Insulation Company in Manhattan Beach, CA
Blown in insulation solves a problem Manhattan Beach homeowners know well: rooms that never quite hold temperature when the marine layer rolls in. Homes here, especially the 1940s and 1950s bungalows in the Sand Section and east of Sepulveda, were built before insulation was standard practice. Ruby Insulation has served Manhattan Beach since 2013, and we specialize exclusively in insulation: attic, spray foam, and blown-in. Call (833) 356-0182 for a free estimate on any of them.
Why Manhattan Beach Homes Are Different
Manhattan Beach sits close enough to the ocean that salt-heavy onshore breezes shape every insulation decision. Marine air is damp, and it moves through crawlspaces, wall cavities, and attics in ways you don’t see in inland cities like Torrance or Redondo Beach. Older homes in the Sand Section and around the Strand often have open crawlspaces that draw that ocean air directly under living spaces. Original fiberglass batts sag, compress, and lose their R-value within a decade when exposed to that kind of moisture cycle. We routinely find batts that look fine from the living side but have collapsed to half their thickness once you open the cavity.
Housing stock here spans original 1940s and 1950s beach bungalows, 1960s ranch-style homes, and modern luxury builds in the Hill Section. Raised foundations are common, which means crawlspace insulation and air sealing matter as much as attic work. Older walls are often empty. That’s why we carry Rockwool and closed-cell foam alongside traditional fiberglass: Manhattan Beach needs moisture-resistant materials, not just thermal ones. The city’s building department also expects retrofits to meet current energy codes, so sealing and vapor management are part of nearly every job we do in 90266 and 90267.
Our Main Manhattan Beach Services
Two services dominate the calls we get from Manhattan Beach homeowners: attic insulation and spray foam. Each has its own page with pricing details, signs to watch for, and what the work involves at a beach-adjacent home.
Attic Insulation in Manhattan Beach
Most Manhattan Beach attics are under-insulated for what the home needs. Heat rises, and when the attic floor has only a few inches of old fiberglass, upstairs rooms run hot in summer and cold on winter evenings. We inspect existing depth, check for moisture damage from marine air, and build the attic back to proper R-value with blown-in fiberglass, cellulose, or batts. Air sealing around can lights, plumbing chases, and the attic hatch keeps conditioned air from leaking. Read the full breakdown on our Attic Insulation in Manhattan Beach page.

Spray Foam Insulation in Manhattan Beach
Spray foam is the best answer for Manhattan Beach crawlspaces and unvented attics because it handles moisture better than fiberglass. Closed-cell foam acts as an air barrier, a vapor barrier, and insulation in one pass, which matters when the crawlspace pulls damp ocean air all year. We install Icynene and Demilec systems, both professional-grade products that require trained applicators. For homes with storage attics or conditioned crawlspaces, spray foam also stiffens the structure. Details and pricing are on the Spray Foam Insulation in Manhattan Beach 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 Manhattan Beach
Blown in insulation is the fastest way to bring an older Manhattan Beach attic up to current energy code without tearing the house apart. In 1940s and 1950s beach bungalows, existing insulation is often thin, settled, or missing entirely, and blown-in material fills gaps and odd-shaped cavities that batts can’t reach. We blow cellulose or fiberglass through a hose, layering it to the right depth for the home’s R-value target. For full details on materials, R-value, and how the process works, see our Blown In Insulation hub.
Cellulose Insulation
Signs you need it
Your attic insulation looks patchy, settled, or compressed below the tops of the ceiling joists, and upstairs rooms swing hot and cold with the weather.
What it costs in Manhattan Beach
Blown-in cellulose for a typical 1,200 to 1,400 square-foot Manhattan Beach attic runs $1.25 to $2.10 per square foot installed, depending on depth and access.
How we do it
We air-seal penetrations, mark target depth, and blow GreenFiber cellulose to a uniform blanket that fills bays and odd cavities in one pass.
Blown In Attic Insulation
Signs you need it
Your attic has no insulation, or what’s there is yellowed, compressed, and uneven, and you can feel heat bleeding through the ceiling on hot afternoons.
What it costs in Manhattan Beach
Blown-in attic insulation for most Manhattan Beach homes falls between $1.50 and $3.00 per square foot, including removal of old material when it’s too far gone.
How we do it
We remove any wet or deteriorated material, seal the attic floor, then blow fresh insulation to the depth the home needs for a true R-38 to R-49 attic.
Blown In Fiberglass Insulation
Signs you need it
Your attic’s fiberglass batts are torn, compressed, or have gaps around wiring and framing, leaving thermal holes that show up as cold spots in winter.
What it costs in Manhattan Beach
Blown-in fiberglass in Manhattan Beach typically runs $1.50 to $3.00 per square foot installed, with denser packing on the higher end for walls.
How we do it
We run a calibrated blower hose into the attic and distribute loose-fill fiberglass evenly, fluffing it to full loft so it resists settlement year after year.
Loose Fill Insulation
Signs you need it
Hard-to-reach cavities, knee walls, or enclosed attic eaves are uninsulated, and you feel drafts at floor level or along interior walls.
