Net & Blow Insulation

Net & Blow Insulation in Granada Hills

One of the highest-performing wall insulation systems available — dense-packed to contour around plumbing, wiring, and framing for near full real-world R-value.

Near Full Real-World R-ValueADUs & New ConstructionDense-Pack Specialists
Net & blow insulation installation in Granada Hills
15+Years Experience

Why Net & Blow Insulation Matters in Granada Hills

Net and blow densely fills wall cavities and contours around plumbing, wiring, and framing — delivering near full real-world R-value. It's an excellent choice for ADUs, new construction, remodels, and vaulted ceilings.

The process starts by installing a specialized fabric netting across the wall framing. The netting is stretched tightly and stapled extensively to create a containment system, then insulation is blown into the cavity through a hose under controlled pressure until it is completely filled. The end result is a dense, fully filled insulation system that contours around everything inside the wall.

Better Than Batt in Real Walls

Modern walls are crowded — between plumbing lines, electrical and low-voltage wiring, blocking, framing changes, and irregular stud spacing, there are a lot of obstacles. Pre-cut batt struggles because every obstacle creates gaps, compression points, air pockets, and uneven coverage. Net and blow naturally wraps around and fills the shape of the cavity.

Real-World R-Value Performance

Batt has a nominal R-value, so real-world performance is often significantly lower because of gaps, compression, and air movement. Net and blow densely and consistently fills the cavity — in a standard 2x6 wall, a properly installed system can achieve the full performance potential of an R-24 wall system.

Finished net and blow wall cavities densely filled in Granada HillsNear full
R-value
The Payoff

What Net & Blow Insulation Delivers

Near Full R-Value

The cavity is densely and consistently filled, helping achieve the full performance potential a wall system was designed for — not just the number printed on the package.

Lower Utility Bills

Heating and cooling is typically the second largest expense in homeownership after the mortgage. A properly insulated home reduces those costs every month for the life of the building.

Longer HVAC Lifespan

A higher-performing system helps extend the lifespan of your HVAC by reducing how often it has to run to keep the home comfortable.

Comfort & Sound Control

A properly insulated wall system improves comfort, reduces temperature swings, improves sound control, and helps protect plumbing lines inside exterior walls.

Fits Complex Framing

The insulation contours around plumbing, electrical wiring, framing, and other obstacles — ideal for homes with complex layouts where batt leaves gaps.

Better Long-Term Value

Slightly higher upfront cost than batt, but significantly better long-term value — one of the best overall upgrades for homeowners planning to stay long term.

Our Process

Our Net & Blow Process

Net and blow is highly dependent on proper installation technique — here's how we get it right.

1

Install the Netting

We stretch a specialized fabric netting tightly across the wall framing and staple it extensively to create a strong containment system for the insulation.

2

Dense-Pack the Cavity

Insulation is blown into the cavity through a hose under controlled pressure and density until it is completely filled — like pouring water into an ice cube tray, it flows and fills every part of the shape.

3

Contour Around Obstacles

The insulation naturally wraps around plumbing, wiring, blocking, and irregular framing, eliminating the gaps and compression points that hurt batt performance.

4

Verify Even, Solid Fill

Done properly, the cavity forms a solid, fully filled wall with very few gaps or air pockets — the dense, consistent fill that delivers near full real-world R-value.

Ready for a more comfortable, efficient home?

Reviews

What Granada Hills Homeowners Say

★★★★★

"Luke at Hunter's Insulation was awesome! Super knowledgeable and easy to work with. He explained the best insulation options and helped me make the right choice for my home. Really appreciate the honest advice—highly recommend!"

M
Manuel LunaGoogle Review
★★★★★

"Luke was easy to work with and educated me, as insulation was not something I had any knowledge of. In the end, I got exactly what I needed at a very fair price. Luke and his crew were very professional and did great work at my home."

B
Bridget HollandGoogle Review
★★★★★

"Luke was very thorough in explaining all the details of the work, including why various steps are needed. I check EVERYTHING told to me, and he was absolutely dead-on correct on all the details. His crew kept the place very clean and tidy."

R
Ruth Ellen SeidGoogle Review
FAQ

Net & Blow Insulation FAQs

What is net & blow insulation?
It's a high-performance system commonly used in new construction and major remodels. We install a specialized fabric netting across the wall framing, stretch it tightly and staple it extensively, then blow insulation into the cavity under controlled pressure until it's completely filled — creating a dense, fully filled wall.
How is it better than batt insulation?
Batt comes in pre-cut pieces, but real walls are crowded with plumbing, wiring, blocking, and irregular framing. Those obstacles create gaps, compression, and air pockets in batt. Net and blow naturally wraps around and fills the shape of the cavity, giving far better real-world coverage.
Does net & blow really reach its full R-value?
Because the cavity is densely and consistently filled, net and blow gets much closer to the rated potential than batt. For example, in a standard 2x6 wall, a properly installed net and blow system can achieve the full performance potential of an R-24 wall system.
Is net & blow good for ADUs and new construction?
Yes — it's especially popular in ADUs, new construction, custom homes, and high-performance remodels. Heating and cooling is typically the second largest homeownership expense after the mortgage, so a properly insulated home pays back every month for the life of the building.
Can it be used in vaulted ceilings or flat roofs?
It can. Net and blow systems can be installed in vaulted ceilings, flat roof assemblies, and complex framing. When designed properly with the correct vapor barriers and ventilation, these applications perform extremely well — they're often more labor intensive but still provide excellent long-term value.
Does it cost more than batt insulation?
It has a slightly higher upfront cost than traditional batt. However, over the lifespan of the building it often saves significantly more through lower utility bills, better comfort, and reduced wear on the HVAC system. For homeowners staying long term, it's one of the best overall value upgrades available.
Get Your Free Estimate

Get Your Free Estimate

Every home is different. Schedule a free, no-pressure evaluation and we will recommend what makes the most sense for your house, goals, and budget.

Get Your Free Estimateor call (818) 979-5857