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 Maltby
If your ductwork is leaking, torn, or growing mold in a damp Maltby crawl space, you need a repair, not another cleaning. Air Duct Repair on a typical Maltby home runs $450 – $1,800 depending on whether we’re sealing a small rodent breach or replacing a collapsed flex run. We’re the team that actually understands why ductwork fails faster here than in Bothell or Woodinville. Call (980) 447-2498 and we’ll give you a written price before any work starts.
Why Linden Air Duct Cleaning Is Maltby’s Preferred Air Duct Repair Company
We’ve been crawling under Maltby homes since 2004, long enough to know that a duct problem here is rarely just a duct problem. It’s a crawl-space moisture problem. A rodent problem. A cedar pollen problem. Marcus Veale, who leads our crew, has seen the same pattern hundreds of times: a homeowner notices a musty smell, one bedroom runs cold, and the energy bill creeps up. The cause is usually a breached flex duct in a crawl space that hasn’t dried out since October. When you call us for Air Duct Repair in Maltby, you don’t get a technician who’s never seen a Douglas fir. You get someone who knows what those needles do to a supply run.
Before your tech arrives, you’ll receive their name and photo. When they knock, they’ll show a photo ID badge. Every repair carries a written 365-Day Done Right Promise: if the repair fails within one year, we come back at no charge. That’s not a marketing line. It’s in writing on every single job.
HVAC Duct Installation in Maltby
HVAC Duct Installation in Maltby usually means one of two things: running new flex duct through a crawl space under a 1990s subdivision home near SR-522, or adding a supply run to an addition on an older rural property along Paradise Lake Road. The work involves sizing the duct to the blower, sealing every joint with mastic (not tape, which fails in damp air), and insulating the run to prevent condensation. A single new supply run in Maltby typically costs $380 – $650; a full trunk-line replacement in a larger crawl space runs $1,200 – $2,400.
New Construction and Remodels
If you’re building a shop or finishing a basement, the ductwork has to be installed before drywall goes up. We coordinate with your contractor to get supply and return runs in place, sealed, and tested. A nail through a flex duct during framing is a common call we get six months after move-in, and it’s always cheaper to catch before insulation hides it.
Replacing Failed Flex Ducts
Flex duct in a Maltby crawl space has a working life of roughly 15 – 20 years before the inner liner separates or the outer jacket tears. When that happens, the system is blowing conditioned air into the crawl space instead of your living room. We remove the old run, check the remaining duct for similar damage, and install properly supported flex duct with a sealed, insulated connection at both ends.
Air Duct Replacement in Maltby
Air Duct Replacement in Maltby is what happens when cleaning won’t fix the problem. If the insulation inside your hard-pipe supply run is saturated with moisture, or the flex duct is full of rodent nesting material, no amount of negative-pressure extraction will make it right. A full replacement of all accessible ductwork in a typical Maltby ranch or 2000s-era two-story runs $2,800 – $6,500, with the final number driven by crawl-space access, linear footage, and how much of the old duct is hard pipe versus flex.
Mold-Damaged Ductwork
In Maltby’s wet foothill climate, condensation inside crawl-space duct runs isn’t a winter event. It’s constant. Once mold penetrates the fiberglass liner, it can’t be scrubbed out. We replace the affected sections and address the moisture source, usually by recommending a crawl-space vapor barrier upgrade alongside the duct work.
Rodent-Damaged Systems
When rodents chew through flex duct to nest, the damage is rarely isolated to one spot. We camera-inspect the full run, because where there’s one breach, there are usually two or three. Replacing the damaged sections and sealing the entry point keeps the system from becoming a highway for crawl-space air and pest debris.
Trusted Brands We Service in Maltby
Most Maltby systems we work on use flex duct from a handful of manufacturers, and we stock replacement materials that match what’s already under your house. We run Rotobrush equipment for source-removal cleaning and use negative-pressure extraction to keep debris out of your living space. When we replace filtration or sealing components, we work with trusted product lines including Aprilaire and Guardsman. If you have a specific filter housing or air purification unit already installed, tell us when you call and we’ll confirm we have compatible parts on the truck before heading out to Maltby. That saves you a second trip charge and gets the repair done in one visit.
