Extreme Spray Foam of St. Louis
Verified Pro
~8 years online5.0(25)
Insulation Services in St. Louis, MO
Compare 28 insulation services contractors near you in St. Louis and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated April 20, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
extremesprayfoam.com/spray-foam-insulation-st-louis-mo
Foam Materials & Equipment Company
Verified Pro
3½+ years online5.0
Mid States Spray Foam
Verified Pro
2+ years online5.0
Better Home Insulation
Verified Pro
~5 years online4.9(167)
Midwest
Verified Pro
11½+ years online4.2(10)
Other Businesses in This Area
Insulation Masters Inc
ISS Insulation Services & Solutions
St. Louis Insulation Pros
Bay Insulation of Missouri Inc
5.028+ years onlineBi-State Insulation, Inc.
5.022½+ years onlineGonz Insulation
5.0~4 years onlineMissouri Spray Foam Insulation
5.0~7 years onlineSidney Insulation Inc
5.0West County Insulation
5.05+ years onlineFoam Co.
4.93½+ years onlineFoam Engineers - Insulation Experts
4.926 years onlineGoley, Inc.
4.923+ years onlineKoala Insulation of Gateway West & Metro East IL
4.97½+ years onlineKoala Insulation of St. Louis
4.97½+ years onlineSpray Foam Insulation St. Louis
4.9~8 years onlineSt Louis Insulation
4.913½+ years onlineIDI: Insulation Distributors Inc.
4.8~15 years onlineSt. Louis Insulation of Metro East Illinois
4.813½+ years onlineL & L Insulations
4.728½+ years onlineFoam Products Corporation
4.328½+ years onlineBay Insulation of Missouri
3.928½+ years onlineInsulation Services in Nearby MO Cities
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Insulation Services in St. Louis, MO
St. Louis insulation upgrades pay back fast given Ameren MO/Spire rates and MO's heat-cold swings. Most pre-1990 St. Louis homes have R-19 to R-30 attics — well below the modern R-49+ target. Air sealing before insulation matters in older Central West End and Soulard homes. Ameren rebates available. NeedInstall connects you with St. Louis insulation contractors who handle Ameren paperwork, blower-door testing, and proper detailing.
St. Louis attic top-up to R-49+: $1,800-$4,500. Wall dense-pack: $4,500-$11,000 retrofit. Basement spray-foam: $4-$7 per board foot. MO requires a state contractor's registration. Ameren MO rebates ($300-$1,500). Blower-door test ($300-$500) often required.
Frequently Asked Questions
- Worth on natural gas?
- Yes — MO heating loads heavy. Payback 4-7 years.
- Ameren rebate?
- $300-$1,500 for qualifying upgrades.
- Spray-foam vs cellulose?
- Cellulose for attics. Spray-foam for basements.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across St. Louis and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.