Demilec Blown In Insulation Nationwide

Demilec Blown In Insulation in Houston: What to Know First

We install and service Demilec blown in insulation in Houston as an independent Demilec service provider, and most jobs are done within one to three days from the first call. Blown in insulation projects in Houston typically run between $1,200 and $3,800 depending on attic square footage, current R-value, and whether old insulation needs removal first. That’s the honest range, not a teaser number that changes when the crew shows up.

Call (806) 581-1010

If you own a home with Demilec spray foam or blown in insulation and your attic isn’t holding temperature the way it used to, this page is for you. Bryce Holloway and the Alden Insulation Houston crew work on Demilec-equipped Houston homes regularly, and we know exactly what these systems do well and where they wear down. Call (806) 581-1010 and a live person answers, any hour.

How Demilec Products Fail – and How We Fix Them

Demilec makes solid insulation products, but Houston’s climate punishes every brand. Heat, humidity, and the freeze-thaw cycles we get a few times a year work on insulation in ways that desert or northern climates don’t. Here’s what we see on Demilec jobs in Houston:

• Heatlok HFO Pro settling and void gaps: Demilec’s Heatlok HFO line is closed-cell spray foam, but when a previous contractor mixed it off-ratio or applied it too thin across a Houston attic floor, you get shrinkage gaps along joists and eaves within two to three years. We find the voids with a thermal scan, then re-fill with blown in fiberglass or cellulose matched to the existing R-value. Houston’s summer attic temperatures above 140°F make these gaps worse than Demilec’s own spec sheets suggest.
• Sealection 500 open-cell moisture saturation: Sealection 500 is open-cell foam, which breathes. In a Houston attic with poor ridge ventilation, it absorbs humidity like a sponge. Once saturated, its R-value drops and it holds moisture against roof decking. We remove the waterlogged sections, correct the ventilation, and replace them with blown in fiberglass that doesn’t hold moisture the same way.
• Pest damage in Demilec blown in insulation: Squirrels and rats in Houston attics tunnel through blown in insulation no matter the brand, but Demilec’s softer fiberglass blend shows traffic paths more clearly. We pull the contaminated material, sanitize the deck, and blow in fresh insulation at the proper depth. This is a job we’d never recommend a homeowner do themselves, given what rodents leave behind.
• Ago Plus hybrid system delamination: Houston homes with Demilec’s Ago Plus hybrid setup sometimes see the blown in top layer separating from the foam base if the foam was applied to a dusty or damp deck. The blown in layer drifts and exposes the foam underneath. We re-blow the top layer and mechanically fasten baffles at the soffits so the material stays put through Houston’s windy fall evenings.
• R-value degradation from dust and debris: Any blown in insulation in an older Houston home collects dust, and that dust settles into the air pockets that make insulation work. On Demilec jobs specifically, we find the paper backing from old batt insulation mixed in with the blown material, which compresses it. We vacuum it out, air seal the penetrations, and blow in new material at the depth required for the R-value you’re paying for.

Our Demilec Blown In Insulation Process

Here’s how a Demilec blown in insulation job goes with our crew, step by step:

1. 1
   You call (806) 581-1010 and describe what’s happening. A live person answers, writes down the details, and schedules a visit inside a firm window, not a half-day range.
2. 2
   We inspect the attic and the existing Demilec system. Bryce Holloway reads an attic the way a mechanic reads an engine. We check depth, moisture, coverage, and ventilation before touching anything.
3. 3
   You get a written price before any tools come off the truck. The number on that paper is the number on the invoice. No revisions at the door.
4. 4
   We do the work. Depending on what the inspection showed, we remove bad material, air seal penetrations, and blow in insulation to the target R-value. We install Demilec, Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, GreenFiber, or Reflectix as the job requires.
5. 5
   We test and verify. Depth checks at multiple points, a thermal scan where warranted, and photos of the finished attic so you can see what we did.
6. 6
   You get the 365-Day Done Right Promise in writing. If the work fails within a year, we come back at no charge. That’s the whole point of The Garrison Standard.

What Demilec Blown In Insulation Costs in Houston

Most Demilec blown in insulation jobs at Houston homes run between $1,200 and $3,800. The variables are attic square footage, what R-value you currently have versus what you want, and whether old material needs to come out first.

Removal of waterlogged or pest-contaminated insulation adds cost because it’s slow, dirty work that has to be done right. The price of disposal, the number of bags of blown material, and whether we need to correct ventilation all move the number. You’ll get a line-item written estimate before we start, and the price won’t change when the job is done. Call (806) 581-1010 for a free estimate. No charge for the visit, no pressure to sign.

Why Houston Homeowners Call Alden Insulation Houston for Demilec Work

We’re independently owned and operated, held to The Garrison Standard. That’s not a slogan. It means every job gets a written guarantee valid for 365 days, and if the work fails in that window, we return and fix it free. The Garrison Code is the operating rule: show up inside the window, do the job by the book, clean up, and stand behind the work in writing.

Our technicians are background-checked and arrive in uniform, so you know exactly who’s walking into your home. We answer calls with a live person 24 hours a day. And because we install insulation from eight industry brands including Demilec, Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, GreenFiber, and Reflectix, we’re not tied to selling one product line. We recommend what fits your Houston attic and your budget.

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