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Armor Insulation of East Texas Armor Insulationof East Texas
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Insulation questions, answered

The questions we hear most from East Texas homeowners about spray foam and drill-and-fill wall insulation. Don't see yours? Ask us directly.

I don't think I have any wall insulation. How do I find out?

The easiest way to check is to remove an outlet cover on one of your exterior walls and look into the wall cavity with a flashlight. We can also confirm it during an estimate or a thermal inspection.

How do you add insulation to walls that are already closed up?

For finished walls we use drill-and-fill: we drill a series of small, methodically placed holes, dense-pack the cavity with fiberglass or cellulose, then plug and patch the holes. It's how you insulate an existing home without tearing out drywall or siding.

Can I have it done from the exterior on part of the house, and from the inside on the rest?

Yes. We'll work from outside, inside, or a combination — whatever suits your home and finishes best. We walk through the plan with you at the estimate.

How far apart are the drill holes, and will you patch them?

Spacing depends on the age and framing of your house; we'll go over it at the estimate. Every access hole is plugged and patched as part of the job — on the exterior we work under a course of siding wherever possible so the holes don't show.

How does the installer know when a wall cavity is completely full?

Through a combination of timing, methodical hole placement, and reading the back pressure as the cavity packs out — accounting for obstacles like pipes and wiring so every cavity is filled to the right density.

Will drill-and-fill add moisture to my walls?

No. We dry-blow the fiberglass or cellulose into the cavity — no water is added, so there's no drying-out period and no dampness introduced to your walls.

I have brick veneer or older finished walls. Can you still insulate them?

Yes — that's exactly what drill-and-fill is built for. We can add insulation to finished, brick-veneer, and older homes through small access points, so you get the comfort and energy savings without a remodel.

Will installation disrupt my home?

There's very little disruption. Most jobs take one to two days depending on the structure, and we keep the work area protected and clean.

Is blown-in wall insulation a fire hazard?

No. Fiberglass is non-combustible, and the cellulose we use is treated with fire retardant to meet fire-safety standards. As with any insulation, we install to code.

Does the insulation corrode the plastic coating on electrical wiring?

No. Fiberglass and cellulose don't react with the plastic coating on electrical cabling and wiring.

Will blown-in insulation settle and lose its R-value over time?

Blown-in material can settle if it's under-filled — which is exactly why we dense-pack it to the correct density. Installed right, it holds its performance for the long term.

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