Current energy code
2021 IECC · R-49
Cibolo Attic Insulation
Attic Insulation in Cibolo, TX
Even attic insulation from edge to edge, so every room in your Cibolo home stays comfortable.
San Antonio Insulation Pros provides attic insulation in Cibolo, TX, for newer homes that still run warm upstairs. We check the depth across the whole attic, look for thin edges, uneven coverage and air leaks, and top up the low spots with blown-in insulation. Your estimate is free, and the price is set before we start.
- Licensed & Insured
- Free Estimates
- Clear Pricing
- 5-Star Rated
Get a free quote
Takes 30 seconds. No obligation.
Our Services
Cibolo Attic Insulation Services, From Air Sealing to Top-Ups
As your attic insulation contractor in Cibolo, we match the fix to what's actually up there. In a newer attic that's often sealing and added depth, so those come first here, but every option is on the table.
Attic Air Sealing
Gaps around can lights, wiring holes, plumbing vents and the attic hatch get sealed first, so the new layer isn't fighting a draft.
Attic Insulation Top-Up
If your insulation is dry and in good shape, we blow more over it until the shallow areas match the rest of the floor.
Blown-In Fiberglass Insulation
A strong choice for open attic floors, and light enough to add depth without weighing down the ceiling below.
Blown-In Cellulose Insulation
Treated recycled paper that fills tight spaces near low eaves, where there's little room to work.
Garage Insulation
An attached garage soaks up heat all afternoon and passes it to the room above and the wall it shares with your house. Insulating the garage helps keep that heat on the garage side.
Spray Foam at the Roof Deck
Foam on the underside of the roof puts the attic, ducts and AC unit inside the insulated space. A bigger project, worth pricing when your equipment lives up there.
Want to insulate beyond the attic? We also handle wall insulation for Cibolo homes, and if any old or damaged material needs to come out first, our insulation removal service takes care of it. Got a crawl space under the house? Our crawl space insulation helps the floors over it stay comfortable.
Local homes
Where a Newer Cibolo Attic Can Fall Short
Most Cibolo homes were built in 2000 or later, so your attic probably has insulation. The real question is where it's thin, and that's hard to judge from the top of the ladder.
- At the eaves: The roof drops low over the outside walls, and blown-in insulation can taper off right where the afternoon heat comes in.
- Around the hatch or pull-down stairs: The opening itself may be bare or unsealed, and the insulation beside it gets kicked aside every trip up.
- Where other crews have worked: HVAC, cable, security and solar installers walk the attic and can leave trails and flattened patches behind.
- Low spots between deeper ones: If the original blow-in went in unevenly, some bays end up well short of the rest.
We measure in several places, not just by the hatch, and show you where your attic falls short before we suggest any work.
Why It Matters
Why Attic Insulation in Cibolo Is About Coverage, Not Age
- 01A current energy code: Cibolo adopted the 2021 IECC through Ordinance 1475, and the city applies it to renovation and remodeling as well as new construction. For Cibolo's climate zone, the code sets R-49 for attics. R-38 also passes, but only if it blankets the entire floor at full height and reaches out over the wall top plates.
- 02The edges decide it: That R-38 option only counts when full-height insulation reaches over the top plates at the eaves. That's the same spot we check most closely in newer attics.
- 03Young housing: About 81% of Cibolo homes were built in 2000 or later, and about 44% since 2010. For most of these attics, the question is depth and coverage, not removal.
- 04Hot, humid air: Cibolo is in Climate Zone 2A. Warm, damp attic air slips through unsealed gaps around fixtures and wiring, which is why sealing comes before new insulation.
Edges decide it
Full height over top plates
Young housing stock
~81% since 2000
Hot, humid air
Seal then insulate
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024).
How It Works
How Insulation Installation Works for Your Cibolo Attic
Measure the whole floor
We check depth in several spots, including the eaves and around the hatch.
Walk you through it
You see where the attic is short and which fixes we'd recommend.
Price it line by line
Sealing, removal and new insulation each get their own price on the quote.
Seal, then fill
We close the gaps, keep the soffit vents clear and blow insulation to an even depth.
Check it together
We review the finished attic with you and leave the work area clean.
Customer Reviews
What Our Customers Say
“These guys did a great job on our attic. The crew was friendly, professional, and easy to work with and price was reasonable too. Really happy with the results and would definitely recommend them”
Alex James
via Google Maps
“Had my attic insulation done by Frank and his crew, and and tbh I’m really happy with the results and how it turns out. A day after I reached out to them Frank came out to check the attic and gave me an estimate, and just two days later, the crew was back to get the job done. The attic was really in rough shape before, but it looks so much better now. Everyone worked hard and got everything done in a timely manner. Thanks Frank, and thanks to the whole crew for the great work”
Derrick J.
via Google Maps
“Frank and his team were great to work with from start to finish. They came out to check our attic, took some pictures, and gave us an estimate pretty quickly. The following week, they returned and installed the blown-in insulation. They did a great job and cleaned up everything afterward, even the small bits left in the street. The price was reasonable, and the whole experience was smooth... Definitely recommend them!”
George M
via Google Maps
Free Estimate
Book Your Free Cibolo Attic Insulation Estimate
Let us know roughly when your home was built and which rooms feel warmest, and we'll find a time to come measure.
Free inspection, no obligation. Prefer to talk? Call (445) 270-7997.
Why Us
Why Cibolo Homeowners Call San Antonio Insulation Pros
We check the edges, not just the hatch
Depth is measured across the attic, so thin spots near the eaves don't get missed.
No upsell on a newer attic
If your insulation is already at full depth, you'll hear that from us.
Licensed and insured
Our licensed and insured crew handles every Cibolo job.
Sealing comes first
We close air leaks before adding insulation, so the new layer can do its job.
Insulation Guides
Attic Guides for Cibolo Homeowners
Short reads on the spots newer attics tend to miss.
How to Insulate an Attic Hatch or Attic Door
Why the hatch is a weak spot and how to seal and insulate it.
Read guideAttic Air Sealing and Insulation: Do You Need Both?
What sealing does that insulation can't, and the order that works.
Read guideCellulose Insulation for Attics: What Homeowners Should Know
How deep cellulose goes, how much it settles and when it fits.
Read guide
FAQ
Questions About Attic Insulation in Cibolo
Cibolo follows the 2021 IECC: R-49 in the attic, or R-38 if that layer covers every part of the floor at its full height, top plates included. We measure what you have and add enough to get there.
A young attic can still have thin edges, a bare hatch or open gaps around fixtures. We check all three before recommending more insulation.
Yes. The city says its adopted 2021 codes apply to all new construction, renovation and remodeling projects within city limits.
A little. Loose fiberglass settles about 2 to 4 percent and cellulose about 10 to 20 percent, so cellulose goes in deeper on day one to allow for it.
Yes. If most of the floor is already at depth, we top up the shallow areas and seal the gaps around them.
It's a common weak spot. Sealing around the hatch or pull-down stairs stops attic air from leaking into the hallway below, and we include it in the plan.
Yes. We work across Cibolo, including Lantana and the city's newer subdivisions.
That depends on attic size, how much insulation is up there now, and whether sealing or removal is part of the job. Your free estimate includes the full price, so you have it in hand before any work begins.