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 Duct Sealing Across Placerville
We’re the crew Hollis Air Duct Cleaning sends to Placerville when a homeowner’s system is pulling attic air through gaps you can’t see but can definitely smell. Our Duct Sealing in Placerville jobs run the gamut from historic downtown Victorians with original redwood trunks to 1980s ranch homes off Missouri Flat Road where flexible duct has sagged and separated at the collars. Dispatch and scheduling are coordinated from our Sacramento office, but the technicians who arrive at your door live and work this region. They know that a duct seal in Placerville isn’t the same job as one in the flat valley below. Call (361) 326-5060 and we’ll get you a written quote before any work starts.
Why Hollis Air Duct Cleaning Is Placerville’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Placerville crews operate under The Garrison Standard: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. We also offer our Dryer Vent Cleaning in Placerville with that same standard. That standard matters more here than in most markets because Placerville homes present problems you don’t find in newer construction.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. And our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday when your system is pulling smoke-tainted air from the crawlspace.
The 365-Day Done Right Promise backs every job in writing. If the seal fails within a year, we return and make it right at no charge, including a free second visit. That’s not a satisfaction guarantee. That’s a specific, written commitment with a defined trigger and a defined remedy.
Led by Roy Castellanos, Hollis Air Duct Cleaning treats every Placerville job as a referral in the making. In a town where neighbors talk, we intend to earn the next call.
Duct Repair in Placerville
Duct Repair in Placerville often starts with a homeowner noticing one room that never heats or cools right, or a utility bill that climbed after a smoke event. We inspect with a camera, identify the failure, and give you a written price before any repair begins. Typical duct repair in Placerville runs $280 – $520 for standard fixes like reattaching separated branch runs, replacing crushed flexible duct, or patching damaged trunk sections. More extensive repairs on original galvanized systems in the historic district can reach $680 – $1,100 if we’re rebuilding sections of trunk line.
Separated Collars and Crushed Runs
The flexible duct installed in Placerville’s 1970s – 1990s ranch homes sags over time, especially in attics that see our summer heat topping 95 degrees and winter nights below freezing. That thermal cycling loosens straps and lets the duct settle onto framing or insulation. We find crushed runs on Missouri Flat Road properties and in the Sierra Springs area regularly. A crushed run doesn’t move air. We replace the damaged section, support it properly, and seal the connections.
Galvanized Trunk Damage in Older Homes
Original galvanized steel trunks in downtown Placerville’s Victorian and mid-century homes corrode at the seams after decades of condensation. We cut out the failed section, fabricate a replacement, and seal it to the existing system with mastic and mesh. The goal is preserving what’s sound while fixing what’s not.
Air Duct Sealing in Placerville
Air Duct Sealing in Placerville is usually the fix homeowners actually need after a duct cleaning leaves the system still underperforming. We clean first, then seal, because sealing over dirty joints traps debris and the seal fails. Typical air duct sealing in Placerville runs $420 – $780 for a whole-home seal on a standard system up to about 2,500 square feet. Larger homes, multi-zone systems, or extensive sealing on original redwood or galvanized trunks in the historic district can run $890 – $1,400. The price is written before we start. It does not move at the door.
Mastic and Mesh on Original Joints
Original redwood or galvanized trunk joints in Placerville’s older homes were never sealed airtight. They were built to move air, not to contain it under pressure. We brush mastic, a thick water-based sealant, onto each joint, then embed fiberglass mesh for reinforcement. Once cured, it’s flexible enough to handle foothill temperature swings without cracking. This is standard practice on Main Street Victorians and the mid-century homes around Bedford Avenue.
Smoke Event Sealing Protocol
After wildfire smoke from the Eldorado National Forest, fine ash packs into every seam and boot collar. We pulled up to a Victorian-era home off Main Street in historic downtown Placerville where the owner had been running the air handler after the Caldor smoke and still smelling ash. Camera inspection showed the original undersized galvanized supply trunks were intact but every joint and boot was wide open, and one branch run had separated at the collar behind the register. We did source removal under negative pressure with HEPA filtration, then sealed the trunk joints, boots, and that collar with mastic and mesh so the system stopped pulling attic and crawlspace air, and the smoke smell cleared within a day.
