Demilec Home Energy Audit in Inglewood: What to Know First
A Demilec home energy audit in Inglewood typically costs $250-$600 depending on the depth of testing, and we complete the full diagnostic visit in about two to three hours. We’re an independent Demilec service provider, not a factory branch, so we test what’s actually in your walls and attic without trying to sell you a full replacement unless the evidence supports it. If you own a Demilec spray foam or injection foam home and you’re fighting uneven temperatures or bills that climb every summer, this page tells you exactly what we check, what we find, and what it costs to put right.
Call (424) 622-5846 and a live person answers, 24/7. No voicemail trees, no answering service. We’ll get you scheduled fast, and estimates are free.
How Demilec Products Fail - and How We Fix Them
Demilec makes solid foam products, but Inglewood’s heat, coastal humidity swings, and older housing stock expose specific failure points we see repeatedly on home energy audits. Here’s what we actually find in the field:
- Heatlok HFO High Lift shrinkage at rim joists: Heatlok HFO is Demilec’s closed-cell workhorse, but in Inglewood homes built before 1990, we commonly see it pulling back from rim joists after five to seven years. The cause is usually installation temperature, not the foam itself. When it’s sprayed too cold or too thick in a single pass, the foam cures with internal stress and separates from the wood. Our fix is surgical: we cut out the affected band, re-spray with proper substrate temperature, and verify with a thermal scan that the joist bays are sealed. No full-wall replacement needed.
- Sealection 500 open-cell saturation after roof leaks: Sealection 500 is Demilec’s open-cell line, and open-cell foam absorbs water like a sponge. A small roof leak that goes unnoticed will saturate the foam, kill its R-value, and create a mold-friendly zone. On an audit, our thermal imaging shows cold, wet bands that look like shadows in the attic. We don’t just note it; we isolate the moisture source, remove the damaged section, and re-spray once the decking is dry. Most jobs are completed in a single visit.
- Demilec spray foam cracking at drywall seams from slab movement: Inglewood sits on expansive clay soils. Houses move. Closed-cell foam is rigid, and when slab movement flexes wall framing, the foam can crack at drywall seams and pull away from studs by a quarter inch. A blower door test will show air moving through those hairline gaps. We trace the path with smoke pencils and seal the specific cracks rather than tearing out wallboard.
- Demilec injection foam settling in older double-brick cavity walls: Some Inglewood mid-century homes have brick-and-block walls with Demilec injection foam in the cavity. Over time, especially with our seismic activity, the foam can settle or lose adhesion and create void pockets. The audit catches this with a thermal map of the wall surface. Our repair is targeted injection refill, not a gut job.
- OEM vs. aftermarket parts on Demilec spray foam rigs: When Demilec equipment needs servicing, we use OEM nozzles, mix tips, and heat strip components because aftermarket tips spray at inconsistent ratios and ruin the foam’s density. We’ll never install a bargain aftermarket part on a Demilec rig and call it good. If you have a DIY setup or a previous contractor left the equipment dirty, we inspect the gun, the proportioner filters, and the drum lines before we trust any new foam.
Our Demilec Home Energy Audit Process
Here’s how a Demilec home energy audit actually goes when you call Warmline Insulation Co. in Inglewood:
- 1
Call and schedule. You talk to a person, not a phone tree. We book a two to three hour window that works for you, and we show up in a uniformed, background-checked crew.
- 2
Walkthrough and symptom interview. Neil Ashford or a senior tech asks where the house is uncomfortable, which rooms fight the thermostat, and what the bills have looked like. We listen first. The audit should answer your questions, not our checklist.
- 3
Blower door test. We depressurize the house and measure total air leakage. For Demilec foam homes, we’re looking for leakage at foam terminations, plumbing penetrations, and the attic floor. Most Demilec homes should test tighter than a standard fiberglass house; if it doesn’t, we know something failed.
- 4
Thermal imaging inspection. We scan every wall, ceiling, and rim joist with a thermal camera. Demilec failures show up as cold stripes or hot patches. We photograph everything so you see exactly what we see.
