Trusted Home Energy Audit for Seguin Homeowners
A Home Energy Audit - Seguin typically costs between $250 and $550 for a full diagnostic evaluation, and most appointments can be scheduled within 48 hours. Our crew arrives with a blower door, thermal camera, and duct blaster to measure exactly where your conditioned air is escaping and what it’s costing you on your CPS Energy or GVEC bill. We’ve sealed and insulated more than 9,000 homes since 2016, and every audit we perform in Seguin ends with a written report, documented photos, and a flat-price proposal if work is needed. No estimate leaves our hands without a real number on it. Call (830) 549-6646 to book a slot, or text us if that’s easier.
What Our Home Energy Audit Service Includes
Blower Door Test
The blower door test is a pressurization reading that shows, in one number, how much air your building envelope is losing. We mount a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure the airflow in CFM50 - cubic feet per minute at that standardized pressure. In Seguin, we regularly see pre-audit readings above 3,500 CFM50 in homes built between 1980 and 2010, especially in neighborhoods like Oak Village and River Oaks where slab-on-grade construction with minimal attic sealing was standard. After our air sealing work, we run the test again and publish both numbers on your job record so you can verify the improvement yourself.
Thermal Imaging Inspection
Our FLIR thermal cameras detect surface temperature differences as small as 0.1 degrees Fahrenheit, revealing insulation gaps, air leaks, and moisture intrusion that the eye cannot see. In Seguin’s climate - where summer attic temperatures routinely hit 140°F and winter cold fronts can drop overnight lows into the 20s - thermal bridging through uninsulated wall studs and missing attic insulation creates predictable patterns we can trace in real time. We scan every accessible exterior wall, ceiling, and floor during the audit, and the images become part of your Documented Photo Record. Homeowners in the Weinert Hill area often call us after noticing hot spots on their second-floor ceilings; the camera usually shows missing or settled blown-in insulation directly above.
Insulation Inspection
We measure existing insulation depth with a ruled probe, identify the material type (fiberglass batts, blown cellulose, spray foam, or mineral wool), and check for compression, water staining, rodent damage, and improper installation. Seguin homes built during the 2000s building boom frequently have fiberglass batts installed with gaps around electrical boxes and top plates - a detail that drops the effective R-value by 20% or more even when the label says R-30. We also check for the common local issue of insulation blown over unsealed can lights and HVAC penetrations, which we will never do in our own work. Our inspection report notes exactly what we found, where, and what it means for your heating and cooling load.
Duct Leakage Test
The duct blaster test pressurizes your HVAC duct system to 25 Pascals and measures the leakage rate as a percentage of system airflow. In Texas, the IRC energy code allows up to 8% leakage for new construction; we routinely measure 25-40% in older Seguin homes, particularly in split-level and ranch-style houses with duct runs through vented attics. That leakage dumps conditioned air into 130°F attic space in July and pulls that same superheated air into your return ducts. We seal accessible ductwork with mastic and mesh tape, then retest to verify the reduction. The before-and-after numbers go in your written report, along with photos of every sealed joint.
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 insulation systems in hundreds of Seguin-area homes, from their ProPink blown-in fiberglass to their Foamular rigid board applications in crawl spaces. Their products are common in local builds from 1995 onward, and we know how to integrate new Owens Corning materials with existing installations without creating thermal boundaries that trap moisture. We also specify Icynene open-cell spray foam for conditioned attic conversions in older Seguin homes where ductwork relocation isn’t practical - the product expands to fill irregular cavities and provides both insulation and air sealing in one pass, though we still detail-seal top plates and electrical penetrations before spraying.
Demilec closed-cell foam is our specification for crawl space encapsulation and rim joist sealing in the Guadalupe River floodplain areas, where humidity control matters as much as thermal performance. GreenFiber cellulose is what we blow into netted wall cavities and over sealed attic floors when homeowners want a recycled-content option with good density and fire resistance. Whether your home was built with Knauf batts, Johns Manville blown wool, CertainTeed MemBrain, or any combination of materials, we can identify what you have, assess its condition, and specify the right fix without locking you into a proprietary product line.
