Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Port Townsend, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Port Townsend, WA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Port Townsend, WA

*The Angi rating for Radon Detection And Reduction companies in Port Townsend, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Port Townsend, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on March 08, 2026

Find Radon detection and reduction specialists in Port Townsend

Avatar for 5 Microns Inc.
5 Microns Inc.
4.9(
74
)
Radon Gas - Testing

Serving Port Townsend, WA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"I am very pleased with service from 5 Microns. They were quick to communicate, showed up on time, very professional and promptly shared the test results."
Vinyl sheeting asbestos test
Wall asbestos test
Asbestos air test
Mold and moisture testing
Mold air test

+32

Response time3 hrs
Response rate98%
Recommended by100%of homeowners
Request Quote
Palm Construction and Remodeling Inc.
4.2(
88
)
Radon Gas - AbatementRadon Gas - Testing

Serving Port Townsend, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

"Palm Construction recently replaced roof on my house and it was a great experience to work with Lee and his well organized team from Palm Construction. They did excellent job and my roof passed inspection with no issues. The quality of work and materials is excellent and my new roof looks fantastic. Also my whole house looks mush better now. Thanks!"
Response time2 days
Recommended by90%of homeowners
Request Quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
1.8(
4
)
Radon Gas - Abatement

Serving Port Townsend, WA and surrounding areas

In business since 1988

Free estimates

Credit card accepted

SWAT Environmental is the nation's largest radon abatement engineer. Our experienced staff has corrected radon problems for over 60,000 customers since 1988 with 100% success!

Recommended by50%of homeowners
Request Quote
Radon Detection and Reduction questions, answered by experts

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

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.

The Port Townsend, 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.

See all articles