Trusted Home Energy Audit for Campbell Homeowners
A home energy audit in Campbell typically costs between $350 and $650 for a full assessment, and you can read more about how much Home Energy Audit costs, and most are completed in a single visit with written findings delivered within 48 hours. If your PG&E bills spike during Santa Clara Valley summers or your upstairs rooms won’t hold temperature, the audit identifies exactly where conditioned air is escaping and what fixes will pay back fastest.
We’ve been operating under The Haven Standard since 2016, and we’ve sealed and insulated over 9,000 homes. Every one started with a written price before any work began. In our Home Energy Audit in Campbell, we regularly see the same pattern: 1970s ranch homes off Bascom Avenue with original fiberglass insulation sitting on top of unsealed top plates, and newer townhomes near the Pruneyard with duct systems leaking 25% of their airflow into attics that hit 140°F in August. We don’t guess. We run a blower-door test, shoot thermal images, and give you the numbers. Call (831) 534-3206 to schedule. A live person answers 24/7.
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 with a calibrated fan mounted in an exterior door frame, then measure the airflow required to maintain a 50-pascal pressure difference. In Campbell, we often find older homes near downtown reading 4,000 CFM50 or higher, well above the 2,500 CFM50 threshold where comfort and efficiency degrade noticeably. We publish your before-and-after number on every job that includes air sealing, so you can verify the improvement yourself.
Thermal Imaging Inspection
We use infrared cameras to visualize surface temperature differences that reveal hidden air leaks, missing insulation, and moisture intrusion. During a Campbell summer audit, a thermal scan of your ceiling might show 95°F hot spots where attic insulation has settled away from the drywall, or 55°F bands along exterior walls where fiberglass batts were compressed during installation and lost their rated R-value. We document every image in your photo record, with annotations explaining what you’re seeing and what it means for your energy bills.
Insulation Inspection
We measure existing insulation depth, identify the material type, check for proper installation, and flag conditions that reduce performance. In Campbell’s Willow Glen-adjacent neighborhoods, we find a lot of 1970s-era rockwool batts that have settled from R-19 to effective R-11, and newer homes near Westmont High with blown-in fiberglass that was installed over unsealed recessed can lights, creating direct convection paths into the attic. Our inspection includes a written assessment of whether your insulation meets current Title 24 standards and what it would take to get there.
Duct Leakage Test
A duct leakage test pressurizes your HVAC duct system and measures how much air escapes to unconditioned spaces. California’s Title 24 now requires new duct systems to leak no more than 6% of total airflow; we routinely test Campbell homes with 20% to 40% leakage, meaning a quarter of your heating and cooling budget is conditioning your attic or crawl space. We seal accessible leaks with mastic and proper mechanical fasteners, then retest to confirm the improvement. The before-and-after numbers go in your documentation packet.
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 extensively with Knauf insulation systems, particularly their EcoFill blown-in fiberglass and Jet Stream MAX products, which we specify for many Campbell attic upgrades where the homeowner wants high R-value per inch without the density settling issues we’ve seen with lower-grade materials. Our crews are trained to achieve the coverage densities Knauf specifies, and we verify with depth gauges across the attic floor.
We also specify Rockwool Comfortbatt and Comfortboard in applications where fire resistance and sound dampening matter, such as shared walls in Campbell’s multi-family housing near the downtown corridor. Rockwool’s higher density and moisture resistance make it suitable for certain wall cavities and basement applications where fiberglass underperforms. Whether you have Knauf, Rockwool, CertainTeed, or any other insulation brand in your home, we can assess its condition and specify the right replacement or supplement. We source from multiple manufacturers, including Icynene and Owens Corning, so our recommendations are based on your home’s needs, not a product lock-in.
Before
AfterSigns You Need Home Energy Audit Right Now
- Your PG&E bill jumps 30% or more in summer months. Campbell’s cooling degree days have increased steadily, but a sudden spike usually means your air conditioner is working harder than it should. The audit pinpoints whether the problem is duct leakage, envelope infiltration, or an undersized system fighting a losing battle against attic heat gain.
