Trusted Home Energy Audit for Long Beach Homeowners
A Home Energy Audit in Long Beach typically takes 2-4 hours and costs $300-$600 for a full diagnostic assessment, with same-day scheduling available most weekdays. We measure what your house is actually doing, not what it should be doing. Call (424) 415-7031 to book a slot - a live person answers, 24/7.
We’ve sealed and insulated 9,000+ homes since 2016, and every one started with either a full energy audit or a targeted blower-door test. In Long Beach, we regularly see the same pattern: 1950s ranch homes in Belmont Shore with original wall cavities that were never insulated, Craftsman bungalows in Bluff Park with attic hatches leaking conditioned air into vented attics, and newer construction in Bixby Knolls where duct seams were never sealed during rough-in. The Haven Standard requires us to measure before we recommend. That means a written scope, a written price, and a documented photo record - every time, no exceptions. Wes Okafor has led this operation since the start, and the crew that shows up at your door will be background-checked, uniformed, and named in a text before they arrive.
What Our Home Energy Audit Service Includes
Blower Door Test
A blower-door test is a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing. We depressurize your house to 50 Pascals and measure the airflow in CFM50 - cubic feet per minute at that standard pressure. In Long Beach, where marine layer humidity keeps attic framing damp for months, a high CFM50 reading often explains why mildew keeps returning even after surface cleaning. We run this test at the start of every audit and again after any air-sealing work so you can see the before-and-after numbers in writing. Most Long Beach homes built before 1980 test between 3,500 and 6,000 CFM50 before sealing; after proper air sealing of top plates, can lights, and penetrations, we typically see 40-60% reduction.

Thermal Imaging Inspection
Thermal imaging - infrared camera scanning - reveals surface temperature differences that indicate missing insulation, air leaks, or moisture intrusion behind finished surfaces. We use FLIR cameras with resolution high enough to spot a 1-degree difference across a drywall plane. In Long Beach’s climate, this matters especially for west-facing second stories in Alamitos Heights, where afternoon solar gain masks insulation gaps that become obvious at 6 AM when the house has cooled unevenly. We scan every exterior wall, ceiling, and accessible floor during the audit, and the images become part of your Documented Photo Record. You’ll see exactly where heat is moving through your envelope, not just where we think it might be.

Insulation Inspection
We measure existing insulation depth, check for compression and moisture damage, and identify areas where insulation was installed but never contacted the air barrier - a common defect in Long Beach attics where blown-in fiberglass was added over unsealed top plates. We note the material type (fiberglass batts, cellulose, mineral wool, spray foam) and its condition. In neighborhoods like California Heights and Wrigley, we find vermiculite insulation in pre-1978 homes that requires testing before disturbance. Our inspection includes a written R-value assessment and a prioritized list of upgrade options, with flat prices for each. We source materials from Owens Corning, Johns Manville, Knauf, Rockwool, and GreenFiber - no proprietary lock-in means you get the right product for your assembly, not whatever we need to move.

Duct Leakage Test
A duct leakage test pressurizes your HVAC duct system and measures how much air escapes into unconditioned spaces - attics, crawl spaces, wall cavities. We seal the registers and use a Duct Blaster to apply 25 Pascals of pressure, then read the leakage in CFM25. In Long Beach, where many homes have ducts running through vented attics that hit 140°F in August, leaked supply air is lost cooling capacity you’ll pay for twice. We also check for disconnected flex duct, a failure mode we see frequently in Lakewood and Bellflower homes where original 1980s installations have sagged or pulled apart at the collar. The test results determine whether duct sealing or replacement belongs in your scope, and we price both options in writing before any work starts.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Home Energy Audit

