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Verified Reviews for Radon Detection And Reduction pros in Colstrip, MT

*The Angi rating for Radon Detection And Reduction companies in Colstrip, MT 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 Colstrip, MT 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 January 17, 2026

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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 Groundworks

Groundworks

No reviews yet

Groundworks

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24 years of experience

Groundworks, previously Yellowstone Structural Systems, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Montana and Wyoming. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or crawlspace.

Groundworks, previously Yellowstone Structural Systems, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Montana and Wyoming. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or crawlspace.

Good Environmental Services, Inc

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Good Environmental Services, Inc

No reviews yet
21 years of experience

GES is a Full Service Environmental company who strives to offer the latest and most innovative solutions for all our clients environmental concerns. GES is also the exclusive distributor of Microbe Guard antimicrobial coating which offers the only 25 year warranty against mold on a newly constructed home (or 10 year on a post remediation project). GES treats each clients home with the utmost care and respect, be it the contractor or the homeowner we guarantee our first class A-team service will impress. We specialize in: *Mold Remediation *Water & Fire Damage Restoration *Radon Mitigation *Indoor/outdoor HAZMAT cleanup *METH LAB cleanup *Asbestos Abatement *Dry Ice & Sand Blasting *Microbe Guard *Insulation

GES is a Full Service Environmental company who strives to offer the latest and most innovative solutions for all our clients environmental concerns. GES is also the exclusive distributor of Microbe Guard antimicrobial coating which offers the only 25 year warranty against mold on a newly constructed home (or 10 year on a post remediation project). GES treats each clients home with the utmost care and respect, be it the contractor or the homeowner we guarantee our first class A-team service will impress. We specialize in: *Mold Remediation *Water & Fire Damage Restoration *Radon Mitigation *Indoor/outdoor HAZMAT cleanup *METH LAB cleanup *Asbestos Abatement *Dry Ice & Sand Blasting *Microbe Guard *Insulation

Radon Detection and Reduction questions, answered by experts

Yes, DIY kits are available, but professional testing provides more accurate results and comprehensive reports.

Professional radon detection involves placing test kits in the lowest lived-in level of the house for a period, usually 48 hours to several months, followed by lab analysis of collected data.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

Short-term tests take 2-7 days, while long-term monitoring may require up to 90 days for accurate results.

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 Colstrip, MT homeowners’ guide to radon detection and reduction services

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