Insulation Company in Commerce, CA
Blown in insulation is the retrofit workhorse for Commerce homes, and for good reason. The city’s compact, mid-century stucco houses were built when energy was cheap and attic insulation was an afterthought, which means many of them still have the original thin layer or none at all. Cozy Insulation Co has served Commerce since 2011, matching older homes with blown-in fiberglass and cellulose that fills wall cavities and attic floors without tearing open finished surfaces. Call (855) 382-3925 for a free estimate and we’ll tell you exactly what your attic actually needs.
Why Commerce Homes Are Different
Commerce sits in the hot, dry Los Angeles Basin where the 5 and 710 freeways wrap the city like a pair of parentheses. The housing stock is overwhelmingly single-story stucco tract homes from the 1940s through 1970s, built on small lots and fully built out, so almost every insulation job here is a retrofit, not new construction. Those original attics often have a whisper of old batt insulation, compacted and dusty, while the walls and ductwork have never been touched. Summer heat pushes attic temperatures past 140 degrees on the worst days, and that heat bleeds down through ceilings, forcing air conditioners to run longer than they should. There’s also a secondary condition most cities don’t deal with: freeway soot and diesel particulates from the surrounding warehousing and trucking corridors settle into attics and ductwork over decades, fouling old insulation and reducing its performance. A home near Eastern Avenue or Bandini Boulevard simply carries more of that particulate load than a house in a quieter part of the county. Our techs see it on every attic inspection: gray-black dust that tells you the insulation has been filtering freeway air for twenty years. That’s a Commerce-specific reason to pull out the old material and blow in fresh coverage rather than layering on top of it.
Our Main Commerce Services
Most Commerce homeowners call us about two things: attics that bake in summer and drafty rooms that never hold a consistent temperature. Here’s how each one works here.
Attic Insulation in Commerce
Attic work in Commerce usually means going into a low, cramped attic space above a 1950s or 1960s stucco home, pulling out compacted or rat-fouled fiberglass, air-sealing the ceiling plane, and installing new material at a depth that actually matches the climate. The freeway particulate factor means many attics need a full removal rather than a top-off, because blowing over degraded material just buries the problem. We inspect first, tell you honestly whether removal is necessary, and then install the right insulation for your ceiling assembly. Attic Insulation in Commerce covers the full scope, including air-sealing and ventilation checks.

Spray Foam Insulation in Commerce
Spray foam earns its keep in Commerce when a homeowner wants air-sealing and insulation in one step, especially in attics with ductwork running through them or walls that have never been insulated. Closed-cell foam from Demilec also adds structural rigidity and acts as a vapor barrier, which matters in a basin climate with cool, damp winters and brutally dry summers. Because foam fills cracks and gaps rather than just covering them, it’s a strong answer for homes near freeway corridors where air infiltration carries soot indoors. Spray Foam Insulation in Commerce explains the material options and how we decide between open and closed cell.

