Trusted Home Energy Audit for Torrance Homeowners
A Torrance Home Energy Audit typically costs between $250 and $450 for a full assessment with a blower door test and thermal imaging, and most audits take about two to three hours from start to finish. That’s the straight answer. The longer answer is that a proper audit shows you exactly where your house is leaking conditioned air, which is money leaking out of your pocket every single month.
Walt Brenner founded Walt’s Insulation in 2000, and we’ve been crawling through Torrance attics and crawl spaces ever since. The marine layer that rolls through the South Bay keeps temperatures mild, but it also brings moisture problems that most homeowners never see until the drywall stains show up. We answer the phone live, 24/7, and we’re the one down the road, not an 800 number. Call (424) 955-2557 and you’ll get a real person who knows Torrance homes.
Our audits are done by the same background-checked, uniformed technicians who do the insulation and air sealing work. That matters because you’re not getting a salesperson with a clipboard and a vague report. You’re getting someone who actually fixes what the audit finds.
What Our Home Energy Audit Service Includes
Every home energy audit we perform in Torrance is a complete diagnostic assessment. We don’t do walk-through estimates and call them audits. We bring testing equipment, take real measurements, and give you a written report with specific findings and specific fixes. Here’s what’s included.
Blower Door Test
A blower door test measures exactly how much air your home leaks. We mount a calibrated fan in an exterior door frame, depressurize the house, and read the airflow needed to hold that pressure. The number we get tells us your home’s air changes per hour, which is the baseline for every other recommendation we make. In Torrance homes built in the 1950s and 60s, we routinely see leakage rates two to three times higher than current building code allows. The test takes about 30 minutes, and you’ll see the results in real time on our manometer.
This test matters because you can’t guess at air leakage. A house that feels drafty might have one bad window, or it might have a dozen recessed light cans leaking into the attic. The blower door gives us a number, not a hunch.
Walt’s Insulation runs blower door tests as part of every full audit, then we seal the leaks we find. We use Owens Corning fiberglass and Knauf blown-in products on the insulation side, but the test itself is brand-agnostic. It just tells the truth about your building envelope.

Thermal Imaging Inspection
We use an infrared camera to see temperature differences inside your walls, ceilings, and floors. Missing insulation, air leakage pathways, and moisture intrusion all show up as cold or hot spots on the thermal scan, and we document every image as part of your report. In Torrance, where ocean air keeps humidity high, thermal imaging often catches moisture behind stucco long before it becomes visible mold or peeling paint. The camera doesn’t lie, and neither do we.
This inspection is particularly useful in Torrance homes with cathedral ceilings or bonus rooms over the garage, where insulation gaps are common and hard to detect by eye. The thermal camera shows us exactly where the building envelope is broken.
When we do a thermal scan, we’re looking at the whole house as a system, not just the obvious spots. That’s what separates a real audit from a sales visit.

Insulation Inspection
We check every accessible part of your attic, crawl space, and exterior walls to see what insulation you actually have, what condition it’s in, and whether it meets current Department of Energy recommendations for Southern California’s climate zone. Many Torrance homes have original rock wool or fiberglass batts that have settled, been disturbed by rodents, or were never installed properly in the first place. We measure the R-value, identify gaps and compression, and photograph everything.
Old insulation doesn’t just underperform; it can hold moisture against framing and create conditions for mold. We look for those problems specifically.
If your insulation needs replacement, we do that work too. We install Johns Manville and Rockwool products, and we remove old material safely before putting new material in. The audit tells you what’s needed; we can handle the fix same week in most cases.

Duct Leakage Test
Leaky ducts in a Torrance home can waste 20 to 30 percent of the air your HVAC system moves. We test your duct system by pressurizing it and measuring how much air escapes through joints, seams, and disconnected runs. Most of the time, the leaks are in the attic or crawl space where ducts are accessible but never inspected. We don’t just tell you there’s a leak; we mark the exact spot and show you the reading.
If you have flexible ductwork from the 1980s or 1990s, there’s a good chance it’s torn at the connections or sagging. Torrance’s salty ocean air accelerates corrosion on metal duct components too.
After the test, we can seal and repair the ductwork. We’re licensed for the full scope of the work, so the fix comes from the same Walt’s Insulation technician who ran the test, not a subcontractor you’ve never met.