We’ve worked with Owens Corning systems in hundreds of Long Beach homes, from AttiCat blown-in installations in Los Altos ranch houses to Foamular rigid board retrofits in Belmont Heights Victorians. Their published R-values and moisture-sorption characteristics are familiar territory - we know when an Owens Corning product is the right fit and when the assembly calls for something else. Icynene open-cell spray foam is another material we specify regularly for conditioned attic conversions in Signal Hill-adjacent properties, where the thermal boundary needs to move from the ceiling plane to the roof deck. We’ve audited and retrofitted dozens of Icynene installations, and we understand the vapor-profile implications for our marine climate.
Demilec closed-cell foam comes into play for crawl space encapsulation in the damp pockets near the Los Angeles River floodplain, and GreenFiber cellulose is our default for dense-pack wall retrofits in Midtown’s tighter framing bays. Whether your home has Owens Corning, Icynene, Demilec, GreenFiber, or any other make, we can assess what’s there, test how it’s performing, and specify what needs to change. No brand affiliation overrides what your house actually needs.
Signs You Need Home Energy Audit Right Now
- Your upstairs rooms run 8-12°F warmer than downstairs in summer. This isn’t just discomfort - it’s a diagnostic signal. In Long Beach, where many second floors were added in the 1970s without proper roof insulation, temperature stratification often points to a missing or degraded thermal boundary at the attic plane. We measure the actual R-value and air leakage to determine whether the fix is insulation, air sealing, or both.
- Your energy bill spikes every August and January despite consistent usage. Seasonal load extremes expose envelope failures that moderate months hide. If your summer cooling costs in Bixby Knolls are running $400+ for a 1,400-square-foot house, your building is working harder than it should. An audit isolates whether the problem is duct leakage, attic bypasses, wall insulation gaps, or all three.
- You smell mustiness in closets or behind interior walls after foggy mornings. Long Beach’s marine layer delivers 80%+ humidity on summer mornings, and that moisture finds its way into leaky envelope cavities. When warm, humid outside air hits cool drywall or framing, condensation forms. Thermal imaging and blower-door testing locate the pathways so sealing can happen before mold remediation becomes necessary.
- Your HVAC runs continuously without reaching setpoint. Equipment that’s properly sized but can’t keep up is often fighting duct leakage or envelope loss, not a failed compressor. We’ve found 30%+ duct leakage in Long Beach attics where homeowners were quoted $8,000+ for new equipment they didn’t need. The audit costs a fraction of that and tells you what’s actually wrong.
- You’re planning a remodel, addition, or insulation upgrade. Any envelope work should start with baseline measurements. We can’t tell you whether new attic insulation will pay back if we don’t know your starting CFM50, and we won’t price insulation without first checking whether your top plates and can lights are sealed. Under Haven Standard, sealed first, then insulated - in that order.
Our Home Energy Audit Process - Step by Step

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Schedule and confirm. Call (424) 415-7031 or text - a live person answers, 24/7. We confirm your address, note any known issues, and send a text with your technician’s name and photo the morning of the audit. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
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Blower-door baseline test. We set up the blower door in your front or back entry, seal the fireplace if you have one, and depressurize to 50 Pascals. The CFM50 reading goes on your report. We also walk the house to identify the biggest leakage points - attic hatches, recessed can lights, electrical outlets on exterior walls, door weatherstripping - and note them for the thermal scan.
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Thermal imaging and physical inspection. With the blower door running, we scan every accessible surface with the FLIR camera. The induced pressure makes leaks visible as cold streaks on warm walls. We measure insulation depth in the attic, check for moisture staining or compressed batts, and photograph everything. The duct system gets a visual inspection for disconnected runs, kinked flex, and deteriorated tape.
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Duct leakage test (if accessible). If your HVAC is operational and ducts are reachable, we seal registers and run the Duct Blaster. The CFM25 reading goes on your report alongside a diagram of the system layout. In Long Beach’s older homes with ducts in vented attics, this test often reveals the single biggest efficiency loss in the house.
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Written scope, written price, documented record. Within 24 hours, you receive a PDF report: blower-door number, thermal images with annotations, insulation assessment, duct leakage results if tested, and a prioritized scope of recommended work with flat prices for each item. No work starts without your written approval and a signed scope. Your Documented Photo Record is included, not available on request.
How Much Does Home Energy Audit Cost in Long Beach?
A full home energy audit in Long Beach typically runs $350-$600 depending on house size and test complexity - see how much Home Energy Audit costs for more detail. A standalone blower-door test for a single-family home under 2,500 square feet is usually $300-$400. Adding thermal imaging and full insulation inspection brings most audits to the $450-$550 range. Duct leakage testing adds $150-$250 if the system is accessible; in homes with ducts buried in finished soffits, we may recommend skipping this test or pricing it separately after exploratory access.
What moves the price: square footage (larger envelopes take longer to scan), number of HVAC zones (each adds ductwork to inspect), attic accessibility (steep pitches and limited hatch sizes slow the work), and whether we need to move stored items to access insulation. In Long Beach’s historic districts like Rose Park and Bluff Park, balloon framing and knob-and-tube wiring often require slower, more careful inspection - we price this honestly upfront rather than adding charges later.
How to avoid overpaying: any auditor who won’t put their test protocol in writing is selling theater, not diagnostics. We publish our procedure - blower door, thermal imaging, physical inspection, optional duct test - and we guarantee the price before we start. Bring us a competing written estimate and we’ll provide a Free Second Opinion, line by line. Most homeowners who compare find that our flat pricing, documented methodology, and published before-and-after numbers justify the investment. The audit fee is credited toward any envelope work we perform within 90 days.
Home Energy Audit Near Long Beach - Our Service Area

