Knauf Insulation Removal & Replacement in Tustin: What to Know First
We provide independent Knauf insulation removal and replacement in Tustin, with most attic jobs completed in one day and a written price delivered before any work starts. Typical turnaround from call to crew on-site is 24-48 hours for standard removals, 48-72 hours if vermiculite or heavy contamination is involved. We’re not going to tell you to call for pricing - Haven Standard Clause 1 means you get a flat, written price and scope before anyone lifts a tool.
This page is for Tustin homeowners who’ve found Knauf insulation in their attic, walls, or crawl space and need it out. Maybe it’s compressed below labeled R-value, contaminated by rodents, or you’re remodeling and need a clean envelope before new material goes in. Call (657) 286-7673 - a live person answers, 24/7.
How Knauf Products Fail - and How We Fix Them
- Knauf EcoBatt with ECOSE Technology - density loss in Tustin’s heat. The brown, formaldehyde-free binder softens when attic temperatures hit 140°F repeatedly, which happens in Tustin Legacy homes with dark shingle roofs and limited soffit ventilation. The batts slump off top plates and leave gaps. We remove the degraded material, seal the top plates and penetrations with fire-rated caulk and rigid blocking, then reinstall to full thickness with proper ventilation baffles.
- Knauf Jet Stream Ultra blown-in fiberglass - settlement below labeled R-value. This loose-fill product is rated at R-2.5 per inch settled, but we’ve measured attics in Tustin Ranch where 14 inches had compressed to 9 inches after five to seven years of foot traffic, storage, and thermal cycling. The fix isn’t adding more on top - it’s full removal, air sealing the attic floor, then reinstalling to current Energy Code height with density-checked blowing.
- Knauf Insulation Board (rigid XPS/fiberglass composite) - moisture trapping at rim joists. In Tustin’s older crawl spaces, particularly in the historic district near Old Town, these boards were cut and wedged against foundation walls without vapor management. The facing delaminates; the board holds moisture against sill plates. We remove, assess the rim joist for rot, install a proper vapor barrier if the crawl’s being encapsulated, and replace with material matched to the new assembly.
- Knauf acoustic batts in interior walls - rodent nesting and waste saturation. The unfaced, lower-density batts installed for sound control between bedrooms make ideal nesting material. In Tustin homes near Peters Canyon, where roof rat pressure is seasonal, we’ve pulled out batts that were 40% fecal matter by visual estimate. Full removal, HEPA vacuuming of the cavity, rodent proofing at the top plate and eave intersections, then replacement with faced or mineral wool product depending on fire-rated assembly requirements.
- Knauf blown-in wall system (BIBS-compatible) - installer gaps and settling at headers. The blown-in cavity fill depends on mesh retention and proper density. We’ve found headers over Tustin’s ubiquitous sliding glass doors where the material never filled the full cavity - the mesh tore, the installer didn’t catch it, and the header has been thermally bypassed for fifteen years. We open, remove, inspect the cavity, seal the header box with spray foam or rigid board, and re-dense-pack to 3.5 lbs per cubic foot.
Our Knauf Insulation Removal & Replacement Process

- 1
Call and scheduling. A live person answers. We book a site visit, usually next-day in Tustin. You’ll get a text with the technician’s name when they’re en route - Haven Standard: Arrive on schedule, you get a named technician.
- 2
Attic or cavity inspection with photo documentation. We photograph the existing Knauf product, note the series if identifiable, check for contamination, compression, or moisture damage, and run a blower-door test if the attic is accessible - pressurizing the house to measure air leakage in CFM50, cubic feet per minute at 50 pascals of pressure.
- 3
Written price and scope delivered on site. Flat price, written warranty, 365-Day Done Right Promise - before any work starts. No exceptions. Free Second Opinion on any competing written estimate you bring us.
- 4
Removal and air sealing. Knauf material comes out by hand, vacuum, or bagged removal depending on contamination level. We seal all top plates, can lights, penetrations, and chimney chases before any new insulation goes in. Seal the leaks first. Then insulate. The R-value on the bag means nothing if conditioned air is moving through the gap around that recessed can.
