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Grizzly Insulation Co

Lakewood Insulation  ›  Blown-In Insulation

Blown-In Insulation in Lakewood, CO

In Lakewood, postwar ranches around Belmar and mid-century homes, decades-old attic insulation sits thin and compacted. Blown-in restores even, full-depth coverage to the rated R-value.

Your Front Range crew

Based in Commerce City, serving Lakewood and the metro

Where does your attic actually stand?

An attic’s real R-value comes from consistent depth across every rafter bay, not just what’s visible near the hatch, a Lakewood attic with settled, patchy, or wind-washed loose-fill can look insulated while performing at half its rated value. For Climate Zone 5B, we install to the R-49 to R-60 target, which means enough evenly distributed cellulose or fiberglass to hold up through both August heat and January cold.

Bare or stripped attic, R-0
Older Front Range attic, R-19 to R-30
Zone 5B attic minimum, R-49
Grizzly blown target: attic R-49 to R-60
TRUSTED PRODUCTS & PARTNERS

The Brands Behind Every Grizzly Install

No unmarked bags or unknown blends go into your attic. Every Lakewood home we insulate gets the same trusted, code-recognized cellulose and fiberglass loose-fill.

01THE PROBLEM

The Attic Problems Blown-In Insulation Quietly Solves.

Lakewood’s housing stock spans two eras that both cause attic trouble: original postwar ranches in Belmar, Green Mountain, and Eiber whose attic insulation has compacted and settled over sixty-plus years, and newer infill homes that were insulated to minimum code and never topped off. Either way, the symptoms look the same, rooms that overheat in summer, cold floors in winter, and ice dams building along the eaves after a snow. It’s almost never the furnace or AC struggling; it’s an attic floor that’s under-depth, gappy, or leaking conditioned air around can lights and the attic hatch. Chasing comfort with a bigger HVAC system just masks what the insulation should be handling.

A · Attics still sitting at an old R-19 to R-30

Bonus rooms and home offices framed above an attached garage sit over unconditioned space, so heat drains through the floor while the garage pulls it away below. You get cold floors, a room running 10–15° off the rest of the house, and a furnace that never catches up. We insulate the floor joists, knee walls, and sloped ceilings, then air-seal the garage ceiling and rim.

B · Loose-fill that has settled, thinned, or gone flat

Most Lakewood basements, the brick ranches east of Wadsworth, the split-levels around Lake Arbor, have bare concrete or block foundation walls. Finishing that basement without insulating the walls first buys you a cold, clammy room and a heating bill to match. Blown-Ins in the new stud walls, with the correct vapor retarder, turn it into comfortable, usable square footage.

C · Bare patches, gaps, and wind-washed eaves

Additions, pop-tops, and finished attic conversions are often framed to the minimum of their day, or never insulated in the walls at all. That leaves one part of the house always chasing the thermostat. Filling the wall, floor, and rafter cavities with properly sized blown-in insulation brings the new space up to the same comfort as the original home.

D · Ice dams and a top floor that never holds heat

Insulation isn’t only about temperature. Blown-Ins packed into interior walls and between floors cut the sound that travels between a media room and the bedrooms, an office and the living room, or upstairs and down. Mineral wool does this best. It’s a small add during a remodel that quietly changes how the whole house feels.

02THE FIX

Cellulose or Fiberglass. One Honest Recommendation.

Every Lakewood job starts with us actually getting into the attic, checking current depth, spotting moisture or pest damage, and finding where air is escaping around plumbing stacks, wiring, and the attic access. We air-seal those points and install eave baffles so soffit ventilation keeps working, then recommend dense-packed, borate-treated cellulose or settle-resistant, moisture-tolerant fiberglass depending on what your specific attic calls for.

 Blown CelluloseMost walls & floorsBlown FiberglassThe fire & sound upgrade
How it worksRecycled cellulose blown evenly across the attic floor to R-49–R-60Blown fiberglass that resists moisture and settles less over time
Best forAttic floors, topping off thin insulation, low-slope atticsDamp-prone attics and homes that want minimal settling
Install time A few hours for most attics1–2 days
Cost per R-value LowestHigher upfront, fire & sound benefit
Air sealing Rim & top plates sealed first Rim & top plates sealed first
Pest deterrence Borate-treated options available, Naturally fire-resistant
Eco profile Recycled-content material, Sand & recycled glass
Our verdict: the right answer for most attic insulation and top-off projects.
When foam wins: a vaulted or cathedral ceiling with no attic access. See spray foam in Lakewood.
03WHAT TO EXPECT

A Half-Day Inside. Here's How It Goes.