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
Walt’s Insulation works with insulation and building envelope products from Owens Corning, Johns Manville, Knauf, and Rockwool. We’ve installed and evaluated each of these manufacturers’ products in Torrance homes for over two decades, and we know their performance characteristics, installation requirements, and failure modes in Southern California’s coastal climate. When your audit calls for insulation replacement or air sealing, we’ll recommend the right product for your specific house, not whatever’s left on the truck.
Owens Corning fiberglass batts and blown-in products are a common part of our Torrance retrofit work because they hold their R-value well in variable humidity. Rockwool stone wool performs exceptionally well in older Torrance homes where fire resistance and moisture management matter. Whatever product your home already has or whatever your audit shows you need, we can service it. We’re not tied to one manufacturer, and we’ll tell you when a less expensive product will do the job just as well.
Signs You Need Home Energy Audit Right Now
- Rooms that never get comfortable. If your upstairs bedrooms are ten degrees warmer than the living room in August, or the west-facing rooms bake every afternoon, your building envelope isn’t doing its job. An audit pinpoints where the heat is getting in and where your cooled air is escaping.
- Monthly energy bills that climb every summer. Torrance electricity rates have risen steadily, and a house that leaks air is paying for comfort it never receives. If your bill jumped more than your usage would explain, you’re likely conditioning the attic or the crawl space instead of the living area.
- Dust that returns within days of cleaning. Leaky attics and ductwork pull in dust, fiberglass particles, and whatever else is up there, then circulate it through your house. Persistent dust usually points to an air leakage problem, not just poor housekeeping.
- Musty smell or visible moisture in the attic or crawl space. Torrance’s morning marine layer keeps attics and crawl spaces damp for months at a time. If you smell mildew or see condensation on the underside of your roof sheathing, you need a thermal inspection and an air leakage test to find the source.
- You’re planning an HVAC replacement or a major remodel. There’s no better time to seal the building envelope than before you install a new furnace or AC. A properly sealed house needs a smaller, less expensive HVAC system, and the audit gives you the numbers to prove it.
Our Home Energy Audit Process - Step by Step
Here’s how a Walt’s Insulation home energy audit works in Torrance, from phone call to written report. There’s no mystery and no pressure. You’ll know what’s happening at every step.
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Call and schedule. You call (424) 955-2557, a live person answers, and we set a time that works for you. We ask a few questions about your house and your concerns, then confirm the appointment. No voicemail, no call center, no waiting three days for a callback.
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Walk-through and visual inspection. Our technician arrives in uniform, introduces themselves, and walks the house with you. We inspect the attic, crawl space, windows, doors, and HVAC registers, taking photos and notes. You tell us what’s bothering you: hot rooms, high bills, drafts, noise. We listen before we test.
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Diagnostic testing. We set up the blower door, run the duct leakage test, and start the thermal imaging scan. This usually takes 45 to 90 minutes depending on the size of the house. You’re welcome to watch the tests and ask questions, and we’ll explain the readings as we go.
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Findings and recommendations. We show you what we found, with the data to back it up. You’ll see the leak points on the thermal images, the air changes per hour from the blower door test, and the duct leakage percentage. We give you a prioritized list of fixes, from quick air sealing jobs to full insulation replacement, with clear pricing for each.
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Written report and follow-up. You get a written audit report you can keep, with all the test results, photos, and recommendations. If you want us to do the work, we’ll schedule it. If you want a second opinion on any written estimate from another company, that’s free. Every job we do is backed by the Done Right Promise: if it’s not done right, we make it right.
How Much Does Home Energy Audit Cost in Torrance?
A complete home energy audit in Torrance, including a blower door test, thermal imaging inspection, insulation evaluation, and duct leakage test, typically costs between $250 and $450. The range depends on the size of the house, the age of the home, and how many systems need testing. Smaller Torrance homes under 1,200 square feet tend toward the lower end. Larger two-story homes in South Torrance or Hollywood Riviera with multiple HVAC zones run higher.
What affects the price? House size is the biggest factor because more square footage means more time for testing and inspection. Access matters too. If your attic is tight or your crawl space has low clearance, the inspection takes longer. Homes with multiple HVAC systems need multiple duct tests, which adds to the total.
