Trusted Home Energy Audit for Pasadena Homeowners
A home energy audit in Pasadena typically costs $350-$850 depending on home size and test complexity, and most audits are scheduled within 48 hours with same-day results delivered. At Topside Attic Insulation Pasadena, we’ve performed building-envelope diagnostics on more than 9,000 homes since 2016, and every audit begins with a written price before any testing starts. Call (213) 816-5351 to book yours - a live person answers 24/7.
Pasadena’s climate throws a specific combination at older homes: hot, dry summers that push attic temperatures past 140°F, followed by winter nights in the 40s that expose every gap in the thermal envelope. We’ve audited 1920s Craftsmans in Bungalow Heaven, mid-century ranch homes near the Rose Bowl, and newer construction in Chapman Woods. The pattern we see most often is insulation that was upgraded without air sealing first - a homeowner paid for R-38 batts over a ceiling that still leaks 3,000 CFM50 through top plates, can lights, and duct chases. Our audits find those leaks, measure them, and give you a written scope that sequences the work correctly: seal first, then insulate. No exceptions.
Under Haven Standard, you get a named technician, a text when they’re en route, and a Documented Photo Record of every finding. Before-and-after blower-door numbers are published on applicable jobs so you can verify the performance change. The 365-Day Done Right Promise applies to all completed work.
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 home to -50 Pascals and measure airflow in CFM50 - cubic feet per minute at that standardized pressure. In Pasadena, we regularly see pre-audit readings of 3,500-5,500 CFM50 in homes built before 1980, which means you’re heating and cooling the equivalent of an open window’s worth of air leakage, year-round. Our crew seals the obvious leaks during the audit, then returns for comprehensive air sealing if the numbers justify it. Every client receives the before-and-after blower-door readings in writing.
Thermal Imaging Inspection
Thermal imaging, or infrared thermography, converts surface temperature differences into a visual map of heat flow. We use FLIR cameras to scan walls, ceilings, and ductwork during the blower-door test, when the pressure differential makes leaks visible as cold or hot streaks. In Pasadena’s climate, we catch a lot of missed insulation at kneewalls in finished attics - a common issue in the dormered bungalows around Washington Square - and thermal bypasses where balloon framing meets the attic floor. The images go into your Documented Photo Record with annotations explaining what you’re seeing and what it costs to fix.
Insulation Inspection
We measure existing insulation depth, check for compression and moisture damage, and identify where insulation was installed over unsealed penetrations. Pasadena has a lot of vermiculite insulation in pre-1980 homes, particularly in the Madison Heights and Orange Heights areas, and we know how to sample and assess it without disturbing hazardous material. We also check for gaps around chimneys, dropped soffits, and attic hatches - the details that separate an insulated attic from a properly insulated one. Our inspection report specifies exactly what material goes where: dense-pack cellulose from GreenFiber for sidewalls, blown-in fiberglass from Owens Corning or Johns Manville for open attics, or spray foam where air sealing and insulation need to happen in one pass.
Duct Leakage Test
A duct-blaster test pressurizes your HVAC duct system to measure leakage to the outside - air you’re paying to heat or cool that never reaches a register. In Pasadena, we find that 20-35% of duct systems in homes with attic or crawl space runs leak significantly, especially where flex duct connects to hard pipe or where ducts pass through unconditioned spaces. The test takes about 45 minutes and gives you a precise CFM25 reading. We mark every leak with a flag, photograph it, and include repair or replacement options in your written scope. Duct sealing with mastic and proper mechanical fasteners typically pays for itself in 2-4 cooling seasons here.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service for Home Energy Audit
We’ve audited and upgraded insulation systems using Owens Corning products in hundreds of Pasadena-area homes, from AttiCat blown-in fiberglass installations to their ProPink dense-pack systems for walls and cathedrals. Their loose-fill fiberglass performs well in our dry climate, and we know the compression factors and settled-depth requirements for every R-value they publish.
GreenFiber cellulose is our go-to for homeowners who want a recycled-content option with strong air-sealing performance when dense-packed. We’ve installed their Sanctuary product in dozens of local homes, including several historic properties in Old Pasadena where fire resistance and sound dampening matter as much as thermal performance. Johns Manville and Knauf fiberglass batts round out our material options for standard attic floors and crawl space bands. Whether your home currently has one of these brands or a mix of original material and patchwork upgrades from previous owners, we can assess what’s there, what’s missing, and what combination of materials will get you the performance you’re paying for.
