As a locally based insulation Houston homeowners trust, we inspect your attic first. You get a real look and a real price before anyone touches your house, not just a guess over the phone. Our crew works on homes across Houston and the surrounding communities and finishes most jobs, spray foam or blown-in insulation, in a single day. If your old insulation has failed, our attic insulation installers take it out. Then they seal the gaps letting heat in and bring your attic up to the R-value Houston homes need.
4.8 · 221 reviews Licensed & insured Local Houston crew
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Not sure what you need? That is normal. Tell us what you are seeing. We call back with plain answers, no jargon, no pressure to sign.
In 2026, attic insulation Houston TX typically costs $0.95 to $1.55 per square foot for blown-in and $1.50 to $3.25 per square foot for spray foam. For a 2,000 sq ft attic, that is about $1,900 to $3,100 for blown-in and $3,000 to $6,500 for spray foam.
Blown-in costs less because it goes across the attic floor, usually to R-38 to R-60, the target range for Houston's climate zone. Spray foam costs more because it is applied to the underside of the roof deck, sealing air leaks as it insulates. Removing old, failed, or rodent-damaged insulation before either job adds to the price.
We can give you a starting price over the phone, but the real number comes after we see your attic in person. Our crew comes out, walks the attic, checks your current insulation depth, and looks for rodent damage or water stains before writing anything down. You get an itemized quote on paper, no upselling and no pressure to sign anything that day. Use our cost calculator to get a starting estimate, then book the free attic inspection to get the exact price for your house.
| Service | Average Cost (per sq ft installed) | Best Suited For |
|---|---|---|
| Blown-In Insulation | $0.95 to $1.55 | Attic floors that are thin, compressed, or bare |
| Spray Foam Insulation | $1.50 to $3.25 | Roof deck sealing, ducts or equipment in the attic, humid attics |
| Injection Foam Insulation | $2.10 to $4.20 | Empty wall cavities in older homes, no drywall removal |
| Air Sealing | $0.65 to $1.35 | Can lights, duct boots, and the hatch before adding depth |
| Attic Fan & Ventilation | Priced per unit; quoted on site | Attics that still run hot after insulation and sealing |
Most calls start the same way: a hot upstairs, a musty attic, and an electric bill that keeps rising every summer. Here are the attic insulation services, among other Houston insulation services, we install to bring that bill back down.
Closed-cell foam at the roofline for attics with ducts or equipment up top, humid air, or rooms that stay warm unevenly. It seals the roof deck and stops air movement in one continuous layer, preventing heat transfer and lowering energy costs, bringing the attic into the insulated part of your home. Open-cell spray foam installation costs less and works well for some interior wall applications. If you are comparing spray foam Houston installers or other spray foam insulation contractors Houston homeowners call, ask to see the roof deck sealed in person before you sign.
Loose fill fiberglass added where the attic floor has settled or gone thin. As a Houston fiberglass attic insulation contractor, we blow to R-38 through R-60 depending on your starting depth, whether that means new insulation in a bare attic or topping off what is already there. We are the blown in insulation Houston homeowners call most often for a simple depth top-off.
Warehouses, metal buildings, and offices lose conditioned air the same way homes do, just at a bigger scale. We insulate roof decks, metal panel walls, and mechanical rooms with spray foam or blown-in fill sized to the structure, and scope the job around your business hours so operations keep running. As a commercial insulation contractor serving Greater Houston, our commercial insulation services cover warehouses, offices, and metal buildings alike. See our warehouse insulation retrofit guide → for humidity-specific options.
Foam injected through small exterior access holes fills empty wall cavities in older Houston-area homes. No drywall demolition needed.
Injection Foam Details →
We seal can lights, the attic hatch, and duct boots before adding depth, so hot attic air stops getting pulled into the house when the AC runs. Sealing those paths also improves indoor air quality by stopping dust and humid attic air from entering living space, and improves energy efficiency sooner than depth alone.
Air Sealing Details →
For attics that still run hot after insulation and sealing. We check soffit intake before recommending a fan, since a fan without enough intake can pull conditioned air out of the house instead of hot attic air out. A reflective radiant barrier at the roof deck is sometimes added for extra heat control.
Attic Fan Details →
For attics with wet, moldy, rodent-damaged, or heavily compressed insulation. We carefully extract old material into heavy-duty disposal bags, clear joists for air sealing, and install fresh, high-performance insulation to modern standards. Whether it's attic insulation repair or a full tear-out, we match the fix to what we find.
Removal & Replacement Details →Not sure which service fits? Match My Attic to the Right Service
The bedroom upstairs still feels warm at ten o’clock, even after you drop the thermostat to 68°F. If upstairs rooms run 4 to 5°F warmer than downstairs by mid afternoon, or your AC is still running after sunset in July, the attic is likely passing heat down into the house. On August walkthroughs we regularly read 130 to 145°F at the roof deck, and thin insulation lets that heat settle onto your ceilings.
