About Us

At Northern Duct Seal, we’re committed to improving our customers’ lives by increasing the comfort and energy efficiency of their homes. We use safe Aeroseal sealants to rid their ductwork of gaps and leaks, improving the efficiency of their HVAC systems as a whole. As a result, our customers across Northeast Iowa feel more comfortable, breathe in less dust, and notice lower energy costs. When it comes to improving the quality of life indoors, we provide the most effective and affordable option around.


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Location & Hours

Oelwein, IA

(563) 580-4370


Open today

08:00 am – 05:00 pm

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