Custom Ductwork
Custom Ductwork Design & Installation in Great Falls, MT | HVAC Ducts
Precision Ductwork Tailored to Your Home or Business
Efficient airflow starts with smart duct design. At Northern Heating & Cooling, we specialize in
ductwork installation in Great Falls that’s built for performance, comfort, and long-term efficiency. Whether you're adding central air to a vintage home, upgrading old ductwork in a remodel, or designing a brand-new system from scratch, our custom solutions ensure every room feels just right—without hot or cold spots.
Optimize Your Comfort with Custom Ductwork
No two buildings are alike, and your ductwork shouldn’t be either. Ductwork that's too small, too long, or poorly laid out can waste energy and leave some areas of your home uncomfortable year-round. Northern designs custom ducts in Great Falls, MT that are sized, routed, and sealed to maximize your system’s performance. From historic homes near Gibson Park to new builds on the edge of Cascade County, we tailor every solution to your space and heating/cooling needs.
Ductwork Design & Fabrication
Every great HVAC system starts with a smart layout. Our team begins by evaluating your home’s square footage, layout, and system requirements. We then map out the most efficient duct routes to ensure even airflow from room to room. Need custom fittings or transitions? We offer
ductwork fabrication in Montana using high-quality sheet metal, designed to fit perfectly within your structure and integrate seamlessly with your HVAC system.
Duct Installation & Replacement
If you're adding central air to a home that’s never had it—or replacing ductwork that’s undersized, damaged, or full of leaks—our technicians can install or rebuild an entire system from the ground up. We specialize in duct repair and installation for both residential and light commercial properties, including:
We also handle ductwork modifications for remodels, zoning systems, or changing room usage.
Full-system duct installs in older homes
Ductwork for HVAC retrofits or equipment replacements
Additions or basement finishes needing new duct runs
Replacing worn-out or crushed ducts with modern, sealed lines
Duct Sealing & Insulation for Better Efficiency
Ducts that leak air into attics or crawlspaces waste energy and strain your HVAC system. That’s why we take sealing seriously. During installation, we use durable sealants or tapes at all joints, and we offer duct insulation—especially important for ducts in unconditioned areas. These small details can lead to major savings on your utility bills and more consistent comfort in every room.
If you're noticing uneven temperatures, it might not be your HVAC unit—it could be your ductwork. Let us assess your system and recommend fixes that make a difference.
Custom Ductwork FAQs
How long does it take to install new ductwork?
It depends on the size of the home and whether we're working in existing construction or new builds. Most residential installs take 1–3 days.
builds. Most residential installs take 1–3 days. Can better duct design fix hot and cold spots?
Absolutely. Uneven temperatures are often caused by airflow issues. Custom duct layouts ensure balanced heating and cooling throughout your home.
What materials do you use for ducts
We typically use galvanized sheet metal for durability and performance, but we may use flexible ducting in tight or hard-to-reach areas if appropriate.
Can you add ducts to an older home with just a furnace or baseboard heat?
Yes. We regularly install ductwork in homes that didn’t originally have central HVAC systems. It’s a key part of our HVAC system retrofitting services.
Do I need to replace all my ducts when getting a new furnace or AC?
Not always—but it’s smart to have the ducts evaluated. If they're leaky, undersized, or poorly routed, a new system might not work efficiently unless the ductwork is also upgraded.
Let’s Build the Right Duct System for Your Space
If you're ready to solve airflow issues or install central HVAC in your Great Falls property, we can design and install a duct system that’s built to last. Contact Northern Heating & Cooling for a consultation and custom ductwork quote.