Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable Duct Sealing Across Silver Lake
Duct sealing in Silver Lake typically runs $450 – $900 for a typical single-family home, depending on how many runs need repair and how much of the system is accessible. That’s the honest range we quote before any work starts, and it’s a written price that does not move at the door. If your hillside bungalow keeps pulling dust from the crawl space every time the Santa Ana winds kick up, sealing is usually the fix, not another cleaning. Call Hollis Air Duct Pasadena at (626) 469-5477 and we’ll send a background-checked, uniformed technician to your Silver Lake home to trace the actual leaks.
Why Hollis Air Duct Pasadena Is Silver Lake’s Preferred Duct Sealing Company
Silver Lake homeowners call us because we understand what lives inside the walls of a 1920s hillside bungalow. Ducts here were often retrofitted for central air decades ago, run through crawl spaces and converted attics that shift with the hillside. Our crews have traced leaking returns off Silver Lake Boulevard, sealed crushed flex runs under homes near the reservoir, and pulled construction dust out of systems in mid-century apartment buildings that have seen three renovations in twenty years. We do the job by the book under The Garrison Standard: arrive inside the quoted window, put the price in writing before touching anything, complete the work, and leave the site clean.
Our Duct Sealing team runs professional-grade equipment from Rotobrush and Nikro, the same negative-air machines commercial crews use, plus filtration products from Honeywell and Aprilaire. Every job is covered by the 365-Day Done Right Promise. If the seal fails within a year, we come back and make it right at no charge. That’s a written guarantee, not a verbal one, and it includes the return visit.
Styles & brands we work with
Air Duct Sealing in Silver Lake
Air Duct Sealing in Silver Lake means finding the gaps, cracks, and separated joints in your duct runs and closing them with UL-tested mastic so the air you paid to condition actually reaches the rooms you live in. In this neighborhood, that work is different than in a flat, newer suburb. The hillside shifts, the old seismic retrofit patches crack, and the runs that were never built for central air start pulling dust and crawl-space air into the system. Our first step is almost always a camera inspection to see what the last three decades of patches actually look like.
A typical whole-system seal in Silver Lake runs $450 – $700 for an average 1,500-square-foot home. If the issue is a single separated return or a crushed flex run under a converted attic, you’re looking at $250 – $400. Housing stock here is predominantly 1920s – 1960s bungalows and small multi-family buildings with narrow runs and minimal access points. That means the work is methodical, not a quick spray-and-go.
Return and Supply Run Tracing
We trace the full path of both return and supply runs before we seal anything. In a 1930s bungalow off Silver Lake Boulevard, our crew found the return duct had pulled apart at a crawl-space joint, pulling dusty air straight from the hillside. After a camera inspection confirmed the separation, we used negative pressure and HEPA filtration to capture the debris, then sealed the run with UL-tested mastic and reinforced the hangers. The owner said the musty smell vanished the next day.
Hillside-Side Joint Sealing
The joints on the hillside side of your home are the ones that fail first. Seismic settling and years of Santa Ana wind-driven silt work those connections loose, and sealing only the accessible registers leaves those gaps wide open. We access what we can from crawl spaces and attic hatches without touching your original plaster.
Duct Sealing Services in Silver Lake
Duct Sealing Services in Silver Lake include fixing separated returns, patching cracked mastic from old retrofits, replacing crushed flex runs, and sealing the connections where duct meets register boot. The goal is simple: stop the system from pulling dusty air from places you can’t see, and stop the air you’re paying to heat or cool from leaking into the crawl space. Silver Lake’s mild Mediterranean climate means systems here run year-round for heating and cooling, which means leaks bleed money every month, not just in one season.
Most Silver Lake jobs run $450 – $900 as a whole-system price. We seal with UL-tested mastic and aluminum tape, not hardware-store duct tape that dries and peels in two seasons. After the seal is done, we run the blower and check static pressure to confirm the air is moving where it should.
Whole-System Sealing After a Cleaning
If you recently had your ducts cleaned and the dust came back within a month, sealing is the step that was skipped. A cleaning removes what’s inside the runs. Sealing stops new debris from being pulled in at the joints. In Silver Lake, where dry summers and open windows introduce fine dust constantly, both matter. We often do the two together, but we’ll price them separately in writing so you know exactly what you’re paying for.
Renovation Dust and Sealing
Silver Lake condos and bungalows see constant remodeling, which means drywall dust and construction debris settle into open duct runs during the work. Sealing the runs after a renovation keeps that dust from circulating through the living space for months afterward. The sealing work itself is straightforward, but accessing the runs in a converted attic or crawl space takes time and care.
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.
Trusted Brands We Service in Silver Lake
We stock mastic, tapes, and replacement flex sections compatible with the duct systems you already have, and our equipment roster includes Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell and Aprilaire. That means we can complete most Silver Lake duct sealing jobs same-day without waiting on parts from a distributor across town. If your system has an Aprilaire filter housing that needs reseating or a Honeywell damper that’s leaking at the seam, we handle it on the same visit.
