Demilec Home Energy Audit in Huntington Beach: What to Know First
A Demilec home energy audit in Huntington Beach is a full-diagnostic look at how your home uses and loses energy, with special attention to how your Demilec spray foam or injection foam is performing. Most audits take about two to three hours, and we walk you through every finding before we leave. Pricing runs $195 to $495 depending on home size and which tests you need, and every audit comes with a written report you can use to prioritize repairs yourself or hire us to handle them.

This page is for homeowners in Huntington Beach who already have Demilec foam in their walls, attic, or crawl space and want to know if it’s actually doing its job. If that’s you, call (657) 222-2148 and a live person answers, day or night.
How Demilec Products Fail - and How We Fix Them
We see the same few Demilec issues on audit after audit here in Huntington Beach. Here’s what actually happens, what we look for, and what we do about it.
- Heatlok HFO shrinkage at rim joists. Demilec’s Heatlok HFO closed-cell foam is solid product, but we regularly find it pulling away from rim joist bays in older Huntington Beach homes. The cause is usually installer error: spraying over dust or moisture before the substrate was prepped. On an audit, our thermal camera shows cold banding right along the band board. Fix is cutting out the affected section and respraying after proper prep, not caulking over it.
- Sealection 500 open-cell overspray in enclosed cavities. Sealection 500 is open-cell, which means it breathes. That’s fine for attics and walls with proper vapor management, but in tight enclosed cavities near the coast, salt air and humidity can saturate it over time. We find it during blower door tests when humidity spikes in specific rooms. The fix is usually adding a vapor barrier layer or, in severe cases, removal and replacement with a closed-cell Demilec option.
- Agglomerate separation in older Demilec injection foam. Huntington Beach has a lot of 1980s and 1990s retrofit homes where Demilec’s injection foam was pumped into wall cavities. After 20-plus years, especially in homes near the State Beach corridor with constant salt exposure, that foam can separate from the sheathing. You won’t see it from inside. A blower door test with zonal pressure readings is how we find it. Repair means targeted reinjection rather than tearing out drywall.
- Oversprayed attic bypasses around can lights and wiring chases. This one isn’t Demilec’s fault, but we see it constantly: installers who sprayed Demilec foam thick on the attic floor but skipped the bypasses. Hot air from the living space still funnels into the attic through gaps around recessed cans, plumbing stacks, and electrical chases. The foam looks great from the hatch. The thermal imaging tells the real story. We air-seal the bypasses, then verify with a second blower door reading.
- UV degradation on exposed Heatlok HFO in open attics. Demilec’s closed-cell foams are rated for interior use, but in bright, vented Huntington Beach attics with gable windows, UV light slowly breaks down unprotected foam. It chalks, turns dark orange, and loses R-value at the surface. Our audit includes a visual check of any exposed foam plus a thermal scan to see whether the degradation is cosmetic or actually reducing performance. If it’s deep, we’ll recommend a protective coating or replacement.
Our Demilec Home Energy Audit Process
Here’s exactly what happens when you book a Demilec home energy audit with us in Huntington Beach:
- 1
Call and schedule. You call (657) 222-2148. A person answers. We set a time that works for you, including evenings and weekends.
- 2
Walkthrough and baseline. Walt or one of our techs walks the house with you, looks at the Demilec installation, checks the attic hatch, crawl access, and asks about any comfort complaints you’ve noticed.
- 3
Blower door test. We depressurize the house and measure total air leakage. This gives us a hard number to work against, not a guess.
- 4
Thermal imaging scan. With the house depressurized, we run an infrared camera along walls, ceilings, floors, and the attic. Gaps in Demilec coverage show up as temperature anomalies we can pinpoint.
- 5
Duct leakage test. If your home has ducted HVAC, we test supply and return leakage. Foam insulation can’t fix duct loss, and this is where a lot of Demilec homes in Huntington Beach are bleeding energy.
- 6
Report and plan. We sit down with you, go over every finding in plain English, and give you a written report with photos and thermal images. You’ll know exactly what needs fixing, what can wait, and what it costs. No obligation.
What Demilec Home Energy Audit Costs in Huntington Beach
Demilec home energy audit pricing in Huntington Beach runs between $195 and $495 for most single-family homes. Here’s a breakdown of what moves that number:
| Audit Component | Typical Range |
|---|---|
| Blower door test only | $195 - $295 |
| Blower door + thermal imaging | $295 - $395 |
| Full audit (blower door, thermal, duct test) | $395 - $495 |
| Homes over 3,500 sq ft | $495 - $595 |
What changes the price is square footage, number of zones, crawl space versus slab, and how much documentation you need. We don’t charge a trip fee if you’re inside our service county. Every audit quote is upfront, and if you mention you’re a senior or veteran, it’s 10% off, always. Call (657) 222-2148 for an exact quote. Estimates are free.
Why Huntington Beach Homeowners Call Walt’s Insulation for Demilec Work
We’ve been working Huntington Beach homes since 2000, and we’ve audited Demilec foam from the Bolsa Chica neighborhood clear out toward the State Beach corridor. We know what works in this climate and what doesn’t. We’re not a franchise and we’re not a call center. Walt Brenner owns this business, our address and license number are published, and when you call, a live person answers. Every single time.
Every audit we perform is covered by the Done Right Promise: if it’s not done right, we make it right, no runaround. Our techs are background-checked and uniformed, and they know Demilec products well enough to tell you honestly whether your foam is fine or failing. And since we also work with Owens Corning, Rockwool, Icynene, Johns Manville, CertainTeed, Knauf, GreenFiber, and Reflectix, we’re not married to one brand. If a Demilec repair doesn’t make sense, we’ll tell you. Good insulation shouldn’t be something you ever have to think about again.
FAQs
No, a home energy audit does not void a Demilec manufacturer warranty. We are an independent Demilec service provider, not an authorized dealer, but our diagnostic work is non-invasive and doesn’t alter the foam. If we find an installation defect, our report can help support a warranty claim with the original installer.
In many cases, yes. If we find a small void or bypass during the audit, our techs can often seal or patch it same day, especially if it’s an air-sealing fix rather than a full respray. Larger repairs need scheduling. Call (657) 222-2148 and we’ll tell you what’s realistic for your home.
Repair is almost always cheaper. Most Demilec issues in Huntington Beach homes are localized: a rim joist gap, a bypass, a small UV-damaged section. Full replacement runs $3 to $7 per square foot depending on foam type, while targeted repairs are usually a few hundred dollars. Our audit tells you exactly how much work is needed so you’re not paying for foam removal you don’t need.
We typically schedule Demilec home energy audits within three to five business days, and same-week appointments are common outside peak season. If you have a pressing comfort issue or a moisture concern, let the person on the phone know. We keep emergency slots open for urgent cases.
Yes. Most of the Demilec homes we audit in Huntington Beach were insulated by other companies, some of which are no longer in business. We evaluate the work as it stands, not by who did it. If the original installer is gone, our written report gives you documentation for insurance or warranty claims.
Book Your Demilec Home Energy Audit in Huntington Beach
If you own a Huntington Beach home with Demilec foam and you’re not sure it’s performing, call us. We’ll schedule a real audit with real diagnostic equipment, and you’ll get honest answers about what your house actually needs. No scare tactics, no upsells. Call (657) 222-2148 and talk to a live person. We’ve been doing this since 2000, and we’re not hard to find. We’re the one down the road.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving Huntington Beach and nearby areas.