Whole-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.
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AfterFast, Reliable Air Duct Repair Across San Bruno
Air duct repair in San Bruno usually means one of three things: a disconnected run in a crawlspace, crushed return duct in a ceiling chase, or fiberglass duct board that has started shedding into the living space. Most repairs in San Bruno run between $275 and $1,450 depending on what we find once we open the access points. We schedule San Bruno calls five days a week and always send a tech whose name and photo you’ll have before he rings the bell. Call (980) 447-2498 to talk through what you’re seeing, or read on for what we find most often in this city.
Why Linden Air Duct Cleaning Is San Bruno’s Preferred Air Duct Repair Company
San Bruno homeowners deal with a set of duct problems you won’t find in Burlingame or Redwood City. The wind patterns here, the fog, the age of the housing stock, and the airplane traffic all stack up in a way that punishes older ductwork. We’ve been working these streets long enough to know which neighborhoods tend to have original 1950s sheet metal, which blocks near the El Camino Real corridor still have fiberglass duct board, and which Crestmoor homes were rebuilt with modern systems after the 2010 pipeline fire.
Our Air Duct Repair team carries camera inspection gear on every San Bruno call because so many of the failures here are hidden inside walls, ceilings, and crawlspaces. We do not guess. We put a camera to the run, find the disconnect or the delamination, and show you the footage before we quote a fix. Every repair gets a written price before any work starts, and every repair is covered by a written guarantee with a free second visit if the repair fails within 365 days.
Marcus Veale, who leads our crews, built the San Bruno service around one principle: the homeowner should know exactly who is coming, exactly what it will cost, and exactly what happens if the work does not hold. That is the Threshold Verified standard we have worked to since 2004.
Ductwork Installation in San Bruno
Ductwork installation in San Bruno comes up when a section of existing duct has failed beyond repair: crushed beyond reshaping, rusted through, or so badly disconnected that patching would leave the system leaking more than it delivers. In older tract homes near San Mateo Avenue and San Bruno Avenue, we regularly replace entire return or supply branches rather than fighting fifty-year-old metal into submission.
Full Runs vs. Section Replacement
A full ductwork installation in San Bruno is uncommon but sometimes necessary, especially when original fiberglass duct board has delaminated throughout the system. Section replacement is far more typical: one damaged return run, one supply branch that has collapsed under insulation weight. For a section replacement in San Bruno, expect $380 to $950 depending on access and length.
What a New Run Costs Here
Complete ductwork installation for a typical 1,200 to 1,800 square foot San Bruno home runs $3,200 to $6,800. That is honest money, and it is priced before we start. We will walk you through what actually needs replacing versus what can be sealed and left alone.
HVAC Duct Installation in San Bruno
HVAC duct installation in San Bruno usually follows a system replacement or a major repair where the original duct configuration no longer matches the equipment. If an older home near SFO got a new furnace ten years ago but kept its 1950s duct runs, the mismatch often shows up as uneven heating, whistling registers, and a system that short-cycles. That is when HVAC duct installation, not just repair, becomes the actual fix.
New Equipment on Old Ducts
The San Bruno Gap puts enough strain on building envelopes that a newer blower fighting old, leaky ductwork pulls damp marine-layer air into the return side every time it cycles. Reworking the return side for correct airflow and sealing the supply runs often solves what felt like a furnace problem. Plan for $1,800 to $4,900 when we are reconfiguring runs around new equipment.
When the Plenum and Boots Go In
HVAC duct installation also covers plenum connections, register boots, and transition fittings. A cracked plenum or a boot that has pulled away from the floor register lets conditioned air dump into the crawlspace or wall cavity instead of the room. Replacing boots and resealing the plenum in a San Bruno home typically lands between $320 and $780 per location, done in a single visit.
Trusted Brands We Service in San Bruno
We run Rotobrush and Nikro equipment on most San Bruno repair jobs, because the combination handles both source removal and the fine-particulate work that Gap conditions demand. When San Bruno homeowners need air-quality components on the repair side, we supply and install product from Aprilaire, Abatement Technologies, and Guardsman. We do not tend toward budget filters here; the SFO particulate load and the fog-driven mold risk make real filtration a functional need, not an upsell. Most repair visits take a single morning to early afternoon.
Common Air Duct Repair Problems We See in San Bruno Homes
- Delaminated fiberglass duct board. Original 1950s duct board near the El Camino Real corridor breaks down under decades of wind-driven pressurization. The board delaminates and sheds fibers into supply air, and the only correct fix is removal and replacement.
- Disconnected or crushed return runs. Crawlspace returns in post-WWII tract homes get stepped on, pulled apart by foundation settling, or crushed by stored belongings. A detached return pulls attic and crawlspace air into the system, including SFO exhaust particulates.
- Chronically damp duct interiors. The heavy marine layer that sits on San Bruno keeps duct humidity high for weeks at a time. Mold and mildew grow inside insulated duct walls, and homeowners usually read the smell as ordinary dust.
