Fast, Reliable Spray Foam Insulation Across Temple City
Spray foam insulation in Temple City typically costs between $1.50 and $3.50 per board foot installed, with most 91780 attic retrofits landing in the $2,400 – $6,800 range depending on square footage, foam type, and how much prep the attic needs. Most Temple City jobs are completed in one to two days, and we schedule free estimates within two to three business days. If you’re tired of afternoon heat radiating through your ceiling or back bedrooms that won’t drop below 80°F in July, call (866) 605-6949 and we’ll walk the attic with you, measure R-value, and tell you honestly whether spray foam is the right call for your house. We work in Temple City every week and know the attic conditions this town throws at homeowners.
Why Hollywood Insulation Co Is Temple City’s Preferred Spray Foam Insulation Company
Temple City homeowners deal with a specific problem: postwar ranch houses built between the early 1950s and late 1960s, almost all of them with attics that have been opened and re-opened for HVAC, rewiring, and additions. By the time we arrive, the original insulation is usually crushed flat and the air barrier is gone. That’s what we specialize in fixing. We’re a dedicated insulation contractor, not a general remodeler who does insulation on the side. Our crews install spray foam, blown-in, and batt insulation every day, so when we say spray foam is or isn’t right for your 91780 home, that recommendation comes from working all three methods, not from whatever product we happen to prefer.
Noel Camacho leads our team, and his approach is plain: match the material to the house, not the house to the material. Temple City customers regularly tell us the most useful thing we did was explain why their attic stays hot even after someone blew in more fiberglass ten years ago. That explanation usually starts with air leakage. When we’re done, the difference is measurable, not theoretical.
We respond to Temple City callouts fast. For most 91780 properties, a technician can be on site within 24 to 48 hours for an estimate, and emergency attic assessments are often available same-week. No inflated travel fees for Temple City work. Just the same pricing and the same crew you’d get anywhere we operate.
Crawl Space Spray Foam Insulation in Temple City
Crawl Space Spray Foam Insulation in Temple City is a retrofit job we recommend for homes with vented crawl spaces that leak hot air into the living floor above. In 91780, many postwar homes have raised foundations with shallow crawl areas that let summer heat and dust migrate upward, especially when the original fiberglass batts between floor joists have sagged or fallen out entirely. We insulate the crawl space by air-sealing the rim joist and foundation vents, then applying closed-cell spray foam to the subfloor and band joist areas. This stops hot air movement and helps keep floors from feeling warm underfoot in July and August.
Cost for crawl space spray foam in Temple City generally runs $1,800 – $4,500 for a typical 1,000 to 1,400 square foot ranch foundation, depending on access height, how much debris and old insulation needs removal, and whether the rim joist is fully reachable. The job usually takes one day.
Rim Joist Sealing and Subfloor Foam
In Temple City’s tight crawl spaces, the rim joist is where most outside air enters. We apply two inches of closed-cell foam to the rim band and top six to twelve inches of the foundation wall. Then we foam the subfloor cavities where old batts have dropped. The result is a much tighter floor plane and a measurable drop in dust movement into the house.
Common Crawl Space Conditions in 91780
We see a lot of Temple City crawl spaces with original fiberglass batts stapled to the subfloor, now darkened and hanging loose. We also see plenty of open foundation vents letting 100°F air pour in during summer. Sealing those vents and foaming the rim cuts both the heat and the moisture problem. If the crawl space also has plumbing leaks or standing water, we’ll recommend addressing that before insulation goes in.
Garage Spray Foam Insulation in Temple City
Garage Spray Foam Insulation in Temple City is often the fastest way to cool down a garage that faces west or gets sun for ten hours a day. Many Temple City garages are attached, and their walls and ceilings were never insulated at all when the house was built. We apply open-cell or closed-cell spray foam to the garage ceiling and shared wall with the house, plus the outer walls if the garage is finished. On a 1958 ranch we worked on off Olive Street, the garage ceiling had nothing but drywall between the attic and the interior, and the garage stayed over 100°F by mid-afternoon. Foaming the garage ceiling dropped the interior temperature noticeably within one day and stopped heat from seeping through the wall into the kitchen behind it.
Expect garage spray foam in Temple City to cost between $900 and $2,600 depending on garage size, number of walls, and whether the ceiling joists are accessible or need drywall removed. Most garages are done in one day.
Ceiling Foam for Unfinished Garages
If your Temple City garage has exposed ceiling joists, we can spray directly onto the underside of the roof deck or the attic floor above. This is a straightforward job with no drywall work. Closed-cell foam on a low-pitch roof deck also strengthens the roof slightly and seals out dust from the attic.
Shared Wall Treatment
The wall between your garage and your living space is a heat path. When that wall is uninsulated, the dryer, water heater, or a parked car can make the adjacent bedroom or laundry room several degrees hotter. We foam that wall cavity after confirming no knob-and-tube wiring is present, which is sometimes still found in Temple City homes built before 1960.
Trusted Brands We Service in Temple City
We install spray foam from Icynene and Demilec, the two systems we specify most often in Temple City because they cover both open-cell and closed-cell applications well. We also carry CertainTeed, Rockwool, Owens Corning, Johns Manville, Knauf, and GreenFiber for jobs where foam is the wrong tool. That matters. We don’t push spray foam where blown-in cellulose or Rockwool batts make more sense for your house. We maintain stocked supply for common Temple City retrofit sizes, so we’re not waiting a week on material for a routine attic. If your 91780 attic needs Icynene open-cell, it’s on our truck, not on backorder.
