South Florida's insulation authority.
Cardinal Insulation of Boca Raton is a locally owned insulation contractor built to solve one problem: South Florida homes that won't stay cool, won't stay dry, and won't stop draining FPL bills. We are not a national franchise, a lead-generation site, or a jack-of-all-trades handyman service. We are a focused crew of insulation specialists who do one thing — seal and insulate homes across the Boca–Delray–Boynton corridor — and we do it to a standard the industry skips.
Built for the South Florida cooling load.
Cardinal Insulation of Boca Raton was founded to address a gap that South Florida homeowners live with every day: attics that hit 140°F, second-floor bedrooms that won't cool, and FPL bills that climb every summer with no rate change to explain it. The root cause is almost always the same — under-insulated, leaky, or water-damaged attic envelopes built to code minimums that were never engineered for the cooling load. We exist to fix that, one home at a time.
What we do: Cardinal installs blown-in attic insulation, closed-cell and open-cell spray foam, radiant barriers, attic insulation removal and sanitizing, crawl space encapsulation, air sealing, blower-door testing, and solar attic fans. Every project starts with a free FLIR thermal inspection — we map every void, gap, and compressed batt in infrared before we touch a thing — and ends with a post-install proof report documenting the before-and-after. We install to R-38, above Florida code R-30, because the cooling load demands it.
Who we serve: Homeowners across the Boca–Delray–Boynton corridor and the wider South Florida service corridor — from Boca Raton and Delray Beach to Boynton Beach, West Palm Beach, Parkland, Deerfield Beach, Pompano Beach, Coral Springs, Hollywood, Fort Lauderdale, Wellington, Loxahatchee, Jupiter, and beyond. We work in waterfront estates, country-club homes, active-adult communities, historic bungalows, new construction, and everything between. Every neighborhood gets the same local crew, the same FLIR-verified process, and the same lifetime workmanship warranty.
Who builds it: Cardinal is a verified local business — not a lead-generation site and not a national franchise. We are a local crew of insulation specialists, verified by a building scientist, who live in and serve the corridor we insulate. Our address is real (4263 NW 1st Ave, Boca Raton, FL 33431), our phone is answered 24/7 ((561) 654-7698), and our 5.0-star Google rating is earned from real homeowners in real neighborhoods — not bought, not imported, and not fabricated. We believe that local authority is built one verified install at a time, and our territory map and neighborhood project pages document every one.
Four things we will not skip.
FLIR-verified work
Every install is mapped in infrared before and after — so the seal is documented, not claimed.
Lifetime workmanship warranty
We back every retrofit with a lifetime workmanship warranty. If a seal fails, we fix it.
Code-plus R-values
Florida code requires R-30 in ceilings. Cardinal recommends and installs R-38 for the cooling load.
Air-seal first
Insulation without air sealing is a bandage. We seal penetrations before we insulate, every time.
Verified by a Building Scientist
Cardinal's insulation packages are specified and verified against building-science principles — not installed by guesswork. Every job carries a documented thermal proof report.
Building-Science Specified
Every insulation package is specified against building-science principles — conductive, convective, and radiant heat paths addressed in the correct order, not just more material.
FLIR Thermal Verification
A certified thermal-imaging protocol images the attic and ceiling plane before and after install. You see the documented proof the seal is real — not a claim.
R-Value & Depth Measured
Insulation depth is blown to land at the target R-value after settling, measured against Florida code and DOE guidance for IECC climate zone 2A — not estimated.
Specifications aligned with U.S. Department of Energy, ENERGY STAR®, and Florida Building Commission guidance for South Florida's hot-humid climate.
A real address. A real crew.
Cardinal Insulation is headquartered at 4263 NW 1st Ave in Boca Raton, Florida. We are open 24 hours, 7 days a week, because insulation emergencies — a flooded attic, a rodent contamination, a second floor that hit 90° — don't wait for business hours. Call a specialist and get a human on the first ring.
Serving the Boca–Delray–Boynton corridor.
From the Boca inlet to Boynton's western estates — every hot zone below is a home we sealed this year. This is our local service area.
