Zoning Damper Installation
Adding a new space is a great time to set up independent zone control between it and the rest of the house.
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Duct Replacement
New Ductwork Design & Installation
Adding a room, finishing a basement, or opening up a new HVAC zone means your existing ductwork usually can't just be extended — it needs to be properly designed for the new space.
Why New Ductwork Design & Installation Matters
Extending an existing duct system into a new space without redesigning it is one of the most common reasons additions and finished basements end up uncomfortable. Ductwork has to be sized for the specific volume of air a space needs — tack on a new room without accounting for that, and you either starve the new area of airflow or throw off the balance in the rest of the house. Designing new ductwork from scratch, sized to the space and balanced against the rest of your system, is what actually delivers even heating and cooling to every room, old and new.
When You Might Need This
- You're finishing a basement that currently has no ductwork
- You're building a home addition that needs to be heated and cooled
- You want to add a new HVAC zone to an existing system
- An existing duct run was extended informally and never balanced properly
What Happens During New Ductwork Installation
We start by calculating the heating and cooling load for the new space and designing duct runs sized to match — not just tapping into the nearest existing line. Installation follows local code for materials, sizing, and support, with sealed connections and insulation where runs pass through unconditioned areas. Before we finish, we check airflow across the new space and the rest of the system to make sure adding the new ductwork didn't throw off balance anywhere else in the house.
New Space Deserves Properly Sized Ductwork, Not A Shortcut Extension.
A finished basement or addition only feels finished once it actually holds a comfortable temperature — and that starts with ductwork designed for the space, not borrowed from somewhere else.
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Duct Sealing & Insulation
We seal and insulate every new duct run we install, and can address existing ductwork in the same visit.
View Duct SealingAll Duct Services
See the full list of duct replacement, cleaning, sealing, installation, and zoning services we offer.
View Duct Services
Frequently Asked Questions
New Ductwork Installation Questions
Yes, though it takes more planning since we have to work around finished walls and ceilings. We'll walk the space with you first to figure out the least invasive way to route new ductwork.
We calculate the heating and cooling load for the specific space based on its size, insulation, windows, and use, then size the duct runs to move the right amount of air without straining the rest of your system.
It depends on whether your existing furnace or AC has the capacity to handle the added space. We'll check your current system's capacity before recommending new ductwork alone versus additional equipment.
Planning an Addition or Finished Basement?
Get ductwork designed and installed for your new space from the start.