Webster Groves sits on rolling terrain above limestone and fieldstone basements, packed with Victorian frame houses and early 1900s brick colonials that leak air from basement to roof through balloon framing, third-floor attics that bake at 130 to 150 degrees in July and plunge into the teens in January, and closed walls with no insulation at all. Our team has been sealing and insulating these homes since 2012.
Homeowners in Webster Groves (ZIP 63119) call St. Louis Spray Foam Insulation when their heating and cooling bills become unaffordable, when a bedroom stays cold while the living room overheats, or when they find damp insulation and condensation in the attic or crawl space. We know this neighborhood's construction inside out, and we know what it takes to make these older homes comfortable year-round.
Spray Foam Insulation in Webster Groves (63119)
Webster Groves homes were built to last, not to stay warm cheaply. The Victorian and Colonial frame houses that define the neighborhood have balloon framing that runs open from basement to attic, solid brick or brick-and-stucco walls with no cavity insulation, crawl spaces under first floors and rim joists that sit directly on fieldstone or brick foundations. In January, cold air pours in through those rim joists and up the balloon framing into the attic. In July, the attic temperature climbs past 140 degrees, and the air conditioning has to work twice as hard to cool a house that is already losing that conditioned air through the same open paths.
Spray foam seals those air leaks and insulates at the same time. Closed cell foam in the rim joists and band joists stops the cold air at the foundation. Open cell foam in the attic and walls handles the bulk of the insulation work at a lower cost per square foot. When we find damp insulation, condensation, or moisture in a crawl space or attic, we remove the wet material first, dry the space, and then seal and insulate. We do not spray over wet substrates or moisture problems. We fix the moisture first or we walk away.
Our team has been serving Webster Groves and the surrounding St. Louis area since 2012. We show up on time, we give you a written estimate with R-value and thickness specifications before we start, and we leave your property clean when the work is done.
Our services in Webster Groves
- Attic Spray Foam Insulation in Webster Groves · Open-cell roof-deck foam turns an attic that bakes at 140°F in July and freezes…
- Closed Cell Spray Foam Insulation in Webster Groves · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Webster Groves · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Webster Groves · Injection foam fills closed frame walls through small drilled ports…
- Crawl Space Spray Foam Insulation in Webster Groves · Closed-cell foam on crawl space walls and subfloors ends the cold floors of…
- Rim Joist & Band Joist Spray Foam in Webster Groves · Basement rim joists leak more cold air than almost anything in a St. Louis…
- Garage Spray Foam Insulation in Webster Groves · Garage ceilings under bonus rooms and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Webster Groves · Closed-cell foam stops a Missouri metal building from sweating in spring and…
- Commercial & New Construction Spray Foam in Webster Groves · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Webster Groves · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Webster Groves · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Webster Groves · Top plates; can lights; chimney chases and attic hatches leak more heated and…
How a Job Works in Webster Groves
We start with a free on-site assessment. We walk your attic, crawl space, basement, and garage. We look for air leaks, moisture, existing insulation that is settling or wet, and the spaces that need to be sealed and insulated. We measure the areas, we talk through open cell versus closed cell, we explain what the code requires in Webster Groves, and we give you a written estimate with the R-value and thickness we are going to install.
On the day of the work, we set up mechanical ventilation to move fumes out of the house and into the open air. We spray the foam in controlled passes, building thickness in layers so the material cures properly and does not trap heat or moisture inside itself. Attics and crawl spaces are the most common jobs, but we also spray rim joists, band joists, garage ceilings, and closed walls through small holes that we patch when we are done. If insulation has to come out first, we remove it and haul it away. The work takes anywhere from a few hours for a rim joist to a full day for a large attic or crawl space.
We keep your home occupied during the cure. We set a re-entry window of 24 to 48 hours before you move back into the space, and we tell you that window clearly on the day we finish. We clean up our equipment, we pack out our materials, and we leave your property the way we found it.
Spray foam pricing in Webster Groves depends on the area to be covered, the R-value and thickness specified, whether you choose open cell or closed cell, and what has to be removed or prepared first. A typical attic foam job runs from $1.50 per square foot for open cell in a straightforward space to $1.20 per board foot for closed cell in rim joists and band joists. A crawl space job starts at $2,500 and goes up with the square footage and moisture remediation needed. Wall injection foam for closed cavities runs from $2 per square foot. If wet or contaminated insulation has to come out first, add $950 and up for removal. A free written estimate with R-value and thickness specs is the only way to know your actual cost. Call us at (314) 912-1801 to schedule your assessment.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Webster Groves and nearby areas.
