Fast, Reliable Duct Repair & Sealing Across Silver Lake
Most Silver Lake duct repair calls we get start the same way: a room that never heats or cools right, a sudden jump in the LADWP bill, or the sound of something scratching in the crawl space beneath a 1920s Craftsman. Duct repair and sealing in Silver Lake typically runs $280-$650 for standard jobs, and our Duct Repair & Sealing team can usually diagnose and quote same-day. We’re familiar with the hillside lots around the reservoir, the tight attic spaces in Spanish Colonials near Sunset Junction, and the open under-floor bays that make Silver Lake ductwork unlike anything you’ll find in flat-lot neighborhoods. Call (844) 685-6342 and we’ll pick up, 24 hours a day.
Why Bellows Air Duct & Vent Co. Is Silver Lake’s Preferred Duct Repair & Sealing Company
We’ve worked on duct systems in Silver Lake since 1984, long before the neighborhood became what it is today. Ray Castillo built this company on the idea that a homeowner should know the full price before a tool comes out of the truck, and that promise hasn’t changed in 42 years.
Our technicians know the difference between a Neutra-influenced flat-roof mid-century near the reservoir and a stepped-foundation Craftsman on Micheltorena Street. That matters because the ductwork problems are completely different. We’ve sealed attic ducts in 90026 homes where wildfire ash from the San Gabriel foothills had been filtering through unsealed joints for months. We’ve replaced flex-duct in crawl spaces where pack rats had done more damage than ten years of normal wear.
Every job gets camera-inspected before and after. You see what we see. No claims, no hand-waving. And our 90-Day Done Right Promise means if something isn’t right, we come back. No paperwork, no arguing. That’s how we’ve stayed in business four decades.
Calls are answered by a live person, round the clock. Not an app. Not a voicemail tree. A real person who can get a technician to your Silver Lake home when you need one.
Our Duct Repair & Sealing Services in Silver Lake
Duct Sealing
Unsealed sheet-metal joints are the single biggest efficiency killer we find in Silver Lake’s retrofitted attics. A typical duct sealing job in Silver Lake runs $280-$450 for a standard system. We use mastic sealant, not tape that dries and cracks, because Silver Lake’s Santa Ana wind cycles create pressure fluctuations that foil tape-based fixes within a season. Our Duct Repair & Sealing in Silver Lake work includes pressure-testing after sealing to verify the job.
Flex Duct Repair
Flex duct in Silver Lake hillside crawl spaces takes a beating. Santa Ana winds pressurize open under-floor bays, collapsing flex runs and creating tears where rodents enter. Flex duct repair in Silver Lake typically costs $180-$340 per run, depending on access. We recently sealed a 1940s Spanish Colonial on Micheltorena Street where Santa Ana winds had blown fine dust through every duct gap, and a pack rat had shredded the flex-duct in the crawl space. Using Rotobrush equipment and mastic sealant, we repaired the flex, sealed all metal joints, and insulated exposed runs to prevent future pest intrusion.
Metal Duct Repair
Original galvanized ductwork from mid-century retrofits is still running in some Silver Lake homes, particularly the Spanish Colonial Revival stock near Sunset Boulevard. Metal duct repair runs $320-$580 when we’re patching and sealing existing runs, or $680-$1,200 when sections need full replacement. We match gauge and fabrication style so new work doesn’t create turbulence or noise at the joint.
Duct Insulation
Exposed duct in open crawl spaces loses conditioned air fast. In Silver Lake, where summer inland heat meets winter canyon cold, uninsulated ductwork can bleed 20-30% of your heating and cooling before it reaches the register. Duct insulation runs $340-$520 for most Silver Lake homes. We use professional-grade materials rated for the temperature swings these hillside homes see.
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 carry Nikro and Honeywell components on our trucks because they’re what serious HVAC contractors specify, and they’re what hold up in Silver Lake’s conditions. Aprilaire sealing products are stocked for mastic and insulation work. We don’t order parts from a warehouse across town and make you wait. For most Silver Lake duct repair jobs, we complete the work in a single visit because we’ve seen these systems enough to know what fails and what to bring.
Common Duct Repair & Sealing Problems We See in Silver Lake Homes
- Flex-duct collapses under Santa Ana wind pressure in open crawl spaces, blocking airflow. The stepped-foundation construction that makes Silver Lake’s hillside homes distinctive also leaves under-floor bays exposed to wind. We’ve found fully collapsed flex runs that homeowners had been living with for months, assuming the problem was the HVAC unit itself.
