Insulation Company in Compton, CA
Blown in insulation is the most common fix we install in Compton, and it’s rarely because homeowners planned it that way. Most of the housing stock here went up between 1945 and 1965, when builders stuffed attics with whatever batts were cheap, then called it done. Sixty years later, that material has settled, compressed, and in some cases rotted from marine-layer moisture. If your energy bills climb every August and your bedrooms never quite cool down, the problem usually isn’t your HVAC system – it’s what the original builder left in your attic. Airtight Insulation Co has served Compton since 2011, and we stock eight insulation brands so the recommendation matches the house, not the truck. Call (833) 390-7079 for a free estimate.
Why Compton Homes Are Different
Compton’s housing stock tells a specific story. The postwar boom built single-story stucco-on-wood-frame tract homes for aircraft and defense workers, and those homes share the same bones: low-pitch roofs, detached garages, small attics, and walls that were insulated with whatever was available at the time. A technician walking through the 90222 and 90223 ZIP codes will find original rock wool batts crumbling to dust, fiberglass compressed under decades of re-roofing, and in some cases old newspaper-based fill that now does almost nothing. The re-stucco and re-roof cycles matter more than people think. Each added layer has squeezed the original insulation flat, and in a low-pitch attic there’s no room to crawl over and inspect it. What reads as “insulated” on paper is often just a few inches of dead material sitting at the bottom of the cavity.
The climate adds a second problem that inland cities don’t face. Compton’s persistent morning marine layer pushes moisture into attic spaces, and when that moisture meets a hot August roof deck, condensation forms on the underside of the sheathing. That’s how you get mold, warped decking, and batts that sag into uselessness. The real enemy in Compton isn’t cold weather. It’s radiant heat gain through under-insulated, under-ventilated roof assemblies, paired with moisture that never fully dries out. The fix requires thinking about air movement as much as R-value. Seal it, not just fill it. That’s the standard we work to.
Our Main Compton Services
The two calls we get most often in Compton are for attic insulation that has failed and for spray foam in homes where owners want to stop air leakage at the source. Each has its own page below.
Attic Insulation in Compton
Most Compton attics we inspect were insulated once, decades ago, and never touched again. The original batts have settled under re-roofing layers and the result is an R-value on paper that doesn’t exist in practice. We pull samples, measure the actual depth, and build the attic back to what it should be using fiberglass or mineral wool from Owens Corning, Johns Manville, Knauf, Rockwool, or CertainTeed. The low-pitch roof lines here mean we often work in tighter spaces than a standard suburban attic, and we plan the job around that. Learn more on our Attic Insulation in Compton page.
Spray Foam Insulation in Compton
For Compton homes with unvented attic space, a remodeled room, or a persistent draft problem, spray foam is often the right tool. We install both open-cell and closed-cell formulations through Icynene and Demilec, which means we can match the foam to the actual problem – air sealing a rim joist, creating a thermal boundary under a low-pitch roof, or air-sealing a crawlspace against the marine layer. Closed-cell foam adds structural rigidity and acts as a vapor barrier, which matters when moisture is the enemy. Read more on our Spray Foam Insulation in Compton page.
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 Compton
Blown in insulation in Compton addresses a very specific problem: postwar attics that were insulated once, badly, and have since settled into a fraction of their original depth. In the older tracts, we regularly pull samples showing 30 to 40 percent of the labeled depth gone. The “insulated” attic is effectively uninsulated, and the homeowner is paying for it every month. Blown-in is also the most practical method for Compton’s low-pitch, hard-to-reach attics, because the material flows into the cavity from a hose and fills voids that batts would never reach. We let the job pick the product, and in Compton that is frequently loose-fill cellulose from GreenFiber or blown fiberglass from Owens Corning. For a broader look at the service, see Blown In Insulation.
Cellulose Insulation
Signs you need it
Your attic has thin, patchy, or settled insulation, and your upstairs rooms spike in temperature every afternoon while the AC runs nonstop.
What it costs in Compton
Blown-in cellulose in a typical Compton attic runs $1.20 to $2.80 per square foot installed, depending on depth and access.
How we do it
We remove or correct existing material, seal the air leaks, then blow GreenFiber cellulose to the target depth across the entire attic floor.
Blown In Attic Insulation
Signs you need it
Your attic has visible gaps in coverage, the existing batts are compressed or stained, and the house feels drafty even with windows closed.
What it costs in Compton
Blown-in attic insulation in Compton typically falls between $1.80 and $3.50 per square foot, with low-pitch access sometimes adding labor.
How we do it
We measure the actual installed depth, remove moisture-damaged material, treat the attic floor for air movement, then blow to the specified R-value.
Blown In Cellulose Insulation
Signs you need it
The existing attic fill has dropped several inches below the joist tops, and a simple ruler test shows less than half the rated depth remaining.