Before
AfterSigns You Need Home Energy Audit Right Now
- Your upstairs rooms stay 8-12°F hotter than downstairs in July. This temperature stratification usually means your attic insulation is inadequate, your ductwork is leaking into the attic, or both. In Seguin’s climate, a 1,800 square foot second floor can add $80-$120 per month to your electric bill from June through September while the downstairs over-cools to compensate.
- You can feel drafts around outlets, baseboards, or can lights even when windows are closed. These are direct air leakage paths from your conditioned space to the attic or wall cavities. The stack effect pulls warm air upward in winter and superheated attic air downward in summer, and every cubic foot that escapes is replaced by unconditioned air your HVAC must treat.
- Your electric bill spikes $50+ in summer with no change in thermostat setting. A sudden increase often means your air conditioner is running longer to overcome new or worsening envelope losses. We’ve traced this pattern in Seguin homes where attic insulation has settled, rodent activity has tunneled through batts, or duct tape has dried and failed on attic duct joints.
- You’ve never had your ductwork tested for leakage. If your home was built before 2012 in Guadalupe County, there’s a strong chance your ducts leak 20% or more of their airflow. That is conditioned air you paid to create, lost to your attic or crawl space, with no diagnostic ever performed to measure the waste.
- You’re considering new insulation but don’t know what’s there now. Blowing new material over damaged, compressed, or improperly installed existing insulation traps problems and often makes performance worse. An audit tells you what to remove, what to seal, and what to add - in that exact order.
Our Home Energy Audit Process - Step by Step
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Schedule and confirm. When you call (830) 549-6646 or text us, a live person answers and books your audit with a two-hour arrival window. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way. We confirm your square footage, HVAC system type, and any specific concerns so we bring the right equipment.
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Exterior and attic access inspection. Our technician walks the exterior to note wall construction, window age, roof color and condition, and any visible penetrations. In Seguin, we pay particular attention to slab-edge exposure, brick weep holes, and patio roof attachments - all common leakage paths in local construction. We then access the attic to assess existing insulation, ventilation, and any active moisture or rodent issues before testing begins.
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Blower door test and thermal imaging. With the house depressurized, we use the thermal camera to trace every air leak the blower door reveals. The combination gives us a complete map: the fan quantifies total leakage, the camera shows us exactly where it’s coming from. We mark problem areas with painter’s tape for photo documentation.
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Duct blaster test and insulation probe. If ductwork is accessible, we seal the return and supply registers and run the duct leakage test. We probe insulation depth at multiple attic locations, check for proper ventilation baffles at eaves, and photograph any deficiencies. Every reading goes on your record.
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Written report and flat-price proposal. Within 24 hours, you receive your Documented Photo Record: blower-door numbers, thermal images with annotations, insulation depth map, duct leakage percentage, and a written scope of recommended work with a single flat price. No work starts without your written approval and a signed scope. If you bring us a competing quote, we’ll read it with you as a Free Second Opinion.
How Much Does Home Energy Audit Cost in Seguin?
A standard home energy audit for a single-family home in Seguin runs between $250 and $400 for homes up to 2,500 square feet, so you know how much Home Energy Audit costs upfront. Larger homes, typically 3,000-4,500 square feet in the Elm Creek and Meadow Creek subdivisions, range from $350 to $550 due to additional thermal imaging time and multiple HVAC zones to test. The duct leakage test adds $150-$250 when performed as a standalone service, but we bundle it at reduced cost when packaged with the full audit.
Several factors move the price within these ranges. Homes with multiple attic accesses, detached garage HVAC systems, or crawl space ductwork require more test time. Older homes in the historic downtown district often need careful blower-door setup to avoid damaging original windows or doors. If you’ve already had an energy audit from another contractor and want our Free Second Opinion on their recommendations, we apply the full audit fee toward any work we perform.
What affects the price most is whether the audit is diagnostic-only or bundled with repair work. A standalone audit gives you the data and a written scope; if you proceed with air sealing or insulation, we credit the audit cost against the project total. Every proposal includes a Written Price Before Any Work Starts - Haven Standard Clause 1 - with no hidden charges for “additional findings” discovered mid-job. The documented photos, blower-door readings, and written warranty are included, not extra.
