Insulation Company in Bloomington, CA
Blown in insulation is the most common call we get from Bloomington homeowners, and for good reason. Most houses here were built between the 1950s and 1980s, when attic insulation was an afterthought – a thin layer of fiberglass that has since compressed, shifted, or blown away entirely. In a climate where summer attic temperatures regularly climb past 140°F, that missing thermal barrier forces your air conditioner to fight a losing battle. We install blown in fiberglass and cellulose in Bloomington attics all year, and the transformation is immediate: rooms that hold their temperature, lower cooling bills, and an attic that finally does its job. Call us at (855) 382-3925 for a free attic assessment.
Why Bloomington Homes Are Different
Bloomington sits in the western Inland Empire, where the summer heat isn’t a season – it’s a fact of life. From June through September, daytime highs routinely exceed 100°F, and the sun beats down on low-pitch roofs that dominate the city’s housing stock. Those roofs create shallow attics with limited clearance, and by midday the temperature up there can climb past 140°F. That’s not an exaggeration; we’ve measured it with infrared thermometers on July retrofits. What it means for insulation is simple: the priority here isn’t trapping heat in winter. It’s blocking radiant heat gain in summer and keeping cooled air from escaping through the ceiling.
The housing stock itself compounds the problem. Much of Bloomington is older single-story stucco tract and owner-built homes with wood-frame construction. These houses were insulated to mid-century standards, which meant minimal, if any, attic insulation. Whatever was installed originally has settled over 40 to 70 years, losing most of its R-value. Many attics also contain dated wiring, including the occasional knob-and-tube remnant, which requires careful handling when we add blown in material on top. We work around those conditions every week in Bloomington, and we plan each job around them from the first inspection.
The other factor that shapes Bloomington insulation work is timing. Because attic temperatures get dangerously hot by late morning in summer, meaningful retrofit work needs to happen early – we schedule installs starting at dawn during peak heat months. Air sealing and topping up settled insulation are common here, because the original material often isn’t worth removing, just building up. And those Santa Ana wind events in fall? They drive dust and debris into attic spaces, which can contaminate old insulation and reduce its performance further.
Our Main Bloomington Services
Bloomington homeowners usually call us about two things: attic insulation that needs to be brought up to modern standards, and spray foam for the hardest-to-seal areas of the home. Each has its own Bloomington page with full details.
Attic Insulation in Bloomington
Attic insulation is the single highest-impact upgrade for most Bloomington homes. The attic is where heat enters in summer and where cooled air escapes year-round. In older tract homes with minimal original insulation, adding blown in fiberglass or cellulose to reach current recommended levels changes how the whole house feels. We also handle air sealing of ceiling penetrations before adding material, which matters in attics that have decades of gaps around light fixtures and wiring chases. Read the full breakdown on our Attic Insulation in Bloomington page, including local pricing and what to expect during installation.

Spray Foam Insulation in Bloomington
Spray foam solves a different set of Bloomington problems: irregular cavities, rim joists, crawlspace walls, and hard-to-reach areas where batts or blown in material won’t perform. Closed-cell foam adds structural strength and acts as an air barrier, which is valuable in older wood-frame construction with gaps and settling. In Bloomington’s shallow attics with limited clearance, spray foam can also be applied directly to the roofline to create a conditioned attic space. That approach is increasingly popular here because it keeps the entire attic out of the 140°F zone. Our Spray Foam Insulation in Bloomington page covers the full range of open-cell and closed-cell options.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Blown In Insulation in Bloomington

Blown in insulation in Bloomington is the workhorse solution for older attics with settled, underperforming material. Most homes in Bloomington were built when attic insulation meant a few inches of fiberglass batts, and decades of Inland Empire heat have flattened and degraded that material. Blown in fiberglass or cellulose can be installed directly over existing insulation – after we air seal – to bring the attic up to current standards without tearing out what’s already there. That approach is faster, less disruptive, and often the best value for Bloomington’s older housing stock. For full details on our method and materials, see our main Blown In Insulation page.
Cellulose Insulation
Signs you need it
Your attic insulation looks thin, settled, or uneven – or you can see the ceiling joists in several places and your upstairs rooms get noticeably warmer than the rest of the house by afternoon.
What it costs in Bloomington
Cellulose blow-in for a typical Bloomington attic runs $1.20 to $2.80 per square foot depending on depth needed, with most whole-attic jobs landing between $1,400 and $3,200.
How we do it
We air-seal ceiling penetrations, set depth markers on joists throughout the attic, then blow GreenFiber cellulose to the specified depth using a calibrated machine, reaching an even R-value across the full attic floor with no gaps.
Blown In Attic Insulation
Signs you need it
Your cooling bills have crept up every summer, rooms feel different temperatures even with the AC running, and the attic insulation you can see is thin or compressed.
What it costs in Bloomington
Blown in attic insulation for a standard Bloomington single-story home ranges from $1,100 to $3,500 depending on attic size, accessibility, and desired R-value.
How we do it
After an attic inspection, we seal air gaps around lights and wire penetrations, then blow loose-fill fiberglass or cellulose evenly across the attic floor to the depth needed for the target R-value.
Blown In Fiberglass Insulation
Signs you need it
Your existing attic insulation has matted down over time, leaving bare patches at the eaves and around the center of the attic where heat pours in.
