Your San Antonio Attic Insulation Specialist.

Attic insulation in San Antonio, TX is a must. The Average U.S. home saves* up to 15% on cooling and heating cost. San Antonio and south Texas fall under zone 2 where the R-value should be at a minimum of R30 (10.5 ” of insulation). The recommended level from the Department of Energy is R-60 (20″ of insulation). CPS, San Antonio’s current energy provider is offering a rebate for homeowners who install attic insulation.
Frequently Asked Attic Insulation Questions.
The average cost in San Antonio to install attic blown in insulation is between $1.65 - $3.00 a sq.ft. This depends on which R-Value is needed. If you have 1,000 sq ft of attic space, it would cost approximately $1,650 at an R-Value of 30.
In San Antonio, code requires 10.5" of insulation, this equates to an R30 value. The Department of energy recommends an R60 value at 20" of insulation.
The Pro-Cat professional insulation is warranted by Owens Corning to not settle and guaranteed to maintain its insulating power for the lifetime of the home.
Blown-in insulation comes in compressed bag blocks. Once opened it's fed to the Atti-Cat machine where the insulation block is broken up and blown into the attic with its air hose.
It depends on what your current attic condition is. The average homeowner saves hundreds a year. Not including less stress on your HVAC unit, this will extend it's life. Additionally, CPS in San Antonio to date* is offering a $0.25 per sqft cash* rebate. Lots of savings here.
Proper attic ventilation is crucial when installing attic insulation. Without proper ventilation, moisture and heat can't escape. Inadequate ventilation will also cause an asphalt roofing system to blister and or age at a faster rate. The housing authority recommends a 1/300 ratio. 1 sq ft of open ventilation to 300 sq ft of attic space. This needs to be divided into intake and exhaust.
How Does The CPS Attic Insulation Rebate Work?

The CPS Energy Rebate program is for insulation central air, heat pumps, window units, and pool pumps. For the purpose of this topic, we’ll focus on the attic insulation. You can learn more by visiting the CPS Rebate Program.
The insulation program rebates $0.25 – $0.35/SF. If you self insulate 1,000 sf., you would receive $250. If you hire a contractor like Rox Roofing you would rebate $0.35/SF, that’s $350 per 1,000 sq. Take a look at the CPS Home Energy Rebate Application.
Here’s Your DIY Checklist.
- Frame your attic entry hatch.
- Block and seal air gaps.
- Install baffles as needed.
- Have proper attic / roof ventilation.
- Calculate how many bags you’ll need.
- Get the correct insulation.
- Have a helper.
- Don’t step or fall through the ceiling.
- Stage your area.
- Have proper respirator and protective gear.
Schedule Your Insulation Quote.
We’ve made the propress simple to get a good insulation quote. Feel free to fill out the form here. We’ll return your call within 24 hrs. You can also call our office directly at 210-900-0977.