If your attic insulation has never been checked or topped off, get a free depth check before it costs you another summer of high bills.
See the full signs checklist for Houston homes →
Get My Attic's Depth Checked Or call now: 409-316-9957
Most calls fall into one of three categories, and knowing which one fits your house before we arrive means the walkthrough moves faster.
Not sure which one describes your attic? That is normal. Tell us what you are seeing and we will figure out the rest on the walkthrough.
Old insulation should come out when it is contaminated: rodent droppings or nesting, water damage from a roof leak, or mold. That applies whether the existing material is fiberglass or older cellulose from a previous install. If it is simply settled and still clean and dry, adding a new layer on top usually works, once any leak or moisture problem is fixed.
Representative jobs from the Houston area. Every attic and wall cavity starts different, so your results depend on your home's current insulation, size, and access. What you see here is the actual work our crew completed on that job.
Southeast Houston · Blown-In Attic Insulation
Before
After
Six inches of fiberglass looked fine from the hatch but had compressed to almost nothing over the rooms that stayed hot, with some spots down under 3 to 4 inches. We sealed the can lights and attic hatch first, since sealing before adding depth keeps new insulation from settling right back into the same air leaks, then blew fiberglass back to R-49, about 16 to 18 inches, across the attic floor.
Greater Houston · Closed-Cell Spray Foam
Before
After
This metal building's roof deck and walls were bare, losing conditioned air straight through the metal panels and taking on the humidity that comes with being this close to the Houston Ship Channel. We sprayed closed-cell foam across the roof deck and wall interior in a single day, creating one continuous air, thermal, and vapor barrier that also helps block industrial dust and reinforce the structure against high wind.
Find Out Which Fix My Attic Needs Or call now: 409-316-9957
Most homeowners never see their own attic, which makes insulation easy to oversell. At USA Insulation Houston, a Houston insulation company that measures before quoting, no quote gets written until we have measured your attic ourselves. We explain what we found in plain language and put the plan and price in writing before any work begins.
A free attic walkthrough covers more than depth. We look at the insulation material itself and how evenly it sits, check where ducts and attic equipment sit in relation to the insulation, and look at soffit and ridge vents to see whether air can move through them, since a blocked vent undoes what insulation and sealing are supposed to fix.
Before the crew leaves, we walk through the finished work with you and clean up after ourselves. You will not have to wonder whether the job matches your quote, or find insulation scraps around your home a week later. It is a small thing, but it is part of what homeowners tell us makes us the best insulation company in Houston for the job.
A finished job means more than insulation in place. It means your home looks the way it did before we arrived, and you know exactly what was done.
We show you the finished work and check it against your signed quote.
We clear debris from the attic hatch, sweep the work area, and take the packaging with us.
If anything does not match your quote, call us and we will make it right.
If you have a question later, call us and we will go over your quote and notes with you.
Most insulation brands you see advertised are also multi-location franchises. Here is how our Pasadena-based crew compares on the things that actually affect your job.
| Factor | Typical National Insulation Franchise | USA Insulation of SE Houston |
|---|---|---|
| Pricing | Broad published range, roughly $800 to $9,000 per project, varies by location | $0.95 to $4.20 per sq ft by service, itemized quote before you sign |
| Install crew | Quality and consistency vary franchise to franchise | Same Pasadena-based crew on every job, not a rotating subcontractor pool |
| Product line | Multi-brand materials from various manufacturers | Proprietary USA Premium Foam®, one national manufacturing spec since 1985 |
| Warranty | Advertised “lifetime” coverage, terms vary by location and material | Written, scope-specific warranty terms listed on your quote |
| Local accountability | Independently owned, territory-dependent track record | Pasadena franchise, locally owned since 2023, same office you call back |
| Track record | Newer to the category | National brand since 1985, 150,000+ homes insulated, 4.8★ / 221 Google reviews |
Comparison reflects publicly available franchise industry data as of 2026; figures vary by location and are not specific to any single competitor. See our own cost calculator for a price range on your home.
Free inspection. No obligation. Same-week scheduling across SE Houston.
Or call: 409-316-9957
Blown-in fiberglass settles and compresses rather than wearing out, and most homeowners notice a comfort difference within the first week of a new install. Here is what determines how long it lasts and how soon results show up in your house.
Blown-in fiberglass can last many years, but it thins out over time. It does not wear out like a filter. It settles and compresses, so the material is still there, just thinner. In the Houston attics we walk, we often find four to eight inches of settled fiberglass over the rooms that stay warm.
Three things make this happen faster: a roof leak that goes unnoticed for months, rodents nesting in the insulation, and years of foot traffic on the same path to the storage boxes.
A common rule of thumb is to have fiberglass checked after 15 to 20 years. If your attic has not been checked in that long, a free attic inspection will show you whether adding more blown-in insulation is enough, or whether sealing or repairs need to come first.
