How Much Does Attic Insulation Cost in DFW?

Howdy, neighbor! My name's Neal, and I run DFW Attic Insulation, a local crew based right here in North Texas. I've been in the roofing and construction industry for over 20 years. One thing I kept seeing? Homeowners sweating in homes that should've felt cool as a Whataburger milkshake in December.

The most common question we get is what attic insulation costs. Here's the answer.

For a typical 1,500 sq ft attic, blown-in fiberglass installed with air sealing and baffles runs $1,300 to $3,200 depending on the R-value you choose. R-38 is the golden number for North Texas attics — R is for "resistance," not "ridiculously hot attic."

R-Value	Price Range	What's Included
R-38	$1,300–$2,200	Materials, labor, air sealing, baffles, cleanup
R-49	$1,600–$2,700	Materials, labor, air sealing, baffles, cleanup
R-60	$1,900–$3,200	Materials, labor, air sealing, baffles, cleanup

Those prices are all-in. No hidden fees, no "we'll know for sure when we get up there" surprises. The Department of Energy has a good guide on why air sealing matters before insulation — it's not optional if you want real savings.

I've been in 3,940 attics across DFW. Seen things I can't un-see. Mostly fiberglass dust. But also some raccoon families I got attached to.

What affects the price?

Three things determine your final number.

Square footage is the biggest variable. A 1,000 sq ft attic costs a lot less than a 2,000 sq ft attic. Current condition matters too — if the old insulation is contaminated or needs removal, that adds to the cost. And access plays a role. Attics with low clearance, lots of obstructions, or no walk boards take more labor.

What does that mean for your energy bill?

The average DFW homeowner saves $400 to $800 per year after upgrading to R-38 or R-49. Most people recoup the cost in 2 to 4 years.

I had a customer in Plano a few years back. July electric bill: $412. They went with R-49 and air sealing. Next month's bill: $246. That's $166 in monthly savings. The job paid for itself in under two years.

And that's not counting the comfort improvement. No more 10-degree difference between your first and second floor. No more AC running from April to October without a break.

Energy Star says sealing air leaks and adding insulation can save up to 10% on annual energy bills. Our customers typically see more.

R-38 vs R-49 — which one should you pick?

We recommend R-38 minimum for DFW. Climate zone 3 — the "Texas Toast" zone. You can check the DOE's climate zone map and R-value recommendations to see what's right for your area.

R-49 is better if you have the ceiling height. The extra cost to go from R-38 to R-49 is typically $300 to $500. The payback is usually under 2 years.

Here's a hard truth: if your current insulation is level with or below your floor joists, you don't have enough. If it's contaminated or damaged, read about the replacement process.

Is it worth it for your home?

For the vast majority of DFW homes built before 2010, the answer is yes. If your attic has less than R-19 — about 6 inches of fiberglass — you're leaving money on the table every single month.

One thing I tell people: don't just pick the cheapest quote. The cheap guy is either using thin material, skipping prep work, or paying uninsured labor. You get what you pay for.

Also worth knowing: we've told plenty of homeowners their insulation was fine. We'd rather lose a sale than sell something you don't need.

Common questions, straight up

How much does attic insulation cost in DFW?

For a typical 1,500 sq ft attic, R-38 blown-in fiberglass installed runs $1,300–$2,200. R-49 runs $1,600–$2,700. Prices include materials, labor, air sealing, baffles, and cleanup.

Is attic insulation worth the cost?

Most DFW homeowners save $400–$800 per year after upgrading. Payback is typically 2–4 years. Plus you get more comfortable upstairs bedrooms and less strain on your AC.

What R-value do I need?

R-38 minimum for DFW climate zone 3. R-49 is better if you have the ceiling height. If your insulation is level with or below the floor joists, you need more.

How long does installation take?

Most jobs are done in a single day. A typical 1,500 sq ft attic takes 3–5 hours including prep, air sealing, baffle installation, and cleanup.

Give us a call. We'll come take a look at your attic with a thermal camera, give you a written quote, and tell you honestly if you even need anything.

P.S. Mention "SWEATY ATTIC" when you call and we'll throw in a little discount. Just our way of saying thanks for being clever.