Trusted Insulation Removal Nationwide
Insulation removal is the job of vacuuming out old, wet, contaminated or worn-out insulation so your attic or crawl space is clean, dry and ready for new material. When insulation has been soaked by a roof leak, nested in by rodents, or flattened by twenty years of settling, adding more on top only hides the problem. We’re Thistledown Attic Insulation, a Cedarwell-family company serving homeowners across the United States since 2003, and we write the price down before any work starts. Every call is answered by a live person, 24 hours a day, at (909) 768-6501.
Crawl Space Cleaning
Crawl space cleaning is the removal of damp insulation, debris, droppings and old vapor barrier scraps from the low space under your floor so the area can be dried, sealed and re-insulated properly. You need it when batts are sagging off the joists, when the space smells musty, or when pests have used the insulation as bedding. Thistledown Attic Insulation works in tight, awkward spaces with HEPA-filtered vacuums, bags everything where it lies, and carries it out through a protected path. Crawl space cleanouts typically run $700 to $2,500 depending on the size of the space, how low the clearance is, and how much material has fallen. Your written estimate covers removal and disposal, so nothing gets added after the fact. Once the space is clear, our crawl space insulation crew can close it up the right way.
Why Fallen Batts Matter
Insulation hanging off the underside of a floor does nothing for your heating bill. It also traps moisture against the subfloor, which is how soft spots and mold start. We pull the old material, check the joists and subfloor with a moisture meter, and tell you plainly what we find.
Photos of the Space Before and After
Most people never crawl under their house. We photograph the space before we start and again when it is empty, so you can see exactly what came out and what condition the wood is in.
Attic Insulation Replacement
Attic insulation replacement means taking out the old layer entirely and installing new insulation at the full depth your climate calls for. It is the right call when the old material is compressed, stained, uneven, or full of dust and droppings. Thistledown Attic Insulation removes the old fiberglass, cellulose or mineral wool first, air seals the attic floor, then installs fresh material to a written R-value target. A full attic replacement usually falls between $2,500 and $7,500 depending on square footage, how much old material is up there, and which new product you choose. You see that number on paper before we bring a hose or a vacuum up the ladder.
Removal First, Then Sealing
An empty attic floor is the one time you can see every gap around wiring, plumbing stacks and recessed lights. We seal those gaps before anything new goes down. If you want the full picture, read about our attic air sealing work, which is where most of the energy savings actually come from.
Choosing What Goes Back In
Your estimate names the product, the target R-value and the depth in inches. Many customers choose blown in insulation because it fills around framing without leaving voids, but we will quote batts or spray foam if your attic suits them better.
Moldy Insulation
Moldy insulation is any batt or loose fill that has grown mold or mildew because moisture got into the attic or crawl space and stayed there. You will notice dark spotting, a damp earthy smell near the attic hatch, or insulation that feels heavy and clumped. Thistledown Attic Insulation removes affected material with containment and HEPA extraction, treats the exposed wood, and helps you find the moisture source so the problem does not return. Removal of moldy insulation typically costs $1,200 to $4,000 depending on how much area is affected, and the written price includes bagging, haul-away and treatment of the framing.
Fix the Moisture or It Comes Back
Mold is a symptom. Bath fans venting into the attic, blocked soffit vents, roof leaks and warm air escaping from the living space all feed it. We trace the cause and tell you which fix matters most, even when that fix is not something we sell.
Safe for Occupied Homes
We set up barriers at the attic hatch, run negative air when contamination is heavy, and tell you how long to keep kids and pets out of the area. You will know the plan before we cut a single bag open.
Insulation Replacement
Insulation replacement covers swapping worn-out material anywhere in the house, including attic floors, knee walls, rim joists, garage ceilings and crawl spaces. You need it when old batts have lost loft, when rooms stay uneven in temperature, or when a past job used the wrong product for your climate. Thistledown Attic Insulation inspects each area, measures what is actually there, and gives you a single written price for removal and the new install together. Replacement projects commonly land between $1,800 and $6,000, with the final number set by square footage, access and the product you pick.
Attic Restoration
Attic restoration is the full reset of an attic that has been damaged by water, pests, smoke or neglect. It means removing contaminated insulation, cleaning the deck and framing, repairing what needs repairing, and rebuilding the insulation and ventilation so the space performs again. Thistledown Attic Insulation handles the removal, cleaning, sealing and re-insulation as one sequence with one written price, so you are not juggling three contractors. Restoration work typically runs $3,000 to $9,000 depending on the level of damage and the size of the attic.
What Gets Restored
We clear out damaged insulation, wipe or treat the roof deck and rafters, replace any rotted blocking we find, and make sure the vents are open. A clean, dry attic is the only kind that holds new insulation well.

Heat Control After the Cleanup
If summer heat is part of the complaint, we can add a radiant barrier under the roof deck while the attic is open and empty. It is far cheaper to do it now than to come back later.

What happens when you call
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A real person answersNo phone trees – you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Attic Cleanout
An attic cleanout is the removal of everything that should not be up there: old insulation scraps, nesting material, construction debris, dead pests and years of dust. You need it before new insulation goes in, after a pest problem, or when you are preparing a house for sale and want the inspector to find a clean attic. Thistledown Attic Insulation uses HEPA-filtered extraction, bags debris in place and removes it through a protected path with drop cloths down the whole route. Attic cleanouts typically cost $800 to $2,500 depending on contamination and attic size, quoted in writing before we start.
Pest Cleanup Done Properly
Rodent droppings and urine soak into insulation and leave odor and bacteria behind. We remove the contaminated layer, sanitize the exposed surfaces, and point out the entry holes so you can have them closed before anything new goes in.
Pricing You Can Plan Around
Whole-attic insulation removal alone usually costs $1,000 to $3,000. The number depends on attic size, the type of insulation and how dirty it is. You get one figure in writing and it is the figure on your invoice.
Where We Work
Thistledown Attic Insulation serves homeowners and businesses across the United States through local crews who carry the same Cedarwell Care Promise into every home. Our teams arrive in uniform, cover floors before they walk, explain prices before they work, and photograph the cleanup before leaving. Wherever your attic or crawl space is, the standards stay the same.
Frequently Asked Questions About Insulation Removal
Most attic insulation removal jobs fall between $1,000 and $3,000, depending on attic size, insulation type and how contaminated it is. Crawl spaces and heavy mold cases can run higher. Call (909) 768-6501 and you get an exact written price before any work begins.
Not always. Dry, clean insulation in decent shape can often stay and be topped up. If it is wet, moldy, full of droppings or badly compressed, it should come out first, because new material over a bad layer carries the problem forward.
It can be. Mold spores spread through the house with normal air movement, and wet insulation keeps feeding the growth. We remove it with containment and HEPA extraction, then help you correct the moisture source so it does not return.
A typical attic takes four to eight hours. Larger homes, heavy contamination or a combined removal and re-insulation job can take a full day or two. We give you the schedule when you call and the arrival window is honest.
We bag it where it sits, carry it out through a protected path and haul it away. Contaminated material is handled and disposed of according to local rules. You never have to deal with a pile in your driveway.
Yes. Every job is covered by our 365-Day Done Right Promise. If it is not done right, we make it right with no fine print.
Schedule Your Insulation Removal Today
Call (909) 768-6501 and a live person answers, any hour, any day. Tell us what is going on in the attic or crawl space and we will schedule an inspection with a background-checked technician, give you a written price before any work starts, and back the whole job with our 365-Day Done Right Promise. The estimate is free and the cleanup is photographed. Call us today.
Written by Neil Barron, Owner at Thistledown Attic Insulation, serving homeowners across the United States since 2003.