Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Piedmont, CA
Air duct repair in Piedmont usually means working on galvanized trunk lines and branch runs installed before 1950, often patched together over decades of remodels. The steep hillside lots off Highland and Moraga avenues create tight crawlspaces and attic access points where duct systems have been repeatedly cut, spliced, and abandoned. We focus on sealing what’s leaking, replacing what’s failed, and cleaning what’s accumulated. Hallmark Air Duct Cleaning has served Piedmont since 2011. Call (833) 467-6681 when you’re ready to address what’s actually moving through your ductwork.
Why Piedmont Homes Are Different
Piedmont’s housing stock sits mostly between the 1910s and 1950s, which means the original forced-air systems were never designed for today’s filtration demands. Gravity furnace conversions left behind octopus-style galvanized trunks that often run through unconditioned attics and crawlspaces. The mild, fog-influenced climate means HVAC systems idle for long stretches, and dust settles deep into those horizontal runs. Damp winter crawlspaces add a musty odor that gets pulled into the system when the heat finally cycles on. Then wildfire smoke season arrives from the surrounding hills, and fine ash pushes into the same ducts alongside decades of caked dust. Homeowners in Piedmont tend to want interior work done without cutting new access holes or altering visible systems, which is exactly why we match our extraction equipment to each duct type rather than forcing a one-size approach.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main Piedmont Services
Piedmont homeowners call us most often for two things: removing years of accumulated dust and smoke residue from aging duct systems, and clearing dryer vents that run long distances through old framing. Each job gets the same equipment-serious approach.
Air Duct Cleaning in Piedmont
Most Piedmont duct systems have never been fully cleaned, and the original galvanized trunks hold dust, leaf litter, and signs of rodents. We use professional-grade Rotobrush and Nikro extraction equipment, matched to whether we’re working with rigid original ductwork or flexible re-runs. Abatement Technologies negative-air equipment keeps what we dislodge contained rather than recirculated through the house. Air Duct Cleaning in Piedmont covers the full scope of what this job involves here.

Dryer Vent Cleaning in Piedmont
Dryer vents in Piedmont often run long, angled paths through crawlspaces or up through old wall cavities. Lint accumulates faster in these runs, and the fire risk is real in homes where the vent was added decades after the house was built. We treat dryer vent cleaning as a dedicated fire-safety service, not a filler add-on. Dryer Vent Cleaning in Piedmont explains the full process and what we find in this city’s older homes.

Air Duct Repair in Piedmont
Air duct repair in Piedmont addresses a specific problem: original sheet-metal systems that have been cut into during successive remodels and never properly resealed. The octopus-style trunks off Highland and Moraga avenues often lose conditioned air into attics and crawlspaces, and the first fall rain after wildfire-smoke season pushes residue through gaps that have been open for decades. Air Duct Repair is a structural fix most cleaning-only companies can’t offer.
Ductwork Repair
Signs you need it
Rooms that never reach the thermostat temperature, visible dust around registers, or a sudden jump in heating bills usually point to leaking duct sections.
What it costs in Piedmont
Ductwork repair in Piedmont typically runs $300 – $900 depending on how many sections need sealing or patching and how hard the access is.
How we do it
We locate the leak with a pressure test, then seal joints with mastic or replace damaged sections, and finish by verifying airflow at each register.
Air Duct Replacement
Signs you need it
Crushed flexible duct runs, rust-through on original galvanized pipe, or insulation that has broken down inside the duct are replacement triggers.
What it costs in Piedmont
Air duct replacement for a typical Piedmont home ranges from $2,500 – $6,500 depending on how many runs are involved and attic or crawlspace accessibility.
How we do it
We remove failed sections, install new duct matched to the system’s airflow requirements, seal every connection, and balance the system so each room gets proper airflow.
What Air Duct Repair Costs in Piedmont
| Item | Typical range in Piedmont |
|---|---|
| Ductwork repair (sealing, patching) | $300 – $900 |
| Air duct replacement (multiple runs) | $2,500 – $6,500 |
| Ductwork installation (new system runs) | $3,000 – $8,000 |
Can you repair ducts without cutting into walls in Piedmont?
Yes, in most cases. We work from the attic, crawlspace, or existing register openings to reach duct sections. Piedmont’s older homes often have removable access panels already in place, and we avoid altering visible surfaces wherever possible.
Why do Piedmont ducts leak more than newer homes?
The original galvanized trunks were hand-fitted and rarely sealed with modern mastic or tape. Decades of remodels have added cuts and connections that were never properly rejoined. Leaks are structural, not a cleaning issue. Call (833) 467-6681 for a direct assessment.
Brands We Service in Piedmont
We work on duct systems connected to all major HVAC brands, including Honeywell and Aprilaire filtration and humidification components installed alongside them. We also deploy Rotobrush and Nikro extraction equipment and Abatement Technologies containment units on every job. See our brands for the full list of equipment and components we’re familiar with in Piedmont homes.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in Piedmont, CA
| Service | Typical range in Piedmont |
|---|---|
| Air duct cleaning (single system) | $450 – $1,150 |
| Dryer vent cleaning | $99 – $179 |
| Ductwork repair (sealing, patching) | $300 – $900 |
| Air duct replacement (multiple runs) | $2,500 – $6,500 |
| Ductwork installation (new system runs) | $3,000 – $8,000 |
Piedmont prices tend to run toward the upper end when ducts are in tight crawlspaces or steep attic access requires additional setup time. Hallmark Air Duct Cleaning gives you one flat price per system before any work begins, so the quote you approve is the price you pay.
Neighborhoods We Serve in Piedmont
We work throughout Piedmont, including the hillside streets off Highland and Moraga avenues, the central district near Piedmont Avenue, and the quieter lanes that climb toward the park. Most appointments in Piedmont can be reached from our Oakland base within a short drive.
- Central Piedmont
- Highland Avenue area
- Moraga Avenue corridor
- Piedmont Park vicinity
- Wildwood Gardens
Service Area – Cities Near Piedmont
Beyond Piedmont, we serve homeowners and property managers in Oakland, CA, including the hillside neighborhoods that share Piedmont’s housing stock and climate. We also work regularly in Berkeley, CA and Alameda, CA, where older duct systems present similar challenges. Albany, CA properties, with their mid-century construction, round out our core East Bay service area.
Serving Piedmont, CA – Our Local Coverage Area
We’re based in the Piedmont 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 Piedmont
Most Piedmont appointments can be scheduled within a few business days. The hillside terrain and older home layouts mean we schedule extra time for access setup, so a cleaning here typically takes a half day or more. Call (833) 467-6681 to find the next available slot.
Routine duct cleaning and most duct repairs do not require city permits. If a full duct replacement is part of a larger remodel with structural changes, your contractor or architect will flag the permit requirements tied to that scope. We keep our work within non-permit repair boundaries.
Yes. We work with property managers and owners of Piedmont duplexes and small multi-unit buildings. Each unit’s ducts are cleaned and documented separately, and we can provide before-and-after photos for tenant records or turnover inspections. Call (833) 467-6681 to discuss a multi-unit schedule.
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 Piedmont Customers Say
"Fair price, competent work. The guy wasn't especially chatty and I had to ask twice to get a real explanation of what he'd done. Not a dealbreaker, just noting it."
- Javier Vargas"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Doug Lawson"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Wade Reed