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Find Radon detection and reduction specialists in Marshalltown

Iowa Radon Defense
Iowa Radon Defense
Iowa Radon Defense is your number one choice for all your testing and abatement needs. Our commitment to quality is second to none, and we guarantee your complete satisfaction. We enjoy creating long term relationships with each of our clients, and we look forward to working with you!
"Richard Songer was the tech who did the work. He was extremely fast worker, polite and took the time to answer any questions I had. Before he started the work my readings in the basement where in the low 20s. 24 hrs after he finished the work my readings where under 4."
Richard T on January 2025
Iowa Radon Defense is your number one choice for all your testing and abatement needs. Our commitment to quality is second to none, and we guarantee your complete satisfaction. We enjoy creating long term relationships with each of our clients, and we look forward to working with you!
"Richard Songer was the tech who did the work. He was extremely fast worker, polite and took the time to answer any questions I had. Before he started the work my readings in the basement where in the low 20s. 24 hrs after he finished the work my readings where under 4."
Richard T on January 2025

Milledge Construction
Milledge Construction
We specialize in Radon testing and mitigation services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"They were easy to work with and worked efficiently. Very straight forward and zero hassle!"
Cole C on April 2025
We specialize in Radon testing and mitigation services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!
"They were easy to work with and worked efficiently. Very straight forward and zero hassle!"
Cole C on April 2025

Home Sweet Home Inspections, LLC
Home Sweet Home Inspections, LLC
Home Sweet Home Inspections, LLC, is a veteran-owned and operated company in Des Moines that conducts residential home inspections and radon testing for most of Iowa. Its services include inspections for real estate transactions (buying/selling), and new construction inspections for single and multi-family homes. Besides providing a detailed walk-through while showing the findings (optional), an inspection report that outlines the findings is emailed within 24 hours. Its founder, Luis Romero, is a US Army veteran who is bilingual in English and Spanish. He is a Certified Home Inspector and Radon Measurement Specilaist and has experience in the construction and architectural fields.
"It was very good. He was very knowledgeable to any questions we had and he explained everything very well. I would recommend him to others."
Jeff B on September 2021
Home Sweet Home Inspections, LLC, is a veteran-owned and operated company in Des Moines that conducts residential home inspections and radon testing for most of Iowa. Its services include inspections for real estate transactions (buying/selling), and new construction inspections for single and multi-family homes. Besides providing a detailed walk-through while showing the findings (optional), an inspection report that outlines the findings is emailed within 24 hours. Its founder, Luis Romero, is a US Army veteran who is bilingual in English and Spanish. He is a Certified Home Inspector and Radon Measurement Specilaist and has experience in the construction and architectural fields.
"It was very good. He was very knowledgeable to any questions we had and he explained everything very well. I would recommend him to others."
Jeff B on September 2021
Northern Duct Seal
Northern Duct Seal
Northern Duct Seal seals duct work from the inside by use of computerized tools and equipment. The process takes one day and our technicians will provide pre-seal and post-seal duct leakage reports on the spot. The basic steps to do a duct seal are: 1) Pre-seal Test is done to measure duct leakage, 2) Registers, returns, and air handler coil are blocked off with foam plugs, 3) A UL-tested and approved aerosol is injected into the pressurized duct system, 4) A Post-Seal Test is performed to measure improvements and 5) A complete Report and Certificate are printed to provide the customer with a record of improvement. Duct sealing provides a solution to high energy bills, air flow/air balance issues, uneven temperatures, hot and cold rooms, excessive humidity, musty odors and fume smells from stored paints, solvents, pesticides, and radon gases. Northern Duct Seal will reduce duct leakage by up to 90%, saving customers an average of $600 - $850 a year, with a 2-3 year return investment, depending on variables such as weather, system usage, energy prices, and home design. Northern Duct Seal offers a 10- year warranty on the seals created by our technicians. The sealant itself has been UL tested and approved and is considered non toxic by OSHA. For a demonstration video of the duct sealing process please see the 'Ask This Old House' Video located under the Media tab on this page.
Northern Duct Seal seals duct work from the inside by use of computerized tools and equipment. The process takes one day and our technicians will provide pre-seal and post-seal duct leakage reports on the spot. The basic steps to do a duct seal are: 1) Pre-seal Test is done to measure duct leakage, 2) Registers, returns, and air handler coil are blocked off with foam plugs, 3) A UL-tested and approved aerosol is injected into the pressurized duct system, 4) A Post-Seal Test is performed to measure improvements and 5) A complete Report and Certificate are printed to provide the customer with a record of improvement. Duct sealing provides a solution to high energy bills, air flow/air balance issues, uneven temperatures, hot and cold rooms, excessive humidity, musty odors and fume smells from stored paints, solvents, pesticides, and radon gases. Northern Duct Seal will reduce duct leakage by up to 90%, saving customers an average of $600 - $850 a year, with a 2-3 year return investment, depending on variables such as weather, system usage, energy prices, and home design. Northern Duct Seal offers a 10- year warranty on the seals created by our technicians. The sealant itself has been UL tested and approved and is considered non toxic by OSHA. For a demonstration video of the duct sealing process please see the 'Ask This Old House' Video located under the Media tab on this page.
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.