Signs You Need Home Energy Audit Right Now
- Your upstairs rooms are 8-15°F warmer than downstairs in summer. This isn’t normal in a properly sealed and insulated home. In Pasadena, we see this most often when attic air sealing was skipped during a previous insulation upgrade, letting superheated attic air infiltrate through top plates and chase walls. A blower-door test plus thermal imaging will pinpoint exactly where the heat is entering.
- Your energy bills spike every July and August despite moderate thermostat settings. If you’re running the AC at 78°F and still seeing $400+ electric bills, your home is working against your equipment. We audit homes in the San Rafael Hills and Linda Vista areas where the combination of unsealed attic floors and leaky ductwork was adding 30-40% to cooling costs.
- You feel drafts near outlets, baseboards, or can lights even with windows closed. These are telltale signs of pressure-driven air leakage, often from the attic or crawl space. Our thermal imaging catches the thermal bypasses that cause them, and our air-sealing scope eliminates them at the source rather than treating symptoms.
- Your insulation was installed more than 15 years ago, or you don’t know when it was done. Older insulation in Pasadena homes is often undersized by current code, compressed by storage or foot traffic, or contaminated by rodent activity. Our inspection tells you what’s salvageable and what needs removal and replacement.
- You’re considering solar panels or a heat pump upgrade. There’s no point in generating or moving more energy if your home leaks it faster than the new system can produce it. We recommend auditing first, sealing and insulating second, then right-sizing your mechanical systems to the improved envelope. We’ve seen homeowners in South Pasadena and Altadena cut their proposed solar array size by 30% after proper air sealing.
Our Home Energy Audit Process - Step by Step
- 1
Schedule and written price. Call (213) 816-5351 or text us. A live person answers, checks availability in Pasadena and surrounding areas, and schedules your audit. Before we arrive, you’ll receive a written price for the audit scope - Haven Standard Clause 1, no exceptions. No work starts without it.
- 2
On-site arrival and walkthrough. Your named technician arrives on schedule with a text when they’re 15 minutes out. We walk the interior and exterior with you, noting comfort complaints, visible issues, and any prior work you’ve had done. This takes 15-20 minutes and shapes what we prioritize during testing.
- 3
Diagnostic testing. We set up the blower door, run the thermal imaging scan under pressure, test duct leakage if accessible, and measure insulation depths throughout the attic and any accessible wall cavities. The testing phase runs 90 minutes to 2.5 hours depending on home size and complexity.
- 4
Findings review and photo documentation. We review the thermal images, blower-door readings, and duct leakage numbers with you in real time. Every finding is photographed, annotated, and included in your Documented Photo Record. You’ll see exactly what we saw - no surprises later.
- 5
Written scope and next steps. Within 24 hours, you receive a written scope with prioritized recommendations, flat pricing for each phase, and a timeline. If you bring us a competing quote, we’ll review it with you under our Free Second Opinion policy. When you’re ready to proceed, we schedule air sealing and insulation work with the same technician who performed your audit.
How Much Does Home Energy Audit Cost in Pasadena?
A standard home energy audit for a single-family home in Pasadena runs $350-$550 for homes up to 2,500 square feet. Larger homes, multi-story properties, or audits requiring duct-blaster testing in addition to blower-door and thermal imaging typically fall in the $550-$850 range. Here’s how that breaks down by common scenarios:
- Basic audit (blower door + thermal imaging + insulation inspection): $350-$450 for homes 1,000-2,000 sq ft
- Standard audit (basic scope + duct leakage test): $450-$650 for homes 2,000-3,500 sq ft
- Comprehensive audit (all tests + combustion safety + moisture assessment): $650-$850 for larger or complex properties
Several factors move the price within these ranges. Homes with multiple HVAC systems require additional duct testing. Properties with finished attics or kneewall spaces need more thermal imaging time. Access issues - steep roofs, cramped crawl spaces, or heavy storage in the attic - add labor. And if we find vermiculite or other hazardous material that requires sampling before disturbance, that’s a separate lab fee we disclose upfront.
What you won’t pay for: callbacks to clarify findings, re-testing after we complete recommended air sealing, or the written scope itself. The audit price includes everything - testing, documentation, and the prioritized repair plan. Many Pasadena homeowners recover the audit cost in the first cooling season through reduced AC runtime after following our air-sealing recommendations.
Under Haven Standard, your written price is your final price. No trip charges, no “while we’re here” add-ons, no pressure to commit to work the same day. And if you’ve already received a written estimate from another contractor, bring it in - our Free Second Opinion means we’ll review their scope and pricing with you, line by line, at no charge.