What it costs in Compton
Expect $1.20 to $2.80 per square foot for blown-in cellulose in Compton, with older attics and tight access at the higher end.
How we do it
We test for existing moisture, address any ventilation deficiencies, then blow recycled-content GreenFiber cellulose to a uniform, measured depth.
Blown In Fiberglass Insulation
Signs you need it
Your attic was originally insulated with thin fiberglass batts that have flattened or shifted, leaving large gaps over bedrooms and living areas.
What it costs in Compton
Blown-in fiberglass in Compton runs $1.50 to $3.00 per square foot installed, depending on target R-value and attic accessibility.
How we do it
We clear the attic floor, seal penetration points, then blow Owens Corning fiberglass to an even depth with measured density.
Loose Fill Insulation
Signs you need it
The attic has irregular bays, odd framing, or areas that batts don’t fit – and the existing fill has settled into valleys and left joist tops exposed.
What it costs in Compton
Loose fill insulation in Compton is priced between $1.20 and $3.50 per square foot, with the material choice and target depth driving the final number.
How we do it
We select the appropriate loose-fill material, prep the attic for even distribution, and blow it to a verified depth across every bay.
What Blown In Insulation Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Blown-in cellulose (installed) | $1.20 – $2.80 per sq ft |
| Blown-in fiberglass (installed) | $1.50 – $3.00 per sq ft |
| Blown-in attic insulation (full job) | $1.80 – $3.50 per sq ft |
Is blown in insulation worth it for a Compton house?
Yes. It is the fastest way to bring a settled postwar attic back to a real R-value without tearing open walls or replacing the roof. The payback shows up in the first full summer.
Can you blow insulation over old batts?
Only if the existing batts are dry, uncompressed, and not blocking ventilation. In most Compton attics we remove or correct the old material first, then treat the space properly. Call (833) 390-7079 to have it checked.
Brands We Service in Compton
We stock and install products from Demilec, GreenFiber, Owens Corning, and Johns Manville, which means each Compton job gets the right material rather than whatever a single-brand installer has available. Most materials are available within a day or two for local projects. See our brands for the full manufacturer list.
Pricing for Insulation Company in Compton, CA
| Service | Typical range in Compton |
|---|---|
| Attic insulation (remove and replace) | $2.00 – $4.50 per sq ft |
| Attic insulation (new build or empty attic) | $1.50 – $3.00 per sq ft |
| Attic insulation air sealing | $400 – $1,200 per project |
| Spray foam insulation (open-cell) | $1.20 – $2.80 per board ft |
| Spray foam insulation (closed-cell) | $2.00 – $4.50 per board ft |
| Closed-cell spray foam (rim joist / band joist) | $3.00 – $5.00 per board ft |
| Blown-in cellulose | $1.20 – $2.80 per sq ft |
| Blown-in fiberglass | $1.50 – $3.00 per sq ft |
| Blown-in attic insulation (full job) | $1.80 – $3.50 per sq ft |
In Compton, the two things that push price up are tight attic access from low-pitch roofs and the need to remove old, moisture-damaged material before new insulation goes in. We price every job upfront and do not change the number unless the scope itself changes. Performance you can feel – that’s what you’re paying for.
Neighborhoods We Serve in Compton
Airtight Insulation Co covers the full city of Compton, including the residential tracts that span the 90220, 90221, 90222, 90223 and 90224 ZIP codes. We are in this area several days a week and can typically schedule a consultation within one to two business days depending on where you are.
- Sunny Cove
- Richland Farms
- Leland
- Downtown Compton
- Carson-Gardena border area
Service Area – Cities Near Compton
Our insulation work regularly takes us into the neighboring communities of East Rancho Dominguez, CA and West Rancho Dominguez, CA, along with Carson, CA and Gardena, CA. The housing stock in these adjacent cities is similar to Compton’s, which means the same insulation problems show up and we already know how to fix them.
Serving Compton, CA — Our Local Coverage Area
We’re based in the Compton 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 Compton
Most Compton homeowners can get a consultation within one to two business days, and installation often happens within the same week if the material is in stock. Emergency spray foam and air sealing jobs can sometimes be scheduled sooner. Call (833) 390-7079 to check current availability.
Most insulation replacement does not require a permit in Compton, but some spray foam applications tied to structural changes or additions might. We handle the permit check as part of the estimate process and will tell you upfront if one is needed.
We install insulation in 90222, 90223, 90224 and 90220, which covers the main residential neighborhoods of Compton. If you are on the edge of the city, call (833) 390-7079 and we’ll confirm your address.
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 Compton Customers Say
"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Steve Ziegler"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."
— Claudia Morales"He did a blower door test before and after and gave me the numbers. I like being able to see the difference rather than being told about it."
— Simone Grant