Decks and Porches Cost in Saint Louis, MO in 2026
Most Decks and Porches projects in Saint Louis, MO cost between $7,500 and $26,000. The typical price is $14,000.
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
- Pressure-treated pine versus composite versus hardwood
- Height off the ground and stair count
- Railing material
- Footing depth required by frost line
Usually included
- Footings, framing and decking
- Railings and stairs
- Fasteners and flashing at the ledger
Usually extra
- Permits
- Under-deck drainage
- Built-in seating or pergola
Unit prices in Saint Louis, MO
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $26 |
| Mid-range | $46 |
| High-end | $87 |
Deck 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.
Meer Construction LLC
5.0(123 reviews)
209 Hidden Bluffs Dr, Lake St Louis, MO 63367
Exterior Experience
4.9(69 reviews)
3407 S Jefferson Ave #168, St. Louis, MO 63118
Maniaci Construction Inc.
5.0(62 reviews)
11485 Dorsett Rd Ste E, Maryland Heights, MO 63043
Outdoor Living Inc.
4.8(59 reviews)
845 S Holmes Ave, St. Louis, MO 63122
California Custom Decks
4.9(40 reviews)
9227 Manchester Rd, St. Louis, MO 63144
Highland Decks & Construction LLC
4.9(24 reviews)
67 Susan Dr, St Charles, MO 63301