What it costs in Bloomington
Blown in fiberglass attics in Bloomington typically run $1.10 to $2.40 per square foot, with most completed jobs landing between $1,200 and $3,000 depending on depth.
How we do it
We set depth rods across the attic, load the blowing machine with fiberglass from brands like CertainTeed or Johns Manville, and cover the entire attic floor to an even depth, working from the far corners back toward the access hatch.
Loose Fill Insulation
Signs you need it
Your attic has gaps and uninsulated spots – especially at the edges where the roof meets the walls – and the insulation is inconsistent in depth across the floor.
What it costs in Bloomington
Loose fill insulation in Bloomington costs $1.10 to $2.80 per square foot installed, with the final number determined by material choice, final depth, and how much prep the attic needs.
How we do it
We prep the attic by marking target depths and sealing bypasses, then use a high-output blowing machine to apply loose fill in a uniform layer that fills every irregular space, including tight corners and around framing.
What Blown In Insulation Costs in Bloomington
| Item | Typical range in Bloomington |
|---|---|
| Blown in fiberglass (attic, standard home) | $1,100 – $3,000 |
| Cellulose blow-in (attic, standard home) | $1,400 – $3,200 |
| Loose fill over existing insulation (top-up) | $900 – $2,400 |
Costs in Bloomington are pushed higher by attics with low clearance or dated wiring that slows installation, and by the need to air-seal extensively before blowing material. We give every homeowner a written upfront price before any work starts.
Is blown in insulation worth it in Bloomington’s hot climate?
Yes. Proper attic insulation is the most effective single step for reducing heat gain through the ceiling in Bloomington’s 100°F-plus summers. The cooling-load reduction is noticeable within the first summer, and it works year-round by slowing heat transfer both directions.
Can you blow insulation over old attic insulation in Bloomington?
In most Bloomington homes, yes – we blow new material directly over existing settled insulation after air sealing. That approach saves the cost and mess of removal and brings the attic to current recommended levels. Call us at (855) 382-3925 to see if your attic qualifies.
Brands We Service in Bloomington
We install blown in insulation from GreenFiber and CertainTeed in Bloomington, plus spray foam systems from Icynene and Demilec for homes that need an air-sealed approach. These brands are vetted and performance-tested, and we stock their materials locally for fast turnaround on Bloomington jobs. Learn more about our full range of our brands.
Pricing for Insulation Company in Bloomington, CA
| Service | Typical range in Bloomington |
|---|---|
| Attic insulation (air seal + blown in) | $1,100 – $3,500 |
| Spray foam insulation | $2,200 – $7,500 |
| Blown in fiberglass | $1,100 – $3,000 |
| Blown in cellulose | $1,400 – $3,200 |
| Loose fill insulation | $900 – $2,400 |
| Air sealing only | $350 – $1,000 |
Prices in Bloomington are pushed up by attics with low clearance, old wiring that needs protection during install, and homes that need extensive air sealing before insulation goes in. We quote a fixed price after the attic inspection, and that number doesn’t change at the end of the job.
Neighborhoods We Serve in Bloomington
We cover all of Bloomington’s 92316 zip code, including the older tract neighborhoods near the railroad corridor and the mixed residential streets around the city’s commercial core. Response time for most Bloomington attic inspections is within two business days, and we schedule summer installs early morning to beat the attic heat.
- West Bloomington tract homes
- Homes near Bloomington High School
- North Bloomington residential streets
- Streets along the 10 Freeway corridor
- South Bloomington near the Santa Ana River wash
Service Area – Cities Near Bloomington
Beyond Bloomington, we serve the wider western Inland Empire, including Fontana, CA, Rialto, CA, Glen Avon, CA, and Pedley, CA. If you’re in one of these nearby cities and need attic insulation, spray foam, or blown in work, the same team and pricing apply, and we schedule across the area every week.
Serving Bloomington, CA — Our Local Coverage Area
We’re based in the Bloomington area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Insulation Company in Bloomington
We can usually schedule a Bloomington attic inspection within two business days. For urgent situations – like exposed wiring in an uninsulated attic or a rodent-damaged insulation problem – call us and we’ll do our best to get there sooner.
Most straightforward attic insulation retrofits in Bloomington do not require a permit. If your project involves structural changes or extensive air sealing of the building envelope, we’ll advise you on whether any local filing applies before work begins.
Yes. Many Bloomington attics contain older wiring, and we treat it with care: we don’t bury knob-and-tube circuits under insulation, and we’ll coordinate with an electrician if we find anything that needs repair before insulation is installed.
If your Bloomington attic hasn’t been touched in decades, you’re paying for it every summer. Call Cozy Insulation Co at (855) 382-3925 for a free attic assessment and a fixed-price quote. We’ll tell you exactly what you need, what it will cost, and how much of a difference it will make before we ever start the job.
What happens when you call
- 1A real person answersNo phone trees — talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Bloomington Customers Say
"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Miguel Guzman"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Jason Hoffman"Attic was at maybe R-11 from the 1970s and blown in over the top would have just buried the problem. They removed the old material, air sealed the top plates and penetrations first, then blew in to R-49. The upstairs is a completely different house in August."
— Colleen Vaughn