- Upstairs rooms are 8°F to 12°F warmer than downstairs in summer. This isn’t normal. In Campbell’s two-story homes, especially those built between 1965 and 1995 near East Campbell, we find that unsealed top plates and poorly insulated attic hatches create a thermal chimney effect that dumps hot attic air into second-floor wall cavities. A blower-door test and thermal scan confirm it.
- You feel drafts near outlets, baseboards, or window frames even when everything is closed. These are telltale signs of envelope leakage, often from missing or deteriorated caulking, unsealed sill plates, or gaps around plumbing and electrical penetrations. In older Campbell homes near the original downtown grid, we’ve measured equivalent holes of 4 square feet or more in the building envelope.
- Your insulation looks flat, discolored, or has visible gaps. Fiberglass batts that have been compressed by storage traffic or settled over decades lose significant R-value. Dark streaks on attic insulation indicate air filtration, meaning conditioned air is passing through the material rather than being blocked by it. The insulation inspection tells you what’s salvageable and what needs replacement.
- Your HVAC runs constantly but never reaches the thermostat setpoint. This is the classic symptom of a system that’s sized correctly for your home’s load but is losing conditioned air faster than it can be replaced. The duct leakage test and blower-door test together separate duct problems from envelope problems, so you don’t spend money fixing the wrong thing.
Our Home Energy Audit Process - Step by Step
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Schedule and confirmation. Call (831) 534-3206 or request online. A live person answers 24/7. We confirm your appointment with a text and email, including the name of your technician and a photo. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
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On-site interview and walkthrough. Your technician asks about specific comfort complaints, reviews 12 to 24 months of energy bills if you have them, and walks the home with you to note any areas of concern. In Campbell, we often hear about the west-facing rooms that overheat after 3 p.m., or the guest bedroom that never gets used because it’s too cold in January.
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Diagnostic testing. We perform the blower-door test, thermal imaging scan, insulation inspection, and duct leakage test as applicable. The sequence matters: we run the blower door first to establish baseline envelope leakage, then use thermal imaging while the house is still depressurized to make air leaks visible. Duct testing follows, with the system both pressurized and operating to catch leaks under realistic conditions.
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Written findings and prioritized recommendations. You receive a written report with your blower-door number, thermal images with annotations, insulation R-value measurements, duct leakage percentage, and a prioritized scope of work with flat pricing for each item. This is Haven Standard Clause 1: written price, written scope, written warranty before anyone lifts a tool.
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Documentation delivery and next steps. Your Documented Photo Record, including all thermal images and test readings, is delivered electronically within 48 hours. If you choose to proceed with recommended work, we schedule and guarantee the same written price. If you want a Free Second Opinion on any competing quote, bring it in and we’ll review it with you line by line.
How Much Does Home Energy Audit Cost in Campbell?
A standard home energy audit for a single-family home in Campbell runs $350 to $650. The exact figure depends on home size, number of HVAC systems, and whether you need a full duct leakage test or just a blower-door and thermal survey. A typical 1,500-square-foot ranch home with a single furnace and accessible attic falls at the lower end, around $350 to $450. A 3,200-square-foot two-story with dual-zone HVAC, a crawl space, and a complex roofline requiring multiple thermal imaging passes runs toward the upper end, sometimes $550 to $650.
What moves the price: square footage directly affects blower-door setup time and the number of thermal images required; homes with multiple attic accesses or finished attics need more inspection time; duct leakage testing adds equipment setup and two test cycles (before and after any sealing); and crawl space encapsulation assessments require full PPE entry and moisture readings. What doesn’t move the price: we don’t charge extra for travel within our Campbell service area, and we don’t upsell the report format. Every audit includes the same written findings and photo documentation.
To avoid overpaying, watch for auditors who quote a low site visit fee but charge separately for the written report, or who use the audit as a lead-in for high-pressure insulation sales without showing you the test numbers. Our price covers everything: the testing, the written report with prioritized recommendations, and the photo record. If you move forward with recommended work, we credit the audit fee toward your project. Call (831) 534-3206 for your exact written price. Estimates are free, and under Haven Standard, the price we write is the price you pay.