Common Air Duct Repair Problems We See in Maltby Homes
- Rodent breaches in flex duct: Rats and mice move into crawl spaces every fall, and flex duct is easy to chew through. We regularly find 3 – 6 inch holes in supply runs, which means your furnace is heating the crawl space instead of your house. The fix is patching or replacing the torn section, then sealing the entry point.
- Cedar and fir needle loading: Maltby’s dense tree canopy sheds constantly, and those fine particulates work their way into supply runs through gaps and return leaks. They pile up on the blower motor, reducing efficiency, and they clog registers. Cleaning alone won’t help if the return path has gaps that keep pulling debris in.
- Condensation-saturated insulation: Crawl-space duct runs in Maltby sit in humid air all year. Over time, the outer insulation gets wet, compresses, and loses its R-value. Cold air moving through the duct condenses on the outside, and the resulting moisture feeds mold. Replacement is the only real fix.
- Sagging and separated joints: Poorly supported flex duct works loose at the connections to boots and plenums. We see this a lot in older farmhouses along 156th Street SE where duct was installed decades ago with nothing but foil tape. The joints leak, the airflow drops, and the system runs longer to hit the thermostat setting. We re-support, re-seal with mastic, and restore the pressure balance.
Pricing for Air Duct Repair in Maltby, WA
Here’s what you can expect to pay for common repairs in Maltby. Sealing a single rodent breach with a proper mastic patch runs $180 – $350. Replacing a 10 – 15 foot flex run in a crawl space costs $450 – $900, including new duct, insulation, support straps, and sealed connections. A full air duct replacement for a typical 2,000 square foot Maltby home ranges from $2,800 to $6,500. What changes the price is crawl-space access (tight spaces take longer), how many runs are damaged, and whether mold remediation is required. We give you a written price before any work begins. No per-vent pricing. No surprise invoice at the end. Call (980) 447-2498 for a free estimate.
We Also Serve Cities Near Maltby
While this page covers Maltby specifically, our crews also handle air duct repair for homeowners in Seattle, Spokane, Tacoma, and Vancouver. If you’re just outside the Maltby area or have a property in more than one place, give us a call and we’ll confirm scheduling. You’ll get the same written price guarantee no matter which zip code we’re working in.
Serving Maltby, WA - Our Local Coverage Area
We’re based in the Maltby 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 Maltby
Every 2 – 3 years, not the 5 – 7 year interval you’ll hear for urban suburbs. Maltby’s dense fir and cedar canopy produces constant fine particulate loading, and crawl-space duct runs are exposed to moisture year-round. By year three, most systems here show visible biofilm and needle debris accumulation. Call (980) 447-2498 and we’ll assess what your system actually needs.
Uneven room temperatures, a musty or ammonia smell from the registers, rustling sounds in the walls or ceiling, and a sudden spike in dust are all red flags. If you see droppings near the furnace or find nest material in a floor register, the damage is usually already done. We’ll camera-inspect the full run and show you exactly what we found before quoting a repair.
It depends on what the camera inspection shows. Ducts with fine debris and light dust can be cleaned with negative-pressure source removal. Ducts with mold inside the fiberglass liner, saturated insulation, or rodent damage need replacement. The camera tells us, and we’ll show you the footage. Call (980) 447-2498 to schedule an inspection.
Maltby sits in the Snohomish County foothills, where rainfall totals run higher and tree canopy keeps surfaces from drying out. The result is season-long condensation on cold duct surfaces in unconditioned crawl spaces. That’s why we recommend crawl-space moisture control alongside any duct repair here. It’s the only way a repair stays a repair.
Yes. Many Maltby properties have detached shops, studios, or in-law units with their own mini-split or forced-air runs, and those systems get the same debris, moisture, and rodent exposure. We clean and repair outbuilding duct systems as part of the same visit when possible, saving you the cost of a second dispatch. Call (980) 447-2498 to include outbuildings in your estimate.
Call Linden Air Duct Cleaning for Air Duct Repair in Maltby
You’ll get a real person on the phone, 24/7. We’ll schedule a visit, send your tech’s name and photo before they arrive, and put a written price in front of you before any work starts. Every repair is covered by our 365-Day Done Right Promise: if it fails within a year, we return and fix it free. That’s the whole deal. Call (980) 447-2498 now and get your Maltby ductwork repaired right.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Maltby and surrounding Snohomish County communities since 2004.