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Best radon detection and reduction specialists near Washougal, WA

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Top-Rated Radon detection and reduction specialists in Washougal - Updated Nov 2026

Really Fast Rapid Radon Remediation
4.7(
30
)
Radon Gas - Abatement

Serving Washougal, WA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"They were not satisfied until my radon levels were pretty much annihilated! Very clean install, came back to measure levels, were still a little higher than expected, so came and dug deeper and put in a different fan and that did the trick! Very reasonable pricing and great communication."
Response time9 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Alpha Environmental Services Inc
Alpha Environmental Services Inc
4.7(
134
)
Radon Gas - AbatementRadon Gas - Testing

Serving Washougal, WA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Professional, friendly and responsive. I hired Alpha to come do a mold inspection on a home I just purchased. They accommodated my schedule and Chris came early morning before work to do the inspection. He was very friendly, thorough, and went above and beyond to make sure he tested everything I was looking for. He eased my mind and he even gave me home advice outside of just the mold inspection. The inspection price was incredibly reasonable and the bid to do some work was as well. He could have tried to oversell me on things due to my lack of knowledge about mold but in the end my house was in good shape and he eased my worries and gave me peace of mind which was well worth the price! I would highly recommend Alpha Environmental!"
Heating Oil Tank
Radon Reduction System
Removal of Underground Tank
Response time1 day
Response rate100%
Recommended by85%of homeowners
Avatar for Propertyexam
Propertyexam
4.6(
18
)
Radon Gas - AbatementRadon Gas - Testing

Serving Washougal, WA and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"I am a first-time home buyer and I contacted Scott to perform the inspection on my new townhouse. The building had some known issues and I wanted to be sure that they had been resolved. Additionally, I wanted radon, mold and indoor air quality testing, to ensure that I wasn't moving into a "sick" building. Scott was able to accommodate my schedule on very short notice and he's really great to work with! He gave me all kinds of tips and helpful advice. Working with him was very educational and informative. I highly recommend Scott for all of your home inspection needs. And though some of the tests (such as radon, mold, etc) cost extra, they are well worth the price to ensure that you are investing in a safe and healthy home for you and your family."
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+4

Recommended by100%of homeowners
Accurate Home Inspection, LLC
4.9(
4
)
Radon Gas - Testing

Serving Washougal, WA and surrounding areas

In business since 2006

Free estimates

Credit card accepted

With over 11 years of experience serving the Vancouver area, Accurate Home Inspection, LLC, is your solution for all your home inspection needs. We take great pride in our extreme professionalism, timeliness, and superior customer service on every job. Call us today! \n \n

Response time6 hrs
Response rate88%
Recommended by100%of homeowners
Avatar for HomeCheck Inspection Services
HomeCheck Inspection Services
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Washougal, WA and surrounding areas

In business since 2003

HomeCheck's owner/operator Steve Blaha is a home inspector who provides high quality home inspections along with excellent customer service.\n\nSteve is a good communicator and leaves no room for guessing when it comes to evaluating a potential new home. Steve has a unique skill set with an extensive background in residential construction. If you are looking for a home inspector who is committed to 100% customer satisfaction, call HomeCheck Inspection Services.\n

Prepared to go the extra mile!
Go Timbers!
Additional Photos
Recommended by100%of homeowners
Avatar for Gorge Quality Home Inspection
Gorge Quality Home Inspection
5.0(
3
)
Radon Gas - Testing

Serving Washougal, WA and surrounding areas

In business since 2019

Gorge Quality Home Inspection gorgequaulityhomeinspection.com offers unbiased, dependable, and non-invasive home inspection services and radon testing to the Columbia River Gorge and the greater Portland and Vancouver metro areas. We strive to be an asset to every client who comes our way, adhering to InterNACHI’s excellent Standards of Practice so that the quality of our service is never in question.\nWe don’t settle for a run of the mill home inspection, and neither should you when you contract with us to perform a home inspection, you’ll enjoy flexible scheduling, top quality customer service, and the most accurate home inspection available.\nSafety should always be a priority, and we’ll work diligently to make sure that your home is safe and sound, meticulously assessing even the most minute details to check for dangerous defects.\nWe go the extra mile for our clients and do everything we can to take the stress out of your experience.\nGorge Quality Home Inspection is a veteran owned and operated business. Greg Felten takes great pride in putting out a consistently high-quality product, eliminating uncertainty and stress by providing a friendly and knowledgeable service that is centered around the success of every client. One of Greg’s primary motivators for doing home inspection work is being able to play an important role in taking care of the people in our local communities. This of course includes prospective newcomers to the area because buying a home is a difficult process, no matter who you are or where you come from.

Recommended by100%of homeowners
Avatar for Mold Docs
Mold Docs
5.0(
6
)
Radon Gas - Testing

Serving Washougal, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

We are experts in water damage restoration and mold remediation with over 7 years in the business. IF YOU HAVE A WATER EMERGENCY, please call or text us 503-300-6653. We are proficient in working with insurance to get you a successful claim. 24/7 Emergency Response. Water damage reconstruction experts.

Wet up to about 3 feet high
Two building on school campus
Main source area
Two building on school campus
Two building on school campus

+21

Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

The Washougal, WA 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.