Fast, Reliable Duct Repair & Sealing Across Camas
Duct repair and sealing in Camas typically costs $280–$680 for most residential jobs, with same-day diagnostics available throughout the 98607 area. We’re usually on-site in Camas within 45 minutes of your call, whether you’re in a 1990s subdivision off Northeast 192nd Avenue or a century-old bungalow near downtown. Call (877) 335-1974 for a free estimate.

Our Duct Repair & Sealing team knows Camas’s dual housing stock inside and out — from the compact craftsman homes built for mill workers to the sprawling two-story layouts in Grass Valley and Prune Hill. Richard Anderson, our Owner and Lead Technician, has spent 11 years diagnosing duct failures specific to this city’s unusual contamination profile. That grayish film on your registers? The faint sulfur trace in your HVAC air? We’ve seen it hundreds of times. It’s not standard dust, and treating it like standard dust is why some Camas homeowners call us after another company “cleaned” their ducts and the smell came back within the month.
Why Landmark Air Duct Cleaning Service Washington Is Camas’s Preferred Duct Repair & Sealing Company
We’ve earned 732 verified reviews averaging 4.9 stars — and a significant share of those come from Camas homeowners who found us after realizing their duct problems weren’t generic. Richard Anderson personally runs every job as Lead Technician, so the person quoting your repair is the same one sealing your joints. No rotating crews, no handoffs.
Our response time to Camas averages under 45 minutes because we route directly from our Seattle-area base without the scheduling delays common to multi-trade HVAC companies juggling furnace installs and refrigeration calls. We carry Rotobrush and Nikro professional-grade equipment plus mastic sealant and insulation stock sized for both the tight crawlspaces of downtown-adjacent bungalows and the extended duct runs of newer Prune Hill homes.
Camas’s location at the western mouth of the Columbia River Gorge creates wind-loading and humidity conditions that most Clark County duct techs — trained on Vancouver’s milder, more sheltered climate — simply don’t account for. We do. The Gorge winds push mill particulates and outdoor contaminants into your ductwork with pressure that standard sealing methods can’t withstand. Our mastic applications and mechanical fastening are specified for exactly that stress.
Our Duct Repair & Sealing Services in Camas
Duct Sealing with Mastic Sealant
Mastic sealant is our primary repair method for Camas homes because it outperforms foil tape in the humidity and wind pressure this city faces. A typical mastic sealing job in Camas runs $280–$450 for a single-zone system, $480–$680 for multi-zone homes in Grass Valley or Prune Hill with longer trunk lines. We brush-apply mastic to every joint and seam, then mechanically reinforce where Gorge wind infiltration is heaviest. On west-side homes downwind of the WestRock mill, we also seal register boots more aggressively — that sulfurous residue indicates air is moving through gaps that tape alone won’t close.
Flex Duct Repair
Flex duct runs in 1990s and 2000s Camas townhomes and subdivisions fail at support points, crushes, and rodent damage in crawlspaces. Repair runs $180–$320 per damaged section, including new insulated flex, proper strapping, and sealant. Long duct runs in two-story Camas homes create static pressure problems that crush flex over time — we resize and support to prevent repeat failure. If your flex is saturated with the grayish-tan mill residue we find near the Columbia River, replacement beats cleaning every time.
Metal Duct Repair
Older Camas homes — the pre-1950s stock near downtown and the West Camas neighborhood — often have galvanized steel trunk lines that corrode, separate at seams, or were never properly sealed originally. Metal duct repair in Camas runs $340–$580 depending on access and extent. We cut and patch corroded sections, re-seam separated runs with mastic and fiberglass mesh, and insulate where unconditioned crawlspace or attic exposure has stripped original wrapping. The sulfurous residue from mill emissions accelerates corrosion on uncoated steel — another reason Camas metal ductwork needs specialist attention, not a generalist’s glance.
Duct Insulation
Uninsulated or degraded duct insulation in Camas crawlspaces wastes energy and creates condensation points where Gorge-driven humidity breeds mold. Duct insulation work runs $380–$620 for typical residential systems, using foil-faced fiberglass or closed-cell wrap rated for wet-location exposure. In east Camas neighborhoods with older crawlspace-fed systems, we frequently find insulation soaked through from ground moisture and Gorge wind infiltration combined — the fix requires sealing first, then insulating, or you’re trapping moisture against the duct.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Camas
We stock repair materials and air quality components from Honeywell, Aprilaire, and Abatement Technologies — the same brands used by commercial restoration contractors, not consumer-grade alternatives. For Camas homeowners, that means faster turnaround: we don’t order parts, we install from stock. Honeywell media filters and Aprilaire humidifier components integrate directly with sealed duct systems to maintain the air quality gains your repair achieves. Abatement Technologies HEPA filtration accessories extend protection in west-side homes managing ongoing mill-particulate exposure. We match the component to your system’s age, configuration, and the specific contamination profile your Camas home faces.

Common Duct Repair & Sealing Problems We See in Camas Homes
- Mill-derived sulfurous residue misidentified as standard dust. Vancouver-trained techs unfamiliar with Camas’s WestRock emissions often vacuum and call it clean, leaving active contamination and persistent odors. We identify the grayish-tan, faintly sulfur-scented deposit by sight and smell, then seal the infiltration points that let it enter.
