Blown-In Insulation in San Antonio, TX

Cellulose runs about R-3.7 per inch and fiberglass about R-2.5 per inch, so hitting the same R-value target takes noticeably more inches of fiberglass than cellulose. Cellulose packs denser and resists air drifting through the blanket better, but it's heavier and settles more; loose-fill fiberglass is lighter, barely settles, and won't wick water if the attic leaks. We read each material's coverage chart and blow it to its own correct install depth, because inch-for-inch they are not interchangeable.

Because it settles after install, cellulose more than fiberglass, the depth on day one isn't the depth six weeks later. We install above the final R-target so that once the blanket settles, the SETTLED depth still meets spec. Blowing only to the target on day one leaves you short after settling, and that's one of the most common ways a loose-fill job quietly under-delivers.

No, and that's the key limit of the method. Loose fill is a conductive barrier, slowing heat as it moves through, but air still leaks straight past it at top-plate gaps, can lights, and penetrations. Blown over an unsealed attic it merely filters the leaking air. Air-sealing is a separate step that should come first; the blow handles conduction, not leakage.

Usually yes, as a top-off, as long as the existing layer is dry, intact, and neither moldy nor matted. Loose fill drapes right over old fill, and we blow the added depth to bring the total up to target. If the old layer is settled flat or crushed by foot traffic, we re-fluff or re-level it first, so the new fill isn't just resting on a dead, compressed base.

Loose fill's whole advantage is a seamless blanket that conforms around joists and wiring with no gaps, but only when it's installed to an even depth at the right machine density. Under-fluffed or thin-at-the-edges fill leaves cold spots. We dam the eaves, dial in the blower density, and staple depth-marker rulers across the deck, so the installed inches are a measurement you can read rather than a number we promise.

Often, once we know why. Post-war ranch chimneys here were frequently built short and unlined — draft was an afterthought. Fixes range from a cap and liner that improve flow, to extending flue height, to accepting that the stack will never draft wood well and converting to a sealed gas unit that doesn't care. A smoke test tells us which house you own.

Limestone and stucco carry the city's architecture outside naturally — a plastered chimney breast with a cantera or brick accent reads native here in a way a stacked-slate kit never will. Design aside, we spec real fireboxes, proper flue height, and clearances to any patio structure. The look should be old San Antonio; the venting should be strictly this-century.

Quietly is the whole trick. The original surround, tile, and mantel stay untouched; a stainless liner drops down the existing flue; a vented log set scaled to the firebox goes in with the controls hidden. Done right, a 1915 Monte Vista living room looks unchanged — it just lights on demand and stops shedding creosote. The character survives; the maintenance doesn't.

Yes — our crews cover San Antonio's 110 ZIP codes across Bexar County, including Alamo Heights line, Stone Oak, Monte Vista, plus the surrounding communities.

We offer same-week scheduling across San Antonio, booked by a real person in under two minutes, 7 AM to midnight every day.

San Antonio spans some of the oldest masonry in Texas — King William, Monte Vista, Alamo Heights — to vast new-build like Alamo Ranch and Stone Oak. Historic clay-liner cracking and masonry repointing dominate the older stock, while prefab cap-and-chase work leads in the suburbs. Across both kinds of stock, our work keeps the hearth looking and drafting like the design feature it is. Blown-In Insulation is part of keeping that local housing stock safe, efficient, and up to code.

Blown-In Insulation in San Antonio starts from $1,600, but the honest number depends on what a craftsman finds on site — we won't quote premium work blind. A CSIA-certified technician inspects the actual condition, then hands you an itemized, transparent written quote tied to the findings and built to one national standard. No teaser pricing, no surprises. Call (469) 992-4912 for a free, no-pressure San Antonio quote.

Yes — we run same-week and emergency blown-in insulation across San Antonio, scheduled by a real person 7 AM to midnight every day. For an active chimney hazard, call (469) 992-4912 and we prioritize San Antonio dispatch so a craftsman is on it fast.

Our San Antonio crew lives in and works the metro across Bexar County, including Alamo Heights line, Stone Oak, Monte Vista — a certified, local blown-in insulation team genuinely near you, holding the same national craftsmanship standard on every job, not dispatched cold from another city. Call (469) 992-4912.