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Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
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
"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."
Paula G on December 2020
"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."
Paula G on December 2020
Tri State Certified LLC
Tri State Certified LLC
Additional DBA - Tri State Certified Home Inspection Service.
Additional DBA - Tri State Certified Home Inspection Service.
SHERLOCK HOME INSPECTORS INC
SHERLOCK HOME INSPECTORS INC
Home and Commercial building inspections. Mold and moisture investigations. Indoor Environmental Consulting. Within 100 Miles of Sioux City, Also will go any where member willing to pay milage
Home and Commercial building inspections. Mold and moisture investigations. Indoor Environmental Consulting. Within 100 Miles of Sioux City, Also will go any where member willing to pay milage
Vista Inspection Partners
Vista Inspection Partners
A skilled inspector is a professional, providing top-quality home inspection services to the community. We've taken a stand for excellence. We are that professional. We carry the torch of excellence into American homes by being technically skilled in home inspection services.
A skilled inspector is a professional, providing top-quality home inspection services to the community. We've taken a stand for excellence. We are that professional. We carry the torch of excellence into American homes by being technically skilled in home inspection services.
Verified Reviews for Radon Detection And Reduction pros in Onawa, IA
*The Angi rating for Radon Detection And Reduction companies in Onawa, IA 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 Onawa, IA 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
The Onawa, IA 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.

Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
•Discover the average indoor air quality testing cost, what impacts pricing, and how to budget for healthier air in your home.
•Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.

How long does a radon mitigation system last? A properly installed and maintained system can last 20 years or more, but various issues can reduce the life span.

Radon can seep into your home through cracks and small openings. Here's how to get rid of radon and why you need to do it.

What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"






