Duct Sealing Cost by Method Guide
The method layer prints apart by frame: manual sealing of accessible runs and aerosol sealing of a whole system, each inside its own frame.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
The method layer, priced apart
| Frame | Method line, as published | 2026 band |
|---|---|---|
| Frame B | manual sealing | $400-$1,900 |
| Frame B | aerosol sealing | $1,300-$2,700 |
| Frame A | professional duct sealing, across methods | $375-$6,000 |
| Frame A | average project, across methods | about $2,250 |
Every figure here is a published line inside its own frame, never averaged into one band. Frame B is the frame that splits by method; Frame A counts across methods. The project whole prices on the duct sealing hub; the pacing layer on the breakdown guide.
Manual sealing lines, as reported
| Method line, as published | Frame | 2026 band |
|---|---|---|
| Manual sealing: mastic and tape sealing of accessible runs | Frame B | $400-$1,900 |
| Manual sealing, split out on its own | Frame A | no priced line printed |
| Manual sealing counted inside the across-method band | Frame A | inside $375-$6,000 |
| Manual sealing counted inside the across-method average | Frame A | inside about $2,250 |
The manual lane is the accessible-runs lane, named in Frame B as mastic and tape sealing of accessible runs: Frame B prices that lane on its own, and Frame A counts it inside a project band and an average that span both methods. Neither reading is carried against the other frame's band.
Aerosol sealing lines, as reported
| Method line, as published | Frame | 2026 band |
|---|---|---|
| Aerosol sealing: internal sealing of a whole system | Frame B | $1,300-$2,700 |
| Aerosol sealing, split out on its own | Frame A | no priced line printed |
| Aerosol sealing counted inside the across-method band | Frame A | inside $375-$6,000 |
| Aerosol sealing counted inside the across-method average | Frame A | inside about $2,250 |
The aerosol lane is the whole-system lane, named in Frame B as internal sealing of a whole system: its band opens higher and closes higher than the manual lane on the same frame. Frame A prints no aerosol band of its own, and that absence is recorded here rather than filled from Frame B's table.
Reading the same method on both frames, as reported
| Reading, as published | Frame | 2026 band |
|---|---|---|
| Manual sealing, priced as its own lane | Frame B | $400-$1,900 |
| Manual sealing, counted across methods | Frame A | inside $375-$6,000 |
| Aerosol sealing, priced as its own lane | Frame B | $1,300-$2,700 |
| Aerosol sealing, counted across methods | Frame A | inside $375-$6,000 |
The same method word appears on both frames and means a different count on each. On Frame B, the word names one priced lane on one project; on Frame A, it names one lane counted inside a band and an average that span both lanes. This guide keeps those readings on separate lines, and neither reading is converted into the other.
Reading a by-method quote, by frame
A method line answers the method question: manual sealing of accessible runs, or aerosol sealing of a whole system. A quote names its method in its first line and its frame beside it, and its lane reading apart from any across-method reading on the same lane.
- Method named beside every band
- Lane readings read apart from across-method readings
- Each frame's method reading read on its own frame only
Frequently asked questions
What does manual duct sealing cost, as published?
Frame B prints manual sealing at $400 to $1,900, for mastic and tape sealing of accessible runs. Frame A prints no manual band on its own; manual projects are counted inside its across-method band of $375 to $6,000 and its average of about $2,250.
What does aerosol duct sealing cost, as published?
Frame B prints aerosol sealing at $1,300 to $2,700, for internal sealing of a whole system. Frame A prints no aerosol band on its own; aerosol projects are counted inside its across-method band of $375 to $6,000 and its average of about $2,250.
Which method lane prints lower on Frame B, as reported?
Manual sealing, at $400 to $1,900. Aerosol sealing prints at $1,300 to $2,700 on the same frame and the same table. Each lane keeps its own band, and the two lanes are never averaged into one method band on this guide.
Does Frame A split its price by sealing method, as reported?
No. Frame A counts completed projects across methods: one band of $375 to $6,000 and an average of about $2,250, with method named as a stated driver rather than a priced split. The two-lane method split -- manual and aerosol -- is Frame B's reading only.
Can a Frame B method band be combined with a Frame A average?
No. Frame B counts one method lane at a time and Frame A counts projects across methods whole. The frames and their method readings are never blended, no lane band is summed into a new total here, and neither band is converted into the other.