To avoid overpaying, be specific about what you’re getting. Some Seguin contractors advertise a “$99 energy assessment” that is a sales presentation with a flashlight, not a diagnostic with calibrated equipment. Ask whether the blower door is a Minneapolis Blower Door or equivalent calibrated unit, whether thermal imaging is performed with the house pressurized, and whether you’ll receive written results with actual numbers. If the answer is vague, the audit probably is too.
Home Energy Audit Near Seguin - Our Service Area
We perform energy audits throughout Guadalupe County and into the I-35 corridor, with typical drive times under 30 minutes to New Braunfels, Cibolo, Schertz, Universal City, Selma, and Converse. Live Oak, Windcrest, and Kirby are within our standard service radius, as are Canyon Lake and the Hill Country fringe communities. For Terrell Hills and Alamo Heights homeowners with weekend properties near McQueeney or Lake Placid, we coordinate audit scheduling with your visit. Response time for standard appointments is 24-48 hours; if your audit reveals an active issue like a disconnected duct in a 105°F attic, we can often return same-week to seal it.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 Seguin
A home energy audit is a diagnostic evaluation that measures how much conditioned air your house loses and identifies exactly where the losses occur. Our audit combines a blower-door test for total leakage, thermal imaging for leak location, insulation inspection for R-value and condition, and duct leakage testing for HVAC efficiency. You receive a written report with photos, numbers, and a flat-price proposal for any recommended work.
Most audits in Seguin take 2.5 to 4 hours depending on home size, accessibility, and whether duct testing is included. A 1,600 square foot ranch with a single attic access and accessible crawl space typically runs under three hours; a 3,500 square foot two-story with multiple zones and a detached garage unit can take the full four. We schedule a two-hour arrival window and text you when the technician is en route.
Expect $250-$400 for homes up to 2,500 square feet, and $350-$550 for larger homes up to 4,500 square feet. The duct leakage test adds $150-$250 standalone, or is bundled at reduced cost with the full audit. We credit the full audit fee against any air sealing or insulation work you proceed with. Call (830) 549-6646 for a written quote - estimates are free and flat-priced before any work starts.
Yes. We’ve audited and upgraded hundreds of homes with Owens Corning fiberglass and rigid board installations, and we specify Icynene open-cell foam for conditioned attic conversions where ductwork must stay in the thermal envelope. We do not have exclusive arrangements with any manufacturer - we choose materials based on your home’s specific conditions, not product quotas.
We do not perform emergency audits, but we do answer calls 24/7 and can often schedule within 24-48 hours for urgent situations like a disconnected duct dumping conditioned air into a 140°F attic or a failed crawl space vapor barrier causing active moisture damage. If your situation involves immediate health or safety risk - gas leak, electrical hazard, structural concern - we direct you to the appropriate emergency service first, then schedule our audit.
All completed work carries our 365-Day Done Right Promise - if it’s not done right, we make it right. The audit itself is a diagnostic service; if we miss a condition we should have identified, we return at no charge to complete the inspection. Any air sealing or insulation work we perform includes a written warranty delivered before the crew starts, with before-and-after blower-door numbers as proof of performance.
Close all windows and exterior doors at least two hours before arrival, set your HVAC to its normal operating schedule, and make attic and crawl space accesses clear of storage. If you have recent electric bills, have them ready - we use 12 months of usage data to correlate our findings with your actual consumption. Pets should be secured; the blower door creates noise and airflow that can stress animals. The technician will need access to all rooms, including closets with HVAC returns or attic hatches.
Schedule Your Home Energy Audit Service in Seguin Today
Call (830) 549-6646 or text us to book your audit with a named technician and a flat price before anyone arrives. We’re independently owned and operated under The Haven Standard since 2016, with live answer 24/7 and no voicemail loops. Your audit includes a blower-door test, thermal imaging, insulation inspection, and documented photo record - with real numbers you can verify. Free Second Opinion available on any written estimate from another contractor.
Written by Wes Okafor, Owner at Topside Attic Insulation Seguin, serving Seguin, New Braunfels, Cibolo, and surrounding communities since 2016.