(01) — Cost guide · Texas edition
Insulation Cost in Texas (2026)
In Texas, insulation cost for the typical project costs about $2,200 — 3% below the national average of $2,250. The gap comes from labour: Texas labour runs at 0.94× the national average, and labour is about 50% of an installed price, so the state figure below scales the labour share only and leaves material prices at national levels. Read the national guide for the full breakdown, then use this page for the Texas numbers, city prices and code notes.
- $1,200
- low end in Texas — simple spec
- $2,200
- typical in Texas — most homeowners pay near this
- $4,350
- high end in Texas — premium materials, complex site
- $2.18
- per sq ft installed for blown-in fiberglass to R-38, including air sealing, Texas-adjusted
Typical project used for these figures: a 1,000 sq ft attic topped up to R-38 with blown-in fiberglass, including air sealing. Ranges are 2026 planning figures for a professional installation in Texas, derived from the national guide as explained below — always confirm with local quotes.
Texas prices vs the national average
Materials for this project are priced nationally — a bundle of shingles or a pallet of panels costs roughly the same anywhere in the country before delivery. Labour is what moves, and Texas labour sits at 0.94× the national average. Applying that index to the labour share (about 50% of the installed price) gives the Texas range below. If your quotes cluster well outside it, the difference is usually specification — material grade, code extras or site difficulty — not the labour market, and it is worth asking which line moved.
| Figure | National average | Texas | Difference |
|---|---|---|---|
| Low end | $1,250 | $1,200 | 3% below |
| Typical project | $2,250 | $2,200 | 3% below |
| High end | $4,500 | $4,350 | 3% below |
For the full national breakdown — what is included, what is billed separately, DIY vs pro, and what drives the price — read the national insulation cost guide. The table below re-prices that same breakdown for Texas.
Cost breakdown, Texas-adjusted
The national guide's line items, with materials held at national prices and labour scaled by the Texas index of 0.94. Compare a real bid against this table line by line: if a contractor's labour lines run far above these figures, ask what is different about the job, and if the materials lines run far above, ask for the product grades.
| Line item | Materials | Labour (Texas) | Total |
|---|---|---|---|
| Blown-in fiberglass, 32 bagsLoose-fill fiberglass blown to about 14 in depth for R-38, including the blowing machine and hose work | $500 | $550 | $1,050 |
| Air sealingCaulk and foam at plumbing and wiring penetrations, recessed lights, top plates and the attic hatch | $100 | $400 | $450 |
| Vent baffles + attic hatch coverFoam baffles at the eaves so insulation does not block soffit vents, plus an insulated hatch cover | $100 | $200 | $350 |
| Prep, masking and cleanupFloor and stair protection, moving stored items, vacuuming the work path and hauling empty bags | $50 | $300 | $300 |
| Total for the typical projectState-adjusted from the national breakdown above | $700 | $1,450 | $2,150 |
Typical cost by city in Texas
Labour markets differ within a state too. These city figures apply each city's multiplier to the Texas typical price for the same project — use them to sanity-check a quote from a specific metro, not as a bid. Rural areas outside these metros often land below the cheapest city shown, while resort and island markets can exceed the highest.
| City | Typical project cost |
|---|---|
| El Paso | $1,950 |
| San Antonio | $2,100 |
| Fort Worth | $2,150 |
| Houston | $2,200 |
| Dallas | $2,250 |
| Austin | $2,350 |
Texas rules, climate and code that change the price
Texas has no statewide general-contractor licence, so permit rules and inspection quality vary by city — Houston, Dallas and Austin all run their own permitting portals with different thresholds, and unincorporated areas may require no building permit at all. Frost depth is shallow across most of the state (often 6–12 in), which keeps footing work cheap, but expansive clay soils around Dallas–Fort Worth and Houston move with moisture and demand deeper, belled piers for decks and fences. Gulf Coast wind and hail exposure raises roofing and fence specifications, and hail-resistant shingles are a common insurance-driven upgrade.
Insulation Cost in Texas: what to watch
Texas insulation is a heat job first: summer attic temperatures reach 130 to 150°F, so the payback is on cooling, not heating, and the target is usually R-38 rather than the R-49 of colder states. Air sealing matters as much as depth here — humid Gulf Coast air leaking into a cool house brings moisture with it, so the foam and caulk work at penetrations is not optional. Radiant barriers are a common Texas add-on, stapled to the roof deck to cut radiant heat, and they are worth pricing alongside the blown-in work. Expansive clay soils mean slab-on-grade homes have no basement to insulate, so the attic is the whole job. Compare quotes on the air-sealing scope, because a Texas attic insulated without sealing still leaks cooled air all summer.
What to ask contractors in Texas
Four questions that catch the expensive surprises on this project in this state. Get the answers in writing, on the quote, before you compare prices — two quotes are only comparable when they describe the same job.
- Permit: Most Texas cities require a permit for a roof replacement, a deck over 30 in high or attached to the house, and any structural work, but thresholds differ by city and unincorporated land often has none. Check the city permitting portal before work starts — an unpermitted deck or roof can stall a future sale even where enforcement is light.
- Specification: Ask for the full material specification — grades, ratings and the code extras in the state notes above — not just a brand name and a total.
- Labour basis: Ask how the quote treats the Texas labour market: a quote far above the $2,200 typical figure should name the extra work, access problem or specification that justifies it.
- Local references: Ask for two recent jobs in your city, not just your state — city prices above vary by thousands, and a contractor working regularly in your metro knows its permit office and inspectors.
Frequently asked questions — Texas
Most Texas cities require a permit for a roof replacement, a deck over 30 in high or attached to the house, and any structural work, but thresholds differ by city and unincorporated land often has none. Check the city permitting portal before work starts — an unpermitted deck or roof can stall a future sale even where enforcement is light.
Texas labour runs about 6% below the national average, so installed prices sit slightly under national figures, but Austin runs roughly 8% above the state figure and Gulf Coast wind/hail specifications can erase the saving on roofing. Material prices are national; it is the labour line and the local code extras that move a Texas quote.
Budget around $2,200 for the typical project (a 1,000 sq ft attic topped up to R-38 with blown-in fiberglass, including air sealing) in Texas, with most jobs landing between $1,200 and $4,350. That typical figure is 3% below the national typical of $2,250, because Texas labour runs at 0.94× the national average and labour is about 50% of the installed price. Get at least three local quotes before committing — the range above is a planning figure, not a bid.
Yes. Within Texas, the typical project runs from about $1,950 in El Paso to about $2,350 in Austin, reflecting local labour markets and, where applicable, stricter local code requirements. The city figures above are planning estimates from the state average, not quotes — a specific job's price depends on its specification, access and site conditions.