- 5
Replacement and verification. New material installed to spec - R-38 in attics, R-13 in walls, per 2022 California Energy Code. Final blower-door test on applicable jobs; before-and-after numbers published in your job record. Documented Photo Record delivered by email before the crew leaves.
- 6
Cleanup and documentation. HEPA vacuuming of work areas, magnetic sweep for fasteners, written R-value report and thermal images for your files - paper to hand a future buyer or HVAC contractor.
Before
AfterWhat Knauf Insulation Removal & Replacement Costs in Tustin
Most attic insulation removals in a Tustin single-family home run $1.80 to $3.40 per square foot of attic floor, including bagging and disposal of standard Knauf fiberglass. Contaminated removal - rodent waste, mold, or vermiculite - runs $3.50 to $6.00 per square foot due to PPE, HEPA containment, and specialized disposal.
Replacement with new Knauf or comparable product adds $1.50 to $4.00 per square foot depending on material type: blown-in fiberglass at the low end, mineral wool or spray foam at the high end. Wall cavity removal and re-dense-pack in Tustin’s typical 2×4 construction runs $2.20 to $3.80 per square foot of wall area.
What moves the price: attic accessibility (scuttle vs. pull-down stairs), contamination level, whether air sealing is included (it always is with us), and material choice. We don’t do removal-only jobs - an unsealed, empty attic is worse than a poorly insulated one.
Call (657) 286-7673 for a written estimate. Estimates are free, and we publish the price before anyone starts.
Why Tustin Homeowners Call Topside Attic Insulation Tustin for Knauf Work

We’ve been independently owned and operated under The Haven Standard since 2016. Wes Okafor and our crew have logged serious hours in Tustin Legacy, where post-redevelopment housing stock made blower-door testing a baseline step, not an afterthought. We know Knauf’s product lines because we’ve pulled them out, measured their degradation, and documented what replaced them.
Every job gets the 365-Day Done Right Promise, a written scope and warranty before work starts, and a Documented Photo Record after. We also service Reflectix and other brands - no proprietary lock-in means you get material matched to your assembly, not our supplier relationship. Background-checked, uniformed technicians. Calls answered live, 24/7. No voicemail loops.
FAQs
Knauf’s product warranty covers manufacturing defects, not installation or removal by third parties. As an independent Knauf service provider, we document the condition of existing material with photos before removal, which protects you if a defect claim arises later. We do not represent Knauf and cannot file warranty claims on your behalf. Call (657) 286-7673 if you need documentation guidance.
We source current Knauf products through standard distribution when the job spec calls for them - EcoBatt, Jet Stream Ultra, and Insulation Board are regularly available in Southern California. We also specify Johns Manville, Owens Corning, Rockwool, or other brands when the assembly or your preference calls for it. No proprietary lock-in. We’ll show you the product data sheets and let you decide.
Repair - spot-filling settled areas or patching rodent damage - is rarely cost-effective with blown-in or batt products. The disturbed area never matches density or thermal performance with the undisturbed material, and you miss the air sealing opportunity. Full removal and replacement with verified R-value and blower-door numbers is the better investment in Tustin’s climate, where attic temperatures stress material year-round. We’ll show you both numbers on paper before you decide.
Most standard attic jobs are one day: removal in the morning, air sealing midday, replacement by late afternoon. Contaminated jobs or full-cavity wall work may run two days. We schedule within 24-48 hours for standard removals, 48-72 hours if hazmat protocols apply. Call (657) 286-7673 - a live person will check current crew availability and give you a firm date.
You receive a written scope completion checklist, before-and-after blower-door readings on applicable jobs, thermal images of the installed insulation, a written R-value report citing the 2022 California Energy Code section that applies to your assembly, and the 365-Day Done Right Promise in writing. Everything is emailed as PDF before the crew leaves. This is standard on every job, not available on request.
Written by Wes Okafor, Owner, Topside Attic Insulation Tustin at Topside Attic Insulation Tustin, serving Tustin and nearby areas.