WOW Construction Group — Los AngelesConstructionGroup
Los Angeles • Home Insulation

Stop Air-Conditioning The Street.

Attic, wall and crawl space insulation, air sealing, radiant barrier and soundproofing for Los Angeles homes — old material removed, R-38 put back, and the hot room finally fixed.

Home Insulation in Los Angeles by WOW Construction Group
What's included

Your Home Insulation Options

Attic Insulation (Remove & Replace)

Old settled or contaminated material vacuumed out, the attic sanitized, then re-insulated to a full R-38 blanket. The single cheapest comfort upgrade in an LA house.

Wall Insulation

Dense-pack blown-in through the exterior, or batts installed while walls are open during a remodel. R-13 to R-15 in a standard 2x4 wall.

Crawl Space & Floor Insulation

Clean-out, vapor barrier, and insulated subfloor so the cold, damp air under the house stops coming up through the floors.

Air Sealing

Can lights, top plates, plumbing chases and rim joists sealed shut. Insulation only works once the air stops moving through it.

Radiant Barrier

Reflective foil under the roof deck that can pull 20–30°F off attic temperature during an LA heat wave.

Soundproofing

Dense mineral wool, resilient channel and double drywall for bedrooms, home offices and media rooms on busy streets or under a flight path.

Attic & Crawl Space Clean-Out

Full decontamination and removal of old, dusty or rodent-damaged insulation — with or without new material going back in.

Rodent Proofing

Every entry point sealed with hardware cloth and mortar while we're already up there, so nothing moves back into the new insulation.

Lot to keys

How The Build Actually Goes

Six stages, no mystery. Most LA custom homes run 10–12 months from first lot walk to move-in, depending on city requirements.

  1. Stage 01

    Free Home Assessment

    We walk the attic, crawl space and problem rooms, measure existing R-value and write down what's actually wrong.

  2. Stage 02

    Scope & Number

    A written scope with real ranges — remove-and-replace versus top-off, and which rooms actually need work.

  3. Stage 03

    Protect & Remove

    Floors and pathways covered, old material vacuumed out and bagged, attic sanitized.

  4. Stage 04

    Seal & Rodent-Proof

    Air sealing at every penetration, entry points closed off, ducts checked before anything covers them.

  5. Stage 05

    Insulate

    Blown-in or batt installed to depth, baffles at the eaves so the attic still breathes, radiant barrier if specified.

  6. Stage 06

    Verify & Clean Up

    Depth markers photographed, everything hauled away, and a before/after packet for your records and any rebate.

The work, up close

Real Work, Real LA Homes

Not stock art. Actual projects our crews have delivered across Los Angeles.

Blown-in insulation going down to a full R-38 depth — Home Insulation by WOW Construction Group in Los Angeles
Blown-in insulation going down to a full R-38 depth
Wall cavities packed tight while the drywall is off — Home Insulation by WOW Construction Group in Los Angeles
Wall cavities packed tight while the drywall is off
Crawl space cleaned, vapor-barriered and re-insulated — Home Insulation by WOW Construction Group in Los Angeles
Crawl space cleaned, vapor-barriered and re-insulated
Can lights and top plates sealed before a single inch goes in — Home Insulation by WOW Construction Group in Los Angeles
Can lights and top plates sealed before a single inch goes in
Radiant barrier under the roof deck — the LA sun's worst enemy — Home Insulation by WOW Construction Group in Los Angeles
Radiant barrier under the roof deck — the LA sun's worst enemy
Sound batts and resilient channel in a Westside media room — Home Insulation by WOW Construction Group in Los Angeles
Sound batts and resilient channel in a Westside media room
Why bother

What You Get Out Of It

  • Typically 10–30% off heating and cooling costs — before you add a single panel
  • Kills the hot room: even temperatures from the front bedroom to the back addition
  • A tighter house needs a smaller AC and a smaller solar array, so everything after costs less
  • Quieter interiors — insulation cuts street, neighbor and freeway noise
  • Cleaner air: sealed ceilings stop pulling attic dust into your rooms
  • Non-toxic, eco-friendly materials specified by default
  • Rebate- and tax-credit-eligible products with the paperwork handled
  • Cheapest possible timing when bundled into a remodel with walls already open
Rebates & incentives

Money You Can Claim On This Job

These are live Los Angeles rebates that apply to this work — checked against the agency that actually pays them, August 5, 2026. We pull and close the permits that release them, and hand you the paperwork at no charge.

LADWP

Attic insulation

$0.50 per sq ft

For insulation above R-19 ($0.30 per sq ft at R-19 or below). The home must have air conditioning. One rebate per residence every fifteen years.

Official program page

LADWP

Cool roof

$0.20 – $0.60 per sq ft

Low-slope roofs need an SRI of 78 for the lower tier, 85 for the higher. Steep-slope roofs need SRI 20 and 35. LA's Green Building Code already requires the lower tier on most reroofs, so you may qualify without changing your plan.

Official program page

LADWP Water

Home Energy Improvement Program

No cost

LADWP techs do an energy assessment and install efficiency measures directly. One per property.

Official program page
See every live LA rebate

Funding is limited and first come, first served. Not tax advice.

They pulled out forty years of dust, sealed the ceiling and re-insulated in two days. Upstairs finally matches the rest of the house and the bill dropped the first month.
Homeowner, Sherman Oaks
Ballpark budgets

What It Usually Runs

Real ranges from recent LA jobs so you know where you stand before we ever walk the yard. Your exact number comes from a site visit.

Attic top-off (existing insulation stays)

$1,800–$3,500

Adding depth over sound existing material on a typical 1,200–2,200 sq ft LA home.

Attic remove & replace

$2,500–$8,200

Old material removed and disposed, attic sanitized, re-insulated to code.

Attic or crawl space clean-out only

$2,500–$7,200

Full clean-out and decontamination with no new insulation going back in.

Rodent proofing

$2,500–$6,100

Every entry point sealed so they stay out for good.

Soundproof one room

$5,000–$15,000

Walls and/or ceiling treated — depends on how quiet you want it.

Radiant barrier

$1,500–$4,000

Foil installed under the roof deck across a typical attic.

FAQ

Questions People Actually Ask

Proof is in the pink

The WOW Wall

Our best-looking work across every trade — kitchens, pools, facades, gardens. If it's on this wall, it got the pink stamp.

Where we do this

Home Insulation across Los Angeles County

Home Insulation pays back fastest where the bills hurt most — the inland Valley and the foothills. We handle LADWP and SCE territories, and we know which rebates each one actually honors.

  • Encino
  • Sherman Oaks
  • Studio City
  • Tarzana
  • Pasadena
  • South Pasadena
  • Altadena
  • La Cañada Flintridge
  • Hollywood
  • Hollywood Hills
  • West Hollywood
  • Los Feliz
See our full coverage map →
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