Owens Corning Wall Insulation in Palo Alto: What to Know First
We provide independent Owens Corning wall insulation service in Palo Alto, with most jobs scoped and priced within 48 hours and completed in a single day. Our written price lands before any work starts, and every job closes with a documented photo record of what we found and what we fixed. This page is for homeowners who already have Owens Corning materials in their walls and need to know whether to repair, replace, or upgrade - and what that actually costs in this market. Call (650) 352-3577 to schedule a free estimate or bring us a competing written quote for our free second opinion.
How Owens Corning Products Fail - and How We Fix Them
- Owens Corning EcoTouch PINK Fiberglas settling in older Palo Alto ranch walls. The loose-fill blown-in product we find in many Midtown and Professorville homes from the 1960s and 70s has settled 30-40% below the top plate, leaving a cold zone at the ceiling line. We remove the degraded material, seal the top plate and electrical penetrations with fire-rated caulk and foam, then dense-pack with fresh OC ProPink L77 loose fill to the full stud cavity.
- Owens Corning Foamular XPS rigid board gaps at the perimeter. In the tighter new builds near Barron Park where builders used Foamular sheathing, the 4×8 sheets often ship-lap poorly at corners and window bucks, creating thermal bypasses. We pull back siding where accessible, fill the gaps with low-expansion foam, and tape seams with Owens Corning JointSealR foam tape - or switch to Rockwool Comfortboard where the assembly needs better vapor management.
- Owens Corning Thermafiber mineral wool moisture retention in coastal-exposed walls. Homes on the west side of Palo Alto, near the foothills where fog sits longer, can see Thermafiber safing or cavity insulation hold moisture against the sheathing. We diagnose with a moisture meter and borescope, replace only the affected batts, and upgrade the drainage plane with a compatible housewrap before reinstalling.
- Owens Corning ProCat loose-fill bridging in balloon-framed walls. The 1920s Craftsman homes around Old Palo Alto have continuous stud bays from basement to attic; ProCat blown in from the attic often bridges at fire blocking, leaving the lower wall empty. We drill and fill from the interior at each floor level, using a tube-fill method that breaks the bridge and packs the cavity to 3.5 lbs per cubic foot density.
- Owens Corning AttiCat system hose residue contaminating wall cavities. When previous contractors used AttiCat equipment for wall work without switching to the smaller-diameter wall hose, the overspray and clumping creates voids behind the drywall. We scope the cavity, extract the clumped material, and re-install with a proper sidewall injection rig sized for 2×4 or 2×6 framing.
Our Owens Corning Wall Insulation Process

- 1
Call and scope. A live person answers at (650) 352-3577, 24/7. We schedule a site visit, usually within 24-48 hours in Palo Alto.
- 2
Diagnostics and blower-door baseline. We run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing. We borescope wall cavities, check for settled or bridged insulation, and photograph every finding.
- 3
Written price and material spec. You get a flat price, written scope, and written warranty before anyone lifts a tool. Haven Standard Clause 1. We specify Owens Corning, Johns Manville, Knauf, Rockwool, or another material based on what the assembly actually needs - no proprietary lock-in.
- 4
Air sealing first, then insulation. Seal the leaks first. The insulation has nowhere to work if the air is moving around it. We seal top plates, electrical boxes, and penetrations before any new material goes in.
- 5
Install and document. The crew installs to the specified R-value, photographs every critical step, and runs a post-work blower-door test on jobs where air sealing was scoped.
- 6
Closeout package. You walk away with the written pre- and post-installation report: R-value achieved, air-sealing locations with photos, and final blower-door result if tested. Plus our 365-Day Done Right Promise in writing.
What Owens Corning Wall Insulation Costs in Palo Alto
Most drill-and-fill wall insulation jobs in a typical Palo Alto single-story ranch run between $3,200 and $5,800. Two-story homes with continuous balloon framing or hard-to-access cavities typically land between $5,500 and $9,400. Exterior wall insulation with siding removal and replacement starts around $8,500 and scales with square footage and cladding type.
What moves the price: cavity access (interior drywall cut-and-repair versus exterior siding pull), existing material removal, fire-blocking complexity in older framing, and whether the job includes air sealing or stands alone. We do not price over the phone without seeing the assembly. Call (650) 352-3577 for a written estimate - they’re free, and we honor our free second opinion on any competing written quote you bring us.
Why Palo Alto Homeowners Call Topside Attic Insulation Palo Alto for Owens Corning Work

We’ve sealed and insulated over 9,000 homes since 2016, every one with a written price before work started and a documented record when the crew left. Our techs know Owens Corning’s full product line - from vintage PINK Fiberglas to current ProPink and Thermafiber specs - and we source materials from Owens Corning, Johns Manville, Knauf, Rockwool, and others so we’re never pushing a product that doesn’t fit the wall assembly. As an independent Owens Corning service provider, we are not affiliated with or authorized by Owens Corning, which means our material recommendation is based on your home’s needs, not a factory quota. Our 365-Day Done Right Promise applies to every completed job. Wes Okafor trains every technician on combustion-safety checks before closing any job with attic gas appliances - because depressurizing a house without verifying flue draft first is how carbon monoxide problems start.
FAQs
No - wall insulation work performed by a qualified contractor does not void Owens Corning’s product warranty, which covers manufacturing defects in the original material, not installation or subsequent modifications. We document the existing product label and install date when visible so you retain your warranty chain. Call (650) 352-3577 if you need help locating your original documentation.
We can often source the identical Owens Corning spec - EcoTouch, ProPink, Thermafiber, or Foamular - though discontinued lines may require a functionally equivalent substitute. We note any substitution in writing before work begins, with the performance data to back it up. Bring us your existing estimate and we’ll review it with you, no charge.
Spot repair is cheaper upfront - typically 40-60% less than full replacement - but only makes sense if the remaining insulation is dry, uncontaminated, and accessible. In Palo Alto’s older homes, we often find rodent activity, moisture staining, or degraded facing that makes full removal the better long-term value. We photograph what we find and price both options in writing so you decide with the facts.
Most jobs are completed in one day; complex exterior work or homes with lathe-and-plaster interior walls may run two days. We schedule within 24-48 hours of your call and give you a named technician with a text when they’re on the way. Call (650) 352-3577 to check current availability.
We maintain standard Owens Corning loose-fill, batt, and rigid board inventory for common Palo Alto wall assemblies; specialty densities or fire-rated assemblies typically arrive within 3-5 business days. We never start work until materials are on-site and verified against the written scope. Your written price includes the delivery timeline - no surprises.
Written by Wes Okafor, Owner, Topside Attic Insulation Palo Alto at Topside Attic Insulation Palo Alto, serving Palo Alto and nearby areas.