How Much Does Radiant Barrier Installation Cost in Van Nuys?
Radiant barrier installation in Van Nuys typically costs between $1,800 and $3,400 for an average 1,500 sq ft home in 2026, with most homeowners landing near $2,400. That range covers foil-faced radiant barrier installed across the attic roof deck with proper air-space clearance. Larger homes, two-story layouts, and added prep work push pricing toward the upper end. The exact figure depends on square footage, attic configuration, and whether we’re installing over existing insulation or starting from a bare deck.
We’re Thermal Insulation Co, and insulation is the only trade we do. That focus matters here: radiant barrier is not a standalone product that works by being stapled up somewhere. It performs as part of an attic thermal system, and the price quote should reflect how it fits with whatever insulation and ventilation already exist in your home. Call (855) 382-3451 for a free attic assessment and an upfront number before any work begins.
Key Takeaways
- Typical Van Nuys radiant barrier installation runs $1,800 – $3,400 for a standard single-story home.
- Per-square-foot pricing falls in the $1.20 – $2.25 range depending on product type and attic complexity.
- Attics over 1,800 sq ft, two-story homes, and Cathedral ceilings in Van Nuys’ ranch-style stock add cost.
- Radiant barrier pairs with attic insulation – we install both (Owens Corning, Johns Manville, Knauf, CertainTeed) so the attic performs as one system.
- Free estimates, upfront pricing, and no surprises once we’re on the roof deck.
Radiant Barrier Installation Cost Breakdown (2026)
Homeowners ask us for a single number, but a real quote breaks into parts. Here’s how a typical Van Nuys radiant barrier project prices out in 2026. These are installed ranges, labor and material together.
| Line Item | Typical Range (Van Nuys, 2026) |
|---|---|
| Radiant barrier material + install, per sq ft of attic | $1.20 – $2.25 |
| Full attic, standard single-story (1,200 – 1,600 sq ft) | $1,800 – $3,400 |
| Full attic, larger or two-story home (1,800 – 2,500 sq ft) | $3,200 – $5,100 |
| Attic prep: clearing, old insulation removal, minor repairs | $250 – $900 |
| Radiant barrier + new blown-in attic insulation combined | $3,400 – $6,800 |
| Ductwork radiant wrap add-on | $180 – $450 |
| Attic ventilation improvements (if needed) | $300 – $850 |
The biggest driver is attic square footage, but method matters too. Foil-faced sheathing that goes down over the roof deck costs more in labor than a perforated foil product that attaches to the underside of the rafters. We carry both because the right choice depends on your roofline and whether the attic needs to vent. A low-slope roof common on mid-century Van Nuys homes limits access and adds prep time. A simple gable roof goes faster. Homes with dense-pack insulation already in the joists usually need less prep, so the total comes down.
Radiant barrier does its job by reflecting radiant heat before it radiates down into the living space. In the San Fernando Valley, that’s the whole game in July and August. It works best when installed with a clear air gap facing the hot roof, and when the home already has decent bulk insulation below. If your attic is under-insulated, radiant barrier alone won’t fix the problem. We’ll tell you that upfront rather than sell you the foil and call it done.
What Affects Radiant Barrier Installation Pricing in Van Nuys
Two homes with the same square footage can price hundreds apart. Here’s what moves the number in this market.
- Attic square footage and layout. A typical Van Nuys ranch home has a long, open attic run above the living space, which is straightforward. Add a cross-gable, a bumped-out addition, or a detached garage tie-in and the install crew works around framing and tighter bays, which adds hours.
- Roof pitch and access. Steep patio-cover-style roofs and low-slope roofs both slow things down. A steep roof means less standing room and more safety rigging. A very low roof means crawling. The happy middle – a standard 4/12 to 6/12 gable – is fastest and cheapest.
- Radiant barrier product type. Perforated foil (which lets moisture escape) is the standard choice for most Valley attics and prices lower. Solid foil-faced radiant sheathing costs more but suits certain roof assemblies. We select the product to match, not the other way around.
- Existing insulation and attic condition. If the attic holds decades of old fiberglass batts, removal and disposal add to the job. Van Nuys has a lot of 1950s and 1960s housing stock where original insulation has collapsed or been compromised by roof leaks. Cleaning that out first lets the new radiant barrier and any added insulation do their job.
- Ventilation and moisture conditions. Radiant barrier traps heat if the attic can’t vent. Valley summers are dry, but a poorly vented attic still needs intake and exhaust balanced before we close it up. That may add a ridge or soffit vent step to the quote.
