Coral Gables' 1920s Mediterranean Revival homes sit under barrel-tile roofs with hot wood-truss attics that run 140-160°F most of the year, all built on concrete slabs with thick masonry walls that hold moisture like a sponge in Miami's tropical humidity. Spray foam insulation and air sealing are not optional in Coral Gables (33134), they're how you keep cooling costs down, stop condensation in the attic, and hold the line against heat and humidity that never really quit.
Miami Spray Foam Insulation has been serving Coral Gables homeowners and property managers since 2012. We know these neighborhoods, the building stock, and the moisture problems that come with it. When your attic is dripping or your cooling bill has climbed past reason, we show up with a truck and an honest estimate that names the R-value and thickness you're getting.
Spray Foam Insulation in Coral Gables (33134)
Coral Gables' signature homes were built in an era when air conditioning was new and attic ventilation was the only cooling strategy. That means your attic was never designed to be sealed and conditioned. The wood-truss roof structure sits inches above the tile, the HVAC air handler and ductwork run through that hot space year-round, and the vapor drive from outside pushes moisture inward through the masonry walls and into the attic cavity. Add a roof leak (tile roofs fail, and they fail quietly), a rat infestation in the insulation, or insulation that has settled into the bottom of the truss cavity, and you have a cooling system that works twice as hard to reach temperature in a room that feels hot no matter what you set the thermostat to.
Closed-cell spray foam stops that cycle. It seals the attic air-tight, insulates the roof deck itself instead of the attic floor, brings the thermal boundary up to the roof line, and dries out the moisture. Open-cell foam works too if the attic is already dry and you want a lower cost per board foot, but in Coral Gables' humid climate, closed cell is the honest choice for most homes. We've been doing this work in these neighborhoods for over a decade. We know which attics have to come clean first, which ones can be sprayed over, and when blown-in insulation is the right answer instead.
Our services in Coral Gables
- Attic Spray Foam Insulation in Coral Gables · Open-cell foam on the roof deck turns a Miami truss attic that runs 150°F into…
- Closed Cell Spray Foam Insulation in Coral Gables · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Coral Gables · Half-pound open-cell foam air-seals attics and interior walls at a friendlier…
- Wall & Injection Foam Insulation in Coral Gables · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Coral Gables · Most Miami homes sit on slab, but older frame homes and new elevated houses…
- Rim Joist & Band Joist Spray Foam in Coral Gables · Cantilevered bonus rooms, elevated homes and second-floor additions leak cooled…
- Garage Spray Foam Insulation in Coral Gables · Garage ceilings under bonus rooms and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Coral Gables · Closed-cell foam is the insulation that stops a South Florida metal building…
- Commercial & New Construction Spray Foam in Coral Gables · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Coral Gables · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Coral Gables · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Coral Gables · Top plates; can lights; chases and attic hatches pull humid outside air into a…
How a Job Works in Coral Gables
We start with a free on-site assessment. We walk your attic, crawl space, or wall cavity, measure what needs to be covered, check for moisture, damaged insulation, or roof leaks that have to be fixed first, and talk through what you're trying to solve (a cooling bill, a hot room, visible condensation, or insulation that has failed). We'll tell you if the substrate is dry enough to spray or if we need to address moisture first. We give you a written estimate with the R-value and thickness we're specifying, the cost per board foot or square foot, and a timeline.
The work itself is straightforward. We set up mechanical ventilation to pull fumes out of your home during cure. We spray the foam in controlled passes, building thickness to spec. For attic work in an occupied Coral Gables home, we typically ask for a twenty-four to forty-eight hour re-entry window before you move back into the space. We're careful around HVAC ducts, electrical boxes, and soffit vents. If old insulation has to come out first (contaminated, settled, or in the way), we remove it, haul it off, and then spray the clean substrate.
We leave your property clean. We remove drop cloths, vacuum up dust, and walk you through what you're looking at. No surprises, no bill padding, no call backs because the smell won't go away.
Pricing in Coral Gables depends on what you're doing and what condition the space is in. A typical attic spray foam job in a Coral Gables home runs from $1.50 per square foot for open-cell to $1.20 per board foot for closed-cell, but that's only a starting point. The real cost factors are the area to cover (a 1,200 square foot attic versus a 2,000 square foot attic), the R-value and thickness you need (which the building code and your energy goals set), whether old insulation has to come out first (add $950 and up for removal), and how tight the access is. A crawl space job typically starts around $2,500. Wall injection foam for a retrofit runs from $2 per square foot. If you're looking at a full insulation removal and replacement because the existing insulation is wet or contaminated, budget $2,800 and up. Air sealing around rim joists, band joists, or garage walls starts at $650. Call us at (786) 503-8206 for a free estimate. We'll measure on site, walk you through the options, and give you a number that's real.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Coral Gables and nearby areas.
