Trusted Attic Air Sealing for Burbank Homeowners
Attic Air Sealing in Burbank typically costs between $1,200 and $3,800 depending on attic size and leak severity, and most jobs are completed in a single day. We start every project with a blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing - and we publish the before-and-after results so you can verify the performance change you paid for. We’ve sealed and insulated over 9,000 homes since 2016, and every one began with a written price before any work started and ended with a documented photo record. If your Burbank home has hot second-floor rooms, dust that returns hours after cleaning, or energy bills that spike every August when the San Fernando Valley heat settles in, the attic is likely the culprit. Call (213) 816-1699 and a live person will pick up, 24/7.
What Our Attic Air Sealing Service Includes
Attic Floor Air Sealing
The attic floor is where your conditioned living space meets unconditioned attic air, and in Burbank’s older ranch and mid-century homes - especially in neighborhoods like Magnolia Park and the Rancho - this boundary is rarely airtight. We seal all gaps, cracks, and seams in the attic floor decking, focusing on the perimeter where framing meets drywall and around any dropped soffits or chases that connect to conditioned space below. Most Burbank homes we test show significant leakage here, and sealing it first prevents the “wind washing” that degrades insulation performance. We use Owens Corning sealants and tapes rated for attic temperature cycling, and we never blow insulation over an unsealed attic floor.
Top Plate & Penetration Sealing
Top plates are the horizontal framing members where interior walls meet the ceiling, and they’re drilled repeatedly for electrical, plumbing, and HVAC runs - creating a highway for conditioned air to escape into the attic. In Burbank’s hillside homes above Glenoaks Boulevard, pressure differentials between floors make these leaks especially costly. We seal every top plate joint with fire-rated caulk and foam, then address each penetration individually: wire holes, pipe bores, vent stacks, and chimney chases. This is precision work that takes time, which is why many contractors skip it. We don’t. Under Haven Standard Clause 1, it’s written into every scope before anyone lifts a tool.
Can Light & Duct Boot Sealing
Recessed can lights and HVAC duct boots are two of the most common failure points we find in Burbank attics. Older non-IC-rated cans create both an air leak and a fire hazard; we seal them with fire-rated covers and appropriate gaskets, or we recommend replacement with airtight IC-rated fixtures. Duct boots - the sheet metal transitions where flex duct connects to ceiling registers - often separate from drywall over years of thermal expansion, leaking conditioned air directly into the attic. We reseat, seal, and support every boot, then verify with a smoke pencil or theatrical fog during the blower-door test. In homes near the Burbank Airport flight path, we’ve found these leaks compound noise penetration too.
Attic Hatch Sealing
The attic hatch is the only intentionally movable part of your ceiling plane, and it’s almost never sealed properly. We install rigid insulated hatch covers with compression gaskets and latch mechanisms that maintain contact pressure year-round. For pull-down stairs, we build sealed enclosures from Johns Manville rigid board or Rockwool-covered framing, depending on clearances and code requirements. Every hatch we seal gets a weatherstrip inspection as part of our 365-Day Done Right Promise. If the gasket compresses or the latch loosens, we make it right.
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 Attic Air Sealing
We’ve worked extensively with Owens Corning sealing systems, including their Foamular rigid board and EnergyComplete spray foam packages, in hundreds of Burbank-area homes since 2016. Their products integrate reliably with blower-door verification protocols, which matters when you’re publishing before-and-after numbers on every job. We also specify Johns Manville AP Foil-Faced foam board for hatch enclosures and penetration blocking in attics with limited headroom, where every inch of R-value counts.
Knauf insulation and sealing products appear regularly in the homes we service, particularly in the 2015-2020 construction stock around the Media District and downtown Burbank. We’re familiar with their EcoSeal water-based elastomeric sealant and have used it successfully in homes where occupants have chemical sensitivities. Whether your home was built with GreenFiber, Owens Corning, Johns Manville, Knauf, or any other make, we can source compatible materials and verify the assembly performs as designed. No proprietary lock-in, no brand exclusivity claims - just what works for your specific building.
Before
AfterSigns You Need Attic Air Sealing Right Now
- Hot second-floor rooms that never cool evenly. In Burbank’s August heat, when temperatures climb past 95°F and stay there for weeks, unsealed attics can reach 140°F. That thermal load radiates through the ceiling plane and overwhelms your HVAC’s capacity to maintain setpoints upstairs. If your downstairs reads 74°F and your master bedroom won’t drop below 82°F, the attic is almost certainly leaking conditioned air and pulling superheated attic air in through pathways you can’t see.
