Ductwork Replacement Cost in Orange County
Ductwork replacement cost in two frames kept apart: Frame A prints an average project at $1,250 and $10 to $25 per linear foot; Frame B prints about $25 to $55 per linear foot at full scope.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
Two published frames, named apart and never blended
| Frame | What it prices | 2026 band |
|---|---|---|
| Frame A | average project, reported projects | $1,250 |
| Frame A | new ductwork, per linear foot | $10-$25 |
| Frame B | full replacement, per linear foot | $25-$55 |
| Frame B | whole-home replacement, total project | $1,500-$7,500 |
Frame A counts reported projects, project by project and foot by foot, and Frame B counts the full replacement scope, foot by foot and home by home, so the two land differently: the spread is the counting difference, never a blended range. Neither frame folds into the other. The material layer prices on the by-material guide; the breakdown layer on the breakdown guide.
Frame A lines, as reported
| Frame A line, as published | Reading | 2026 band |
|---|---|---|
| Average project, 3,970 reported projects | per project | $1,250 |
| Most homeowners, reported projects | per project | $452-$2,182 |
| New ductwork, removal and installation counted in | per linear foot | $10-$25 |
Frame A is a reported-project frame: its average and its typical range come from projects homeowners reported paying for, counted whole, and its per-foot line counts removal and installation inside the band. No full-scope whole-home total prints in Frame A, and no Frame A line is restated on Frame B's terms on this page.
Frame B lines, as reported
| Frame B line, as published | Reading | 2026 band |
|---|---|---|
| Full replacement scope | per linear foot | $25-$55 |
| Whole-home replacement | total project | $1,500-$7,500 |
| Average of reported projects | per project | no priced line printed |
Frame B prints the project at full replacement scope: one per-foot band that opens where Frame A's band closes and runs higher, and whole-home totals that sit above Frame A's typical range. The frames answer in different units of counting, which is why every figure here stays on its own frame's row.
Quoted apart from cleaning visits and equipment
Ductwork replacement is quoted apart from cleaning and apart from the heating and cooling equipment the ducts serve, and Orange County's older tract stock reaches the point where the duct system is priced as a project of its own: the runs counted by the foot, the project counted whole, and the equipment counted on a different page by a different guide.
The neighbours, differentiated head-on
The nearest borders, named plainly: a duct-cleaning guide prices a service visit, an equipment guide prices the furnace; this cluster prices only the duct-replacement project. The duct cleaning page prices duct cleaning as a service visit, a different purchase; the equipment replacement page prices the furnace and cooling equipment as an equipment project, a different purchase again.
Reading a ductwork replacement quote
- Frame named on every line
- Per-foot lines read apart from project totals
- Reported-project lines read apart from full-scope lines
Frequently asked questions
How much does ductwork replacement cost in Orange County?
Two frames, never blended. Frame A, from 3,970 reported projects: an average of $1,250 per project, most homeowners at $452 to $2,182, and $10 to $25 per linear foot with removal and installation counted in. Frame B, at full replacement scope: about $25 to $55 per linear foot, with whole-home totals of $1,500 to $7,500.
Why do the two frames print such different per-foot bands?
Counting. Frame A counts projects homeowners reported paying for, and its per-foot band of $10 to $25 sits inside that reported-project frame. Frame B counts a full replacement scope, foot by foot and home by home, and prints about $25 to $55 per foot. The spread is the counting difference, and the frames are never blended into one range.
What is the typical project range on each frame, as reported?
Frame A prints most homeowners at $452 to $2,182 per project, around its $1,250 average. Frame B prints whole-home replacement totals of $1,500 to $7,500. Each range sits on its own frame, counted its own way, and neither range is restated in the other frame's terms.
Is ductwork replacement the same purchase as duct cleaning or new equipment?
No, head-on: a duct-cleaning guide prices a service visit, and an equipment guide prices the furnace. Ductwork replacement takes out a home's duct runs and puts new runs in their place as one priced project; this hub prices that project only.
Where do the by-material and breakdown lines sit, as reported?
The material lines -- flexible, sheet metal, fiberboard, and fiberglass, priced per linear foot -- sit on the duct replacement cost by material guide. The breakdown lines counted inside and around each frame sit on the ductwork replacement cost breakdown guide. Each table stays on its own page.