CertainTeed Home Energy Audit in Tustin: What to Know First
As an independent CertainTeed service provider, Topside Attic Insulation Tustin performs home energy audits on CertainTeed insulation systems in Tustin with same-day or next-day scheduling, and we put a written price in your hand before any work starts. Most CertainTeed audits we run in Tustin Legacy and the older neighborhoods near Old Town fall between $280 and $550 depending on whether we’re testing a single attic zone or the full envelope including ductwork. Call (657) 286-7673 for a free estimate - estimates are free, and the price we write is the price you pay.
This page is for homeowners who’ve found CertainTeed batts, blown-in, or spray foam in their attic or walls and want to know whether it’s performing to spec, whether gaps or compression are wasting the R-value they paid for, and what fixing it actually costs in Tustin’s climate.
How CertainTeed Products Fail - and How We Fix Them
- CertainTeed InsulSafe SP blown-in fiberglass settles below labeled depth in Tustin’s dry heat. We’ve measured InsulSafe SP in Tustin attics that read 10 inches on day one and 7 inches by year five - that’s the difference between R-38 and R-26. Our fix: we measure settled depth with a probe grid, calculate the shortfall against the bag label, and supplement with matching blown-in or remove and re-blow to full depth after air sealing.
- CertainTeed SpeedyR roll batt compression around top plates and wiring runs. SpeedyR is cut to friction-fit between 16-inch studs, but electricians and plumbers in Tustin’s 1980s tract homes often compress it to half thickness around penetrations. Compressed fiberglass loses up to 50% of its R-value. We pull the compromised batts, seal the penetrations with fire-rated caulk and foam, then reinstall to full loft or replace with properly cut pieces.
- CertainTeed CertaSpray open-cell foam shrinks at perimeter edges in high-temperature attic conditions. Tustin attics hit 140°F regularly in August; CertaSpray can pull away from rafter tails and top plates, creating thermal bypasses. We thermal-scan every CertaSpray job, cut back failed foam, reseal with compatible two-part foam, and verify with blower-door before we close.
- CertainTeed MemBrain smart vapor retarder installed backward or punctured. MemBrain’s variable permeability only works when the printed side faces the conditioned space. We’ve found it hung backward in Tustin condos near The District, and punctured by subsequent trades. We reinstall correctly, tape seams with CertainTeed-approved tape, and document the permeance direction for the homeowner’s file.
- CertainTeed Optima blown-in system incomplete fill in complex Tustin rooflines. Optima’s dense-pack application requires consistent cavity pressure; Tustin’s hip roofs and dormers often get underfilled near valleys. We probe-test density, add fill where it’s light, and provide the before-and-after CFM50 so you know the envelope tightened.
Our CertainTeed Home Energy Audit Process

- 1
Call and schedule. A live person answers 24/7. We book a two-hour window, send a text when our technician is en route, and name the technician you’ll meet.
- 2
Visual and thermal inspection. We walk the attic and crawl space with a FLIR camera, looking for CertainTeed product labels, settled depth, compression points, and shrinkage gaps. We photograph everything.
- 3
Blower-door test. We pressurize the house to 50 pascals and record CFM50 - the single number that tells us how much conditioned air is escaping through the envelope. In Tustin’s 2005-and-newer builds, we typically see 3,500 to 5,500 CFM50 before work; older homes near Old Town often read 6,000-plus.
- 4
Written scope and price. Under Haven Standard Clause 1, you get a flat price, written scope, and written warranty before anyone lifts a tool. No exceptions.
- 5
Air sealing first, then insulation. 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. We seal top plates, can lights, penetrations, and duct boots with fire-rated foam and caulk.
- 6
Retest and document. We run the blower door again, publish the before-and-after numbers, and deliver your Documented Photo Record with thermal images and R-value verification.
Before
AfterWhat CertainTeed Home Energy Audit Costs in Tustin
| Service | Typical Range in Tustin |
|---|---|
| Single-zone attic audit (blower door + thermal scan + insulation inspection) | $280 - $380 |
| Full-envelope audit (attic, walls, crawl space, duct leakage test) | $420 - $550 |
| Supplemental blown-in to restore settled CertainTeed depth | $1.80 - $2.40/sq ft |
| CertaSpray shrinkage repair and reseal | $340 - $680 per affected bay |
| MemBrain vapor retarder reinstall or repair | $180 - $320 |
What moves the price: attic accessibility (Tustin’s low-slope ranch roofs are easy; two-story Tustin Legacy builds with scuttle holes take longer), whether we need to move stored items, and whether the original CertainTeed install included air sealing or we’re starting from zero. We also service Reflectix radiant barrier systems if your home has a hybrid install.
Every estimate is free, and every price is written before work starts. Call (657) 286-7673 for your exact number.
Why Tustin Homeowners Call Topside Attic Insulation Tustin for CertainTeed Work

We’ve sealed and insulated 9,000-plus homes since 2016, and a growing share of our Tustin calls involve CertainTeed products installed in the 2010s that are now settling, compressing, or shrinking. Wes Okafor and our crew know the CertainTeed product line by sight - we can read a faded bag stamp in a dark attic and know whether we’re looking at InsulSafe, Optima, or a custom spec blend.
Our 365-Day Done Right Promise covers all completed work. You get before-and-after blower-door numbers on every applicable job, a Documented Photo Record on every visit, and a Free Second Opinion on any written estimate a competitor has already provided. Calls are answered by a live person 24/7, and our technicians are background-checked, uniformed, and named before they arrive.
FAQs
No - an independent audit does not void CertainTeed’s limited product warranty, provided we do not alter the original install in a way that contradicts CertainTeed’s application guidelines. We document our methods and materials so any future warranty claim has a clear paper trail. If you’re concerned about a specific product line, bring your original paperwork; we’ll read it with you before we start. Call (657) 286-7673 to schedule.
We source CertainTeed products through standard distribution channels and also carry compatible materials from Owens Corning, Johns Manville, Knauf, and Rockwool. For repairs requiring an exact match - MemBrain tape, specific Optima densities - we order OEM. For supplemental blown-in where the original product is discontinued, we specify a matching thermal performance and document the substitution in your written scope. No proprietary lock-in.
Repair makes sense when the product is intact but underperforming due to settling, compression, or gaps - we can restore R-value by adding fill or repositioning batts. Remove and replace is the better call when the product is contaminated (rodent activity, water damage), when the original install omitted air sealing that can’t be done without full access, or when you’re chasing Title 24 compliance for a sale. We give you both numbers in writing and let the math decide. Call (657) 286-7673 for a free estimate.
Same-day or next-day for standard bookings; emergency scheduling within 24 hours if you’re under contract and need documentation for a buyer or lender. The audit itself takes 2 to 3 hours for a single-zone attic, 4 to 5 hours for a full envelope. Your written report with blower-door numbers, thermal images, and scope arrives within 24 hours of the crew leaving.
In Tustin homes built 1985 to 2005 with original CertainTeed batts and no air sealing, we typically see blower-door readings drop 25% to 40% after sealing and supplemental insulation. A recent job on a 1992 ranch near Browning Avenue started at 4,800 CFM50 and finished at 2,900 CFM50 - that’s conditioned air staying where it belongs. We publish the numbers; you verify them.
Ready to know what your CertainTeed insulation is actually doing? Call (657) 286-7673 for a free estimate. We’ll put a written price in your hand before any work starts, and you’ll walk away with documented proof of what we found and what we fixed.
Written by Wes Okafor, Owner, Topside Attic Insulation Tustin at Topside Attic Insulation Tustin, serving Tustin and nearby areas.