- Combining with attic insulation. The most cost-effective Van Nuys upgrades bundle radiant barrier with new bulk insulation. One crew mobilization, one attic visit, one labor window. When we’re already up there installing (say, GreenFiber cellulose blown in), adding radiant barrier to the same appointment is cheaper than a standalone job.
How to Save on Radiant Barrier Installation
There isn’t a discount code that drops radiant barrier pricing. The savings come from doing the job right the first time and bundling what makes sense.
- Bundle the attic. If your attic insulation is also thin or degraded, doing radiant barrier and new insulation in one visit saves a separate mobilization fee. It also lets one crew address the whole thermal system, which is how attics actually deliver savings. Learn about our Radiant Barrier Installation in Van Nuys process.
- Fix the roof first. A roof leak that’s sat on foil-faced material wastes the money. Seal leaks before installation, not after.
- Choose the product that fits, not the premium one by default. For many Valley attics, a perforated foil barrier is the correct, lower-cost choice. Paying more for a heavier product only makes sense where the roof assembly calls for it. We’ll explain the trade-off so you can decide.
- Get a baseline energy snapshot. Know what your attic is doing before and after. Pairing an air-sealing pass with the radiant barrier is often more cost-effective per dollar than the barrier alone.
- Schedule before peak season. Summer is when every Valley homeowner thinks about attic heat. Booking in spring or fall often means better availability and, sometimes, warmer treatment on scheduling.
Every project starts with a free estimate. We look at the attic, measure the space, and give you a written number that covers product, labor, and prep – no charge for the visit. Call (855) 382-3451 to set it up.
Why Thermal Insulation Co for Your Van Nuys Radiant Barrier?
We are a dedicated insulation contractor, not a generalist with a stapler. That means the recommendation you get is based on what your attic needs, not on the one product line in the truck. We install products from eight nationally recognized brands: Owens Corning, Johns Manville, Knauf, CertainTeed, and Rockwool for fiberglass and mineral wool, Icynene and Demilec for open- and closed-cell spray foam, and GreenFiber for recycled-content cellulose. When a radiant barrier is the right call, we’ll tell you. When your attic actually needs more bulk insulation, spray foam in a tricky assembly, or mineral wool near a combustion area, we carry it too. Eight brands. Three methods. One specialty. That’s our range, and it means the recommendation reflects your home’s real conditions – R-value targets, moisture, space – rather than inventory.
Attic work is a core part of what we do because the attic is where most homes lose the largest share of their heating and cooling. Radiant barrier is one piece of solving that. Visit our home page to see the full scope of attic and insulation services we handle across the Valley.
FAQs – Radiant Barrier Installation Cost
How much does radiant barrier installation cost in Van Nuys?
Most Van Nuys homeowners pay $1,800 to $3,400 for a standard single-story attic in 2026, or roughly $1.20 to $2.25 per square foot. Larger or two-story homes run $3,200 to $5,100. Call (855) 382-3451 for an exact quote on your attic – estimates are free.
Is radiant barrier cheaper than adding more insulation?
Per square foot, radiant barrier ($1.20 – $2.25) can be cheaper than adding spray foam, but it’s not a substitute for bulk insulation. It reflects radiant heat rather than slowing conductive heat loss. For an under-insulated Van Nuys attic, the better value is usually a combined radiant barrier plus blown-in insulation project ($3,400 – $6,800). We’ll tell you which your attic actually needs. Call (855) 382-3451 to sort it out.
Can you install radiant barrier the same day?
Yes for most standard single-story attics. A typical Van Nuys radiant barrier job is a one-day install, and we can often schedule within a few days of your free estimate. Larger or two-story attics may take two days. Call (855) 382-3451 to check availability.
Does radiant barrier pay for itself in Van Nuys?
It can lower attic heat gain and reduce strain on your AC in Valley summers, but we don’t promise specific percentage savings. The honest answer: results depend on how well your attic is insulated and ventilated already. Radiant barrier works best as part of a whole-attic upgrade. That’s why we quote it in context. Call (855) 382-3451 and we’ll walk you through what’s realistic for your home.
What’s the cheapest way to get radiant barrier installed?
Bundle it with an attic insulation upgrade and fix any roof leaks first – that avoids a second mobilization and keeps the barrier effective. A free estimate is the fastest way to know your real number. Call (855) 382-3451; there’s no charge for the assessment.
Written by Thermal Insulation Co, serving Van Nuys and the San Fernando Valley. Pricing reflects the Van Nuys market as of 2026. Thermal Insulation Co offers free estimates – call (855) 382-3451.
What Our Customers Say
"Plastic laid from the front door to the attic hatch and they vacuumed the hallway afterward."
— Gabriela Rodriguez"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."
— Maya Singh"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."
— Christine Park