Demilec Home Energy Audit in Laguna Niguel: What to Know First
We provide independent Demilec home energy audit in Laguna Niguel, typically completing the full diagnostic visit in 2 to 3 hours with written findings delivered same-day. Most audits run between $280 and $550 depending on home size and test scope, and we publish the price in writing before anyone enters your attic. This page is for Demilec owners in Laguna Niguel who want to know whether their insulation system is performing as specified, or whether gaps in the air barrier are letting conditioned air escape through the envelope. Call (949) 403-8361 to schedule, or text us a photo of your Demilec label and we’ll tell you what tests apply.
How Demilec Products Fail - and How We Fix Them
- Demilec Heatlok HFO Pro shrinkage at top plates in coastal Laguna Niguel homes. The HFO blowing agent cures tight, but in the marine layer cycles near Niguel Summit, we’ve measured 3-8% linear shrinkage in foam lifted directly against unvented roof decks. That pulls the seal away from the top plate. We cut back the compromised lift, re-seal with Demilec Heatlok XT for compatibility, and verify with a blower-door test before we close.
- Demilec Sealection 500 density loss in over-applied lifts. Installers sometimes shoot 4-inch passes in summer heat without adequate cooling time; the exotherm drives closed-cell content down and leaves a spongy mid-layer that reads soft on a rebound hammer. We core-sample suspect areas, document the density in our photo record, and either add a structural lift or remove and re-apply to spec.
- Demilec 500 open-cell moisture retention in Bear Brand Ranch attics. The open-cell structure breathes, but in hillside homes with south-facing roof planes, solar-driven moisture can push inward faster than the assembly dries. We find this with thermal imaging during our energy audit, cross-check with moisture-meter readings at the rafter bays, and specify a vented over-roof or a class-I vapor retarder depending on the assembly.
- Demilec Heatlok Soya HFO adhesion failure on dusty OSB. The bio-based content is less forgiving of construction dust than petroleum-based counterparts. In Laguna Niguel tract builds from 2018-2022, we’ve peeled back sections where the foam released clean from the substrate. We grind to clean wood, prime with Demilec-compatible contact adhesive, and re-shoot - never just caulk over the gap.
- Demilec spray foam overspray blocking soffit ventilation. Even careful installers miss a baffle now and then. We find this with a smoke pencil at the soffit during our blower-door depressurization test. The fix is surgical: remove the obstructed foam, install proper vent chutes, and re-seal the perimeter so the attic ventilates without leaking conditioned air.
Our Demilec Home Energy Audit Process

- 1
Call and label check. You text us a photo of your Demilec spray-foam tag or send the job-site paperwork. We identify the product line, the original install date if known, and any warranty registration on file.
- 2
Written price before arrival. Under Haven Standard Clause 1, we email a flat price for the audit scope - blower-door test, thermal imaging, insulation inspection, and duct leakage test if accessible. No work starts without your signature.
- 3
On-site diagnostics. We run the blower-door to establish your baseline CFM50 and ACH50. Then thermal imaging, moisture readings, and a physical probe of the Demilec lifts for density and adhesion. Wes Okafor sequences this personally: envelope test first, then spot checks, never the reverse.
- 4
Documentation review with you. We sit down with the thermal images, the blower-door numbers, and the marked-up attic diagram. You see what we found while we’re still on site, not in a PDF three days later.
- 5
Written scope if work is needed. If the Demilec needs repair, supplement, or removal, we deliver a second written price with material spec - Demilec, or if you prefer, Reflectix or another compatible system. No verbal estimates.
- 6
Post-job verification. On any air-sealing work we perform, we run a second blower-door test and hand you the before-and-after readings, plus the photo record, before we load the truck.
Before
AfterWhat Demilec Home Energy Audit Costs in Laguna Niguel
| Audit Scope | Typical Range | What Moves the Price |
|---|---|---|
| Basic Demilec energy audit (blower-door + thermal imaging) | $280 - $380 | Home size under 2,500 sq ft, single attic zone |
| Extended audit with duct leakage test | $380 - $480 | Ductwork in conditioned vs. unconditioned space |
| Full envelope diagnostic with moisture investigation | $480 - $550 | Multiple attic zones, Bear Brand Ranch hillside exposure, core sampling required |
Homes over 4,000 square feet or with detached accessory structures add $80-$150. If we find Demilec remediation is needed, your audit fee applies toward the repair scope. We don’t charge for travel within Laguna Niguel or neighboring Dana Point and San Juan Capistrano. Call (949) 403-8361 for an exact quote - estimates are free, and the price we quote is the price you pay.
Why Laguna Niguel Homeowners Call Topside Attic Insulation Laguna Niguel for Demilec Work

We’ve served Laguna Niguel since 2016, including the hillside homes near Bear Brand Ranch where radiant heat gain through poorly air-sealed attic hatches is a recurring problem we’ve documented with a blower-door test before and after every job. As an independent Demilec service provider, we’re not locked to one product line - we also work with Reflectix, Owens Corning, Johns Manville, and other systems when they’re the better fit for your assembly. Every job carries the 365-Day Done Right Promise, a written scope, and a Documented Photo Record. Calls are answered by a live person 24/7. Seal the holes first. Then insulate. The order isn’t optional.
FAQs
Demilec’s limited warranty covers product defect, not installation error or subsequent building movement. If our audit finds a factory issue - off-ratio cure, for example - we document it with core samples and thermal images you can submit to Demilec directly. If it’s an install problem, we quote the fix separately. Call (949) 403-8361 and we’ll walk you through what’s likely covered before we schedule.
Yes, we source Demilec Heatlok and Sealection lines through authorized distribution. For older installs where the exact product is discontinued, we match density and closed-cell content with a compatible lift - never a mismatch that creates a thermal or vapor boundary conflict. We note the substitution in your written scope.
Spot repair of localized shrinkage or adhesion failure typically runs $800-$1,800. Full removal and re-application of a Laguna Niguel attic runs $4,500-$8,000 depending on square footage and access. We only recommend removal when the foam is water-damaged, chemically off-ratio, or so poorly applied that supplemental work won’t meet code. Our audit gives you the numbers to decide.
We usually schedule within 48 hours, and emergency scheduling - for example, if you’re mid-escrow and need documentation - is often same-day. The audit itself takes 2-3 hours. Your written report with blower-door numbers and thermal images is delivered before we leave.
Only if the substrate isn’t prepared. We test adhesion, remove dust and oil contamination, and verify the existing foam is dry and structurally sound before shooting a new lift. Skipping this step is how delamination happens. We document the prep in your photo record so you know it was done.
Ready to know what your Demilec system is actually doing? Call (949) 403-8361 or text us your foam label. We’ll send a written price for the audit before anyone schedules a visit, and you’ll walk away with blower-door numbers, thermal images, and a clear picture of your envelope - not a sales pitch.
Written by Wes Okafor, Owner, Topside Attic Insulation Laguna Niguel at Topside Attic Insulation Laguna Niguel, serving Laguna Niguel and nearby areas.