A duct system is a design, not just material. Run sizes, the number and placement of returns, how the flex is supported and how well it is insulated decide whether every room gets its share of air.
New ducts go in with new construction and additions, with a system replacement when the old ducts are failing, and in houses that were never built with room for them.
Attic ducts spend every summer afternoon in air far hotter than the house below them. The insulation level, the run sizes and how the flex is supported decide how much of the cold air's chill survives the trip.
Why people call us for duct installation
- New system with old ducts
- Remodel changed the layout
- Undersized returns
- Adding a room
$69 diagnostic, credited toward the work
- Duct design
- Installation and sealing
- Duct wrap
- Balance and test
How a duct installation goes
A duct system is designed from the rooms: each room's share of the air sets its run size, and the return is sized so the system can breathe. You get the layout, the materials, the insulation level and the price on paper before you decide.
Runs are supported so the flex is not crushed or kinked, joints are sealed with mastic and boots are sealed to the ceiling. A full duct replacement with a system changeout typically takes two to three days.
Every register gets checked before the job is called done. A weak register means the run feeding it gets traced back toward the trunk for a kink, a loose joint or a crushed section. Our labor carries a one-year warranty on top of the manufacturer's.
We repair, maintain and install these brands. Logos identify the equipment we work on and do not imply endorsement by the manufacturer.
Before you call
Design comes from the rooms
Each room's share of the air sets its run size, and the return is sized so the system can breathe. Undersized runs and a starved return are design faults that sealing cannot fix. Read more
R-value, in one sentence
Higher R-value means more of the chill survives the attic. Flex duct comes in several levels, and the thin ones cost you every hot afternoon for the life of the system. Read more
New ducts are tested
A brand-new duct system installed with a permit is tested for leakage and verified by an independent rater before the permit is finalized. That is how you know the work is tight.
No room for ducts?
Mini-duct systems run flexible tubes about two inches across through joist bays and wall cavities, which is how central air goes into houses that were never built with room for ductwork. Read more
Sealed as it goes in
Every seam, collar and takeoff gets mastic, foil tape rated UL 181 handles the connections that suit it, and boots are sealed to the drywall from inside the house. Tight on day one is what the leakage test confirms. Read more
Usually part of the same project
Common questions
Not automatically. They get inspected with every equipment quote. If they are the right size and in decent shape, sealing them is enough. If the material is failing, the design was wrong from the start, or the layout never served part of the house, replacing them with the changeout is the time to do it. Read more
Higher R-value means more of the cold air's chill survives the trip through a hot attic. Flex duct is sold in several R-values, and the thin ones cost you every summer afternoon. We quote the level that suits where the ducts run. Read more
Two. A mini-duct system moves air through flexible tubes about two inches across, small enough to thread through joist bays and wall cavities. Or skip ducts entirely with ductless mini splits. Read more
New ductwork with a system changeout typically takes two to three days. A partial replacement is shorter. You get the schedule with the written quote.
One year on our labor, plus the manufacturer's warranty on parts and equipment.
Yes, on new systems, through Wisetack: monthly plans on approved credit. Checking your options does not affect your credit score. Read more
“David was great and super helpful, got our AC back and running within an hour! He was also very flexible with my rescheduling which I really appreciated.”
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818-277-5056Licensed #1119892 · Veteran-owned · Pasadena & Reseda