Kendall's 1970s and 1980s concrete-block homes sit on a flat limestone slab with hot wood-truss attics that run 140 to 160 degrees most of the year, and that's where your air handler and ductwork live. When the AC is working overtime and your bill keeps climbing, or when you find damp insulation or condensation in that attic space, you need someone who knows this neighborhood's exact construction and the tropical humidity that never stops pushing moisture inward.
Miami Spray Foam Insulation has been serving Kendall and the surrounding Miami area since 2012. We seal and insulate the spaces that matter: hot attics with ductwork, hollow concrete-block walls, rim joists, and the crawl spaces under older homes. Our team arrives with a written estimate that names the R-value and thickness we'll spray, and we work with fully insured crews who understand that in Kendall, getting the air sealing and vapor control right is what stops the problem from coming back.
Spray Foam Insulation in Kendall (33156)
Kendall's housing stock is built on concrete slab with no basement or crawl space underneath. The walls are concrete block, and above them sits a low wood-truss attic carrying the AC air handler and its ductwork. That attic is the weak point. In summer, the sun beats down on the roof and the temperature inside climbs to 140 to 160 degrees while the air handler runs all day, and the tropical humidity outside is constantly trying to push moisture in through every gap and seam. When the original fiberglass batts settle or get damp, they lose their R-value and the cooling bill gets out of control. When you close the attic with spray foam and seal the rim joists and band joists where the block walls meet the wood frame, you stop the heat and humidity from bleeding through.
Many Kendall homes also have hollow concrete-block walls that were never insulated when they were built. Wall injection foam fills those cavities without tearing into the stucco exterior. If the attic insulation has failed or gotten wet, we remove it first, dry the space properly, and then spray. We've worked in hundreds of Kendall attics, crawl spaces, and rim joists, and we know the access challenges, the ductwork routing, and what the building department in Miami-Dade County expects to see on the inspection.
Our services in Kendall
- Attic Spray Foam Insulation in Kendall · Open-cell foam on the roof deck turns a Miami truss attic that runs 150°F into…
- Closed Cell Spray Foam Insulation in Kendall · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Kendall · Half-pound open-cell foam air-seals attics and interior walls at a friendlier…
- Wall & Injection Foam Insulation in Kendall · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Kendall · Most Miami homes sit on slab, but older frame homes and new elevated houses…
- Rim Joist & Band Joist Spray Foam in Kendall · Cantilevered bonus rooms, elevated homes and second-floor additions leak cooled…
- Garage Spray Foam Insulation in Kendall · Garage ceilings under bonus rooms and walls shared with the house are…
- Metal Building & Barndominium Spray Foam in Kendall · Closed-cell foam is the insulation that stops a South Florida metal building…
- Commercial & New Construction Spray Foam in Kendall · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Kendall · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Kendall · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Kendall · Top plates; can lights; chases and attic hatches pull humid outside air into a…
How a Job Works in Kendall
We start with a free on-site visit to your home in Kendall. We measure the attic, crawl space, or wall cavities, look at what's already there, check for moisture or damage, and talk through your comfort problem or energy bill. We leave you with a written estimate that shows the R-value, the thickness we'll spray, the square footage or board footage, whether we're using open-cell or closed-cell foam, and what has to be removed or fixed first. No surprises, no pressure.
On the day of the work, our team brings the spray rig and the equipment to control thickness and ratio. If insulation has to come out first, we remove it carefully and haul it away. We set up mechanical ventilation in the attic or crawl space because the foam needs to cure properly, and that means air moving through during application and for 24 to 48 hours afterward. If you're living in the house, we'll tell you when the space is ready to re-enter. We seal the rim joists, the band joists, the attic penetrations, and the ductwork boots so the conditioned air stays inside and the outside heat and humidity stay out.
When the foam is cured and the ventilation is done, we clean up and walk through the space with you. Your attic or crawl space is sealed, insulated, and ready to perform.
Pricing for spray foam insulation in Kendall depends on the area you're covering, the R-value and thickness required by code, whether you choose open-cell or closed-cell foam, and what has to be removed or repaired first. A typical attic spray-foam job in a Kendall home runs from $1.50 per square foot for open-cell foam to higher costs for closed-cell, which is denser and performs better in hot, humid climates. Wall injection foam for hollow block cavities starts around $2 per square foot. If you have a crawl space, expect to budget from $2,500 and up depending on the size and condition. Insulation removal and haul-away starts at $950. The best way to get a real number is to call us at (786) 503-8206 for a free on-site estimate. We'll measure, assess what has to happen first, and give you a written price with all the details spelled out.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Kendall and nearby areas.