How do you avoid overpaying? Beware of companies that charge extra for the written report or that price thermal imaging as a premium add-on. A proper audit includes the report and the imaging as standard. Also, any company that offers a “free energy audit” is usually selling an estimate, not running actual diagnostic tests. Ask specifically whether they use a blower door and an infrared camera. If they don’t, it’s not an audit.
Our estimates are free, and there’s no trip charge inside our service county. Seniors and veterans get 10 percent off, always. And if another company has already given you a written estimate, we’ll give you a free second opinion. That’s how Walt’s Insulation has worked since 2000.
Home Energy Audit Near Torrance - Our Service Area
Walt’s Insulation is based locally and serves Torrance plus the surrounding South Bay and LA County communities including Redondo Beach, Lomita, Lawndale, Gardena, Hermosa Beach, Palos Verdes Estates, Rolling Hills Estates, and Culver City. Most Torrance appointments can be scheduled within a few days, and emergency calls are answered 24/7. If you’re outside Torrance, we’ve written specific guides for Home Energy Audit in Culver City and Home Energy Audit in Lakewood so you can see what’s different in your neighborhood. We’re the one down the road for the whole South Bay.
Serving Torrance, CA - Our Local Coverage Area
We’re based in the Torrance 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 Torrance
A home energy audit is a systematic test of your home’s building envelope, HVAC distribution, and insulation performance using tools like a blower door, infrared camera, and duct leakage tester. It shows you exactly where your house is wasting energy, with specific measurements rather than guesses. At Walt’s Insulation in Torrance, we deliver a written report with findings and prioritized recommendations. The goal is a house that costs less to heat and cool and feels better in every room.
A full home energy audit in Torrance takes about two to three hours for a typical single-family home. Smaller homes can be done in under two hours; larger or older homes with multiple HVAC systems may take a little longer. We keep the process moving and show you results as the tests run, so you’re not sitting around waiting for a report to arrive later. Call (424) 955-2557 to schedule a time that works for you.
A our Home Energy Audit in Lomita costs $250 to $450 for a complete assessment with blower door testing, thermal imaging, duct testing, and a written report. House size, home age, and number of HVAC zones are the main factors that affect price. Our audits include the full report at no extra charge, and we offer free second opinions on any written estimate from another company. Seniors and veterans always get 10 percent off with Walt’s Insulation.
Yes. Walt’s Insulation has worked with Owens Corning, Johns Manville, Knauf, and Rockwool products in Torrance homes for over 25 years. We know how each brand performs in our coastal climate, and we’ll evaluate whatever insulation is already in your home during the audit. If replacement is needed, we’ll recommend the right product for your house and budget, not a one-size-fits-all brand pitch.
Yes. We answer the phone live 24 hours a day, seven days a week. If you have a moisture issue, a suspected rodent problem in the attic, or an HVAC problem you can’t diagnose, call us and we’ll get a technician out as soon as possible. Emergency and same-week appointments are available for Torrance and the surrounding South Bay. Call (424) 955-2557 any time.
Every job we do is covered by our lifetime workmanship guarantee, the Done Right Promise. If it’s not done right, we make it right, no runaround and no fine print. That applies to air sealing, insulation replacement, duct sealing, and everything else we recommend from your audit. We’ve been in business since 2000, and we’re still here because we stand behind the work.
There’s not much you need to do. Close all windows and exterior doors the morning of the audit, and make sure we can access the attic hatch and crawl space entrance. It helps if you know where your thermostat and HVAC equipment are, and if you’ve noticed specific problem rooms, jot those down. We handle everything else. Call (424) 955-2557 for a free estimate and we’ll walk you through the rest.
Schedule Your Home Energy Audit Service in Torrance Today
Don’t spend another summer paying to cool your attic. A Walt’s Insulation Carson Home Energy Audit gives you real measurements, real recommendations, and a real person to call when you’re ready to fix it. Call (424) 955-2557 now for a free, no-obligation estimate. We answer live, 24/7, and we’ll schedule your Torrance audit at a time that works for you. The one down the road is the one who shows up.
Written by Walt Brenner, Owner at Walt’s Insulation, serving Torrance since 2000.