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.
Air Duct Cleaning Company in Renton, WA
Air duct cleaning in Renton typically runs $350 – $650 for a whole-home system, with most jobs completed in a single visit. What drives the actual price is the condition of your ductwork, which in Renton is shaped by decades of moisture exposure in the Cedar River Valley and housing stock that spans from post-war ranches to newer hillside builds. We dispatch crews from our Seattle office and serve Renton homeowners with the same written pricing and 365-Day Done Right Promise we apply to every Garrison Partners job. Call (361) 326-5060 for a free estimate.
Why Renton Homes Are Different
Renton sits in the Cedar River Valley, and that geography creates problems you don’t see in drier parts of the metro. The valley traps humidity and cooler air, so condensation forms inside ducts during spring and fall when outdoor temperatures swing. In older neighborhoods like Renton Highlands and Kennydale, many homes were built in the 1940s through 1960s with galvanized steel ductwork that rusts internally and original crawlspaces that lack modern vapor barriers. We’ve opened systems in Kennydale where 1950s ductwork had never been cleaned and contained dust compacted with rodent debris from the wooded greenbelts along the Cedar River trail.
Newer construction in the Renton Highlands and along the Valley floor often uses flex duct in attics. It costs less to install, but it sags over time and traps moisture in the low spots. After winter flooding seasons, we regularly find mold growth in these sagging sections that homeowners didn’t know existed until airflow dropped or musty smells started moving through the vents. The marine climate means wet winters, but Renton’s valley location makes the moisture problem more persistent than in nearby cities at higher elevation.
Our Main Renton Services
Most Renton homeowners call us for one of three jobs, each with its own page and pricing.
Air Duct Cleaning in Renton
We clean the full supply and return duct network using a Rotobrush rotary brush system for the main lines and contact vacuuming at each register. In Renton, we pay special attention to rust scale in older galvanized systems and moisture staining in flex duct, because the valley humidity accelerates both problems. Every job gets a written price before we start and before-and-after photos of your own ducts. Air Duct Cleaning in Renton

Dryer Vent Cleaning in Renton
Dryer vent cleaning removes lint buildup from the transition duct, wall run, and exterior cap. In Renton, we see more bird nesting in exterior caps near the greenbelt edges of Kennydale and the Highlands, and longer vent runs in split-level homes that compound airflow restriction. We clean the full run and verify airflow with a meter before we leave. Dryer Vent Cleaning in Renton

Duct Sealing in Renton
Duct sealing closes leaks in the supply and return plenums, trunk lines, and branch connections using mastic and specialized tape rated for HVAC use. In Renton, we find significant leakage at rusted joints in older steel systems and at disconnected flex duct cuffs in newer homes. Sealing these leaks returns conditioned air to the rooms that need it instead of losing it to attics or crawlspaces. Duct Sealing in Renton

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.
Brands We Service in Renton
We clean and service ductwork connected to all major HVAC brands, and we stock Aprilaire and Guardsman filtration products for replacements on the same visit. If your system needs a filter upgrade or a media cabinet modification, we can usually complete it without a return trip. See our brands for the full list.
Pricing for Air Duct Cleaning Company in Renton, WA
| Service | Typical range in Renton |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard wall-run) | $120 – $220 |
| Dryer vent cleaning (roof-vent or long run) | $180 – $320 |
| Duct sealing (Aeroseal method, single system) | $1,200 – $2,400 |
| Duct sealing (manual mastic, partial system) | $400 – $900 |
| Register/grille deep cleaning (add-on) | $60 – $120 |
| UV light installation (single unit) | $250 – $450 |
| Main trunk line cleaning only | $200 – $400 |
| Return plenum cleaning and sanitizing | $150 – $300 |
Prices in Renton run toward the higher end when systems haven’t been cleaned in 10-plus years, when we encounter rust scale or rodent debris in older neighborhoods, or when access requires crawlspace entry in homes with limited clearance. The price we write down before any work starts is the price you pay. No per-vent add-ons, no equipment charges that appear after we arrive.
Neighborhoods We Serve in Renton
We work across Renton from the Valley floor to the hillside developments. Most appointments are scheduled with arrival windows that keep you from waiting all day, and our crews carry the equipment to complete standard jobs without returning.
- Renton Highlands
- Kennydale
- Downtown Renton
- The Landing
- Benson Hill
Service Area – Cities Near Renton
Our crews cover the full Renton area and regularly schedule jobs in neighboring communities. We also serve Kent, WA to the south, Mercer Island, WA across Lake Washington, Maple Valley, WA to the southeast, and Issaquah, WA to the east. Scheduling is coordinated from our Seattle office, with local crews dispatched to each job.
Serving Renton, WA - Our Local Coverage Area
We’re based in the Renton 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 Cleaning Company in Renton
No permit is required for standard air duct cleaning or dryer vent cleaning in Renton. Duct sealing that involves modifying the HVAC plenum or adding new return air pathways may need a permit; we handle the determination and any paperwork if your job crosses that line.
We typically schedule within one to two weeks, with some flexibility for urgent situations like post-flooding mold concerns or dryer vent blockages. Calls are answered by a live person, so you’ll know availability before you hang up. Call (361) 326-5060 to check current openings.
Yes. We provide written scopes and pricing for HOA board approvals and coordinate access for multi-unit buildings in communities like The Landing and newer developments near the Highlands. Every technician is background-checked and uniformed, and we leave common-area access points clean and locked.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Renton Customers Say
"Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H.




Before
After
Before
After
Before
After