- Dust that returns within hours of cleaning. Burbank sits at the western edge of the San Fernando Valley, and seasonal Santa Ana winds pull fine particulate through every gap in your ceiling plane. When we run blower-door tests in homes near the Verdugo Mountains, we often find attic air leaking around can lights and top plates - carrying insulation fibers, rodent debris, and Valley dust directly into your living space. Sealing these pathways stops the infiltration at its source.
- Ice dam formation or uneven roof melt patterns in winter. Even Burbank’s mild winters can produce ice dams when warm conditioned air leaks into the attic and melts roof snow unevenly. The water refreezes at the eaves, backs up under shingles, and damages sheathing. We’ve documented this in hillside homes above Glenoaks where attic bypasses around chimneys and vent stacks created concentrated heat loss patterns visible from the street.
- Energy bills that spike 30% or more in summer months. Southern California Edison time-of-use rates hit their highest tiers precisely when your attic is hottest and your HVAC is working hardest. An unsealed attic forces your system to condition air that escapes in minutes, then condition replacement air that enters hot and humid. The blower-door test quantifies this loss in CFM50 - cubic feet per minute at 50 Pascals of pressure - and our before-and-after readings typically show 40-60% reduction after proper sealing.
- Insulation that appears disturbed or “wind-washed.” If your attic insulation looks thinner near the eaves, discolored in streaks, or has debris accumulated on top, air is moving through it. Insulation only works when air is still; moving air strips heat faster than still air and carries filtration dirt that darkens the surface. In Burbank’s older homes with original Knauf or Owens Corning batts, we see this pattern constantly - and we fix it by sealing first, then replacing or supplementing insulation.
Our Attic Air Sealing Process - Step by Step
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Written price and scope before any work starts. We arrive with a tablet, not a clipboard and a promise. After a walkthrough and preliminary inspection, we deliver a flat price, a written scope of work, and a written warranty - all before anyone enters the attic. This is Haven Standard Clause 1, non-negotiable. You’ll know exactly what you’re paying, what you’re getting, and what happens if something isn’t right.
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Blower-door test and infrared scan. We depressurize your home to 50 Pascals and measure the baseline CFM50 - the total air leakage rate. Then we use a thermal imaging camera to map the largest attic bypasses while the house is under pressure. In Burbank’s flat-roofed mid-century homes, we often find surprising leakage around perimeter walls where the roof deck meets the top plate. The photos and readings go into your documented record.
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Systematic air sealing from largest to smallest leaks. We start with the big movers: attic hatches, dropped soffits, chimney chases, and whole-house fan openings. Then we move to top plates, penetrations, can lights, and duct boots. Every sealant application is photographed, and we use only materials rated for the temperature and fire exposure they’ll see - never hardware-store foam where fire-rated products are required by California code.
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Post-sealing blower-door verification. After sealing, we run the blower door again and compare the new CFM50 to your baseline. Most Burbank homes show 35-55% reduction, though results vary with construction type and starting condition. We print the before-and-after numbers, explain what they mean for your actual energy use and comfort, and add them to your documented photo record. You leave with physical proof of performance change.
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Final walkthrough and documentation delivery. Your technician reviews every photo, every reading, and every sealed location with you. We deliver the written warranty, the 365-Day Done Right Promise terms, and a USB drive or cloud link with your complete documented record. If insulation replacement or supplementation is the next step, we schedule it - but only after the sealing is verified. Sealed first, then insulated. In that order.
How Much Does Attic Air Sealing Cost in Burbank?
A typical attic floor air sealing job in a 1,200-1,800 square foot Burbank home runs $1,200-$2,400. Top plate and penetration sealing adds $400-$800 depending on the number of interior walls and the density of electrical and plumbing runs. Can light sealing with fire-rated covers runs $75-$150 per fixture, and duct boot sealing is typically $100-$200 per boot. A comprehensive attic hatch rebuild with rigid insulation and gasketed closure adds $350-$650. Most whole-attic sealing projects in Burbank fall between $2,200 and $3,800 when multiple systems are addressed together.
Several factors move the price: attic accessibility (steep roof pitches in the hillside neighborhoods above Glenoaks slow work), existing insulation that must be moved and replaced (we don’t blow new over old without inspection), the age and condition of can lights (non-IC fixtures require replacement, not just sealing), and the presence of active rodent issues that must be remediated first. Homes in the Media District’s 2000s construction stock often need less penetration sealing but more attention to duct boot integrity, while 1950s Magnolia Park ranches typically show extensive top plate leakage and original can lights.
