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5 Danger Levels of Indoor Air Quality

The EPA breaks down potential indoor air quality issues into 5 danger levels. National Radon Defense IAQ professionals are trained in helping our customers improve their overall indoor air quality, as well as, reducing radon levels to their lowest possible level.

our service area

We serve the following areas

Michigan
  • Au Train
  • Bark River
  • Champion
  • Channing
  • Chatham
  • Cooks
  • Cornell
  • Crystal Falls
  • Deerton
  • Eben Junction
  • Escanaba
  • Felch
  • Foster City
  • Gaastra
  • Garden
  • Germfask
  • Gladstone
  • Grand Marais
  • Gulliver
  • Gwinn
  • Hermansville
  • Iron Mountain
  • Iron River
  • Ishpeming
  • Little Lake
  • Manistique
  • Marquette
  • Michigamme
  • Munising
  • Negaunee
  • Norway
  • Perronville
  • Powers
  • Quinnesec
  • Rapid River
  • Republic
  • Rock
  • Rumely
  • Sagola
  • Seney
  • Shingleton
  • Skandia
  • Spalding
  • Trenary
  • Vulcan
  • Wells
  • Wetmore
  • Wilson
Wisconsin Our Locations:

Northland Basement Systems
111 Commercial Lane
Wakefield, MI 49968
1-906-553-4790
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