- 5
Duct leakage test where relevant. If your ducts run through the attic or crawl space, we pressurize the system and measure leakage. Foamed attics keep ducts inside the thermal envelope, but duct boots at drywall penetrations are where Demilec homes still leak.
- 6
Findings and written quote. We walk you through the report, mark the specific fixes, and give you a line-item price. No pressure, no upsell. If it doesn’t need fixing, we tell you that. The 90-Day Done Right Promise means if we repair something and it isn’t right, we make it right at no charge.
What Demilec Home Energy Audit Costs in Inglewood
Most Demilec home energy audits in Inglewood run between $250 and $600, depending on home size and how many tests we run. Here’s the honest breakdown:
- Blower door test only: $150-$250, and it takes about an hour. You get the leakage number and the main air paths.
- Full audit with thermal imaging and written report: $350-$600 for a typical 1,500 to 2,500 square foot Inglewood home. This is the one we recommend. It gives you the complete picture.
- Duct leakage test add-on: $100-$150 if you’re doing a full audit. If we’re already there, the setup is fast, and you’ll know whether your ducts are costing you real money.
- Repair work after the audit: Most Demilec fixes are $400-$1,200 depending on the foam type and the square footage involved. We price everything upfront so there are no surprises.
If you mention the audit findings and move forward with repair work, ask about our current offers: $50 off any repair over $250, an $89 Seasonal Tune-Up, and a permanent 5% Senior & Veteran discount. Call (424) 622-5846 for a free estimate on any of it.
Why Inglewood Homeowners Call Warmline Insulation Co. for Demilec Work
We’re not a generalist contractor who happens to know the Demilec name. We work with Demilec, Reflectix, Owens Corning, Icynene, and the other benchmark foam brands because Inglewood homes don’t all have the same product, and a one-size-fits-all fix doesn’t work when the failure modes are brand-specific. Neil Ashford spent enough summers in sweltering, poorly insulated LA houses to take this personally, and he’s been crawling through Inglewood attics since we opened in 2011. Ten service categories under one roof means the audit doesn’t end with a shrug and a referral; we handle air sealing, spray foam, blown-in, crawl space encapsulation, and the rest of it ourselves.
Every job is licensed and insured, every technician is background-checked and uniformed, and if the work isn’t done right, our 90-Day Done Right Promise says we make it right. No fine print. The work should speak for itself - and so should your energy bill.
FAQs
No. A home energy audit or blower door test does not void a Demilec product warranty. Audits and diagnostic testing are non-invasive. What can void a warranty is an unauthorized repair that changes the foam chemistry or the installation method, which is why we only use Demilec-compatible materials and OEM parts on any repair we perform. If you’re concerned, we’ll document everything for your records.
Most Inglewood appointments are scheduled within one to three business days, and we often have same-day or next-day slots available depending on the week. The audit itself takes two to three hours, and you’ll have the full written report before we leave the property. Call (424) 622-5846 and a live person will check availability right then.
Repairing failed Demilec foam is almost always cheaper than full removal and reinstallation. If the damage is localized - a cracked rim joist band, a wet section of open-cell, a settled cavity void - we cut out and replace only the damaged area. Full reinsulation is only justified when the foam has delaminated across more than 30% of the surface or there’s widespread moisture damage. The audit tells you which camp you’re in before we quote anything.
Yes. We work with Reflectix, Icynene, Owens Corning, Rockwool, CertainTeed, Johns Manville, Knauf, and GreenFiber. Inglewood homes built in different eras used different products, and our techs diagnose the actual material, not a brand name. If you have mixed insulation from a previous retrofit, we sort that out during the audit.
Yes, and that’s actually a smart time to do it. First-time buyers in Inglewood often inherit insulation problems they never knew to inspect. We can identify whether Demilec or another product is installed, verify its condition, and give you a baseline before you start making changes. If you’re within your first year of ownership, an audit helps you plan improvements with real data instead of guesswork. Call (424) 622-5846 and we’ll get you on the schedule.
Written by Neil Ashford, Owner, Warmline Insulation Co. at Warmline Insulation Co., serving Inglewood and nearby areas.