Home Energy Audit Near Pasadena - Our Service Area
We perform home energy audits throughout the San Gabriel Valley and western San Fernando Valley with typical response times of same-day to 48 hours. Our primary service area includes Pasadena, Altadena, South Pasadena, La Cañada Flintridge, San Gabriel, Alhambra, Glendale, Arcadia, Temple City, Rosemead, Monterey Park, and El Monte. Crews dispatched from our Pasadena base reach Altadena and South Pasadena in under 30 minutes, Glendale and La Cañada Flintridge in 35-50 minutes, and eastern San Gabriel Valley cities within the hour. If you’re outside this radius, call anyway - we schedule audits in outlying areas with slightly longer lead times and no additional travel fees within 25 miles of Pasadena City Hall.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena
A home energy audit is a diagnostic evaluation of your building’s thermal envelope, air leakage, insulation performance, and duct system efficiency using specialized equipment including a blower door, thermal camera, and duct blaster. At Topside Attic Insulation Pasadena, our audit produces a written report with blower-door readings in CFM50, annotated thermal images, insulation depth measurements, and a prioritized scope of recommended air sealing and insulation upgrades. You’ll know exactly where your home is losing energy and what it costs to fix it before any work begins.
Most home energy audits in Pasadena take 2.5 to 4 hours from arrival to completion, depending on home size, accessibility, and whether duct testing is included. A 1,200-square-foot bungalow with an open attic and no ductwork might finish in under two hours; a 3,500-square-foot multi-story home with finished attic space, crawl space, and two HVAC systems can run four to five hours. We schedule generously so the technician isn’t rushing - thorough diagnostics take time, and cutting corners produces incomplete scopes that cost you money later.
A home energy audit in Pasadena typically costs $350-$850 depending on home size, test complexity, and whether duct leakage testing is included. Basic audits with blower-door and thermal imaging start around $350 for smaller homes; comprehensive audits with full duct testing and combustion safety checks run $650-$850 for larger properties. Call (213) 816-5351 for a written price specific to your home - estimates are free, and the audit price is locked before we arrive.
Yes - we’ve audited, upgraded, and repaired insulation systems using Owens Corning fiberglass, GreenFiber cellulose, Johns Manville, Knauf, and most other major brands found in Pasadena-area homes. We don’t have exclusive relationships with any manufacturer, which means our recommendations are based on your home’s specific needs rather than inventory we need to move. If your existing insulation is in good condition, we’ll tell you so; if it’s undersized, compressed, or installed over unsealed air leaks, we’ll show you the thermal imaging evidence and specify exactly what replacement or supplementation is warranted.
We schedule standard audits within 24-48 hours, and same-day availability exists for urgent situations such as post-remediation clearance testing or pre-purchase evaluations with contract deadlines. True emergencies - like a homeowner without heat during a cold snap who suspects major envelope failure - get priority scheduling and a technician who can perform basic air sealing on the spot if the audit confirms critical leakage. Call (213) 816-5351 anytime; a live person answers 24/7 and will tell you honestly whether same-day or next-day service is available.
The audit itself is covered by our 365-Day Done Right Promise - if we missed something that should have been caught, we return and re-audit at no charge. More importantly, any air sealing or insulation work we perform following the audit carries the same 365-Day Done Right Promise plus material warranties from the manufacturer: Owens Corning and Johns Manville fiberglass typically carry lifetime limited warranties, GreenFiber cellulose carries a limited lifetime warranty, and spray foam warranties vary by product and application. All warranties and the scope they cover are delivered in writing before work starts, per Haven Standard.
Close all windows and exterior doors at least 12 hours before the audit so we can test under normal operating conditions; leave interior doors open so air can flow between rooms. Make the attic hatch, crawl space access, and electrical panel accessible - we need to reach these areas for testing and photography. If you have fireplaces, don’t use them for 24 hours prior. Gather your last 12 months of gas and electric bills if you have them; they help us correlate our findings with your actual consumption patterns. Don’t worry about cleaning or staging - we’re looking at building performance, not housekeeping.
Schedule Your Home Energy Audit Service in Pasadena Today
Call (213) 816-5351 now to schedule your home energy audit in Pasadena. A live person answers 24/7, and you’ll receive a written price before any work starts - no exceptions, no surprises. We’ll test your home’s envelope, show you exactly where the energy is going, and give you a documented plan to fix it. Estimates are free, second opinions are free, and every job closes with a Documented Photo Record and, on applicable work, before-and-after blower-door numbers you can verify yourself.
Written by Wes Okafor, Owner at Topside Attic Insulation Pasadena, serving Pasadena, Altadena, South Pasadena, and surrounding communities since 2016.