Home Energy Audit Near Campbell - Our Service Area
We serve Campbell and surrounding Santa Clara Valley communities with typical response times of same-day to 48 hours for audit scheduling. Our technicians regularly work in Los Gatos, where hillside homes present unique envelope challenges; Saratoga, with its mix of mid-century ranches and new construction; and throughout Cupertino, Santa Clara, San Jose, Sunnyvale, Alum Rock, Los Altos, East Foothills, Mountain View, and Milpitas. Travel to any of these cities is included in our standard pricing. If you’re unsure whether your address falls within our coverage, call (831) 534-3206 and we’ll confirm while you have us on the line.
Serving Campbell, CA - Our Local Coverage Area
We’re based in the Campbell 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 Campbell
A home energy audit is a systematic diagnostic assessment of how your home uses and loses energy, combining blower-door testing, thermal imaging, insulation inspection, and duct leakage measurement to produce a prioritized list of improvements with expected payback periods. In Campbell, most audits reveal that air sealing and duct repair deliver faster returns than insulation upgrades alone, because our dry climate and large diurnal temperature swings make infiltration a bigger factor than in coastal zones. You leave with specific numbers, not generic advice.
A complete audit takes 2.5 to 4 hours for a typical single-family home in Campbell, depending on size and system complexity. The blower-door test itself runs 30 to 45 minutes, thermal imaging adds another 30 to 60 minutes as we scan every exterior wall and ceiling surface, and the duct leakage test requires 45 minutes to an hour including setup and breakdown. We schedule morning or afternoon windows and send a text when your technician is en route.
Most Campbell homeowners pay between $350 and $650 for a full audit, with the median around $450 for a 2,000-square-foot home with a single HVAC system. The audit fee is credited toward any work you hire us to complete within 90 days. We publish this range because Haven Standard Clause 1 requires a written price before any work starts, and that includes the audit itself. Call (831) 534-3206 for your exact quote.
Yes. We’ve installed and assessed thousands of Knauf systems in Santa Clara County, from original EcoFill blown-in fiberglass in Campbell attics to newer Jet Stream MAX specifications in custom homes near Home Energy Audit - Los Gatos. We know the coverage densities, settling characteristics, and compatibility with air sealing protocols. If your home has Knauf, Rockwool, or any other brand, we can evaluate its current performance and specify appropriate upgrades.
We schedule standard audits within 24 to 48 hours, and we maintain limited same-day slots for situations where a recent HVAC failure or sudden comfort crisis requires immediate diagnostic information. True emergencies, such as a failed furnace in January with elderly residents, get priority. Call (831) 534-3206; a live person answers 24/7 and can tell you today’s availability.
The audit itself is covered by our 365-Day Done Right Promise: if any test reading or written finding proves inaccurate due to our error, we return and retest at no charge. If you proceed with recommended work, that work carries its own written warranty under Haven Standard, with terms specified in your scope document before any work begins. You receive both warranties in writing, not verbally.
Close all windows and exterior doors at least 4 hours before your appointment, gather 12 to 24 months of PG&E bills if available, and make attic and crawl space accesses clear of storage. We need the home in its normal operating condition, so don’t adjust thermostats or open windows to “help” the test. If you have specific comfort complaints, write them down with the times of day they occur. Your technician will use this information to focus the thermal imaging and interpret results in context.
Schedule Your Home Energy Audit Service in Campbell Today
Call (831) 534-3206 now to schedule your our Home Energy Audit in Saratoga or Campbell. A live person answers 24/7, and we’ll confirm your appointment with a named technician, arrival window, and text notification when they’re en route. Your written price, written scope, and written warranty arrive before any work starts, guaranteed under The Haven Standard since 2016. The audit takes one visit. The findings last as long as you own your home.
Written by Wes Okafor, Owner at Envelope Insulation Co., serving Campbell since 2016.