Demilec Home Energy Audit in Santa Clarita: What to Know First
We provide independent Demilec home energy audit in Santa Clarita, typically scheduled within 48 hours and completed in a single visit. Most audits run between $280 and $550 depending on home size and which Demilec system we’re diagnosing. You’ll get a written price before we start, a printed report with blower-door and thermal imaging findings before we leave, and no work happens until you see the number in writing.
This page is for Santa Clarita homeowners with Demilec spray foam or hybrid insulation systems who’ve noticed uneven temperatures, rising utility bills, or suspect the original install missed air sealing steps. We also see owners who bought a home with Demilec already in place and need to know what they actually have. Call (747) 294-2764 or text us to schedule. A live person answers 24/7.
How Demilec Products Fail - and How We Fix Them
- Demilec SEALECTION 500 overspray gaps in vaulted ceilings. This open-cell foam expands aggressively, and in the steep roof pitches common in Santa Clarita’s newer construction, installers sometimes miss the narrow wedge where rafter meets ridge board. We find these gaps with thermal imaging from inside the attic, then seal with Demilec-compatible low-expansion foam before adding targeted dense-pack cellulose where R-value fell short.
- Demilec Heatlok HFO High Lift shrinkage at top plates. The HFO blowing agent achieves high R-value per inch, but in Santa Clarita’s dry heat cycles the foam can pull 1/8 to 3/16 inch away from framing edges after three to five years. We spot this with blower-door-directed infrared, cut back the affected area, and reseal with Demilec Heatlok XT - same chemistry, better long-term adhesion to Douglas fir common in local builds.
- Demilec 500 Demi-Fill incomplete cavity fill in older Valencia two-by-four walls. The pour-fill system was marketed for retrofit wall insulation, but in the 1970s ranch homes near Valencia Town Center with fire-blocking at 8 feet, the foam often bridges and leaves a 2-foot dead zone. We verify with boroscope inspection, then drill and fill the missed section or recommend dense-pack alternative if the cavity’s too compromised.
- Demilec SEALECTION AgriBalance odor retention in vented attics. The bio-based content can trap moisture if the attic wasn’t converted to conditioned space during install. Santa Clarita’s Santa Ana wind events drive dust and pollen through soffit vents, and we’ve found AgriBalance panels holding odor where the original contractor skipped the vapor retarder coat. We test with moisture meters, apply the missing retarder, and verify with post-job blower-door.
- Demilec Heatlok XT duct encapsulation delamination. When used to line HVAC flex ducts in attic installs, the XT can separate from the mylar jacket if the metal collar wasn’t primed per Demilec’s own spec. We see this in Canyon Country homes where the original installer rushed the collar prep. Our fix: strip the failed section, reprime with Demilec-recommended cleaner, and reapply - or replace the duct run if the delamination has propagated past two feet.
Our Demilec Home Energy Audit Process

- 1
Call and schedule. A live person answers, checks our calendar, and books a two-hour window. You get a text when your tech is en route.
- 2
Pre-test blower-door run. We pressurize the house to 50 Pascals and record CFM50 - the single number that tells us how much conditioned air you’re hemorrhaging. In Santa Clarita’s 100°F summer afternoons, every cubic foot lost is a cubic foot your AC replaced.
- 3
Thermal imaging and physical inspection. We scan every Demilec surface with FLIR, probe suspect areas with moisture meters, and borescope wall cavities where the thermal pattern shows anomalies. We photograph everything.
- 4
Written findings and price. Before any repair talk, you get a one-page summary with the blower-door number, thermal images marked with temperatures, and a flat price for each recommended fix. This is Haven Standard Clause 1: written price before any work starts.
- 5
Repair with Demilec-compatible materials. We use OEM Demilec products when the chemistry match matters, or quality third-party equivalents when they don’t - never generic hardware-store foam that voids what warranty remains.
- 6
Post-test and documentation. We run the blower-door again, print the before-and-after numbers on the spot, and add the photos to your job record. The report goes home with you. The numbers don’t lie, and you shouldn’t have to take anyone’s word for it.