AmeriServ Radon Mitigation
AmeriServ Radon Mitigation
AmeriServ Radon Mitigation of Iowa is an expert in radon detection, testing, and mitigation for your Iowa home, business, or school. AmeriServ Radon Mitigation service includes a 200% guarantee on all work performed and a 10-year warranty on radon mitigation systems. Combining over 75 years of construction experience, our fully insured and background checked specialists are committed to making sure each system is designed to fit your needs.. We are your leading radon testing and radon mitigation service provider.
AmeriServ Radon Mitigation of Iowa is an expert in radon detection, testing, and mitigation for your Iowa home, business, or school. AmeriServ Radon Mitigation service includes a 200% guarantee on all work performed and a 10-year warranty on radon mitigation systems. Combining over 75 years of construction experience, our fully insured and background checked specialists are committed to making sure each system is designed to fit your needs.. We are your leading radon testing and radon mitigation service provider.
"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
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

Professional House Doctors Inc
Professional House Doctors Inc
Iowa's Radon Experts. Professional House Doctors, Inc is the oldest and most experienced radon company in Iowa. (And in the United States!) We provide the longest warranty, the best guarantee and the best price in the industry. Thanks to all our clients for making us number 1 in the State and allowing us to earn a living doing what we love. "Saving Lives One House At A Time." Services provided include: Radon mitigation and design 100% success rate with 100% customer satisfaction - Guaranteed! Testing available for radon in air, water, soil and building materials Professional House Doctors, Inc. provides the longest warranty and the best guarantee in the radon industry. Certified radon trainers and consultants to the USEPA. We design and install the most effective and attractive radon removal systems in the United States. No one knows radon better than Professional House Doctors, Inc. Call Professional House Doctors, Inc. today for free information and free estimates. Also available - $10 Test Kits and unlike the ones available at stores, ours include all lab fees, postage, and personal report. No Hidden fees or additional charges! "Saving Lives...One House At A Time."
"Went smoothly."
Karen C on August 2018
Iowa's Radon Experts. Professional House Doctors, Inc is the oldest and most experienced radon company in Iowa. (And in the United States!) We provide the longest warranty, the best guarantee and the best price in the industry. Thanks to all our clients for making us number 1 in the State and allowing us to earn a living doing what we love. "Saving Lives One House At A Time." Services provided include: Radon mitigation and design 100% success rate with 100% customer satisfaction - Guaranteed! Testing available for radon in air, water, soil and building materials Professional House Doctors, Inc. provides the longest warranty and the best guarantee in the radon industry. Certified radon trainers and consultants to the USEPA. We design and install the most effective and attractive radon removal systems in the United States. No one knows radon better than Professional House Doctors, Inc. Call Professional House Doctors, Inc. today for free information and free estimates. Also available - $10 Test Kits and unlike the ones available at stores, ours include all lab fees, postage, and personal report. No Hidden fees or additional charges! "Saving Lives...One House At A Time."
"Went smoothly."
Karen C on August 2018

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
The Marshalltown, 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.
•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.

Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
•Find out the average cost of radon fan replacement, key price factors, and ways to save. Get expert tips to budget for your radon mitigation system.

What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.

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.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"