Home Weatherization in Irmo, SC

Friarsgate, Harbison, Whitehall — Irmo’s big subdivisions went up in the 1970s and 80s, and those houses are now 40 to 50 years old. Their original insulation has settled into a thin mat, their duct systems have loosened at every joint, and the bonus rooms and split-levels that made them popular are exactly the floor plans that suffer most in a South Carolina summer.

Weatherization brings a 1980 house up to a 2026 standard of tightness without remodeling anything: air seal, insulate, seal the ducts, verify with a blower door. Attic and Crawl Space Solutions has done that work across the Midlands since 2014 — free inspection and written quote first, always.

What Home Weatherization Covers in Irmo

“Weatherization” is the umbrella for every upgrade that makes a Irmo home hold its conditioned air instead of leaking it. A project can be one of these or all of them together — the free inspection tells you which ones your house actually needs:

• Attic insulation — blown-in or batts to R-38–R-49, the backbone of every weatherization project
• Air sealing — closing the gaps, chases, and penetrations that let conditioned air escape
• Duct sealing — mastic-sealed, insulated ductwork so cool air actually reaches the rooms
• Blower door testing — before-and-after numbers that prove the improvement
• Home energy audits — a whole-house diagnosis when you want the full picture
• Crawl space moisture control in Irmo — sealed vapor barriers and dehumidification, because humidity is half of a South Carolina energy bill

Forty Years On: What Irmo’s 1970s–80s Homes Need Now

Insulation doesn’t last forever. Blown material from the Carter and Reagan years has settled 30–40% below its installed depth in most attics we open in Irmo, and the duct mastic of that era has dried and cracked at the joints. Add the era’s signature features — can lights punched through the ceiling plane, whole-house fans that were never sealed, panned floor-joist returns — and you have a house that leaks from every direction.

We fix it in the right order: seal the ceiling plane and those legacy penetrations, re-insulate to R-38–R-49, then seal and test the ductwork. Split-levels and bonus rooms get their knee walls and floor cavities addressed specifically — that’s where those floor plans hide their worst leaks.

Why Irmo Homes Bleed Energy in a South Carolina Summer

Lake Murray humidity plus mature-tree shade plus 45-year-old construction gives Irmo homes a distinctive summer misery profile:

• Bonus rooms and FROGs that hit 85 degrees by afternoon
• Split-level bedrooms that never match the hallway thermostat
• Dust streaks at supply registers — a classic duct-leak sign
• AC replaced but the bills barely moved

Every one of those symptoms has a measurable cause, and weatherization fixes causes — not symptoms. That’s why the results hold up year after year with zero maintenance.

How a Weatherization Project Works

• Free inspection — we measure insulation depth, check ducts, inspect the crawl space, and photograph everything.
• Written quote — exact scope and exact price, explained in plain English. No pressure, no expiring discounts.
• One- to two-day install — air sealing first, then insulation, then ducts. Clean crews, protected floors.
• Verification — blower door numbers and photos of the finished work, so you can see what you paid for.

Also serving nearby: home weatherization in Lexington and West Columbia, or see all of our service areas and services.

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