We don’t estimate over the phone - every attic is different, and “typical” doesn’t apply to your specific building until we’ve seen it. What we do guarantee: the price we write is the price you pay, with no change orders for conditions we should have identified during inspection. Bring us any competing written estimate and we’ll provide a Free Second Opinion, line by line. And every estimate we deliver is free, with no obligation.
Attic Air Sealing Near Burbank - Our Service Area
We work throughout the San Fernando Valley and adjacent communities, with typical response times under 90 minutes to Glendale, La Cañada Flintridge, and Pasadena; same-day service to West Hollywood, Beverly Hills, and Culver City; and next-day scheduling to San Fernando, Alhambra, Altadena, South Pasadena, and Los Angeles proper. Many of our Burbank customers found us through neighbors in Glendale who shared their blower-door results. If you’re unsure whether we cover your address, call (213) 816-1699 - a live person answers, 24/7, and we’ll give you a straight answer about timing.
Serving Burbank, CA - Our Local Coverage Area
We’re based in the Burbank area and know this community well; we also provide our Attic Air Sealing in Glendale. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Attic Air Sealing in Burbank
Attic air sealing is the process of closing gaps, cracks, and penetrations in your ceiling plane and attic floor that allow conditioned air to escape into the attic and unconditioned attic air to leak into your living space. We use specialized sealants, foams, tapes, and rigid barriers to create a continuous air barrier, verified with a blower-door test that measures leakage in CFM50. In Burbank’s climate, this single improvement often delivers more comfort and energy savings than adding insulation alone, and we offer the same expertise for Attic Air Sealing - West Hollywood.
Most residential attic air sealing jobs in Burbank are completed in one day, typically 4-8 hours depending on attic size, accessibility, and the number of fixtures and penetrations. Larger homes in the hillside neighborhoods, or jobs requiring can light replacement and duct boot resealing, may extend to a second day. We give you a specific time estimate in your written scope before work starts, and we don’t leave until the post-sealing blower-door test confirms the result.
Comprehensive attic air sealing in Burbank typically ranges from $2,200 to $3,800 for most homes, with smaller targeted jobs starting around $1,200. The final price depends on attic square footage, the number and type of penetrations, whether can lights need fire-rated covers or replacement, and whether existing insulation must be moved and replaced. We deliver a flat written price after inspection, never after work begins, and estimates are always free. Call (213) 816-1699 to schedule yours.
Yes. We’ve installed, sealed, and verified assemblies using Owens Corning, Johns Manville, and Knauf products in hundreds of Burbank-area homes, and we stock compatible sealants, tapes, and rigid board for each. We don’t claim exclusive or preferred status with any manufacturer - we specify what performs for your specific building and budget. If your home already has one of these brands installed, we can assess its condition and integrate new sealing work without material conflicts.
We answer calls 24/7 and can often dispatch same-day for urgent situations - severe water intrusion through attic bypasses, active rodent entry that compromises the air barrier, or HVAC failure traced to major duct disconnection in the attic. True “emergency” air sealing is rare; most leaks develop over years. But if your situation is urgent, call (213) 816-1699 and we’ll prioritize based on safety and comfort impact, with a live person taking the call, not voicemail.
Every attic air sealing job carries our 365-Day Done Right Promise - if it’s not done right, we make it right, period. This covers sealant failure, gasket degradation, and any leakage path we addressed that shows measurable recurrence on a follow-up blower-door test. The warranty terms are written and delivered before work starts, not mailed later or buried in fine print. We also provide the documented photo record and blower-door readings so you have baseline proof if questions arise.
Clear a path to your attic hatch and remove any stored items within 3 feet of the access point. If you have recent utility bills, have them ready - they help us correlate your energy use patterns with likely leak locations. We’ll handle covering furniture and flooring near the work area. Pets should be secured in a separate room during the blower-door test, as the pressure change can startle them. Your technician will text when en route under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
Schedule Your Attic Air Sealing Service in Burbank Today
Call (213) 816-1699 now and a live person will answer, 24/7. We’ll schedule your free inspection, deliver a written flat price before any work starts, and leave you with documented proof of the performance change you paid for - including before-and-after blower-door numbers you can share with your neighbors. No obligation, no voicemail loops, no callback windows measured in business days. Just sealed first, then insulated, with the evidence to back it up.
Written by Wes Okafor, Owner at Topside Attic Insulation Burbank, serving Burbank and the San Fernando Valley since 2016.