Trusted Brands We Service in Placerville
Our Duct Sealing crews carry professional-grade equipment from Nikro, Honeywell, and Aprilaire, not hardware-store gear. The Nikro negative-air machines we use for source removal before sealing pull 2,000 CFM and capture particles down to 0.3 microns. That’s the spec you need for fine wildfire ash. Honeywell and Aprilaire filtration products are stocked for Placerville replacements, so when a seal job reveals a failed media filter or a bypass around the cabinet, we fix it without ordering parts and rescheduling. Our technicians explain what each piece of equipment does and why it matters for the air moving through your home. No jargon without translation.
Common Duct Sealing Problems We See in Placerville Homes
- Original redwood or galvanized trunk joints in historic downtown homes were never sealed and open up further as the metal expands and contracts through foothill heat and winter cold. We find gaps of a quarter-inch or more on Main Street properties built before 1950.
- Fine wildfire ash from Eldorado National Forest smoke events packs into seam gaps and boot collars. Sealing over a dirty joint traps the ash and the seal fails within a season. We always clean before we seal.
- Asbestos tape found on older duct joints in Placerville homes has to be handled per El Dorado County air quality rules. A crew that seals first and identifies the tape later has to stop, remediate, and redo the work. We inspect for tape before we commit to a sealing plan.
- Flexible duct sagging in 1970s – 1990s ranch homes around Missouri Flat Road and Sierra Springs separates at the collars and pulls attic insulation into the airflow. Sealing the collar without addressing the sag just delays the next failure.
Pricing for Duct Sealing in Placerville, CA
Duct sealing in Placerville typically runs $420 – $780 for a standard whole-home seal on systems up to 2,500 square feet. Larger homes, multi-zone HVAC, or extensive work on original redwood or galvanized trunks in the historic district range $890 – $1,400. Duct repair, when needed before sealing, adds $280 – $520 for standard fixes or $680 – $1,100 for major trunk rebuilds.
What moves the price: accessibility (crawlspace vs. attic vs. finished basement), the condition of existing duct material, whether we find asbestos tape requiring El Dorado County protocol, and whether the job follows a smoke event requiring full source removal first. We give one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for an exact quote. Estimates are free.
We Also Serve Cities Near Placerville
Our crews cover Diamond Springs, Shingle Springs, Georgetown, and El Dorado Hills from the same dispatch. If you’re in one of these communities and your system is pulling smoke-tainted air or struggling with temperature balance, the same Placerville crew can be on your driveway. We know the foothill conditions that affect ductwork across El Dorado County.
Serving Placerville, CA - Our Local Coverage Area
We’re based in the Placerville 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 Duct Sealing in Placerville
Your return ducts pulled fine ash through every gap and seam during the smoke event, and your system is now recirculating that trapped ash every time the fan runs. Standard cleaning without sealing leaves the gaps open for the next infiltration. Call (361) 326-5060 and we’ll inspect with a camera to find where the ash settled and whether sealing is the right next step.
Original redwood trunks can often be sealed if the wood is structurally sound and there’s no active moisture damage. We inspect for rot, test airflow, and check joint integrity before recommending seal or replace. Asbestos tape on the joints requires El Dorado County handling protocol, which we build into the plan from the start. Call (361) 326-5060 for an assessment.
Ask whether they’ll inspect for asbestos tape first, whether they clean before sealing, and whether the price is written and final before work starts. A crew that skips the inspection or gives a verbal estimate that “might change” is a crew you’ll be calling back. Hollis puts it in writing every time.
Yes. The 50 – 60 degree temperature swing between our summer peaks and winter lows causes metal duct to expand and contract constantly. Mastic remains flexible and handles that cycling; cheap foil tape dries and cracks within a season. We use mastic and mesh on every Placerville job for that reason.
Absolutely. The flexible duct in those homes loosens at collars and sags in attics over decades. We find separated runs and open boots regularly in the Sierra Springs area and along Missouri Flat Road. Sealing the connections and supporting the duct properly often fixes rooms that never conditioned right. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Placerville since 2004.