Attic insulation for Central Texas and DFW homes
Gaps sealed first, then blown-in cellulose or fiberglass added to the depth your attic needs.
Get a free estimate →Free estimates. A written price before any work starts. Serving Central Texas from Georgetown to Waco to DFW, and surrounding areas.
Proper attic insulation can reduce heating and cooling needs by
up to 30%.
Source: Oncor, a Texas electric utility. Actual results vary.
Serving Central Texas
From Georgetown to Waco to DFW, and surrounding areas
Savings vary. Find out why in the seller’s fact sheet on R-values. Higher R-values mean greater insulating power.
Signs you need more insulation
- Upstairs or back rooms stay hot no matter where you set the thermostat.
- Your AC runs almost nonstop on summer afternoons.
- Your electric bill jumps every summer.
- In the attic, you can see the tops of the wooden ceiling joists.
- The insulation looks flat, packed down, or patchy.
- 1Roof deck
- 2Ridge vent
- 3Baffle
- 4Loose-fill insulation
- 5Joist tops showing
ENERGY STAR calls air sealing and adding insulation two of the most cost-effective ways to improve a home’s energy efficiency and comfort.1 It’s one of the few home upgrades that keeps paying you back every month.
How we do it
Measure
We check how deep your insulation is and what shape it’s in.
Seal gaps
We seal open gaps around lights, pipes, and wiring so hot attic air stays out.
Keep vents clear
We make sure the roof’s air vents stay open so the attic can still breathe.
Blow it in
Insulation goes in at an even depth across the whole attic. We mark the depth so you can check it.
Clean up
We clean up and show you before-and-after photos.
What R-value means
R-value measures how well insulation resists heat flow. The higher the R-value, the greater the insulating power. It depends on the type of insulation, its thickness, and its density.2
That’s why depth alone doesn’t tell you what you’re getting. Cellulose and fiberglass need different depths for the same R-value, and loose-fill insulation only reaches its rated R-value when the full number of bags goes in.3
For an attic with no insulation in Central Texas and DFW, ENERGY STAR recommends R-49. Where 3 to 4 inches are already in place, it recommends adding R-38.4
Cellulose or fiberglass
| Blown cellulose | Blown fiberglass | |
|---|---|---|
| R-49 depth | About 14 in., settling to about 13 in. | About 17 in. |
| R-38 depth | About 11 in., settling to about 10½ in. | About 13½ in. |
| Weight at R-49 | About 1.8 lb per sq. ft. | About 0.7 lb per sq. ft. |
| Made from | Mostly recycled paper | Glass fiber |
| Strength | More R-value per inch; fills tightly around obstructions | Much lighter; settles very little |
Depths and weights from manufacturers’ published coverage charts.3 Your receipt lists the exact figures for the product we install. We’ll recommend the material that fits your attic.
Ask any insulation company for these, in writing
Federal rules require insulation installers to put these figures on your receipt.5 A quote that only lists square footage and a price doesn’t tell you what you’re buying.
We put them on every quote and every receipt, and we leave depth markers in your attic so you can check from the hatch.
We also install dense-pack cellulose in existing walls and batt insulation in new construction.
- The R-value they will install.
- The installed depth, and the depth after settling.
- The number of bags for your attic’s square footage.
- A dated receipt with the installer’s signature.
Attic insulation rates
Installed prices, by R-value and material. You get a firm written price after we measure.
| Service | Central Texas and DFW | Williamson County |
|---|---|---|
| Add R-38 blown cellulose (about 11 in.) | $1.35 per sq ft | $1.65 per sq ft |
| R-49 blown cellulose (about 14 in.) | From $1.65 per sq ft | From $1.95 per sq ft |
| R-49 blown fiberglass (about 17 in.) | From $2.25 per sq ft | From $2.55 per sq ft |
| Attic air sealing | Typically $600–$1,200Quoted by scope | Typically $600–$1,200Quoted by scope |
Labor and material included, as one lump-sum price with no sales tax added. The higher the R-value, the greater the insulating power.
Included at no extra charge
- A stated R-value, with depth markers in your attic.
- A dated, signed receipt with the R-value, thickness, and bag count.
- Before-and-after photos, emailed to you.
Questions about attic insulation
Can you add insulation on top of what I have?
Usually, yes, as long as the old insulation is dry and clean. If it got wet or was soiled by rodents, it should come out first. See insulation removal.
How long does it take?
Most attics are done in one day.
Will it make a mess in my house?
The insulation goes into the attic, not your living space. We cover the floor along our path, and we clean up before we leave.
Is there still a federal tax credit for insulation?
Not for work done in 2026. The federal credit ended for projects completed after December 31, 2025. If a utility program applies to your home, we’ll tell you.
Attic insulation in Georgetown and Williamson County
We also insulate and air-seal attics in Georgetown, Round Rock, Cedar Park, Leander, Hutto, and Taylor, with the same stated R-value, depth markers, and written receipt. Duct cleaning can be added to the same visit.
Call Georgetown (512) 610-8077Other services
Get a free attic check.
We’ll measure your insulation and give you a written price. No pressure.
Sources
- U.S. Environmental Protection Agency, ENERGY STAR, Seal and Insulate: Methodology for Estimated Energy Savings, and Why Seal and Insulate.
- U.S. Department of Energy, Energy Saver and Oak Ridge National Laboratory: insulation R-values.
- Manufacturer coverage charts: Greenfiber SANCTUARY cellulose and Owens Corning AttiCat fiberglass loose-fill insulation.
- ENERGY STAR, Recommended Home Insulation R-Values (based on the 2021 International Energy Conservation Code).
- Federal Trade Commission, R-Value Rule (Labeling and Advertising of Home Insulation), 16 CFR Part 460.
Figures are national averages, not a guarantee. Results vary by home.