to install the piping on the inside, they went out of their way to find the least obvious place drilling a perfect hole into the travertine tile, basically making it disappear. Amazing. The quality of the products they chose to work with are just as impressive. I asked for no PVC, just assuming they would use it, but they were already one step ahead of me, opting for a higher quality, more eco friendly material. These guys are problem solvers, engineers, patient, kind, friendly, professional, proud, and a standard of class we should all aspire to be. Simply the best. Thank you!
Rated by
was excellent to work with, especially because the job they did on my house had a couple of surprises. When they came to bid, they were great about explaining" what the install would look like on the inside of the basement and the outside of the house, and they worked with me to cleverly figure out a way to hide the fan under my back porch. This reduced both what could be seen and heard after the install was complete. They also routed the exterior vent pipe along the side of the house in a way that it would be
from view from most
. The initial install went very smoothly, but when they came back a couple days later to check the radon levels, they were still too high. So they had to add a second suction point through the basement floor next to the plumbing stack and connect the exhaust to the initial suction pipe. This did the trick, and they did not charge anything extra for it. Very soon afterwards, I realized the fan was not running all the time like it was supposed to, so they replaced it quickly. Everything has been running well since then, and I'm very happy with their work.

Portland Radon Testing Articles

Radon Testing reviews in Portland


Pretty smooth job. There was one extra day needed for install, as the worker was called away for a family emergency. Someone else came later in the day and picked up the ladder and equipment. Then the original installer returned and finished the next day. He explained his pipe routing in the crawl space and showed me how to check the system. At completion he found a small air leak at the base of the pipe and he closed the gap with extra concrete. Electrician was prompt and informative and identified a separate plumbing issue needing attention. I was satisfied that they were thorough and professional.
- Roger L.

arrived at the appointed time on the day scheduled
completed the job in the alloted time
cleaned the work area when they were donef
followed up on the testing during the next few days

- clifford W.

Excellent service provider. Always showed up on time, responsive to phone calls, worked with us to keep the system out of the finished area in the basement. After initial install the radon levels were still too high, the installer made a return trip to clear away some soil which brought our radon levels to around about 1.1. Fan is nice and quiet without needing sound-proofing.

- Brian P.

It went very well from the initial contact with the company, the rep that gave us an estimate, and the workers that installed the system, as well as the billing process. They called before they came at 9am and were punctual. The work was done by mid-afternoon and the installer left the place clean and in order. He also left a radon test to measure the radon levels and came back a couple days later for the reading and it was well below the level we needed it to be. The process went smoothly and everyone of their team were friendly, courteous, and professional.
- Jonathan G.

They put it in where I asked and in a very professional way. The installer did a fantastic job. The only issue I had was they cut the screen for the crawl space under my house for the temporary system. Once the job was done I had to ask them to fix it. Once they did come to fix it they just put a screen over the old one with silicon and added a few screws to tie them together. I was not super happy with that. But the actual system they installed is great and works very well. I verified it with a 3rd party test. My wife said the gentleman who did the instal was very polite and great with my kids.
- Joel M.

I obtained three bids for Radon mitigation. While all three arrived on time and were quite knowledgable,
Portland Radon Mitigation Experts Provider Name Locked
provided the best solution for my needs with the most aesthetically pleasing design. Two of the companies guaranteed results (
Portland Radon Mitigation Experts Provider Name Locked
was one). The best design plan and the lowest cost made the decision easy. The installers arrived on time and performed their work in a professional manner. I am very pleased with the results.
- Patti K.

We had a 2-day radon test when we first bought our home in Feb 2013. It came back at 4.2, so we decided to retest later on to see if occupying the house (going in and out) made a difference. We called Cascade to retest in October and it came back at 5.9, so we figured we'd better mitigate. Since we were have some electrical work done in our basement, we asked Cascade if our electrician could do the electrical portion of the work, thus saving us some money. They were very accommodating and that worked out fine. Their work was very professional and of excellent quality. When they retested, the level had gone down to 2.0. Cost of the initial test was $160. Cost for the install was initially $1650 but reduced to $1415 because we handled the electrical separately plus we had a $100 Angie's List coupon. Everyone was pleasant and professional from office staff to testers to installers.
- Rhonda R.
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All Radon Mitigation Experts in Portland, OR

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

3R's Construction

576 Patterson St NW
Salem, OR

AAA Heating & Cooling Inc

5017 NE Grand Ave
Portland, OR

Active Mold Control

15450 SW Boones Ferry Rd
Lake Oswego, OR

Alpha Environmental Services Inc

11080 SW Allen Blvd., Suite 100
Beaverton, OR

AmeriSpec Home Inspection Service

4713 NE 39th St
Vancouver, WA


8305 SE Monterey Ave.
Happy Valley, OR

Aqua Star Plumbing

13504 NE 84th St., Ste. 103-282
Vancouver, WA

Associated Inspection Firm Inc

PO Box 823052
Vancouver, WA

Associated Master Inspectors LLC

PO Box 230966
Portland, OR

C J Hansen Co Inc

3552 Silverton Road NE
Salem, OR

Cascade Radon Inc

2761 NE Halsey St
Portland, OR


615 SE Chkalov Drive Suite #12
Vancouver, WA

Cuff Inspection Services, LLC

17297 SW Greengate Dr
Sherwood, OR

Diamond Crest Construction Inc.

P.O. Box 3042
Gresham, OR

ECC Remodeling & Construction LLC

10824 SE Oak St
Portland, OR


7302 N Richmond Ave
Portland, OR

Electech Lighting & Electric Inc

465 NE 181St
Portland, OR

Environmental Works LLC

2634 SE Steele St
Portland, OR

Ethereal Elements

16454 SW Cornelian Way
Beaverton, OR

F&C Inc.

2235 Yew Street
Forest Grove, OR

Faison Energy Solutions LLC

1827 NE 44th Ave
Portland, OR

Good Energy Retrofit

1132 SW 57th Ave
Portland, OR

Good Neighbor Handyman and Cleaning Services, LLC

11918 SE Division St Ste 443
Portland, OR


1017 SE 34TH AVE
Portland, OR


8630 SW Scholls Ferry Rd
Beaverton, OR

Insight Property Inspection LLC

21419 Ne Interlachen Ln.
Fairview, OR

Interstate Roofing

15065 SW 74th Ave
Portland, OR

Jones Stohosky Environmental Laboratory, Inc

3315 SE Harrison Street
Milwaukie, OR

Keller Williams Realty

9755 SW Barnes Rd
Portland, OR


12000 SW 66TH AVE
Portland, OR


18006 Gimley Ct.
Lake Oswego, OR

Neil Kelly Design Build Remodeling

804 N Alberta St
Portland, OR

Oregon Home Check

Portland, OR


Lake Oswego, OR


Portland, OR

Pillar To Post of SW Washington

7644 NE Hazel Dell Ave
Vancouver, WA


PO BOX 11009
Portland, OR

Rugs On Broadway

13070 Boones Ferry Rd
Lake Oswego, OR


3540 SE 28TH AVE
Portland, OR


Portland, OR

The Pull Out Shelf Co

665 Nw Norwood Street
Camas, WA

Top Notch Home Insepection

16415 Wayne Dr.
Oregon City, OR

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