Fast, Reliable Spray Foam Insulation Across Inglewood
Spray foam insulation in Inglewood typically runs $2.50 to $6.75 per board foot installed, with most whole-attic closed-cell jobs landing between $4,800 and $11,500 depending on square footage and access. We’re in Inglewood regularly, and we know the housing stock here well: 1920s-to-1960s wood-frame bungalows and small stucco apartment buildings, many with uninsulated stud bays and single-pane windows. If you’re tired of top-floor heat, high SCE bills, or jet noise rolling through your ceiling, call Porch Light Insulation at (877) 521-4987 for a straight answer and a free estimate.
Key Takeaways
- Closed-cell spray foam in Inglewood doubles as acoustic dampening near the LAX approach path, not just thermal insulation.
- Open-cell runs $2.50 – $4.25 per board foot; closed-cell runs $4.25 – $6.75 per board foot installed.
- Older Inglewood homes with knob-and-tube wiring need a wiring check before any foam is sprayed into wall bays.
- Porch Light Insulation is an insulation-only contractor, not a generalist; every quote is material-matched to your home.
- We carry eight manufacturers including Icynene, Demilec, and Owens Corning so the spec fits the problem.
Why Porch Light Insulation Is Inglewood’s Preferred Spray Foam Insulation Company
Insulation is all we do. That matters in Inglewood because the homes here aren’t simple. A 1940s bungalow with plaster-and-lath walls, knob-and-tube wiring, and a ceiling that bakes in summer while jets drone overhead isn’t a one-product job. Our estimators and installers think in building-science terms: air sealing, vapor control, acoustic performance, R-value. We match the material to your home, not to our inventory.
Gil Tanner leads our team, and he’s made a point of carrying an eight-manufacturer bench: Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. That’s uncommon for an insulation contractor. It means when we walk into an Inglewood attic with old mineral wool and failing plaster keys, we can spec Rockwool acoustic batts alongside closed-cell spray foam rather than pushing whatever single brand we happen to stock.
Inglewood customers regularly tell us the same thing: other companies gave them an “energy savings” pitch and never asked whether the real complaint was noise. We ask. And because we’re insulation-only, every technician who shows up at your home is trained specifically in spray foam, blown-in, and batt work, not split across roofing or HVAC side jobs. Call (877) 521-4987 and we’ll be straight with you about what your house actually needs.
Garage Spray Foam Insulation in Inglewood
Garage Spray Foam Insulation in Inglewood is one of the more frequent requests we field from homeowners in the 90304 and 90306 flats, especially where attached garages share a wall or ceiling with living space. The job involves spraying open-cell or closed-cell foam into garage ceiling bays, rim joists, and shared walls to stop air movement, dampen sound, and keep a garage from dragging conditioned air out of the house. For an Inglewood homeowner with a bedroom above the garage, the ceiling is often the loudest and warmest surface in the house, and foam there changes how the whole room feels within a day of curing.
Rim Joist and Shared-Wall Sealing
Rim joist spray foam in Inglewood garages runs $900 to $2,400 depending on the perimeter length and whether the band board is accessible. Many older Inglewood garages were built as afterthoughts, with open band boards and no blocking, so outside air and noise from the alley or street moves straight into the wall cavities. Closed-cell foam here also adds structural rigidity to old framing, which matters on 1940s and 1950s construction where the lumber has dried and settled.
Bedroom-Over-Garage Comfort
When a top-floor bedroom sits over an uninsulated garage, we typically see attic-style heat stratification plus cold floors in winter, and in Inglewood the bigger issue is noise transfer from garage doors, laundry, or the street. Spray foam on the garage ceiling decouples that room from the unconditioned space below. A typical garage ceiling foam job in Inglewood runs $1,800 to $4,200 depending on square footage and whether we need to move wiring or old light fixtures first.
Closed Cell Spray Foam Insulation in Inglewood
Closed Cell Spray Foam Insulation in Inglewood is the product we reach for most often on homes near the LAX approach path and on any job where moisture, sound, and R-value all matter at once. Closed-cell foam runs roughly $4.25 to $6.75 per board foot installed and delivers around R-6.5 to R-7 per inch, plus it acts as a vapor barrier and adds shear strength to older framing. This is the foam that seals both air and low-frequency noise better than open-cell, which is why we spec it in wall bays and rim joists on Inglewood bungalows where single-pane windows and uninsulated stud bays let everything through.
Wall Bays on Legacy Inglewood Homes
On pre-war and mid-century wood-frame homes in Inglewood, we regularly find wall cavities with nothing in them, or nothing left of whatever was once there. Closed-cell foam fills those bays completely and seals the small cracks and gaps that fiberglass batts never reach. The result is quieter rooms and a ceiling that doesn’t cook in August, plus a wall assembly that finally blocks air infiltration through cracks in the old plaster keys.
Knob-and-Tube Wiring Safety
Here’s the thing about Inglewood’s older stock: knob-and-tube wiring is still hiding inside a lot of these walls, and closed-cell foam should never be sprayed directly over it. The foam can trap heat around old conductors, and the wiring itself is often past its service life. A real spray foam contractor in Inglewood will require a wiring inspection before any foam goes into the bays. If your home still has live knob-and-tube, that circuit needs to be decommissioned and rerouted first, then we spray.
