Frequently Asked Questions
We get a lot of questions from Hollywood homeowners who are tired of rooms that never quite reach the thermostat setting, or from builders who need a material specified correctly the first time. This page collects the answers we give most often, grouped so you can find yours quickly. If your question isn’t here, call us at (866) 605-6949 and we’ll talk it through.
Key takeaways:
- We install three things only: attic insulation, spray foam insulation, and blown-in insulation. That focus is the point.
- Every recommendation is method-agnostic because we carry eight manufacturer brands across fiberglass, mineral wool, spray foam, and cellulose.
- Estimates are free, and we’ll tell you honestly when insulation isn’t your problem.
- Call (866) 605-6949 to schedule. We’ll walk your attic, check the R-value, and find the air leaks before quoting anything.
Pricing & Estimates
How much does insulation service cost?
Insulation pricing depends on three things: the square footage, the material you choose, and how much prep work the attic needs before we can install. Blown-in cellulose (GreenFiber) and fiberglass batts (Owens Corning, Johns Manville, Knauf, CertainTeed) sit at the lower end because the material and labor are straightforward. Spray foam runs higher per square foot because it’s a two-part chemical system applied in passes, and closed-cell costs more than open-cell. We quote line by line, so you see material, labor, and any air-sealing prep separately. Call (866) 605-6949 and we’ll give you an exact number after we’ve seen the space. Estimates are free.
Do you offer free estimates?
Yes, our estimates are free. We come out, measure the attic or the wall cavities, check existing R-value, and look for the thermal bypasses and air leaks that make insulation underperform. You get a written recommendation with material options, not a single take-it-or-leave-it number. That matters when you’re deciding between, say, blown-in cellulose and open-cell Icynene foam, because the two solve different problems at different price points.
Is spray foam worth the extra cost over blown-in?
Spray foam is worth it when air sealing and moisture control matter as much as R-value, which is often the case in older Hollywood homes with complicated framing. Blown-in cellulose is the better value when you mainly need to bring an open attic up to a target R-value and the air barrier is already decent. We install both, so we have no reason to steer you toward the more expensive option. If your attic just needs depth and density, we’ll say so.
How do I know which insulation material is right for my home?
The right material is the one that matches your framing, your climate exposure, and what you’re trying to fix. Closed-cell foam (Demilec) gives you the highest R-value per inch plus a vapor barrier, so it suits tight cavities and moisture-prone assemblies. Open-cell foam (Icynene) is softer, fills irregular spaces, and handles sound well. Rockwool mineral wool brings fire resistance and acoustic control. GreenFiber cellulose is recycled-content and dense-packs nicely into existing walls. We carry all of them because no single method is right for every situation. That’s the whole reason our portfolio is this broad.
Do you charge for attic inspections?
No, the attic inspection that comes with an estimate is free. We go up, measure depth, check for compressed or settled batts, look at ventilation, and photograph anything that needs attention. You’ll see what we see. Call (866) 605-6949 to book a time.
Service & Scheduling
How fast can you respond?
We typically schedule estimates within a few business days and can often get installation on the calendar the following week, depending on material availability and the size of the job. Spray foam jobs need a bit more lead time because we schedule the application around cure times and occupancy. When you call, we’ll give you real dates, not a vague window. Reach us at (866) 605-6949.
Do you offer emergency insulation service?
We don’t run a 24-hour emergency line, because insulation work isn’t an emergency service the way a burst pipe is. What we do handle quickly is storm damage where insulation has been soaked or blown out, and situations where a homeowner is dealing with a sudden moisture problem. Call (866) 605-6949 during business hours and we’ll get you on the schedule as fast as we can.
Do you work with builders and remodelers?
Yes, and we’re built for it. Builders and remodelers need an insulation partner who can read a plan, specify the right assembly, and hit a framing schedule without hand-holding. We carry eight manufacturer brands, which means we can spec around availability problems and still meet the R-value the drawings call for. If you need submittals or product data sheets for a permit package, ask.
