Screen In Existing Porch vs. New Build Cost Guide
The project-form layer prints apart by form: enclosing a covered porch that already stands reads as one project in both frames, and building a new screened porch reads as another, at separate bands.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
Project forms, priced apart in both frames
| Frame | Project-form line, as published | 2026 band |
|---|---|---|
| Frame A (professional-install totals) | enclose existing, per project | $2,000-$4,000 |
| Frame A (professional-install totals) | new build, per square foot | $25-$120 |
| Frame B (per-square-foot installed) | screen existing, per square foot | $10-$25 |
| Frame B (per-square-foot installed) | new build, per project | $10,000-$35,000 |
Every figure here is a published line inside its own frame and its own form, never folded into the other. The enclose-existing form prices a screen enclosure on a covered porch that already stands; the new-build form prices a screened porch as a new project. The project whole prices on the screened porch hub; the size layer on the size guide.
The enclose-existing form, as published in both frames
| Enclose-existing line | Frame reading | 2026 band |
|---|---|---|
| Enclose an existing porch, per project | Frame A | $2,000-$4,000 |
| Screen an existing porch, per square foot | Frame A | $5-$20 |
| Screen an existing porch, average per project | Frame B | $2,000-$5,000 |
| Screen an existing porch, per square foot | Frame B | $10-$25 |
The enclose-existing form prints as the lower band in both frames, read apart: Frame A names an average of about $2,800 on an existing structure, and Frame B names an average band of $2,000 to $5,000. Neither average converts into the other frame.
The new-build form, as published in both frames
| New-build line | Frame | 2026 band |
|---|---|---|
| New screened-in porch, per square foot | Frame A | $25-$120 |
| New 14x16 porch, average per project | Frame A | about $11,000 |
| New screened porch, per project | Frame B | $10,000-$35,000 |
| New screened porch, per square foot | Frame B | $50-$175 |
The new-build form prints as the higher band in both frames: a whole new porch project, priced from its own published totals and rates, apart from every enclose line on this page.
What separates the two forms, as reported scope only
The published frames separate the forms by the starting point named on the quote. The enclose-existing form starts from a covered porch that already stands and prices the screen enclosure as the project. The new-build form starts with no porch standing and prices the screened porch whole, as a new project. Permit lines print in Frame A at $150 to $300 as published, apart from both forms, and screen material class prints in Frame A as a named price driver across forms, with fiberglass and aluminum as its lower-cost classes as published.
Reading a project-form quote, as reported lines only
A project-form quote should name its form and its frame on every line: an enclose line read in its frame, or a new-build line read in its frame, never a band carried across forms.
- Project form named beside every band
- Enclose lines shown apart from new-build lines, by frame
- Averages read inside their own frame only
- Size totals read on the size guide, never folded in here
Frequently asked questions
How much does it cost to screen in an existing porch vs. build new, as published?
Frame A prints enclosing an existing porch at $2,000 to $4,000 and a new screened-in porch at $25 to $120 per square foot. Frame B prints screening an existing porch at $2,000 to $5,000 on average and building new at $10,000 to $35,000. The forms and frames stay apart on every line.
What does the enclose-existing form print at, as published?
Frame A prints $2,000 to $4,000 per project and $5 to $20 per square foot, with an average of about $2,800 on an existing structure. Frame B prints $2,000 to $5,000 on average and $10 to $25 per square foot.
What does the new-build form print at, as published?
Frame A prints a new screened-in porch at $25 to $120 per square foot and an average of about $11,000 for a new 14x16. Frame B prints a new screened porch at $10,000 to $35,000, or $50 to $175 per square foot.
What separates the two project forms, as reported?
The starting point named on the quote: the enclose-existing form prices a screen enclosure on a covered porch that already stands, and the new-build form prices a screened porch as a new project with no porch standing. Each form keeps its own published bands.
What do permit lines print at across the forms, as published?
Frame A prints permits at $150 to $300 as published, apart from both forms. The permit line reads as its own reported cost line in that frame, never folded into an enclose or new-build total.