2026 Remodeling Cost Guide:
St. Louis, MO
St. Louis bids run -2% lower than national averages due to regional labor, materials, and market conditions.
Why St. Louis costs are lower than national averages
RemodelerIQ applies a single regional cost factor for St. Louis to all project types. That factor is -2% versus the national baseline, so bids in St. Louis tend to run lower than generic national calculators.
Addition
Cost guideADU / Garage Conversion
Cost guideBasement
Cost guideBathroom
Cost guideDeck Construction
Cost guideDriveway Replacement
Cost guideExterior Painting
Cost guideFence Installation
Cost guideFlooring Installation
Cost guideGarage Build
Cost guideHVAC Replacement
Cost guideInterior Painting
Cost guideKitchen
Cost guideRoof Replacement
Cost guideSiding Replacement
Cost guideSunroom Addition
Cost guideWhole House
Cost guideWindow Replacement
Cost guideThings to know in MO
From real homeowner and contractor discussions in your state.
Regional insight
No Statewide Contractor License: Missouri has no statewide general contractor licensing requirement Missouri doesn
Regional insight
Radon Testing: Missouri has significant radon levels, especially in the Ozarks Missouri has elevated radon throughout the state. Reddit strongly recommends testing before finishing basements. The granite in the Ozarks produces particularly high levels.
Regional insight
Foundation & Clay Soil Issues: Missouri Expansive clay is common throughout Missouri, especially in the St. Louis area. Reddit recommends proper drainage management and structural engineer consultation for foundation work.
Regional insight
Basement Moisture: Missouri basements commonly have moisture issues Wet basements are very common. Reddit recommends addressing exterior grading and drainage first, then interior waterproofing systems with sump pumps.
St.
Louis Brick & Tuckpointing: St. Louis has extensive brick homes requiring regular maintenance St. Louis brick homes need tuckpointing every 25-30 years. Reddit emphasizes using correct mortar type—modern mortar is too hard for historic brick. Poor tuckpointing causes more damage.
Pro Tip: Don't ignore the "lock-in" effect.
With many homeowners improving in place, local contractors are in high demand. If a bid looks too good to be true, get it reviewed before you sign—inspectors may catch code or quality issues later that cost you more.
All St. Louis cost guides
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Data sources: Zonda Cost vs Value 2025; Houzz 2024 Cost Guides; BLS OEWS 2023; FRED regional price indices; Reddit homeowner & contractor reports.
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