Common Spray Foam Insulation Problems We See in Temple City Homes
- Foam sprayed over crushed batts without air-sealing first: We regularly find attics in Temple City where someone sprayed foam over old, trampled fiberglass without sealing top plates and wire penetrations first. That traps warm, moist air against the drywall and can cause condensation along ceiling seams in winter. The order of work matters: seal first, then foam.
- Adhesion failures from dust and old cellulose: 1950s stucco-on-wood-frame attic decks in 91780 carry decades of dust, broken-down cellulose, and general grime from dozens of re-entries for HVAC and rewiring. Two-part foam needs a clean, dust-free surface to bond properly. We prep aggressively, and we inspect for adhesion before leaving the job.
- Foaming only the attic floor while leaving roof vents open: In Temple City’s 95 – 105°F summer afternoons, a low-pitch roof absorbs enormous radiant heat. If we foil the attic floor but leave gable and roof vents unsealed, the attic still bakes and the ducts running above the foam stay hot. The roof assembly has to be treated as one system, not one layer.
- Original R-19 batts trampled to R-7 and mistaken for adequate insulation: This is the single most common surprise in Temple City attics. Decades of electricians, HVAC techs, and cable installers have walked the batts flat. Homeowners assume they have R-19. They have crushed matting that tests closer to R-7. Spray foam over that doesn’t fix the gap; replacing it with sealed foam and proper R-value does.
Pricing for Spray Foam Insulation in Temple City, CA
Here’s what we actually charge in Temple City, based on recent jobs:
- Open-cell spray foam, attic floor: $1.50 – $2.10 per board foot installed
- Closed-cell spray foam, rim joist or crawl space: $2.20 – $3.50 per board foot installed
- Garage ceiling and shared wall foam, typical 2-car attached garage: $1,200 – $2,600
- Crawl space rim and subfloor foam, typical 1,200 square foot ranch: $2,200 – $4,500
- Attic air-sealing and prep work (top plates, penetrations, vent baffles): $400 – $900
A typical 1,100 square foot Temple City ranch with a low attic and original batts removed, then air-sealed and re-insulated with open-cell foam on the attic floor, usually lands between $3,200 and $5,400. Remove old batts, add closed-cell to the rim joist, and do the crawl space at the same time, and you’re looking at $5,500 – $8,000. The number moves based on attic height, how much debris is up there, and whether electrical or duct issues need to be worked around. Call (866) 605-6949 for a free, no-pressure estimate. We’ll give you exact numbers after we walk the attic, not a scripted range over the phone.
We Also Serve Cities Near Temple City
Our crews work throughout the San Gabriel Valley. Beyond Temple City, we regularly install Spray Foam Insulation in North El Monte, Rosemead, San Gabriel, and Arcadia. If you’re in any of those communities and dealing with the same postwar attic problems, the same crew handles the job. We also maintain our full service area for Spray Foam Insulation in Temple City and the surrounding 91780 and 91775 zip codes.
Serving Temple City, CA — Our Local Coverage Area
We’re based in the Temple City 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 Temple City
Because the original batts in your attic are almost certainly crushed and the air barrier is gone. Simply laying new batts over trampled R-7 material doesn’t fix air leakage through top plates, wire penetrations, and venting gaps. Spray foam air-seals those paths while providing the R-value, and in Temple City’s re-entered postwar attics, that dual function is the whole point. Call (866) 605-6949 and we’ll show you what’s actually up in your attic before you spend anything.
Yes. We foam the rim joist and subfloor cavities in raised-foundation crawl spaces throughout 91780. This stops hot outside air from moving through the floor assembly, which helps keep the living space cooler and reduces dust. Closed-cell foam is the specification for most Temple City crawl spaces because it handles moisture and adds structural strength.
Insulating the garage ceiling and shared wall reduces heat transfer from the garage into the house, which helps if the door itself is sealed and the opener is functioning. It won’t fix a warped door or a failing opener, but it will stop the garage from being a heat source against your living space. For garage doors specifically, the insulation belongs in the ceiling and walls, not on the door panels themselves in most Temple City homes.
For most 91780 low-pitch roofs where the attic is vented and we’re foaming the attic floor, 3 to 5 inches of open-cell foam typically delivers R-11 to R-18. If we’re converting the attic to an unvented, conditioned assembly by foaming the roof deck, closed-cell at 2 to 3 inches (R-14 to R-21) is common. The right number depends on your roof framing, venting, and whether ducts run through the attic. We measure and tell you before any foam is sprayed.
We use both. Icynene open-cell is our go-to for attic floor retrofits where air-sealing and sound control matter. Demilec closed-cell is specified for rim joists, crawl spaces, and roof decks where moisture resistance and higher R-value per inch are required. Both are industry-recognized systems, and we’ll specify the one that fits your Temple City house without upselling you into the other.
Get Your Free Temple City Spray Foam Estimate
If your Temple City home has a hot attic, warm floors, a garage that radiates heat into the kitchen, or energy bills that climb every summer, we can give you a straight answer about what’s causing it and what it costs to fix. We work in 91780 every week and know these postwar houses. Call (866) 605-6949 and ask for Noel or any of our team. We’ll schedule a walk-through, measure your attic’s actual R-value, and give you a written estimate with line-item pricing. No pressure, no vague numbers. Just a clear plan for making your house comfortable through Temple City’s hottest months.
Written by Noel Camacho, Owner at Hollywood Insulation Co, serving Temple City and the San Gabriel Valley with dedicated insulation expertise.