Sunrooms Cost in Saint Louis, MO in 2026
Most Sunrooms projects in Saint Louis, MO cost between $25,000 and $92,000. The typical price is $51,000.
Labour and materials in Saint Louis run about 4% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Three-season versus fully conditioned four-season
- Foundation type — slab, piers or existing deck
- Glazing performance
- Whether HVAC is extended into the space
Usually included
- Foundation and framing
- Glazing and roof panels
- Electrical rough-in and finish
Usually extra
- HVAC extension
- Permits
- Interior finishes beyond basic
Unit prices in Saint Louis, MO
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $125 |
| Mid-range | $255 |
| High-end | $460 |
Sunroom builders in Saint Louis, MO
Businesses listed on Google near Saint Louis, MO. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Patriot Builds Sunrooms
4.6(294 reviews)
811 S Kirkwood Rd, Kirkwood, MO 63122
Jacob Sunrooms, Exteriors & Baths
4.6(264 reviews)
9723 IL-161, Fairview Heights, IL 62208
Jacob Sunrooms, Exteriors & Baths
4.8(110 reviews)
1707 Gilsinn Ln, Fenton, MO 63026
Butler Home Improvement
4.9(71 reviews)
906 Vandalia St, Collinsville, IL 62234
California Custom Decks
4.9(40 reviews)
9227 Manchester Rd, St. Louis, MO 63144
Terra Nova Builds
4.6(21 reviews)
135 W Monroe Ave, Kirkwood, MO 63122