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 Commerce

Blown in insulation solves the core problem in Commerce: older homes with original or compacted attic insulation that no longer slows summer heat. Because the city’s housing stock runs from the 1940s to the 1970s, very few attics have enough coverage, and most have none in the walls at all. We blow loose-fill fiberglass or GreenFiber cellulose into attics, wall cavities, and hard-to-reach spots without tearing out drywall, which keeps a week-long project to a single day in most cases. Learn more about the material options on our Blown In Insulation page.
Cellulose Insulation
Signs you need it
Rooms directly under the attic run noticeably hotter than the rest of the house on summer afternoons, and you can see bare joists or dusty, settled material when you peek through the hatch.
What it costs in Commerce
Blown-in cellulose in a Commerce attic typically runs $1.20 to $2.00 per square foot installed, depending on depth and whether we’re removing old material first.
How we do it
We remove any compromised old material, seal air leaks at the ceiling plane, and blow GreenFiber cellulose to the target depth for the basin climate, using a dense-pack method in walls where needed.
Blown In Attic Insulation
Signs you need it
Your air conditioner cycles longer than it used to, upstairs or ceiling-adjacent rooms never quite cool down, and a look in the attic shows less than six inches of old, flattened insulation.
What it costs in Commerce
For a typical 1,000 to 1,200 square foot Commerce ranch home, blown-in attic insulation runs $1,200 to $2,200 total, with full removal and air-sealing at the higher end.
How we do it
We blow loose-fill fiberglass or cellulose across the full attic floor to an even depth, using depth markers so the coverage is consistent corner to corner, then re-check that soffit vents stay clear.
What Blown In Insulation Costs in Commerce
| Item | Typical range in Commerce |
|---|---|
| Blown-in fiberglass (attic, standard depth) | $0.90 – $1.50 per sq ft |
| Blown-in cellulose (attic, standard depth) | $1.20 – $2.00 per sq ft |
| Wall cavity dense-pack (per wall section) | $2.50 – $4.00 per sq ft of wall area |
Two things push prices up in Commerce: full removal of particulate-fouled old insulation, and dense-packing walls in homes where the stucco exterior makes drilling access points more labor-intensive. The good news is that our quotes are itemized before work begins, so you know exactly what the removal, sealing, and new material will cost. Call (855) 382-3925 and we’ll walk through the numbers for your specific attic.
Is blown in insulation worth it for an older Commerce home?
Almost always yes. The mid-century homes here were built with minimal attic insulation, so bringing coverage up to a proper depth is one of the few upgrades that pays back through lower cooling bills every summer. If the old material is heavily soiled from freeway particulates, full removal plus new blown-in material delivers the most noticeable improvement.
How long does blown in insulation take in Commerce?
Most attic-only jobs are done in one day, including removal if needed. Dense-packing wall cavities adds a half day or more depending on how many exterior drill points and patched areas are involved. Give us a call at (855) 382-3925 and we’ll give you a realistic time window for your home.
Brands We Service in Commerce
Cozy Insulation Co installs insulation from eight vetted manufacturers, and on Commerce jobs we most often run GreenFiber cellulose for attic blow-ins, Owens Corning and Johns Manville fiberglass where batt or loose-fill makes sense, and Demilec spray foam for air-seal-critical applications. We stock the common material locally and can have specialty products on site within a few days. Learn more about our brands and what each one does best.
Pricing for Insulation Company in Commerce, CA
| Service | Typical range in Commerce |
|---|---|
| Blown-in fiberglass attic insulation | $0.90 – $1.50 per sq ft |
| Blown-in cellulose attic insulation | $1.20 – $2.00 per sq ft |
| Wall cavity dense-pack insulation | $2.50 – $4.00 per sq ft of wall area |
| Attic air-sealing before insulation | $900 – $1,800 per attic |
| Old insulation removal (fouled or compacted) | $1.50 – $3.00 per sq ft |
| Attic insulation upgrade (full job) | $2,800 – $6,500 per home |
| Wall insulation retrofit (per wall section) | $1,800 – $4,200 per section |
| Sealed attic system (air seal + insulation + ventilation) | $3,500 – $8,000 per home |
| Open-cell spray foam (roofline or attic floor) | $1.80 – $3.30 per board ft |
| Closed-cell spray foam (walls, roof decks, rim joists) | $2.80 – $5.00 per board ft |
| Crawl space encapsulation with spray foam | $4,500 – $11,000 per home |
| Duct insulation replacement | $3,900 – $10,000 per duct system |
The two things that move a Commerce quote most are whether your old attic insulation needs full removal and whether wall or ductwork retrofits are part of the scope. We give an itemized, upfront price before any work starts, so the number we quote is the number you approve. Call (855) 382-3925 for a free estimate that accounts for your home’s actual condition, not a generic square-footage guess.
Neighborhoods We Serve in Commerce
Commerce is small and compact, which means we reach every corner of the city quickly from our local operation. Jobs near the 5 and 710 corridors tend to need more thorough cleaning and removal work due to particulate buildup, while homes tucked off the main industrial stretches often need simpler attic top-offs. We typically schedule most Commerce insulation jobs within a few business days, and same-week appointments are common.
- Bandini
- Commerce Casino area
- East Commerce
- Near Citadel Outlets
- Rosewood Park
Service Area – Cities Near Commerce
Cozy Insulation Co serves Commerce and the surrounding southeast Los Angeles County communities, including Maywood, CA, Bell, CA, Cudahy, CA, and Bell Gardens, CA. If you’re in one of these neighboring cities with a drafty attic or under-insulated walls, the same crew and the same eight-brand material lineup are available to you. Give us a call and we’ll confirm the next available appointment for your area.
Serving Commerce, CA — Our Local Coverage Area
We’re based in the Commerce 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 Commerce
Yes. While our core work is residential, Commerce’s heavy warehouse and manufacturing presence means we regularly handle light-commercial insulation, including thermal wraps on process piping, rooftop ductwork insulation, and large open-bay attic spaces. The same material expertise applies, just at a larger scale. Call (855) 382-3925 and describe your building.
In most weeks we can schedule a Commerce insulation job within two to five business days, and same-week appointments are common during spring and fall. Summer fills up faster, so if you’re feeling the attic heat now, call (855) 382-3925 and we’ll find the earliest slot that works.
It depends on what’s in your attic. If the existing insulation is loose and relatively clean, blowing over it can work fine. But many Commerce attics show heavy soot and diesel particulate accumulation from freeway and industrial exposure, and in those cases removal is the better long-term call rather than burying degraded material.
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 Commerce Customers Say
"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"Work is good and the house is noticeably more comfortable. There was insulation debris left in the hall closet under the attic access that I had to clean up."
— Amanda Sullivan"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Miguel Guzman