Common Duct Sealing Problems We See in Silver Lake Homes
- Old mastic and duct tape from previous seismic retrofits crack and peel. Silver Lake homes built into the hillsides have been patched repeatedly over the decades, often with mismatched materials. Those patches fail at the joints, leaving gaps that suck in crawl-space dust during Santa Ana winds.
- Converted attic and crawl-space runs settle against beams and crush flexible ducts. The hillside shifts over time, and runs that once had clearance end up pinched or split. That creates hidden leaks that bypass your filter entirely.
- Sealing only the accessible registers leaves hillside-side joints open. The joints on the slope side of the house are the hardest to reach, but they’re also the ones pulling in the most outside air. A proper seal means tracing those runs, not just caulking what’s visible.
- High dog ownership means pet dander coats the inside of duct runs. Silver Lake has one of the highest dog-ownership rates in Los Angeles. Once sealing stops outside air from entering at the joints, the dander that’s already inside needs to be removed with negative-air capture before the system is sealed.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in Silver Lake, CA
Here’s what you can expect to pay for duct sealing in Silver Lake. A single separated return or crushed flex run repair runs $250 – $400. A whole-system seal on a typical 1,200 – 1,800 square foot bungalow runs $450 – $700. A larger home or a system with multiple failed retrofit patches runs $700 – $900. The price is written down before any work starts, and it does not change at the door. What affects the number is access: how many crawl-space entries we have, whether the attic is converted, and how many runs need tracing. Call (626) 469-5477 for a free estimate and we’ll give you a hard number for your Silver Lake home.
We Also Serve Cities Near Silver Lake
Our crews regularly work in Silver Lake and the surrounding neighborhoods, including Pasadena, Glendale, Downtown Los Angeles, and Burbank. If you’re in one of those areas, call (626) 469-5477 and we’ll schedule a written-price estimate the same way we do for Silver Lake homes.
Serving Silver Lake, CA - Our Local Coverage Area
We’re based in the Silver Lake area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Silver Lake
Yes, in most cases that’s exactly what it fixes. The Santa Ana winds push fine dust and silt against your home’s exterior, and if the duct joints on the hillside side of the house are open, that dust gets pulled straight into the return. Sealing those joints stops the intake at the source. If the dust is also coming through window seals and door gaps, that’s a separate issue, but the duct leaks are usually the bigger contributor in Silver Lake’s older hillside homes. Call (626) 469-5477 and we’ll run a camera inspection to confirm where the air is entering.
We access the ducts through the crawl space, attic hatch, or existing register openings. We do not open walls or remove plaster unless you’ve already planned a remodel and want us to work alongside it. Most 1920s bungalows in Silver Lake have crawl spaces on the downhill side and attic access on the uphill side, which is enough to reach the joints that typically fail. If a run is fully enclosed and inaccessible, we’ll show you the camera footage and give you an honest assessment of what can and can’t be sealed without demolition.
Yes, if the musty smell comes from crawl-space or hillside air being pulled into the system through separated joints. Cleaning removes the contaminants inside the runs, but if there’s a gap at a return duct joint, the system starts pulling that same musty air back in within days. Our crews handle this sequence in Silver Lake regularly: clean first to clear what’s inside, then seal to stop the source. The 365-Day Done Right Promise covers the seal, so if the issue returns within a year, we come back at no charge. Call (626) 469-5477 for an exact quote.
Yes, and it’s one of the most common calls we get from condo owners in Silver Lake. During a renovation, drywall dust and construction debris settle into open duct runs, especially in buildings from the 1940s and 1950s where the runs were never sealed properly in the first place. Sealing the runs after the renovation closes off those entry points so the dust stops recirculating. The seal also prevents future renovation dust from getting pulled in if a neighbor’s unit is being remodeled. Call (626) 469-5477 and we’ll inspect your system with a camera before quoting.
You can seal only the return ducts if that’s where the leaks are. In Silver Lake hillside homes, the return side is often the bigger problem because it’s under negative pressure and pulls air from the crawl space and hillside. We’ll show you the camera footage of the leaks we find and give you a written price for sealing just the returns, just the supplies, or both. There’s no package you have to buy. The price is per job, written before we start, and covered by the 365-Day Done Right Promise. Call (626) 469-5477 for a free estimate.
Contact Hollis Air Duct Pasadena for Duct Sealing in Silver Lake
If your Silver Lake home has dust that returns days after a cleaning, musty air from the crawl space, or old seismic patches that have peeled and failed, call us at (626) 469-5477. We’ll schedule a camera inspection, trace the runs, and give you a written price before any work starts. The estimate is free, the price is fixed, and the work is guaranteed in writing for a full year. Dispatch and scheduling are coordinated from our Los Angeles office, and crews serve Silver Lake locally.
Written by Roy Castellanos, Owner at Hollis Air Duct Pasadena, serving Silver Lake since 2004.