Cost to Screen Porch / Three-Season Room Addition in San Antonio, TX (2026)

If you’re budgeting a screen porch / three-season room addition in San Antonio, most projects run $6,926-$30,301, 13% below the $18,000 national average. What moves that number most is usually one thing: Square Footage. On its own it can swing the cost by $5,000 - $40,000, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Build over an existing deck or concrete patio. You eliminate new foundation costs of $2,000-$5,000 and the existing floor is already there.

$6,926-$30,301 in San Antonio

13% below the national average · 0.87x cost multiplier

Expect to pay $6,926-$30,301 for a screen porch / three-season room addition in San Antonio, about 13% below the national benchmark. The Southeast region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at San Antonio prices.

Cost Breakdown in San Antonio

Line ItemLowMidHigh
Cost per sq ft$35$78$130
Materials$4,253$8,978$20,790
Labor$2,865$6,032$13,573
Permits$473$756$1,418
Total$7,591-14% vs. national avg$16,428-14% vs. national avg$38,144-13% vs. national avg

Budget

Basic 12x16 (192 sq ft) screen porch added to existing deck - wood framing, aluminum screening, simple shed roof, no electrical

Mid-Range

16x20 (320 sq ft) three-season room with composite decking, ceiling fans, recessed lighting, screen or EZE-Breeze panels, proper footing

Premium

20x24 (480 sq ft) fully enclosed three-season room with vaulted ceiling, bead board ceiling, ceiling fans, built-in outdoor kitchen bar, premium windows or screen systems, full electrical

Material Options

Material prices below are national averages; availability in San Antonio may shift costs slightly.

MaterialCost/UnitBest For
Standard Aluminum Insect Screening$1 - $3 per sq ft of screen areaWarm climates or homeowners who primarily want insect protection during summer monthsLowest cost, good visibility, allows full airflow, easy to repair
EZE-Breeze Vinyl Track Panels$8 - $15 per linear footHomeowners in mixed climates who want to use the porch spring through fallConvertible between screen and enclosed panel, extends season significantly, keeps out rain and wind
Fiberglass Screening$1.50 - $4 per sq ftHigh-traffic porches or pet households where durability is a priorityMore durable than aluminum, better UV resistance, doesn't crease as easily
Composite Decking Floor$8 - $15 per sq ft installedThree-season rooms and porches that will see heavy use and need low-maintenance flooringLow maintenance, durable, no painting or staining needed, fade-resistant
Pressure-Treated Wood Frame and Floor$4 - $8 per sq ft for flooringBudget-conscious builds where maintenance is acceptableLower cost, natural look, easy to repair, widely available

Other Projects in San Antonio

San Antonio Estimate

Typical Range

$6,926-$30,301

vs. National Average

13% below national

Cost Multiplier

0.87x

Cost Per sq ft

$35-$130

This 0.87x estimate prices San Antonio labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →