Trusted Home Energy Audit for Los Angeles Homeowners
A home energy audit in Los Angeles typically costs $350-$850 for a comprehensive assessment and takes 2-4 hours from arrival to final walkthrough. Most Los Angeles homeowners who schedule with Topside Attic Insulation Los Angeles receive their written report within 48 hours, including blower-door numbers, thermal images, and prioritized recommendations. Call (628) 226-1097 to book - we answer live, 24/7.
We’ve sealed and insulated 9,000+ homes since 2016, and every one started with either a full home energy audit or a targeted diagnostic. In Los Angeles, we regularly see the same pattern: a homeowner in West Adams or Highland Park calls because their summer cooling bill has climbed 30% or more, and the audit reveals attic floor penetrations leaking conditioned air into the vented attic space before any insulation was ever added. The HVAC system runs longer, the upstairs bedrooms stay hot, and the homeowner has already paid for a larger AC unit that still can’t keep up. Our audits document exactly where the building envelope is failing, in what order to fix it, and what the measured improvement will be. Under The Haven Standard, you get a written price before any work starts and a documented photo record when we leave.
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 air your building envelope is losing. We depressurize your home to -50 Pascals with a calibrated fan mounted in an exterior door frame, then measure the airflow required to maintain that pressure difference - recorded as CFM50, or cubic feet per minute at 50 Pascals. In Los Angeles, we typically see pre-audit readings of 3,500-6,000 CFM50 in homes built between 1950 and 1990, which means the equivalent of a 3×3 foot hole is open to outside air at all times. We use a Retrotec or Minneapolis Blower Door system, and on every applicable job we publish the before-and-after numbers so you can verify the air-sealing result in writing.
Thermal Imaging Inspection
Thermal imaging with a FLIR infrared camera reveals surface temperature differences that indicate missing insulation, air leaks, or moisture intrusion invisible to the eye. During a Los Angeles energy audit, we scan after sunset or early morning when the Delta-T between inside and outside is sufficient to produce clear contrast - in summer, this often means starting at 6 AM before the attic heats past 120°F. We document thermal bridging at studs and rafters, insulation gaps above recessed can lights, and ductwork running through unconditioned attic spaces that is literally cooling the attic instead of the rooms below. You receive every image with annotations explaining what you’re seeing and what it means for your utility bill.
Insulation Inspection
We measure existing insulation depth with a ruled probe, identify the material type (fiberglass batts, blown-in cellulose, mineral wool, or spray foam), and check for compression, water staining, or rodent damage. In neighborhoods like Huntington Park, Florence-Graham and Lawndale, we frequently find original 1950s rock wool or early fiberglass batts compressed to R-11 or less, with newer blown-in GreenFiber or Owens Corning layered on top without air sealing first - which is like putting a sweater on over a screen door. Our inspection includes a density and coverage assessment per California Title 24 standards, and we note any combustion safety clearance violations around recessed lights or chimney penetrations.
Duct Leakage Test
A duct leakage test pressurizes your HVAC duct system to 25 Pascals and measures the airflow escaping through gaps, disconnected joints, or degraded flex duct. In Los Angeles homes with attic ductwork, we commonly measure 20-35% total leakage - conditioned air you’re paying to cool that never reaches a register. We seal all registers and returns, connect a Duct Blaster fan to the air handler, and distinguish between leakage to outside (which wastes energy) and leakage to inside conditioned space (which is less critical but still affects airflow balance). The test results determine whether duct sealing or replacement is prioritized in your written scope.
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
Our audits evaluate insulation and air-sealing systems regardless of original installer or material brand. We’ve assessed hundreds of homes with Owens Corning AttiCat blown-in fiberglass systems, particularly in Santa Monica and Culver City builds from the 2000s, where we often find the product itself is sound but top plate and penetration sealing was skipped during original construction. We also regularly inspect GreenFiber cellulose installations, common in Gardena and Hawthorne retrofits, where settling and moisture uptake are the primary performance issues we document. Our familiarity with these specific products means we know their typical failure modes, their rated vs. achieved R-values in real Los Angeles attic conditions, and how they interact with the air sealing that must precede any additional insulation.
Whether your home has Johns Manville mineral wool, Knauf EcoSeal, or any other make, we can assess it. We do not promote one brand over another - we document what you have, whether it’s performing to specification, and what the measured improvement would be from remediation. No proprietary product lock-in, no brand-exclusive relationships that skew our recommendations.
Before
AfterSigns You Need Home Energy Audit Right Now
- Your upstairs rooms are 8-15°F hotter than downstairs in summer. This is not normal in a properly sealed and insulated home. In Los Angeles, we see this most often in two-story homes in Inglewood and West Hollywood where the attic floor acts as a radiant heater, and the ductwork in that attic is leaking 25% or more of its cooling capacity before it reaches the second floor. An audit pinpoints whether the fix is air sealing, insulation, duct repair, or all three - in the correct sequence.
- Your electricity bill exceeds $300 in summer months despite reasonable thermostat settings. If you’re running your AC to 76°F and still seeing bills that high, the building envelope is the problem, not the equipment. We audit homes in Beverly Hills and Manhattan Beach where the homeowner already replaced a 3-ton unit with a 5-ton unit, only to watch the bill climb further because the new system was now cycling on and off without ever dehumidifying properly.
- You feel drafts near outlets, baseboards, or recessed lights even with windows closed. These are telltale signs of pressure-driven air leakage through the thermal boundary. In older Los Angeles neighborhoods like Florence-Graham, we regularly find top plates and electrical penetrations that were never sealed during original construction, creating a direct path from conditioned space to attic or wall cavity. A blower-door test quantifies this precisely.
- Your insulation was added more than 10 years ago without an air-sealing step. Blown-in fiberglass or cellulose over an unsealed attic floor simply filters the air leaking through - it does not stop it. We’ve removed decade-old GreenFiber installations in Lawndale that were black with filtered dust, proof that air was moving through the material rather than being blocked by it. The audit determines whether removal and proper reinstallation is warranted.
- You’re considering solar panels, a heat pump, or a tankless water heater. Any major efficiency upgrade should be preceded by an envelope assessment. Installing a $25,000 solar array on a home leaking 5,000 CFM50 is designing around a problem you could have fixed for a fraction of the cost. We audit homes in Redondo Beach and Manhattan Beach specifically before electrification retrofits, so the homeowner knows their true baseline.
Our Home Energy Audit Process - Step by Step
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Schedule and confirm. Call (628) 226-1097 and a live person answers, 24/7. We confirm your address in Los Angeles or surrounding areas, ask about your primary concern (high bills, hot rooms, prior insulation work), and schedule a 2-4 hour window. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
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Pre-test interview and walkthrough. Your technician reviews your last 12 months of utility bills if available, notes any comfort complaints room by room, and identifies combustion appliances that require safety testing before depressurization. We photograph the existing attic access, insulation condition, and any visible ductwork for the baseline record.
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Blower-door test and thermal imaging. We set up the blower door, run the depressurization test to establish your CFM50 baseline, then use the thermal camera to map leakage paths while the house is under pressure. This combination reveals exactly where air is entering - outlet boxes, can lights, chimney chases, duct boots - with photographic documentation of each finding.
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Insulation and duct assessment. We probe insulation depth across the attic floor, identify material type and condition, and run the duct leakage test if ductwork is accessible. In Los Angeles, we often find flex duct that has pulled loose from metal collars, or R-6 duct buried under R-30 insulation where it can no longer dissipate heat.
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Written report and prioritized scope. Within 48 hours, you receive a documented report: blower-door number, thermal images with annotations, insulation map, duct leakage percentage, and a written scope with flat pricing for each recommended phase. This is Haven Standard Clause 1 - written price, written scope, written warranty before anyone lifts a tool. We also include a Free Second Opinion on any competing quote you bring us.
How Much Does Home Energy Audit Cost in Los Angeles?
A comprehensive home energy audit in South Gate and Los Angeles runs $350-$850 depending on home size, accessibility, and the scope of testing required. A single-story home under 1,500 square feet in West Hollywood or Inglewood typically falls at the lower end, around $350-$500, with blower-door test, thermal imaging, and insulation inspection included. Two-story homes over 3,000 square feet in Beverly Hills or Manhattan Beach, or homes requiring duct leakage testing and multi-zone assessment, typically range $650-$850. If you schedule the audit as part of a larger insulation or air-sealing project, the audit fee is often credited toward the work.
Several factors affect your specific price. Attic accessibility is the most common - homes with scuttle hatches instead of pull-down stairs, or with HVAC equipment located in a cramped crawl space, require additional technician time. The age of the home matters too: pre-1978 Los Angeles construction may require lead-safe work practice assessment before disturbance testing. Homes with multiple HVAC zones or ductwork in multiple locations (attic plus crawl space) need extended duct leakage testing.
To avoid overpaying, be specific about what you’re getting. A $199 “energy assessment” that consists of a visual walkthrough and a sales pitch is not a diagnostic audit - it will not produce a CFM50 number, thermal images, or a written scope. Ask whether the auditor is using a calibrated blower door, whether you’ll receive the actual test results in writing, and whether the report includes prioritized recommendations with flat pricing. Under The Haven Standard, our written price before any work starts applies to the audit itself and to any work that follows - no surprises, no upsell pressure.
Every audit includes the documented photo record, the blower-door and duct-leakage numbers, and the thermal image set. Call (628) 226-1097 for an exact quote for your home - estimates are free, and we answer live.
Home Energy Audit Near Los Angeles - Our Service Area
We perform home energy audits throughout Los Angeles County with same-week availability in most neighborhoods. From Home Energy Audit in Los Angeles proper through Home Energy Audit in Culver City and Home Energy Audit in Santa Monica, typical drive time is 20-45 minutes during business hours. We also serve Beverly Hills, West Hollywood, Inglewood, Hawthorne, Manhattan Beach, Lawndale, Florence-Graham, Gardena, and Redondo Beach regularly. If you’re in a surrounding neighborhood not listed, call - we likely already work in your area and can confirm response time when you book.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 Los Angeles
A home energy audit is a diagnostic assessment of your building envelope, insulation, and HVAC systems using calibrated equipment to measure actual performance. We use a blower door to quantify air leakage, a thermal camera to map insulation gaps and thermal bridges, and a duct blaster to measure conditioned air loss - producing a written report with specific numbers, not guesses. Every audit we perform in Los Angeles includes these tests plus a documented photo record of findings.
A typical home energy audit in Los Angeles takes 2-4 hours from arrival to final walkthrough, depending on home size and the number of systems tested. Single-story homes under 2,000 square feet usually run 2-2.5 hours; larger homes or those with multiple HVAC zones and crawl space ductwork can extend to 4 hours. You receive the written report within 48 hours, including all images, test results, and prioritized recommendations with flat pricing.
Home energy audits in Los Angeles typically cost $350-$850 based on home size, accessibility, and testing scope. Most single-family homes fall in the $450-$650 range for a full diagnostic including blower door, thermal imaging, insulation assessment, and duct leakage test. Call (628) 226-1097 for an exact quote for your home - estimates are free, and the audit fee is credited toward any work you schedule with us.
Yes. We regularly audit homes with Owens Corning fiberglass batts and blown-in systems, as well as GreenFiber cellulose installations, and we know the typical performance issues and failure modes of each in Los Angeles climate conditions. Our assessment is brand-agnostic - we document what you have, whether it’s performing to specification, and what improvement measured air sealing and insulation would produce. No brand-exclusive relationships influence our recommendations.
We do not classify energy audits as emergency services, but we do offer same-week scheduling in most Los Angeles neighborhoods and can often accommodate next-day requests. Calls are answered by a live person 24/7, so you can book or check availability at any time. If you’re experiencing an urgent comfort or safety issue - such as a non-functional HVAC system in extreme heat - we can prioritize your audit and connect you with appropriate resources while scheduling.
The audit itself is covered by our 365-Day Done Right Promise - if any test result or recommendation is disputed and we determine an error in our documentation, we re-audit at no charge. Any work you proceed with based on the audit carries the same 365-Day Done Right Promise, backed by a written scope and written warranty delivered before anyone starts. Haven Standard Clause 1: flat price, written scope, written warranty - always.
Close all windows and exterior doors at least 4 hours before arrival, set thermostats to normal operating temperature, and gather your last 12 months of electricity and gas bills if available. We need access to the attic, crawl space, electrical panel, and all HVAC equipment, so clear any stored items blocking these areas. If you have fireplaces, do not use them within 24 hours of the audit - we test for combustion safety and need cold appliance conditions for accurate measurement.
Schedule Your Home Energy Audit Service in Los Angeles Today
Call (628) 226-1097 now - a live person answers 24/7, and we’ll schedule your audit with a named technician who arrives on time, documents everything, and leaves you with a written scope and flat price before any work starts. Free estimates, Free Second Opinion on any competing quote, and the 365-Day Done Right Promise on everything we do. home
Written by Wes Okafor, Owner at Topside Attic Insulation Los Angeles, serving Los Angeles since 2016.