Trusted Brands We Service in Inglewood
Porch Light Insulation is authorized to install products from eight leading manufacturers, but three brands matter most for Inglewood’s housing stock: Spray Foam Insulation from Icynene and Demilec gives us both open-cell and closed-cell options matched to the application, and Owens Corning gives us acoustic batts for attic and interior-wall work where foam alone isn’t the best fit. Because we stock materials for older homes, not just new construction, we can usually start and finish an Inglewood job without waiting on a specialty order. Eight manufacturers, one goal: the right fit for your specific situation.
Common Spray Foam Insulation Problems We See in Inglewood Homes
- Foam sprayed over knob-and-tube wiring. Inglewood’s pre-war bungalows still carry original electrical systems, and some contractors will foam right over them. That’s a fire-safety liability and an inspector fail. We flag it, we reroute, then we spray.
- Open-cell foam sold as a sound fix near LAX. Open-cell is good for air sealing and thermal work, but it does not block low-frequency jet noise the way a closed-cell assembly with acoustic batts will. Near the flight path, the spec has to include closed-cell on the underside of the roof deck or ceiling.
- Foam over old plaster-and-lath without moisture assessment. Inglewood’s coastal marine air means attics and wall cavities carry more humidity than inland cities. If foam goes in without checking how the old lath and plaster behave, trapped dampness migrates to single-pane window gaps and causes peeling paint and musty smells.
- Garages ignored entirely. Many Inglewood homes have attached garages with open band boards and zero insulation. It’s the biggest air and noise leak on the property, and it’s rarely addressed because most insulation quotes stop at the attic hatch.
Pricing for Spray Foam Insulation in Inglewood, CA
Open-cell spray foam in Inglewood runs $2.50 to $4.25 per board foot installed. Closed-cell runs $4.25 to $6.75 per board foot. A typical 1,200-square-foot attic with closed-cell on the roof deck lands between $5,500 and $9,000. Garage ceilings run $1,800 to $4,200. Rim joist sealing runs $900 to $2,400. What moves the number is access, prep work, and whether we’re working around old wiring or failed plaster. Estimates are free, and we’ll never steer you toward closed-cell when open-cell or a hybrid assembly does the job for less. Call (877) 521-4987 for an exact quote on your Inglewood home.
We Also Serve Cities Near Inglewood
Beyond Inglewood proper, we run crews into Inglewood-adjacent neighborhoods including Hawthorne, Del Aire, Lennox, and Alondra Park. If you’re in one of those areas and dealing with the same older housing stock and LAX flight-corridor noise, the same team handles your job start to finish. Same materials, same straight pricing, same free estimate. Call (877) 521-4987.
Serving Inglewood, CA — Our Local Coverage Area
We’re based in the Inglewood 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 Spray Foam Insulation in Inglewood
Closed-cell spray foam will reduce the low-frequency jet noise coming through your ceiling, but it has to be specced correctly. An open-cell-only assembly will not do much for jet rumble. In Inglewood homes near the 90301 and 90304 flats under the approach path, we typically pair closed-cell foam on the roof deck or ceiling with acoustic batts in the attic, which is a combined thermal and sound assembly, not a pure R-value upgrade. Call (877) 521-4987 if you want someone to look at the actual noise path in your house before quoting anything.
You can, but the knob-and-tube circuit has to be deactivated and rerouted before any foam touches those wall bays. Foam sprayed over live legacy wiring traps heat and creates a fire risk, and no responsible contractor will do it. We’ll flag the wiring early in the walkthrough so you’re not surprised later, and we’ll coordinate the electrical work with a licensed electrician before our crew sprays. It adds time and some cost, but it’s non-negotiable on these older Inglewood homes.
Yes, garage ceiling and rim joist spray foam is one of our most common Inglewood jobs. Attached garages on 1930s-to-1960s homes here were usually built with no insulation and open band boards, so they act as a giant air and noise leak against the rest of the house. Foaming the garage ceiling and rim joists is often the single highest-impact improvement we can make for bedrooms above the garage. Typical cost is $1,800 to $4,200 for the ceiling, and we can usually do it in one day.
Not necessarily. Old blown-in insulation in Inglewood attics is often compressed, dusty, and full of gaps around ceiling penetrations, and it does nothing for noise. If your real complaint is heat or jet noise coming through the ceiling, removing the old stuff and spraying closed-cell on the roof deck or adding acoustic batts plus air sealing is a legitimate upgrade, not overkill. We’ll show you what’s actually in your attic and give you a comparison quote so you can decide with real numbers.
We install both Icynene and Demilec spray foam, and we carry Owens Corning acoustic batts for hybrid assemblies on older Inglewood walls. Plaster-and-lath construction needs a foam that expands gently and doesn’t stress the old plaster keys, and the right product depends on the wall cavity depth and whether knob-and-tube has been removed. We bring the full eight-brand bench to every quote so the material is matched to the wall assembly, not the other way around.
Get a Free Inglewood Spray Foam Estimate
If you own a home in Inglewood and you’re dealing with hot ceilings, noise from the flight path, or an old wall assembly that was never insulated properly, we’ll give you a straight answer. No upsell, no single-brand push. Call Porch Light Insulation at (877) 521-4987 and we’ll schedule a free walkthrough and estimate. From blown-in attics to closed-cell spray foam, we compare options so you don’t have to guess.
Written by Gil Tanner, Owner at Porch Light Insulation, serving Inglewood and surrounding Los Angeles County communities.