Monroe County · South Florida

Insulation Contractor in Key Largo, FL

Spray foam, blown-in, batt, Fi-Foil, radiant barrier, and insulation removal for Key Largo homes, businesses, and industrial buildings. Licensed, insured, and open 24/7.

  • Serving all of Key Largo
  • Free written estimates
  • Open 24/7
  • Licensed & insured

Most Key Largo homeowners call us for one of three reasons: a room that never gets comfortable, an electric bill that keeps climbing, or water that came through the roof and soaked the attic. All three are insulation conversations. Standard Insulation serves every neighborhood in Key Largo and the surrounding Monroe County area with spray foam, blown-in, batt, Fi-Foil, radiant barrier, and full removal and remediation.

Where your ductwork lives changes the whole plan

In a large share of Key Largo homes, the air handler and the entire duct system sit in a vented attic that hits 135 degrees in August. That means every foot of duct is losing capacity, and any leakage in the supply side is dumping conditioned air into an attic while the return side pulls superheated, humid attic air into your house.

When we find that situation in Key Largo, the conversation usually turns to either a radiant barrier plus a heavy attic top-up, or a closed-cell spray foam roof deck encapsulation that brings the entire attic — ducts and all — inside the conditioned envelope. The second option costs more and does more.

Humidity is half the problem in Key Largo

People in Key Largo describe the symptom as the house feeling clammy even when the thermostat reads 74. That is a humidity problem, and it usually traces back to air leakage rather than to the air conditioner.

Outdoor air in South Florida carries a lot of moisture. Every cubic foot of it that leaks into your house through the ceiling plane has to be dehumidified by your AC, which is why an air-sealed house feels dramatically better at the same thermostat setting. It's also why an oversized air conditioner makes Key Largo homes feel worse — it satisfies the thermostat and shuts off before it has run long enough to actually pull moisture out of the air.

Commercial and industrial work in Key Largo

We handle commercial and industrial insulation across Key Largo and Monroe County — offices, retail, restaurants, hotels, medical suites, warehouses, distribution, manufacturing, and cold storage.

That includes building envelope, mechanical and thermal insulation on ductwork and piping, chilled water condensation control, fire-rated assemblies built to the listed detail, and metal building systems. Carrying all three scopes under one contractor eliminates the interface gaps that cause most failed inspections. Occupied buildings in Key Largo get night and weekend crews with containment and HEPA filtration.

All Services in Key Largo

Every Type of Insulation Available in Key Largo, FL

Residential, commercial, and industrial — the complete envelope under one contractor.

Property Types

Who We Serve in Key Largo

Insulation types in Key Largo

Every insulation type we install in Key Largo

Each one has its own Key Largo page with local pricing, Florida code requirements and FAQs.

Key Largo Insulation FAQs

How much does insulation cost in Key Largo, FL?

Most Key Largo attic insulation projects fall between $1.50 and $4.50 per square foot installed. A typical 2,000 sq ft Key Largo home runs roughly $2,200–$4,500 for a blown-in top-up to R-38, and $6,000–$13,000 for a full closed-cell spray foam roof deck encapsulation. Insulation removal adds about $1.00–$2.00 per square foot. Standard Insulation gives free, written, itemized estimates throughout Key Largo and Monroe County — call (561) 975-6204.

What R-value do I need in a Key Largo attic?

Key Largo falls in Florida Climate Zone 1 under the Florida Building Code, Energy Conservation (8th Edition). That means R-30 minimum for attics, with R-38 being the practical target for real comfort and utility savings. Many Key Largo homes built before 2005 are still measuring R-11 to R-19, which is a large part of why their summer bills are so high.

Do you offer spray foam insulation in Key Largo?

Yes. We install both open-cell and closed-cell spray foam throughout Key Largo, Monroe County. Closed-cell on the roof deck is the strongest option here — it air seals, controls humidity, brings your ducts into conditioned space, and adds measurable uplift resistance to your roof sheathing, which matters in a hurricane-exposed part of Florida.

How fast can you get to Key Largo?

We answer the phone 24 hours a day, 7 days a week. In Monroe County we can usually be on site for a free assessment within 24 to 48 hours, and emergency insulation removal after a roof leak or storm gets same-day priority whenever we can make it happen.

Do you handle commercial insulation in Key Largo?

Yes — offices, retail, restaurants, hotels, medical, warehouses, distribution, manufacturing, and cold storage throughout Key Largo and Monroe County. We carry envelope, mechanical, and fire-rated scopes, and we work nights and weekends in occupied buildings with containment and HEPA filtration.

Are you licensed and insured to work in Key Largo?

Yes. Standard Insulation is a licensed Florida insulation contractor carrying general liability and workers' compensation coverage, and we work throughout Key Largo and all of Monroe County. Certificates of insurance are provided to homeowners, general contractors, and property managers on request before any work begins.

Can insulation lower my electric bill in Key Largo?

Cooling is roughly half of a typical Key Largo electric bill. Bringing an under-insulated attic from R-11 up to a properly air-sealed R-38 commonly cuts the cooling portion by 20 to 30 percent — and more if your ductwork is in the attic and we add a radiant barrier. On a $300 summer bill that's usually $30 to $45 a month back in your pocket.

What is the best insulation for a Key Largo home?

It depends on your building and your budget, and we'll tell you honestly which one applies. If your attic is at R-13 and you want the most improvement per dollar, blown-in fiberglass to R-38 with proper air sealing is the answer. If your ducts are in the attic and you want humidity control and the biggest total comfort win, closed-cell spray foam on the roof deck is the answer. If your roof is more than twelve years old, do the roof first — we'll say so.

Get Your Free Insulation Estimate

Answer 6 quick questions. We call back fast — we're open 24/7. No pressure, no obligation, no charge for the estimate.

1 · Where is the job?
We serve every city in all 67 Florida counties.
2 · What kind of property?
3 · Which insulation services do you need? *

Prefer to talk? Call (561) 975-6204 — we answer 24/7. Or email bids@standard-insulation.com.

Free Insulation Estimate in Key Largo

No obligation, no charge. Call (561) 975-6204 — we're open 24/7.

Open 24/7 · 5827 Plunkett St, Hollywood, FL 33023 · bids@standard-insulation.com

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📞 Contact Us Now 💬 Free Estimate