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.
Before
After
Before
After
Before
AfterFast, Reliable Air Duct Repair Across North Lynnwood
If you’re searching for air duct repair in North Lynnwood, WA, the most common issues we see involve disconnected joints, torn flex-duct lining, and rodent damage in vented crawl spaces. Most repair jobs in North Lynnwood run between $275 and $680 depending on how many duct runs need sealing, section replacement, or insulation repair. We serve the entire North Lynnwood area with crews who know these 1960s through 1980s tract homes well. Call (980) 447-2498 for a straight answer about your system.
Why Linden Air Duct Cleaning Is North Lynnwood’s Preferred Air Duct Repair Company
Homeowners in North Lynnwood keep calling us back for one reason: we show up with a name and a face, a written price before any work starts, and a guarantee that’s actually on paper. Since 2004, we’ve operated under the Threshold Standard, which means every technician who walks up your driveway has been background-checked, identity-verified, and photo-badged. You’ll get the tech’s name and photo before the visit, and they’ll show a photo ID badge at the door. No exceptions.
Our Air Duct Repair team works on North Lynnwood homes every week, so we’re not learning your neighborhood on the job. We know the split-levels off 44th Ave W, the ranches near Wilcox Park, and the townhome clusters around 164th St SW. We know where the rodents get in and where the moisture collects. That local knowledge means a faster diagnosis and a repair that actually holds.
Every repair comes with our 365-Day Done Right Promise. If the work isn’t right, we make it right, and that’s written on every invoice. If a covered repair fails within that year, we come back at no charge. You’ll also get a written guarantee on every repair we complete in North Lynnwood. That’s not marketing language. That’s how we’ve done it for over 20 years.
Ductwork Installation in North Lynnwood
Ductwork Installation in North Lynnwood usually means replacing sections of flex duct, rigid sheet metal, or entire trunk lines in homes where the original system has failed after 40 to 60 years of marine humidity. Many North Lynnwood homes built between 1960 and 1985 still run original or early-replacement ductwork, and once the lining deteriorates or rodents chew through, patching is often not worth the labor. A typical partial ductwork installation in North Lynnwood runs $450 – $1,100 for materials and labor, while a full system replacement can run $2,800 – $6,000 depending on square footage and crawl-space access. We quote one flat price per system before any work begins, so the number you approve is the number you pay.
Flex Duct Section Replacement
In North Lynnwood’s vented crawl spaces, flex duct absorbs moisture from the ground and surrounding air. Once the inner liner tears or the insulation gets saturated, the only real fix is cutting out the damaged run and installing new insulated flex duct with sealed, code-compliant connections. We see this most often on return runs, where negative pressure pulls humid crawl-space air through every gap.
Trunk Line and Plenum Work
Older tract homes in North Lynnwood often have sheet-metal trunk lines running under the floor joists, and disconnected joints there are a major source of musty smells and weak airflow. We reseal, reinforce, or replace trunk sections as needed, and we’ll camera the line so you can see exactly what we found before we do anything.
HVAC Duct Installation in North Lynnwood
HVAC Duct Installation in North Lynnwood covers the full job: running new supply and return ducting from the air handler to each register, properly sized and sealed for the home’s square footage and static pressure. This is the right call when a system has multiple damaged runs, widespread mold, or rodent contamination that’s too deep to remove. In North Lynnwood’s market, a full HVAC duct installation runs $3,200 – $6,800 for most single-family homes, with single-room supply runs at $350 – $700 each. You get a written price before we start, and the price doesn’t change at the end.
Supply and Return Replacement
We replace supply and return runs while taking care to size them correctly for your furnace or heat pump’s CFM requirements. Older North Lynnwood homes often have undersized returns, which makes the blower work harder and pulls crawl-space air through any leak. Fixing that is part of doing the job right, not an add-on.
Sealing and Air Balancing
After installation, we seal every joint with mastic and metal tape, then test static pressure to confirm the system is moving air the way it should. In a damp crawl space, a properly sealed duct system is the difference between clean conditioned air and a constant stream of musty crawl-space atmosphere into your living room.
Trusted Brands We Service in North Lynnwood
Our crews work with professional-grade equipment from Nikro for source-removal cleaning and HEPA filtration, and we regularly install and service air-quality products from Honeywell and Aprilaire. For North Lynnwood customers, we keep common flex-duct sizes, mastic, collars, and filter media on our trucks, which means most repairs are completed in a single visit. When a furnace filter or UV component fails, we’re not waiting on a parts shipment. We stock what these homes actually need.
Common Air Duct Repair Problems We See in North Lynnwood Homes
- Musty smell from crawl-space humidity. North Lynnwood gets 37 – 38 inches of rain a year and over 200 overcast days, so vented crawl spaces stay damp well into summer. That moisture condenses inside uninsulated metal ducts and soaks into flex-duct insulation, and the smell comes up through every register.