Most Lakewood blown-in jobs run from an initial walk-through and attic check through air-sealing, baffle installation, the blow itself, and a final depth-check, typically wrapped up in a few hours. You’ll know exactly what depth was achieved before we leave.

STEP 1 · PREP
Walkthrough & protection

We confirm the plan from your assessment, then protect floors and finishes around the work area.

STEP 2 · AIR-SEAL & BAFFLE
Air-seal & set baffles

We air-seal top plates, can lights, and the attic hatch, then set baffles at the eaves so airflow cannot wind-wash the new insulation.

STEP 3 · BLOW TO DEPTH
Blown to marked depth

Loose-fill is machine-blown evenly across the attic floor to the marked depth, filling every gap around joists, ducts, and penetrations.

STEP 4 · DEPTH CHECK
Depth verified corner to corner

We check coverage against depth-ruler cards staked across the attic so you hit the rated R-value corner to corner.

STEP 5 · WALKTHROUGH
Cleanup & final walk

We vacuum up, haul away offcuts, and walk every cavity with you before we leave.

The Grizzly 100% Guarantee

If the work isn't right, we make it right. That's the reputation we've built across the Front Range, and it's our only sales pitch.

04COST & SAVINGS

What Blown-In Insulation Costs in Lakewood

Pricing on Lakewood attics varies more than people expect, mainly because of attic square footage, how much depth is needed to hit target R-value, the scope of air-sealing, and whether old insulation is soiled or matted enough to require removal first. We put all of that into an itemized quote so there’s no guessing.

Attic square footage

The attic floor area we cover to target depth

Current attic R-value

How far your attic sits below the Zone 5B target

Air-sealing & baffles

Top plates, can lights, hatch, and eave baffles

Removal needs

Only if material is soiled or damaged

Three ways the net cost drops

Xcel Energy rebates

Qualifying insulation + air-sealing upgrades earn utility rebates across Lakewood. We flag what applies in your estimate.

Federal 25C tax credit

30% of qualifying insulation costs, up to $1,200 per year, under the Inflation Reduction Act.

Lower bills, every month

Heating and cooling dominate Front Range energy bills, and unconditioned walls and floors are among the highest-impact upgrade point in most Lakewood homes.

★ ★ ★ ★ ★

We bought our place in Green Mountain knowing the attic insulation was original to the house, and it showed, ice dams every winter and a bedroom that never cooled off in summer. Grizzly air-sealed around the can lights and topped the attic to full depth, and this past winter we didn't get a single icicle off the eaves.

D
David R.
Homeowner, Green Mountain, Lakewood · Blown-In Insulation
05QUESTIONS

Blown-In Insulation in Lakewood, Answered Straight

Prefer to just ask?

Call the crew that’s going to be up in your Lakewood attic, (303) 854-6221, for a free, no-pressure assessment.

Blown-in insulation is loose-fill cellulose or fiberglass machine-blown across the attic floor to a specific measured depth, filling gaps and irregular spaces that rigid panels can’t reach. It’s an attic-floor product, distinct from batt insulation used in wall cavities, which makes it well-suited to Lakewood’s mix of original postwar attics and newer infill roofs.

Neither material is universally better, it depends on your Lakewood attic’s condition and needs. Cellulose dense-packs well and resists air movement, which helps in older Belmar-area homes with lots of small gaps, while fiberglass won’t settle over time and tolerates occasional moisture, which can matter in homes with less-than-perfect ventilation. We inspect first and recommend one, not both.

In most cases, yes, we can blow new insulation directly over existing attic insulation as long as it’s dry, uncontaminated, and not matted down. If it’s been compressed by decades of use or shows signs of moisture or pest damage, we’ll recommend removing it before installing new material.

Lakewood sits in Climate Zone 5B, where the attic target is R-49 to R-60. That typically translates to roughly 14 to 17 inches of evenly distributed loose-fill, which is deeper than what many original Lakewood attics were built with decades ago.

Yes, loose-fill insulation settles somewhat in its first year after installation, and older material in Lakewood’s postwar homes has often settled well beyond that, losing real R-value over the decades. Wind-washing near soffit vents and disturbance from attic storage can thin coverage further, which is why periodic depth-checks matter.

Blown-in is the right call for attics like most of Lakewood’s, irregular framing, existing insulation to top off, and plenty of wiring or ductwork to work around. Batts fit better in open, accessible wall cavities or new construction, while spray foam makes sense for unvented roof assemblies or homes where air-sealing and moisture control matter as much as R-value.

07GET STARTED

Find Out How Much Heat Your Attic Is Losing.

Backed by our 100% guarantee, so the job’s done right the first time.

Get Your Free Blown-In Quote

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