How long does a typical installation take?
Most residential attic jobs finish in a single day. A straightforward blown-in attic, from setup to cleanup, usually runs several hours. Spray foam takes longer because it’s applied in passes with cure time between them, and a whole-house foam job can stretch across two or three days. We’ll give you an honest timeline with the estimate so you can plan around it.
Do you serve my area?
We serve Hollywood and the surrounding Los Angeles neighborhoods. Because our work is local, we know the housing stock: the older bungalows with knob-and-tube era framing, the hillside homes with tricky attic geometry, the additions where the insulation was never brought up to the original house’s level. If you’re unsure whether you’re in range, call (866) 605-6949 and we’ll tell you straight.
Licensing, Trust & Guarantees
Are you licensed and insured?
Yes, we’re a licensed and insured insulation contractor. For spray foam work in particular, licensing and insurance matter, because it involves chemical systems, specialized equipment, and building-code compliance on the assembly. We’re happy to provide our credentials before you commit to anything. Ask when you call (866) 605-6949.
Do you guarantee your work?
We stand behind our installations, and we’ll put the specific terms in writing before work begins. Insulation is unusual among trades in that the result is measurable: R-value is R-value, and air sealing either works or it doesn’t. If something we installed settles, sags, or underperforms within the coverage period, we come back and fix it. Ask us for the written terms on your specific job.
What payment methods do you accept?
We accept the standard payment methods: check, credit card, and bank transfer. For larger builder and remodel projects, we’ll work out terms in advance. We don’t ask for full payment upfront on residential jobs. Call (866) 605-6949 and we’ll confirm the details for your project.
Why hire an insulation specialist instead of a general contractor?
Because insulation is a diagnostic trade, and specialists do it every day. A generalist installing batts on the side tends to install batts, whether or not batts are the right answer for your attic. Our technicians spend their days finding thermal bypasses, air leakage paths, and R-value deficiencies. That’s the whole job. We’re not a general contractor with insulation on the side, and that focus shows up in the diagnosis.
What brands do you carry?
Eight, across every major insulation category. Fiberglass: Owens Corning, Johns Manville, CertainTeed, and Knauf. Mineral wool: Rockwool. Spray foam: Icynene and Demilec, both open-cell and closed-cell systems. Recycled cellulose: GreenFiber. That breadth isn’t a marketing line, it’s what lets us pick the material that fits your home instead of whatever’s on the truck.
Specific Services
Do you handle attic insulation?
Yes, attic insulation is one of our three core services, and it’s the most common job we do. Attics are where most Hollywood homes lose the most conditioned air, and where we can often make the biggest difference for the least cost. For a full walkthrough of how we approach attic work, including R-value targets and air sealing, see our page on Attic Insulation in Hollywood.
Do you handle spray foam insulation?
Yes, we install both open-cell and closed-cell spray foam, and we’re anchored by two of the most specified systems in North America: Icynene and Demilec. Closed-cell foam gives you the highest R-value per inch and acts as a vapor barrier, which matters in moisture-prone assemblies. Open-cell foam is softer, fills irregular cavities, and handles sound. Both are two-part chemical systems applied with specialized equipment, so this isn’t a do-it-yourself job. A real installer needs proper training, respiratory protection, and a cure plan for the space. Call us and we’ll spec the right one for your application.
Do you handle blown-in insulation?
Yes, blown-in insulation is one of our three installation methods, and it’s the go-to for existing walls and open attics. Loose-fill material is blown in under pressure to fill the cavity completely, which handles irregular framing far better than batts. We blow GreenFiber recycled cellulose in attics and walls, and we also blow fiberglass from Owens Corning and Johns Manville. It’s fast, it fills gaps, and it doesn’t require tearing into walls the way some retrofit options do.
Do you handle crawl space encapsulation and vapor barriers?
