Air Duct Sealing in Bismarck, ND

Improve your home comfort, reduce energy bills, and breathe cleaner air with AeroSeal duct sealing technology.

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Bismarck - Mandan Area

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Northern Plains Plumbing team trucks

The Hidden Problem in Your Ductwork

Leaky ductwork is one of the biggest energy wasters in homes and buildings. Studies show that the average home loses up to 30% of its heated and cooled air through leaks, holes, and poor connections in the duct system. This means you are paying to heat and cool air that never reaches your living spaces.

Leaky ducts also pull in dust, allergens, and pollutants from attics, crawl spaces, and wall cavities, reducing your indoor air quality. Rooms that are too hot or too cold, high energy bills, and excessive dust are all signs of duct leakage.

The AeroSeal Solution

Northern Plains uses AeroSeal duct sealing technology — the most effective and least invasive duct sealing solution available. Unlike traditional methods that require accessing and taping each leak by hand, AeroSeal seals your ducts from the inside.

Benefits of Duct Sealing

Measurable improvements to your comfort, energy bills, and air quality.

Lower Energy Bills

Reduce energy waste by up to 30% by keeping conditioned air in the ducts and out of unconditioned spaces.

Even Temperatures

Eliminate hot and cold spots by ensuring conditioned air reaches every room as designed.

Cleaner Air

Stop dust, allergens, and pollutants from entering your duct system through leaks in unconditioned spaces.

Verified Results

Before-and-after testing proves exactly how much leakage was sealed, so you can see measurable improvement.

Who Benefits from Duct Sealing?

  • Homeowners with high energy bills or uneven temperatures between rooms
  • Homes with excessive dust despite regular cleaning
  • Older homes with aging ductwork hidden in walls and ceilings
  • New construction looking to maximize HVAC efficiency from day one
  • Commercial buildings seeking to reduce operating costs
  • Anyone concerned about indoor air quality and allergens

How It Works

  • All registers and grilles are temporarily sealed
  • A non-toxic sealant is injected into the duct system as a fine mist
  • Air pressure pushes the sealant particles to the leak points
  • The particles build up at each leak until it is completely sealed
  • The entire process is computer-monitored with real-time results

The process typically takes 4–8 hours and requires no demolition or access to hidden ductwork inside walls, floors, or ceilings.

Let’s Get the Job Done Right!

Whether it’s plumbing, HVAC, remodeling, or custom fabrication, we deliver quality work you can count on. Reach out today to get started.