- Unsealed sheet-metal joints in retrofitted attics allow fine ash from wildfires to infiltrate ducts. Silver Lake’s position east of the Cahuenga Pass means post-wildfire smoke events push particulates directly into any gap. After the 2025 fires in the San Gabriel foothills, we saw a spike in calls from 90026 homeowners who smelled smoke in their systems weeks after the air had cleared outside.
- Pests nest in exposed under-floor ductwork, leading to debris and holes. Pack rats, roof rats, and the occasional raccoon find Silver Lake’s open crawl spaces ideal shelter. They shred flex-duct for nesting material and leave droppings that no homeowner should be breathing.
- Disconnected runs in tight attic spaces from decades of thermal expansion and contraction. Silver Lake’s retrofitted attic ductwork was often installed with minimal support strapping. Summer attic temperatures hit 140°F, winter nights drop below 40°F, and after forty years of that cycle, joints separate.
Pricing for Duct Repair & Sealing in Silver Lake, CA
Here’s what duct repair and sealing costs in Silver Lake’s market:
| Service | Typical Range |
|---|---|
| Duct sealing (mastic, standard system) | $280-$450 |
| Flex duct repair (per run) | $180-$340 |
| Metal duct repair (patch/seal) | $320-$580 |
| Metal duct replacement (per section) | $680-$1,200 |
| Duct insulation (exposed runs) | $340-$520 |
| Full system inspection with camera | $89-$150 |
Three things move you up or down within these ranges: access difficulty (tight attic vs. open crawl space), extent of pest damage requiring cleanup, and whether we find multiple failure points that are cheaper to address together than separately. We disclose the full price before starting. The number we give on the phone is the number on the invoice. No bait coupons, no price changes at the door.
We offer $50 off any repair over $250, and a free second opinion on any written estimate you’ve already received. Senior and veteran discounts are 5%, permanent.
Call (844) 685-6342 for a free estimate. We’ll camera-inspect your system and show you exactly what needs doing.
We Also Serve Cities Near Silver Lake
Our service area includes Echo Park to the west, Koreatown to the south, Hollywood to the north, and the broader Los Angeles basin. Hillside ductwork expertise isn’t common, and we’ve built our reputation on the technical jobs that flat-lot contractors walk away from. If you’re in Silver Lake or nearby, the same team that handles Micheltorena Street crawl spaces can be at your door.
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 - Duct Repair & Sealing in Silver Lake
Your home’s stepped-foundation hillside construction left under-floor bays open to outdoor air, and the original central air retrofit was done with minimal support strapping in tight spaces. Over decades, thermal expansion, Santa Ana wind pressure, and pest activity loosen joints and collapse flex runs. We see this in nearly every pre-1960 Silver Lake home we inspect. Call (844) 685-6342 and we’ll camera-inspect to show you exactly what’s loose.
Every two to three years for Silver Lake homes with open crawl spaces or unsealed attic ductwork. After major Santa Ana events or nearby wildfires, an inspection is worth doing even if you’re not noticing airflow problems yet. Fine dust and ash infiltration often precedes obvious symptoms by months. We offer an $89 seasonal tune-up that includes visual duct assessment. Call (844) 685-6342 to schedule.
Yes. Our technicians carry compact Rotobrush equipment specifically for Silver Lake’s restricted attic cavities, and we’re experienced working in the 18-inch clearance spaces typical of 1920s Craftsman retrofits. Most attic duct repairs in Silver Lake are completed in a single visit. Call (844) 685-6342 for a free estimate.
We use Honeywell and Aprilaire sealing products for mastic and insulation work, and Nikro equipment for cleaning and preparation. These are the brands serious HVAC contractors specify, and they’re stocked on our trucks for same-day Silver Lake service. Call (844) 685-6342 to discuss what your specific system needs.
Usually yes, if the metal ductwork is structurally sound. Sealing unsealed joints in a retrofitted Silver Lake attic typically pays for itself in 12-24 months through reduced energy bills, and it immediately improves air quality by blocking dust and ash infiltration. If the ductwork is corroded through or improperly sized, we’ll tell you straight and give you replacement numbers too. No pressure either way. Call (844) 685-6342 for an honest assessment.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Silver Lake since 1984.