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Insulation in San Antonio, TX

Compare 6 local insulation pros. Typical service: $1130–$2179.

Top Insulation Companies in San Antonio

  1. 1.Geo-Insulation, LLC

    5.0★ (418 reviews)

    5.0★ from 418 reviews

    +12108485658Website

  2. 2.Prime Spray Foam Insulation San Antonio

    4.9★ (40 reviews)

    4.9★ from 40 reviews

    +12109402447Website

  3. 3.ThermoLine Insulation

    5.0★ (6 reviews)

    5.0★ from 6 reviews

    +17266108429

  4. 4.Anchor Insulation of Texas, LLC

    4.4★ (7 reviews)

    4.4★ from 7 reviews

    +12104550501Website

  5. 5.Cryora Insulation Systems

    5.0★ (4 reviews)

    5.0★ from 4 reviews

    +17263361942Website

  6. 6.NRG Zone Insulation

    +12109723440Website

Insulation Cost in San Antonio

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in San Antonio
Attic blown-in insulation$1,130–$2,179/job
Attic spray foam$2,421–$4,842/job

Insulation prices in San Antonio run about 19% below the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 6 companies serving San Antonio, rated 4.9★ on average across 475 customer reviews.

San Antonio Climate & Seasonal Timing

What San Antonio's weather means for scheduling insulation.

Last spring frost
February 28
First fall frost
November 30
Annual precipitation
34.86"
Heating degree days
1,607
Cooling degree days
2,879
MonthLowHighPrecip
Jan39.6°62.7°1.93"
Feb42.1°66.8°1.98"
Mar49.7°73°2.34"
Apr56.7°80.2°1.99"
May65.5°85.6°4.45"
Jun71.6°91.1°4.49"
Jul73.5°93.6°2.71"
Aug73.5°94.8°2.34"
Sep68.1°89.8°3.33"
Oct58.6°81.4°4.45"
Nov48.9°71.9°2.72"
Dec39.7°63.5°2.13"

NOAA station data 3.16 miles from San Antonio.

Permits & Regulations in TX

  • Texas has no state painting or general contractor license; contractor registration and permits are handled by each city
  • Several Texas cities require contractors to register before pulling a permit
  • Work that disturbs paint in homes built before 1978 must be done by a Lead-Safe Certified firm under the EPA Renovation, Repair and Painting Rule

License required: No state painting or remodeling license

Sources: www.tdlr.texas.gov, www.epa.gov

Insulation FAQs for San Antonio

How much does attic insulation cost in San Antonio?

Blown-in attic insulation in San Antonio typically runs $1130-$2179 for a 1,000 square foot attic; spray foam costs two to three times more.

How many insulation contractors serve San Antonio?

We track 6 insulation contractors serving San Antonio.

Is insulation in San Antonio more expensive than average?

Installation labor in San Antonio runs about -19.3% versus the national average.

How much insulation does a home in San Antonio need?

San Antonio sees about 1,607 heating degree days and 2,879 cooling degree days a year; the colder the climate, the higher the attic R-value worth paying for.

Does insulation help with San Antonio summers?

Yes -- with summer highs near 95F in San Antonio, attic insulation cuts the heat load on the air conditioner as much as it holds heat in winter.

Do insulation contractors in TX need a license?

In TX, Texas has no state painting or general contractor license; contractor registration and permits are handled by each city. Adding attic insulation in San Antonio rarely needs a permit.

Is spray foam worth it in San Antonio?

Spray foam earns its price mainly when ducts or an air handler sit in the attic; otherwise blown-in at $1130-$2179 gets most San Antonio homes the same R-value for less.

How many quotes should I get for insulation in San Antonio?

Two or three; with 6 insulation contractors serving San Antonio, compare the R-value and depth each quote installs, not just the price.