No, we don’t offer crawl space encapsulation. Our three services are attic insulation, spray foam insulation, and blown-in insulation. If you’re dealing with a crawl space moisture problem, that’s a different trade, and we’d rather point you toward the right specialist than stretch our scope. What we can do is handle the spray foam air sealing at the band joist and any insulation that ties into the crawl space perimeter, if that’s part of your project. Call (866) 605-6949 and we’ll help you figure out where our part ends.
Can insulation fix uneven room temperatures?
Often yes, uneven temperatures come down to air leakage and under-insulated assemblies rather than your HVAC system. When a bonus room over the garage stays hot in summer while the rest of the house is fine, or the second floor is always ten degrees off, the culprit is usually a thermal bypass or missing insulation in the attic. We diagnose those before quoting. We don’t do HVAC work, so we won’t sell you a new system to solve an insulation problem.
How much insulating do I actually need?
What you need is measured in R-value, and the target depends on your climate zone, your heating and cooling setup, and how your assembly is built. Hollywood’s climate is mild, but the sun load and the way heat moves through an attic still drive real differences in bills. Most older homes we see are well below where they should be, sometimes by half or more, because the batts have been compressed, settled, or were never thick enough to begin with. We measure before we quote. Call (866) 605-6949 and we’ll tell you where you stand.
What should I check before calling an insulation contractor?
Check your attic depth if you can do it safely from a ladder with a flashlight, and note which rooms are always too hot or too cold. That’s enough to start the conversation. Here’s what happens from there:
- Call and describe the problem. Uneven rooms, drafty rooms, rising bills, or a specific project like a remodel. Call (866) 605-6949.
- We inspect the attic or wall assembly. We measure depth, check the existing material, and look for air leakage paths and thermal bypasses. No charge.
- You get a written recommendation with options. Material choices, R-value targets, and line-item pricing. Blown-in, spray foam, batt, or a combination, whichever fits the space.
- We schedule the install and prep the space. We protect surfaces, set up ventilation for foam work, and coordinate access with you.
- Installation and cleanup. The work is done to the agreed spec, and we clean up as if we were never there.
- Follow-up. If anything settles or underperforms within the coverage period, we come back. That’s the guarantee in practice.
Start at our home page if you’d like the overview of what we do, then call when you’re ready.
Where We Work
Do you serve the hillside neighborhoods above Hollywood?
Yes, we work the hillside homes where attic geometry is complicated and access isn’t always easy. If your home has a low-slope roof, a knee-wall attic, or a framing layout that’s had additions over the years, that’s exactly the kind of space where a specialist matters. Call (866) 605-6949 and describe what you’ve got; we’ll tell you what’s likely to work.
Do you work on older homes?
Yes, older homes make up a big share of our work, and they’re where insulation upgrades pay off the most. Older framing means irregular cavities, which is where blown-in cellulose and spray foam both beat standard batts. It also means we need to look at moisture and ventilation before we seal anything up, because an old house that gets sealed wrong can create problems. We check before we install.
Do you install insulation for additions and remodels?
Yes, and we like getting in during the remodel rather than after. If the walls are open, we can specify the right material for the assembly and hit the R-value the drawings call for. That’s a much better outcome than retrofitting insulation to a closed assembly later. Call early in the project and we can work with your framing schedule.
Still have a question?
Most of what we get asked comes down to two things: which material belongs in the space and what it will cost. We’re happy to give you both, with real numbers, after we’ve seen the attic. We carry eight manufacturer brands (Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber) and install all three methods, so the recommendation you get is based on the building, not on what we happen to have on hand. If you’re tired of hot upstairs rooms, cold floors, or bills that climb every summer, call Hollywood Insulation Co at (866) 605-6949 for a free estimate. We’ll come out, take real measurements, and tell you what your home actually needs.
Written by the team at Hollywood Insulation Co, insulation specialists serving Hollywood, CA.
Have a question we didn’t cover? Call Hollywood Insulation Co at (866) 605-6949.