We run audits from San Pedro to Seal Beach and inland to the 605 corridor. Typical response times: same day or next day in Long Beach proper, Lakewood, Bellflower, Carson, and Paramount; one to two days for Cerritos, Compton, Norwalk, Lynwood, Downey, Lomita, and South Gate. If you’re in Belmont Shore and need a Saturday slot, we usually have availability. If you’re in North Long Beach and need emergency diagnostics after a water heater leak into the attic, call - we prioritize envelope-damage assessments same day. We also serve Home Energy Audit in Lakewood and Home Energy Audit in Bellflower with the same crew, same equipment, same Haven Standard documentation.
Serving Long Beach, CA - Our Local Coverage Area
We’re based in the Long Beach area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Home Energy Audit in Long Beach

A home energy audit is a diagnostic assessment that measures how your building envelope and mechanical systems are performing, using tools like a blower door, thermal camera, and duct blaster to find air leaks, insulation gaps, and efficiency losses. In Long Beach, where the marine climate masks some problems and exaggerates others, an audit replaces guesswork with measured data. You’ll receive a written report with photos, test numbers, and prioritized recommendations with flat prices. Call (424) 415-7031 to schedule - estimates for the audit itself are always free.
Most audits take 2-4 hours depending on house size, number of HVAC zones, and whether we perform duct leakage testing. A 1,200-square-foot bungalow in California Heights might be done in 90 minutes; a 3,500-square-foot custom home in Naples with three zones and a complex roofline can take five hours. We don’t rush the thermal scan - the blower door needs to run long enough for surface temperatures to stabilize. You’ll know the expected duration when we confirm your appointment.
A full audit in Long Beach runs $350-$600, with standalone blower-door tests at $300-$400 and duct leakage testing adding $150-$250. The price depends on square footage, accessibility, and test complexity - not on what we think you can afford. We put the exact price in writing before we start, and the audit fee applies to any envelope work within 90 days. Call (424) 415-7031 for a flat quote - no range given over the phone that changes when we arrive.
Yes - we’ve audited, added to, and retrofitted hundreds of homes with Owens Corning fiberglass and Icynene spray foam installations in Long Beach and surrounding cities. We assess what’s there, test how it’s performing, and specify what’s needed without brand bias. If your existing insulation is in good condition, we’ll tell you. If it’s compressed, misapplied, or the wrong product for the assembly, we’ll document that and price the fix. Bring us a competing quote for comparison - Free Second Opinion, always.
We prioritize same-day and next-day scheduling for situations where envelope damage is suspected - after a roof leak, rodent infestation, or HVAC failure that may involve duct contamination. A live person answers calls 24/7, and we maintain availability for urgent diagnostics in Long Beach, Lakewood, and Bellflower. “Emergency” in our context means rapid response to prevent further damage, not after-hours surcharges - our flat pricing applies around the clock. Call (424) 415-7031 and describe the situation; we’ll slot you in or refer you to the right specialist if the issue is outside our scope.
The audit itself is covered by our 365-Day Done Right Promise - if we missed something we should have caught, we return and re-audit at no charge. More importantly, any work we recommend and you approve carries the same promise, plus a written warranty delivered before anyone lifts a tool. Haven Standard Clause 1 requires flat price, written scope, written warranty - every job, no exceptions. Wes Okafor stands behind this personally; if it’s not done right, we make it right.
Make sure we can access the attic hatch, crawl space entry, electrical panel, and all HVAC equipment - move stored items if they’re blocking these areas. Close all windows and exterior doors at least two hours before we arrive so the house reaches stable pressure. If you have recent utility bills, have them handy; we use 12 months of usage data to correlate our test findings with your actual consumption. Don’t seal obvious drafts beforehand - we need to measure the house as it normally operates. We’ll text your technician’s name and ETA the morning of the audit.
Schedule Your Home Energy Audit Service in Long Beach Today
Call (424) 415-7031 now - a live person answers, 24/7, no voicemail loops. We’ll confirm your appointment, name your technician, and guarantee a written price before any work starts. Your audit includes blower-door testing, thermal imaging, full insulation inspection, and a Documented Photo Record with prioritized recommendations and flat pricing. The 365-Day Done Right Promise applies to everything we do. Get the measured facts your house is waiting to tell you.
Written by Wes Okafor, Owner at Topside Attic Insulation Long Beach, serving Long Beach since 2016.