- Foil tape failure under Gorge wind pressure. Standard off-the-shelf tape degrades in months when Camas’s fall and winter east winds pressurize duct seams from outside. We see this repeatedly in homes near Lacamas Lake and along Northeast 3rd Avenue — tape curls, gaps reopen, contamination returns.
- Crawlspace mold in older bungalow systems. East Camas neighborhoods with 1920s–1940s homes frequently have flex or metal ducts running through unconditioned crawlspaces where Gorge humidity and ground moisture combine. Sealing the main trunk while ignoring these feeder lines leaves active mold colonies pumping spores into every room.
- Oversized two-story duct runs with poor static balance. Newer Camas subdivisions from the 2000s and 2010s feature long duct runs to second-floor zones that weren’t properly engineered. Flex crushes, joints separate under pressure, and rooms at duct end never receive designed airflow. We resize, support, and seal for actual performance.
Pricing for Duct Repair & Sealing in Camas, WA
| Service | Typical Range in Camas |
|---|---|
| Mastic duct sealing (single zone) | $280–$450 |
| Mastic duct sealing (multi-zone) | $480–$680 |
| Flex duct repair/replacement (per section) | $180–$320 |
| Metal duct repair (patch, seam, corrosion) | $340–$580 |
| Duct insulation (full system) | $380–$620 |
| Diagnostic/inspection with written estimate | Free |
What moves you within these ranges? Access difficulty — tight Camas crawlspaces take longer. Contamination severity — heavy mill residue requires pre-cleaning before sealant will bond. System size — Prune Hill’s 3,500-square-foot homes need more material than downtown bungalows. And whether we’re repairing isolated damage or addressing whole-system failure from years of neglect.
We don’t quote over the phone without seeing your system. Every estimate is free, in-person, and written. Call (877) 335-1974 to schedule.
We Also Serve Cities Near Camas
Our service radius covers Clark County and across the Columbia River into Oregon, including Fairview, Washougal, Mill Plain, and Troutdale. Each city gets the same owner-led service, though Camas’s mill-contamination profile and Gorge wind exposure remain unique to this market. If you’re in a bordering community with similar duct concerns, we apply the same diagnostic rigor — just without the sulfurous signature that defines west-side Camas work.
Serving Camas, WA — Our Local Coverage Area
We’re based in the Camas 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 Camas
Yes — the mill’s sulfur-based emissions and fine pulp particulates create a unique contamination profile found nowhere else in Clark County. West-side Camas neighborhoods downwind of the stack accumulate grayish-tan, faintly sulfurous residue inside ductwork that accelerates corrosion, degrades sealants, and indicates active air infiltration through unsealed joints. Standard cleaning without sealing leaves the entry points open, so the problem returns. We seal specifically against this infiltration pattern. Call (877) 335-1974 for an inspection if you notice unusual odors or register staining.
Yes, flex duct repair is one of our most common calls in 1990s Camas subdivisions and townhomes with extended second-floor runs. Long flex sections sag, crush at supports, and separate at collars under static pressure, particularly in multi-zone systems. We replace damaged sections with properly sized insulated flex, add support points, and seal with mastic rated for your system’s pressure load. A typical townhome flex repair runs $180–$320 per section. Call (877) 335-1974 for a free estimate — we’ll inspect the full run, not just the obvious damage.
The Gorge funnels powerful east winds through Camas each fall and winter, pressurizing home envelopes and forcing unfiltered air through any duct seam or joint that isn’t mechanically secured and mastic-sealed. Foil tape fails within months under this loading. Our sealing protocol for Camas includes brush-applied mastic reinforced with fiberglass mesh at high-stress joints, plus register boot sealing that most generalist HVAC crews skip. Homes near open terrain — Grass Valley, Prune Hill ridge lines — see the most aggressive wind infiltration. Call (877) 335-1974 if your heating costs spike every Gorge wind season.
Yes — we specialize in the tight-clearance crawlspace work that downtown and West Camas bungalows require. These 1920s–1940s homes often have undersized metal trunks or early flex retrofits running through damp, unconditioned crawlspaces where Gorge humidity drives mold and corrosion. We repair or replace metal sections, seal with mold-resistant mastic, and insulate to prevent condensation. Access is tight, but we’ve done hundreds. Typical crawlspace metal repair in these homes runs $340–$580. Call (877) 335-1974 — Richard Anderson handles the crawlspace inspection personally.
We use professional-grade Rotobrush and Nikro cleaning and agitation equipment for pre-repair preparation, and stock sealant, insulation, and air quality components from Honeywell, Aprilaire, and Abatement Technologies. These are contractor-grade brands, not retail alternatives, selected for durability in Camas’s humidity and contamination environment. Honeywell and Aprilaire filtration components integrate with sealed systems to maintain performance; Abatement Technologies HEPA accessories extend protection in high-particulate conditions. We don’t install brands we can’t stand behind for 11 years and counting. Call (877) 335-1974 to discuss component options for your specific system.
Ready to fix the duct problems that Camas’s unique environment creates? Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning, personally diagnoses and seals every system we touch. From mill-contaminated west-side homes to wind-beaten crawlspaces in the oldest neighborhoods, we bring 11 years of specialist experience and 732 customer reviews averaging 4.9 stars to your door. Estimates are free, response to Camas averages under 45 minutes, and we don’t leave until your airflow is restored and your infiltration points are sealed for good. Call (877) 335-1974 now.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Camas and the greater Clark County area since 2013.