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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.
Tri-State Home Inspections
Tri-State Home Inspections
We are a licensed home inspection company serving IA, MN and WI since 2008. Our inspections are a though investigation of the home from top to bottom including the electrical system, heating/cooling systems, gas detection and thermal imaging of the home. We will provide you with a detailed report usually the same day. We also provide mold, drug, environmental and radon testing at additional cost, discounted with a home inspection. I am a: • licensed home inspector • BPI energy auditor • Certified mold inspector • Licensed lead paint risk assessor • HUD inspector • Licensed electrician • Insured
We are a licensed home inspection company serving IA, MN and WI since 2008. Our inspections are a though investigation of the home from top to bottom including the electrical system, heating/cooling systems, gas detection and thermal imaging of the home. We will provide you with a detailed report usually the same day. We also provide mold, drug, environmental and radon testing at additional cost, discounted with a home inspection. I am a: • licensed home inspector • BPI energy auditor • Certified mold inspector • Licensed lead paint risk assessor • HUD inspector • Licensed electrician • Insured
"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

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 Postville, 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.

How long does a radon fan last? Depending on the quality of the fan, usage, and maintenance, a radon fan can last five to ten years.

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

The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"