St. Louis, MO · Updated 2026

How Much Does Sunroom Addition Cost in St. Louis, MO?

Average sunroom addition costs in St. Louis range from $19,929 to $26,963. Get a free, customized estimate below.

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Sunroom Addition Cost Breakdown — St. Louis, MO

ItemUnitQtyUnit PriceTotal
Sunroom Kit & Glass Panelssq ft200$80.75$16150.00
Foundation & Flooringsq ft200$11.40$2280.00
Electrical & HVAC Tie-Inlump sum1$1140.00$1140.00
Labor (full build)hr48$80.75$3876.00
Estimated Total$23,446.00

* Prices are estimates based on St. Louis market rates. Actual costs may vary based on project specifics.

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Material line 1

Line total$16,150

Material line 2

Line total$2,280

Material line 3

Line total$1,140

Material line 4

Line total$3,876

Frequently Asked Questions — Sunroom Addition in St. Louis

How much does sunroom addition cost in St. Louis, MO?

The average cost for sunroom addition in St. Louis, MO ranges from $19,929 to $26,963, depending on project scope, materials, and labor rates. St. Louis costs are close to the national average.

How do I get a free sunroom addition estimate in St. Louis?

Use Brixor's free online estimate generator above. Enter your project details, customize line items for your specific needs, and download a professional PDF estimate instantly.

What factors affect sunroom addition costs in St. Louis?

Key factors include project size and complexity, material quality, labor rates in St. Louis (MO), permit requirements, accessibility of the work area, and seasonal demand. Getting multiple estimates is recommended.