- Unsealed joints throughout the system. Metal duct from the 1950s and 1960s was assembled with slip joints and minimal fastening. After sixty years of Gap wind cycles, those joints leak on every run. Most San Bruno systems lose 15 to 30 percent of conditioned air before it reaches a register.
Pricing for Air Duct Repair in San Bruno, CA
Air duct repair in San Bruno generally runs $275 to $1,450. A simple disconnect reseal with mastic and tape lands near the bottom. A crushed return run that needs a section of new duct in a tight hall ceiling runs toward the top. The big number: complete ductwork or HVAC duct installation for a typical San Bruno home runs $3,200 to $6,800. You will get a written price before anything gets touched, and the quote includes the repair guarantee. Call (980) 447-2498 and we will schedule a look at what you are dealing with. Estimates are free.
We Also Serve Cities Near San Bruno
Most of our San Bruno work sits in neighborhoods between Sneath Lane, San Bruno Avenue, and El Camino Real, but we also run calls up to Millbrae, across to South San Francisco and Brisbane, and over the hill to Pacifica. If you are on the outer edge of San Bruno or in one of the nearby towns, call us and we will tell you straight whether we are the right fit for your location.
Serving San Bruno, CA - Our Local Coverage Area
We’re based in the San Bruno 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 Air Duct Repair in San Bruno
Because the fog cycle is not just humid air moving through your house; it is actively feeding microbial growth inside your ductwork. The San Bruno Gap holds a heavy marine layer over the city for days or weeks at a time, and that damp Pacific air cycles through your return ducts on every furnace or AC cycle. Homes near the pass see duct humidity levels that stay elevated long enough for mold and mildew to take hold in the interior lining. The smell is coming from your ducts, not your closets or crawlspace alone. A camera inspection will usually find visible growth inside the return runs, and the fix is source removal, then sealing the leaks that keep pulling damp air back in. Call (980) 447-2498 and we will find exactly where it is coming from.
Yes, and the difference comes down to two things: original duct materials and Gap-driven pressure cycling. The 1945 to 1965 tract homes along the El Camino Real corridor were built with fiberglass duct board or light-gauge sheet metal assembled with slip joints. Both materials degrade under the relentless wind pressurization the Gap pushes through the pass on every storm. Newer homes, including much of the Crestmoor neighborhood rebuilt after 2010, use sealed flexible or rigid duct with better connections. An older system near El Camino Real might need sealing and partial replacement every decade, while a properly sealed newer system can go twenty years with only filter changes. The repair visit is almost always a sealing job with a section replacement rather than a full tear-out.
Almost always yes. A crushed return in a hall ceiling or a disconnected branch in a crawlspace is a localized failure, not a reason to replace the entire system. We cut out the damaged section, install a new matching run, and seal both connections with mastic and UL-listed tape. The rest of the system stays untouched. Where this gets more involved in San Bruno is when the damage sits behind original construction with limited access, like a return chase running through a finished ceiling. Even then, we are usually in and out same day for $380 to $950. A full replacement only makes sense when the original duct material itself has failed throughout, which we will show you on camera before recommending.
SFO sits directly east and slightly north of most San Bruno neighborhoods, and arriving aircraft pass low enough that exhaust particulates settle over the city daily. Those particulates get drawn into your home through foundation vents, crawlspace leaks, and any return duct that is not perfectly sealed. Once inside the return side, they coat the duct interior and the blower assembly. Homes with disconnected or leaking returns pull in significantly more of this material than sealed systems. San Bruno homes that are not actively sealing their ductwork are filtering SFO air through their HVAC systems every single day. A sealed return side with proper filtration is the functional fix we recommend most often here.
Your tech arrives in a marked vehicle, shows a photo ID badge at the door, and walks the system with you before touching anything. We check registers, visually inspect accessible runs, then run a camera from the air handler or a register boot to find the actual failure. If we find a disconnect, a crushed section, or delaminating duct board, we show you the footage and give you a written price for the repair. Once you approve, we seal off the work area, run HEPA filtration during any cutting or removal, and complete the repair with mastic-sealed connections. The job is photographed before and after, and you get the written guarantee with the invoice. On a 1952 tract home off San Mateo Avenue, our tech found a crushed return run in the hall ceiling plus original fiberglass duct board shedding at the supply registers. We ran camera inspection from the air handler, then sealed the disconnected joints under negative pressure with HEPA filtration running the whole time. The homeowner said the musty smell that returned with every fog cycle was gone within a week. That is what a proper repair visit looks like in San Bruno.
Get Your San Bruno Duct Repair Priced in Writing
If your registers are wheezing, your energy bill has climbed without an obvious reason, or you get that musty smell every time the fog sits on the hill, the problem is probably in the ductwork. We will find it, show you the footage, and put a repair price in writing before any work begins. The repair is covered by the 365-Day Done Right Promise, with a free second visit if the fix does not hold. Call (980) 447-2498 to speak with a live person about scheduling a San Bruno duct repair visit.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving San Bruno since 2004.