Demilec Home Energy Audit Nationwide

Demilec Home Energy Audit in Tustin: What to Know First

We provide independent Demilec home energy audit in Tustin, typically scheduling within 48 hours and completing the full diagnostic same day. Every audit begins with a written price before any testing starts - no exceptions - and ends with documented blower-door numbers, thermal images, and a written scope of any recommended air-sealing or insulation work. Most Demilec audits in Tustin Legacy and the older neighborhoods near Old Town run between $280 and $450 depending on home size and whether duct-leakage testing is included. Call (657) 286-7673 for a free estimate, or text if that’s easier.

Call (657) 286-7673

This page is for Demilec owners in Tustin who want to understand why their spray foam or insulation system isn’t performing as expected, what the audit actually measures, and what fixing it costs without a sales pitch.

How Demilec Products Fail - and How We Fix Them

• Heatlok HFO Pro shrinkage at roof decks. The high-R HFO-blown foam can pull back 1/8 to 3/16 inch from rafter edges in Tustin’s hot-dry cycles, creating thermal bypass channels we catch with blower-door-directed infrared. We map every gap, then seal with Demilec-approved touch-up foam or compatible low-expansion sealant before adding any supplementary insulation.
• Demilec 500 open-cell moisture retention in eaves. The 0.5 lb/cu ft density breathes, but in Tustin’s occasional Santa Ana humidity spikes it can hold moisture against roof sheathing if the attic isn’t ventilated per 2022 California Energy Code. Our audit includes pin-probe moisture readings at sheathing contact points; we don’t just look at R-value, we read the wood.
• Sealection 500 overspray gaps at top plates. The 2.0 lb closed-cell system is excellent when it hits the substrate, but in platform-framed Tustin homes from the 1980s and 90s, the gap between top plate and drywall is often missed during original install. We pressurize the house, run a smoke pencil along every wall top, and document the CFM50 contribution of each leak.
• Demilec APX adhesive failure on dusty OSB. The aerosol-applied adhesive that bonds Demilec board stock needs a clean, dry surface. In Tustin’s older attics with rodent activity or contractor traffic, dust layers prevent proper bond. We remove and re-adhere with mechanical fasteners plus fresh adhesive, and we photograph the substrate condition before and after.
• Heatlok XT thermal drift in unconditioned knee walls. The aged product in Tustin’s hillside homes above Irvine Boulevard can lose 10-15% of its labeled R-value over 15 years due to gas diffusion from the blowing agent. We core-sample where accessible, compare to original spec, and calculate actual versus design U-factor for the homeowner’s HVAC contractor.

Our Demilec Home Energy Audit Process

1. 1
   Written price first. We arrive with a flat rate for the audit scope, signed before the truck gets opened. Haven Standard Clause 1: no work starts without a written price, scope, and warranty.
2. 2
   Blower-door baseline. We pressurize to 50 pascals and record CFM50 - the single number that tells us how much conditioned air the envelope is hemorrhaging. In Tustin Legacy townhomes, we typically see 3,500 to 5,500 CFM50 before any work.
3. 3
   Thermal imaging under pressure. With the house depressurized, we run a FLIR scan to find where Demilec foam has separated, shrunk, or was never properly applied. The pressure differential makes every thermal bridge visible.
4. 4
   Insulation inspection and R-value verification. We measure actual versus specified depth, check for compression or disturbance, and note any areas where Demilec product was installed over unsealed penetrations - the mistake we see most often.
5. 5
   Duct leakage test if indicated. When the homeowner reports high summer bills or uneven cooling, we add a duct-blaster test to measure how much conditioned air is lost to the attic before it reaches the register.
6. 6
   Written report with photo record. You get blower-door numbers, thermal images with temperature annotations, a marked-up floor plan showing leak locations, and a written scope with flat pricing for any recommended air sealing or insulation work. The 365-Day Done Right Promise applies to anything we then perform.

Before

After

What Demilec Home Energy Audit Costs in Tustin

Factors that increase cost: homes over 3,500 square feet, multiple attic spaces, or crawl space encapsulation audits requiring additional access time. We also service Reflectix radiant barrier systems and can evaluate hybrid Demilec-Reflectix installs in the same visit. Every estimate is free - bring us a competing written quote and we’ll give you a free second opinion, line by line.

Why Tustin Homeowners Call Topside Attic Insulation Tustin for Demilec Work

We’re an independent Demilec service provider - not affiliated with or authorized by the manufacturer - which means we source materials from Demilec, Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, and GreenFiber based on what the job actually needs, not what a single brand contract requires. Wes Okafor and our crew have sealed and insulated over 9,000 homes since 2016, and we publish before-and-after blower-door numbers on every applicable job so you can verify the result yourself.

Our technicians are background-checked and uniformed, and a live person answers calls 24/7 - no voicemail loops, no callback windows measured in business days. The 365-Day Done Right Promise applies to all completed work: if it’s not done right, we make it right, backed by the written scope and warranty delivered before anyone started. 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.

FAQs