Owens Corning Home Energy Audit in Yorba Linda: What to Know First
We provide independent Owens Corning home energy audit in Yorba Linda for homeowners who want documented proof of what their building envelope is actually doing, not a sales pitch wrapped in technical language. Most audits are scheduled within 48 hours and completed in two to three hours on site. You’ll get a written price before any work starts, and if we find nothing that needs fixing, we’ll tell you that too. Call (909) 323-1675 to book.
This page is for Owens Corning owners in Yorba Linda who’ve noticed uneven room temperatures, rising energy bills, or who simply want to verify their insulation is performing as installed. We work on Owens Corning systems every week across Orange County, from the Savi Ranch corridor to the hillside homes off Bastanchury Road where attic temperatures hit 140°F in July and every air leak at the top plates becomes expensive.
How Owens Corning Products Fail - and How We Fix Them
- Pink Fiberglas batts in kneewalls compress over time. The R-30 batts commonly installed in Yorba Linda’s 1970s-1990s tract homes lose loft where they meet angled ceiling joists, creating thermal bypasses we catch with blower-door-directed infrared. We remove the compressed batt, air-seal the kneewall framing with Owens Corning EnergyComplete acrylic latex, then reinstall to full thickness.
- AttiCat blown-in Fiberglas settles below labeled R-value. The loose-fill system installs at a settled density of 0.5-0.6 pounds per cubic foot, but installers who skip depth markers often under-blow by 20 percent. We measure existing depth against the coverage chart printed on every Owens Corning bag, then add material or remove and restart if the distribution is uneven.
- FOAMULAR XPS rigid board gaps at seams. The pink extruded polystyrene used for crawl space or basement applications in Yorba Linda’s newer construction shrinks slightly; factory-cut 4×8 sheets can gap ⅛ inch at butt joints after two heating seasons. We find these with thermal imaging during depressurization, then seal with Owens Corning JointSealR foam tape rather than generic caulk that voids the product’s limited warranty.
- Ecotouch batts installed without proper air sealing underneath. The formaldehyde-free batt performs well when the cavity is sealed first, but Yorba Linda’s Santa Ana wind cycles drive infiltration through unsealed top plates. We never leave an Owens Corning batt sitting on a leaky attic floor; our crews seal first, then insulate, then test.
- VentSure ridge vents blocked by blown-in overshoot. AttiCat installers working too fast from the attic hatch can bury the ridge vent intake, trapping moisture and heat. We clear the vent channel, install Owens Corning rafter baffles where missing, and document the before-and-after attic ventilation rate with a flow hood.
Our Owens Corning Home Energy Audit Process

- 1
Scheduling and scope confirmation. A live person answers when you call (909) 323-1675. We confirm square footage, year built, and any known issues. You’ll receive a text with your technician’s name the morning of.
- 2
Blower-door depressurization test. We install a calibrated fan in an exterior door and run the house to -50 Pascals, measuring CFM50 - the cubic feet of air leaking per minute at standard pressure. This number goes on your report before we enter the attic.
- 3
Thermal imaging under load. With the house depressurized, we scan walls, ceilings, and duct runs with a FLIR camera to find bypasses the blower door has made visible. Owens Corning’s pink Fiberglas is partially transparent to infrared, which helps us spot gaps behind it.
- 4
Insulation inspection and R-value verification. We measure depth, check for moisture staining, identify compression points, and note any product-line-specific issues like AttiCat settling or XPS seam gaps.
- 5
Duct leakage testing if applicable. For homes with Owens Corning duct wrap or flex duct in the attic, we pressurize the duct system and measure leakage to outside. Yorba Linda’s 140°F attic air leaking into return ducts is a cooling-load problem we quantify in CFM25.
- 6
Written findings and price. You get a printed report with blower-door number, thermal images, insulation map, and a single flat price for any recommended work. No work starts without your written approval. Seal the leaks first. Then insulate. The numbers will tell you whether it worked.
What Owens Corning Home Energy Audit Costs in Yorba Linda
Most Owens Corning home energy audits in Yorba Linda run $350-$650 for a single-family home under 3,500 square feet. The price moves based on what we need to test:
- Basic audit (blower door + thermal imaging + insulation inspection): $350-$450
- Audit with duct leakage testing: $500-$650
- Multi-zone or hillside home with complex attic geometry: add $100-$150
Homes built before 1980 in Yorba Linda’s original neighborhoods often need more time to map knob-and-tube wiring and irregular framing. We quote that upfront, not after we arrive. If you bring us a written estimate from another contractor, we’ll review it with you at no charge. Call (909) 323-1675 for your flat-price audit.
Why Yorba Linda Homeowners Call Topside Attic Insulation Yorba Linda for Owens Corning Work

We’re independently owned and operated under The Haven Standard since 2016, not a franchise or manufacturer affiliate. Wes Okafor learned building sciences through Kennedy-King College’s HVAC and weatherization program before running crews across Orange County for well over a decade. Every Owens Corning job we touch gets the same documentation: written price first, Documented Photo Record during, and before-and-after blower-door numbers when air sealing is performed. Our 365-Day Done Right Promise applies to all completed work, and we carry Owens Corning, Johns Manville, Knauf, Rockwool, and Reflectix materials so you’re never locked into a single product line. Calls are answered by a live person, 24/7.
FAQs
No. Owens Corning’s limited product warranty covers manufacturing defects, not installation or audit work. As an independent Owens Corning service provider, we document existing conditions without altering installed product, so your warranty remains intact. If we do find a manufacturing defect during audit, we flag it for your warranty claim with photos and measurements. Call (909) 323-1675 to schedule.
Most Yorba Linda appointments are available within 48 hours, and we complete the on-site work in two to three hours. Same-week scheduling is common except during peak summer weeks in July and August. You’ll get a text with your technician’s name and ETA the morning of. Call (909) 323-1675 to check this week’s openings.
Replace if the material is water-stained, compressed below 50 percent of original thickness, or contaminated. Repair by adding material or air sealing if the existing batt or blown-in is structurally intact but underperforming due to gaps or leaks. We make this call during audit and show you the thermal images so you can see what we see. Estimates are free.
We use Owens Corning materials when they’re the right fit for the assembly, but we also carry Johns Manville, Knauf, Rockwool, and Reflectix. No proprietary lock-in means we match material to condition, not purchase order. If your existing Owens Corning system needs an Owens Corning-specific component like EnergyComplete sealant or FOAMULAR tape, we stock it.
You receive a printed report with the blower-door CFM50 reading, annotated thermal images, an insulation depth map with R-value calculations, and a written flat price for any recommended work. If we performed duct testing, those CFM25 numbers are included. Every page is dated and signed by the technician before we leave your driveway in Yorba Linda.
Written by Wes Okafor, Owner, Topside Attic Insulation Yorba Linda at Topside Attic Insulation Yorba Linda, serving Yorba Linda and nearby areas.