- Rodent damage near tree belts. Homes close to Swamp Creek and the Interurban Trail corridor sit near dense second-growth trees that harbor mice. Those mice chew through ground-level vents and flex joints, then build nests in the ductwork. Rodent dander and nesting debris then circulate through the whole system.
- Disconnected joints in 40 – 60 year old systems. Original ductwork in North Lynnwood’s 1960s – 1980s tract homes was often held together with tape that failed decades ago. When joints separate, the system pulls air from the crawl space instead of from the return registers, which means weak airflow at the vents and constant musty odor.
- Deteriorated flex-duct lining. Flex duct in a damp crawl space will break down from the inside. The plastic liner tears, the fiberglass insulation gets wet and moldy, and what looks like a small tear is actually a contaminated run that needs replacing, not patching.
Pricing for Air Duct Repair in North Lynnwood, WA
Most air duct repair jobs in North Lynnwood land between $275 and $680. A single disconnected joint or a small section of flex duct replacement might be $275 – $350. Replacing a full supply or return run runs $450 – $900. Full HVAC duct installation across a whole house runs $3,200 – $6,800. What moves the number is how many runs are damaged, whether the contamination requires HEPA source removal, and how tight the crawl-space access is. We give you one flat price per system in writing before any work begins. Call (980) 447-2498 and we’ll walk you through what your repair likely costs.
We Also Serve Cities Near North Lynnwood
Our Air Duct Repair in North Lynnwood customers often have family or rental properties nearby, so we also serve Seattle, Spokane, Tacoma, and Vancouver. If you own a home in North Lynnwood and a rental in Tacoma, one call covers both. Scheduling is coordinated from our Seattle office, but the crews working North Lynnwood live and work right here.
Serving North Lynnwood, WA - Our Local Coverage Area
We’re based in the North Lynnwood 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 North Lynnwood
Because in North Lynnwood’s climate, the smell is usually coming from the crawl space, not the duct surfaces themselves. Your vented crawl space stays humid for over 200 days a year because of the persistent overcast and rainfall, so moisture condenses inside the ducts and soaks the flex-duct insulation. A surface cleaning that doesn’t address the moisture source or replace the saturated insulation leaves the smell right where it was. That’s why we camera the ducts and inspect the crawl space before we recommend any cleaning or repair. Call (980) 447-2498 and we’ll find the actual source.
Look for droppings near your floor registers, a strong ammonia smell when the furnace kicks on, or scratching sounds in the ceiling or floor cavities. In North Lynnwood, we see the heaviest rodent activity near the tree belts along Swamp Creek and the Interurban Trail, where second-growth forest gives mice a highway right to your foundation vents. Once they’re in the ducts, you’ll often hear them in the return runs because those draw air from the crawl space. If you suspect rodents, don’t run the system until we’ve inspected it: rodent dander and nesting debris moving through the blower will spread through every room. We’ll camera the lines and show you exactly what’s in there.
Only if the moisture source and damaged ductwork are fixed first. Fogging a sanitizer into ducts without repairing the leaks and replacing contaminated insulation is a temporary masking job. In North Lynnwood’s damp crawl spaces, the biological growth comes back within a season because the humidity never goes away. What actually works here is source removal under negative pressure with HEPA filtration and agitation tools, then repair or replacement of any damaged runs. Sanitizing is a finishing step, not the fix itself. A company that sells you a fogging treatment as the whole solution is selling you a repeat visit. Call (980) 447-2498 for a straight answer on what your system actually needs.
If the ductwork is original to a 1970s North Lynnwood ranch, replacement is usually the better long-term investment. Those systems are 50-plus years old now, and after decades of marine humidity in the crawl space, the metal is often corroded, the insulation is saturated, and the connections are failing. You can repair isolated sections, but if you’re seeing multiple problems, you’ll end up paying for repairs that don’t hold. A full HVAC duct installation runs $3,200 – $6,800 for most ranches in North Lynnwood, and you’ll get one flat price in writing before we start. We’ll show you camera footage of the inside of your ducts so you can decide based on what’s actually there, not a salesman’s estimate.
North Lynnwood’s 1960s – 1980s tract homes were overwhelmingly built on vented crawl spaces, which means the ductwork lives in a damp, dark environment that never fully dries out. That changes how we repair: we don’t just patch a duct, we check the crawl-space humidity, the condition of the insulation, and whether ground-level vents are letting in rodents from the Swamp Creek and Interurban Trail tree belts. A repair that ignores the crawl space will fail. That’s why every North Lynnwood job starts with an inspection of the duct system and the space around it. Call (980) 447-2498 and we’ll come take a look.
Call Linden Air Duct Cleaning at (980) 447-2498 for a free estimate on air duct repair in North Lynnwood, WA. We answer the phone with a live person, send you the tech’s name and photo before we arrive, and put your price in writing before any work begins. That’s the Threshold Standard, and it’s how we’ve done business since 2004.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving North Lynnwood and the surrounding communities since 2004.