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Avatar for Alpha Environmental Services Inc

Alpha Environmental Services Inc

4.72(
109
)
•Approved Pro

Alpha Environmental Services Inc

4.72(
109
)
•Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 years of experience

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025

Avatar for Cascade Radon Inc

Cascade Radon Inc

4.94(
157
)

Cascade Radon Inc

4.94(
157
)
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021

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

Avatar for Norsebuilt LLC

Norsebuilt LLC

4.87(
15
)

Norsebuilt LLC

4.87(
15
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Thurston Co. area general contractor specializing in insurance damage restoration, remodeling and custom home design and construction. Most phases of construction are completed by our experienced craftsmen to ensure top quality workmanship. Fixed price contracts are standard but we often do hourly contracts for repair work.

Thurston Co. area general contractor specializing in insurance damage restoration, remodeling and custom home design and construction. Most phases of construction are completed by our experienced craftsmen to ensure top quality workmanship. Fixed price contracts are standard but we often do hourly contracts for repair work.

Verified Reviews for Radon Detection And Reduction pros in Ethel, WA

*The Angi rating for Radon Detection And Reduction companies in Ethel, 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 Ethel, 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 December 29, 2025

Radon Detection and Reduction questions, answered by experts

Costs depend on property size, test types, and additional services like mold sampling.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

Services test for allergens, mold, VOCs, and carbon monoxide levels to ensure a healthy indoor environment.

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.

A DIY kit can lessen the sting that comes with paying for a professional assessment, but these comprehensive tests are true lifesavers. Inspectors are more likely to catch all of the pollutants and hazards in your air. Plus, you’ll still need a professional to verify and act on your DIY test results. 

Some kits don’t include tests for certain air pollutants or only detect their presence, but not their levels (i.e., mold spores). If you’re willing to shell out money for a DIY kit, it’s usually better to stretch your budget slightly higher for a more detailed assessment.

The Ethel, 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.

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