Before
AfterWhat Demilec Home Energy Audit Costs in Santa Clarita
Most Demilec home energy audits in Santa Clarita fall in these ranges:
- Single-zone thermal imaging audit, no blower door: $280-$350
- Full blower-door test with thermal imaging, single-story home under 2,000 sq ft: $320-$420
- Full blower-door test with thermal imaging, two-story or home over 2,500 sq ft: $400-$550
- Duct leakage test add-on (recommended with Demilec duct encapsulation): $150-$220
- Wall boroscope inspection, per cavity: $85-$120
What moves the price: home size, number of Demilec zones to inspect, accessibility of attic and crawl space, and whether we need to depressurize multiple HVAC zones. If we find repairable issues during the audit and you want same-day fix, we apply the audit fee toward the repair total. Estimates are free. Call (747) 294-2764 for your exact number.
Why Santa Clarita Homeowners Call Topside Attic Insulation Santa Clarita for Demilec Work

We’re an independent Demilec service provider - not affiliated with or authorized by Demilec - which means we work for the homeowner, not the manufacturer. Wes Okafor, our owner, trained in building science at Washburne Trade School in Chicago and has spent the better part of two decades in the trade. His crew has sealed and insulated homes from Stevenson Ranch to Canyon Country, and we publish before-and-after blower-door numbers on every job where air sealing is part of the scope.
Our 365-Day Done Right Promise covers all completed work. Calls are answered by a live person 24/7. We also service Reflectix and other major brands, so if your audit reveals that Demilec isn’t the right solution for a specific area, we won’t force a square peg. Every job gets a Documented Photo Record, every price is in writing before work starts, and every customer leaves with data they can verify.
FAQs
No - manufacturer warranties cover product defects, not who inspects them. Demilec’s limited warranty terms don’t prohibit third-party assessment, though they do require OEM materials for any warranty-eligible repairs. We document our findings with photos and written reports, and if we find a product defect within Demilec’s coverage window, we’ll flag it so you can pursue a claim. Call (747) 294-2764 and we’ll review your install date and warranty status before we book.
We stock Demilec Heatlok XT, SEALECTION 500, and compatible primers and cleaners. For discontinued lines like AgriBalance, we source from Demilec’s remaining distributor network or specify equivalent chemistry that matches the original foam’s physical properties. We never substitute generic hardware-store products on Demilec systems. Bring us a competing quote for any repair - our Free Second Opinion applies.
Rising summer electric bills in Santa Clarita are the most common trigger - if your kWh usage is climbing and your AC runtime hasn’t changed, the building envelope is the likely leak. We also recommend an audit if you feel temperature swings between rooms, if your original install was before 2018 when Demilec updated several formulations, or if you’re planning a solar install and want to right-size the system against actual load. The blower-door test will tell you in 20 minutes whether the foam is performing or just occupying space.
Patching is almost always cheaper for localized failures - a top-plate shrinkage gap, a missed cavity, a single duct run. Full removal and replacement only makes sense when the foam is extensively water-damaged, chemically compromised, or installed so poorly that the cavity coverage is under 60 percent. During your audit, we’ll mark each zone with a repair-or-replace recommendation and price both paths. Most Santa Clarita Demilec jobs we see are patchable. Call (747) 294-2764 for a free estimate.
We schedule Demilec audits within 48 hours for standard bookings, same day for situations with active moisture intrusion or HVAC shutdown. Santa Clarita’s summer heat means we prioritize calls where the home can’t maintain safe temperatures. A live person answers 24/7, and you’ll get a text when your tech is en route with a named technician and arrival window.
Ready to know what your Demilec system is actually doing? Call (747) 294-2764 for a free estimate. We’ll give you a written price before any work starts, run the blower-door test before and after, and hand you a printed report with the numbers before we leave.
Written by Wes Okafor, Owner, Topside Attic Insulation Santa Clarita at Topside Attic Insulation Santa Clarita, serving Santa Clarita and nearby areas.