GreenFiber Home Energy Audit Nationwide

GreenFiber Home Energy Audit in Palo Alto: What to Know First

We provide independent GreenFiber home energy audit in Palo Alto, typically scheduling within 48 hours and completing the full diagnostic same-day. Most audits run between $280 and $520 depending on home size and whether duct leakage testing is included. We are not affiliated with or authorized by GreenFiber - we are an independent GreenFiber service provider - which means we report what we find without manufacturer bias.

Call (650) 352-3577

This page is for Palo Alto homeowners who have GreenFiber cellulose insulation in their attic or walls and want to know why rooms stay cold, energy bills climbed, or the insulation looks settled or disturbed. If that matches your situation, call (650) 352-3577. We’ll give you a written price before any work starts, and a documented photo record when we leave.

How GreenFiber Products Fail - and How We Fix Them

• GreenFiber All Borate loose-fill cellulose settling below labeled R-value. In Palo Alto’s older ranch homes near Midtown, we regularly find All Borate that has settled 20-30% from its original depth, especially where installers missed installing baffles at the eaves. The borate fire retardant holds up, but the fiber matrix compresses over time when walked on during HVAC service or when roof leaks introduce moisture. We measure actual depth against the coverage chart printed on every GreenFiber bag, then calculate the real R-value achieved versus what was specified.
• GreenFiber Sanctuary stabilized cellulose clumping from roof leaks. Sanctuary’s added adhesive binder, the “stabilized” feature that resists settling, becomes a liability when a slow roof leak saturates a section. The fibers glue themselves into dense, wet mats that hold moisture against drywall and top plates for months. In Palo Alto’s Mediterranean climate, that trapped moisture dries slowly during our mild winters. We remove the clumped sections, photograph the water staining pattern for your roofer, and replace with fresh material only after the leak source is fixed.
• GreenFiber Low Dust formula dusting through recessed can light penetrations. The “low dust” milling process leaves finer particles that migrate more readily through gaps around non-IC-rated can lights, a common issue in 1960s-1980s Palo Alto tract homes. We find gray cellulose dust on ceiling fins and inside fixture housings. Our fix is sealing the penetration with fire-rated foam or covers before touching the insulation, because adding more GreenFiber over an unsealed hole just gives the dust more material to push through.
• GreenFiber stabilized wall spray shrinking from stud bays. When Sanctuary or All Borate is dense-packed into wall cavities with insufficient pressure or incomplete cavity fill, the material shrinks away from studs and top plates within two to three years. You feel it as cold stripes on interior walls during a Palo Alto January morning. We spot this with thermal imaging, then re-dense-pack to the proper 3.5 lbs per cubic foot or recommend a different approach if the cavity geometry won’t hold it.
• GreenFiber in contact with knob-and-tube wiring creating a thermal bypass. GreenFiber is treated with borate, not the older ammonium sulfate formulation that corroded wiring, but the insulation itself still creates a convective loop around live knob-and-tube. Air moves through the cellulose, carrying heat directly past the insulation layer. We document this for your electrician, then air-seal around the wiring penetrations with fire-rated materials before adjusting insulation placement. Seal the leaks first. The insulation has nowhere to work if the air is moving around it.

Our GreenFiber Home Energy Audit Process

1. 1
   Call and scope. A live person answers, 24/7. We ask square footage, insulation type if known, and what symptom prompted the call. We schedule the audit and email a confirmation with your technician’s name.
2. 2
   Blower-door test. We depressurize the house to 50 Pascals and record the CFM50 - the cubic feet per minute of air leakage at that pressure. For GreenFiber homes in Palo Alto, we typically see 3,500-6,000 CFM50 in pre-1990 construction and 2,000-3,500 in newer builds. This number goes on your report.
3. 3
   Thermal imaging and insulation inspection. We scan walls, ceilings, and duct runs with a FLIR camera while the house is under pressure from the blower door. GreenFiber shows distinct thermal patterns: settled areas read warmer in summer scans, clumped wet sections read cooler. We photograph every anomaly.
4. 4
   Duct leakage test if scoped. We pressurize the duct system and measure leakage to outside. In Palo Alto, we often find 15-25% duct leakage in homes with flex duct in vented attics, which wastes conditioned air that GreenFiber in the attic floor is trying to keep.
5. 5
   Written findings and price. Before we leave, you get a written report with the blower-door number, thermal images with annotations, insulation depth measurements, and a flat price for any recommended work. No work starts without your written approval.
6. 6
   Documentation delivery. If you proceed, we complete the work and provide a Documented Photo Record, plus a post-work blower-door test on applicable jobs so you can verify the air-sealing result.

What GreenFiber Home Energy Audit Costs in Palo Alto

Homes over 4,000 square feet or with multiple attic spaces, like the larger ranch-style homes in south Palo Alto, typically land in the upper third of these ranges. We also service Reflectix radiant barrier systems if your audit reveals that addition would help. Call (650) 352-3577 for a written price - estimates are free.

Why Palo Alto Homeowners Call Topside Attic Insulation Palo Alto for GreenFiber 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 technicians are background-checked and uniformed; you get a text when yours is on the way. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.

Wes Okafor, our owner, learned air sealing before insulation at Richard J. Daley College, and that sequence still governs how we run every Palo Alto job. We publish before-and-after blower-door numbers on every applicable project. Our 365-Day Done Right Promise means if it’s not done right, we make it right, backed by a written scope and written warranty delivered before anyone lifts a tool. We also offer a Free Second Opinion on any written estimate from another contractor - bring us their paperwork and we’ll read it with you.

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