What it costs in Manhattan Beach
Loose-fill insulation for dense-pack or spot applications in Manhattan Beach starts around $1.50 and goes to $3.00 per square foot depending on cavity and access.
How we do it
We drill small access holes, feed the loose-fill material into each cavity, and patch cleanly so the home’s original trim and character stay untouched.
What Blown In Insulation Costs in Manhattan Beach
| Item | Typical range in Manhattan Beach |
|---|---|
| Attic blown-in insulation (R-38, existing attic) | $1.50 – $2.50 per sq ft |
| Cellulose blown-in (attic floor) | $1.25 – $2.10 per sq ft |
| Blown-in fiberglass (attic floor) | $1.50 – $3.00 per sq ft |
How long does blown in insulation last in Manhattan Beach’s marine air?
Cellulose settles over the first few years but holds its R-value for decades when the attic stays dry. Fiberglass retains loft even longer. Proper air sealing and ventilation matter more than material choice in coastal air.
Is blown in insulation enough for a 1950s Manhattan Beach home?
In most cases, yes for the attic. Walls are a separate job. Blown-in attic insulation immediately reduces heat gain through the ceiling, which is where those older homes lose the most conditioned air. Call (833) 356-0182 for an exact assessment.
Brands We Service in Manhattan Beach
Ruby Insulation stocks and installs eight insulation brands, so the material fits the home instead of the other way around. In Manhattan Beach we carry Knauf fiberglass, Rockwool mineral wool, CertainTeed batts, and Icynene spray foam, with parts and materials staged locally for faster scheduling. See our brands for the full lineup and applications.
Pricing for Insulation Company in Manhattan Beach, CA
| Service | Typical range in Manhattan Beach |
|---|---|
| Attic insulation (blown-in, new or top-up) | $1.50 – $3.00 per sq ft |
| Spray foam insulation (open-cell, attic) | $1.50 – $3.00 per sq ft |
| Spray foam insulation (closed-cell, crawlspace) | $2.00 – $4.00 per sq ft |
| Blown-in cellulose (attic floor) | $1.25 – $2.10 per sq ft |
| Blown-in fiberglass (attic floor) | $1.50 – $3.00 per sq ft |
| Loose-fill insulation (dense-pack or spot) | $1.50 – $3.00 per sq ft |
| Batt insulation (walls, fiberglass) | $1.50 – $3.50 per sq ft |
| Mineral wool batts (walls or floors) | $2.50 – $4.50 per sq ft |
| Radiant barrier (attic underside) | $1.00 – $2.50 per sq ft |
| Air sealing (attic floor package) | $400 – $1,200 per home |
| Crawlspace insulation (closed-cell spray foam) | $2.00 – $4.00 per sq ft |
In Manhattan Beach, prices push higher when we’re working in a tight Sand Section crawlspace, removing old salt-damaged material, or matching a historic ceiling finish after drilling for dense-pack. Every Ruby Insulation quote is line-itemed and upfront, so you know the full cost before work begins. Call (833) 356-0182 for a free estimate.
Neighborhoods We Serve in Manhattan Beach
We work across all of Manhattan Beach, from the tight Strand-side lots to the larger Hill Section homes and the 1960s ranches east of Sepulveda. Our crews know the difference between a Sand Section crawlspace and a Tree Section attic, and we schedule accordingly.
- Sand Section
- Tree Section
- Hill Section
- Manhattan Village
- Strand and oceanfront
Most Manhattan Beach jobs can be scheduled within a week, and we keep a tight radius so we’re never more than a short drive from 90266 or 90267.
Service Area – Cities Near Manhattan Beach
Ruby Insulation also serves the surrounding South Bay cities, including Redondo Beach, CA, Rolling Hills Estates, CA, Palos Verdes Estates, CA, and Torrance, CA. If you’re nearby and need insulation work, call (833) 356-0182 and we’ll confirm service for your address.
Serving Manhattan Beach, CA — Our Local Coverage Area
We’re based in the Manhattan Beach 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 Manhattan Beach
Most insulation-only retrofits do not require a permit, but if the project includes structural changes like converting a vented attic to unvented with spray foam, the city may require a plan review. We handle code compliance and can advise before work starts.
For attic or blown-in insulation, we can usually schedule within a week. Crawlspace spray foam jobs involving marine-air moisture remediation may take a bit longer to stage. Call (833) 356-0182 and we’ll give you a firm date on the first call.
Yes. Most HOAs in the Strand and gated communities don’t regulate interior insulation, but some restrict exterior vent or penetration changes. We work within those guidelines and can supply documentation for your HOA if needed.
Call Ruby Insulation at (833) 356-0182 for a free estimate on blown in, attic, or spray foam insulation in Manhattan Beach. We’ll assess your home, recommend the right material, and give you an upfront price.
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 the hour.
- 4You approve before work beginsNothing starts until you say go.
What Manhattan Beach Customers Say
"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."
— Adam Thompson"Spray foam in the rim joists in the basement. The cold floors above them are gone."
— Laura Ackerman"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Raj Rao