Most homeowners notice a difference within the first week. Blown-in insulation starts slowing heat as soon as it is in place, and there is nothing to cure or wait for. The first changes are usually cooler upstairs rooms in the afternoon and a shorter AC run time in the evening. Results vary by house, depending on what was causing the heat problem.
A Houston home loses its cool air two ways: heat moving through under-insulated surfaces, and air moving through gaps. The attic usually takes the brunt of it, since a sun-baked roof deck runs far hotter than the air outside and transfers that heat straight through the ceiling. Walls add to the load too, especially on older homes where the cavities were never insulated to begin with. Windows, doors, and duct leaks account for most of what is left.
Houston's cooling season runs from April through October in most years, so an attic problem has seven months to add up before the weather cools. Any unsealed gap in the ceiling gives that heat a direct path into the rooms below while the AC runs. Many older Houston homes were built with less insulation than today's energy code requires, and years of settling have thinned what was installed.
Each fix does a different job:
Authentic reviews from verified Google Maps customers across Greater Houston and surrounding communities.
Paula Wimberly
Excellent customer service. They answered my questions clearly and made the whole process easy.The team was on time did a walk through with me and did exactly what they said they would do. I would definitely recommend this business. The staff was kind,professional, and easy to work with. Lee made sure everything was done exactly the way I wanted! The quote i received was lower then the others. Great price and excellent quality
"Paula Wimberly, we're really thankful you took the time to share your thoughts! We're happy our team was able to meet your expectations and get everything done just the way you wanted. And getting you a lower quote without compromising on quality—that's exactly what we aim for at USA Insulation Houston!"
Here are answers to common questions about attic insulation in Houston. They cover which type fits your attic, how much insulation you need (called R-value), and whether a fan or a DIY job makes sense. The answers are based on what we find in Houston attics.
It is usually a mix of things. Heat rises, so upstairs starts out warmer, and a hot attic pressing down through thin or leaky insulation makes it worse. If your ducts run through that same attic, they can pick up extra heat before the cool air ever reaches your vents. A free visit tells you which of these is doing the most damage in your house.
Two main types cover the attics we work on: blown-in fiberglass and spray foam. Blown-in fiberglass adds depth to the attic floor and works well once the ceiling plane is sealed. Spray foam goes on the roof deck instead and handles leaks and humidity in the same step. We recommend a type based on what we measure on site, not a default answer.
R-38 minimum for our climate zone, which is about 12 to 14 inches of blown fiberglass (approximate; varies by product and settling). Many Houston homeowners target R-49 (about 16 to 18 inches) to R-60 (about 20 to 22 inches) for real summer comfort, since local attics run hotter and longer than the code minimum was written for.
Sometimes. An attic fan only helps when there is enough intake air, usually at the soffits, and the insulation underneath is in decent shape. Without enough intake, a fan can pull air-conditioned air from the house instead of hot air from the attic. We check that balance before recommending attic fan installation.
For a small top off, maybe. For a full attic, the real obstacle is not skill, it is the space itself. Houston attics regularly reach 130 to 145°F in summer, which is a heat safety issue before it is a technique issue. Most of the DIY jobs we get called to fix later had uneven coverage from someone who could not stay up there long enough to finish evenly.
Past R-49 to R-60, the payback slows down fast. The gap between R-49 and R-60 matters far less than the gap between R-13 and R-38. At that point, air sealing and duct condition usually matter more than a few extra inches.
When comparing attic insulation companies Houston homeowners consider, verify that the contractor has a local headquarters, uses in-house certified installer crews, and provides free on-site attic assessments rather than flat online quotes. USA Insulation of SE Houston operates from our headquarters at 3321 Westside Dr in Pasadena, dispatching certified teams across 28 Houston communities to install Climate Zone 2 compliant blown virgin fiberglass, closed-cell spray foam, and wall injection foam. See our full guide to choosing an attic insulation contractor →
Get My Questions Answered on a Free Visit Or call now: 409-316-9957
We're actively serving SE Houston and the Galveston Bay corridor today, with the rest of Greater Houston coming online as we grow.
Now serving · 24 cities
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USA Insulation Houston is based in Pasadena, near the San Jacinto Monument and the Houston Ship Channel. We serve 28 cities and communities across Greater Houston, including Katy, Fulshear, and Cypress in West Houston, Clear Lake and Nassau Bay near Space Center Houston, and the Bay Area corridor down to Galveston Island.
You do not need a perfect description of the problem. Tell us what life feels like in the house: hot upstairs, AC that never rests, a musty attic, a bill that jumped. We handle the technical part during a free visit.
What happens next: We call back within two business hours, schedule a visit, check the attic in person, and email or hand you a written quote. You decide if and when to move forward.
Same local crew from first call through install, serving Pasadena and the Greater Houston area. Questions welcome; that is what the visit is for.
