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 Belmont, MA
Belmont homeowners typically pay $450 – $850 for whole-house air duct cleaning, with most jobs completed in a single visit. The real challenge here isn’t ordinary dust, it’s the smoke residue from wildfire seasons and the persistent damp that marine-layer fog pushes into crawlspace duct systems. At Hollis Air Duct Cleaning, we size every job to the actual layout of your home, write the price down before we touch a vent, and back it with our 365-Day Done Right Promise. Call (361) 326-5060 for a free estimate.
Why Belmont Homes Are Different
Belmont sits in that pocket between San Francisco Bay and the Santa Cruz Mountains, and the terrain shapes everything about how air moves through these houses. The hills channel wildfire smoke straight into neighborhoods during fall fire season, and that smoke doesn’t stay outside. We’ve opened duct systems in the Cipriani and Belmont Heights areas and found flexible ductwork coated with fine ash that standard HVAC filters never caught. The odor lingers because the particles embed in the polymer lining of flex ducts.
The marine layer rolls in heavy most mornings, especially in lower elevations near Old County Road and the Alameda de las Pulgas corridor. That moisture doesn’t just condense on windows, it settles into crawlspaces where galvanized steel trunk lines from the 1960s and 1970s rust at the seams. Many of these homes still run original ductwork in attics that hit 140 degrees in July, accelerating the breakdown of flex duct adhesive. We see more mold-positive swabs in Belmont crawlspaces than in flatter inland towns because the cool, damp air sits stagnant for hours after sunrise.
Narrow hillside streets off Ralston Avenue and Hallmark Drive also mean our Nikro negative-air machines and Rotobrush rotary systems need to be spec’d for tighter access. Standard van setups don’t always fit. We plan the equipment load for your specific street, not a generic suburban route.
Our Main Belmont Services
Most calls from Belmont fall into three categories: removing wildfire residue and built-up debris from duct systems, clearing dryer vents that run through extended wall cavities common in mid-century builds, and sealing the deteriorated connections that leak conditioned air into attics and crawlspaces.
Air Duct Cleaning in Belmont
We clean the full supply and return network, from the main trunk to each branch vent, using a Rotobrush rotary brush system paired with a Nikro negative-air HEPA vacuum. In Belmont, we pay particular attention to flex duct in crawlspaces, where marine-layer moisture combines with dust to form a paste that standard brushing won’t dislodge. We document the before condition with photos you’ll see on site. Air Duct Cleaning in Belmont is priced as one flat rate per system, agreed before we start.

Dryer Vent Cleaning in Belmont
Dryer vents in Belmont’s older ranchers often run 15 – 25 feet through walls with multiple elbows, and the lint accumulation is worse in homes where the vent terminates on a shaded north-facing wall that never fully dries. We clear the full run with rotary whips and inspect the termination point for proper backdraft damper function. Dryer Vent Cleaning in Belmont includes a written airflow check before we leave.

Duct Sealing in Belmont
Original galvanized steel and aging flex duct in Belmont homes leak conditioned air into attics and crawlspaces at rates that can waste 20 – 30% of heating and cooling output. We seal accessible joints with mastic and mechanical fasteners, then pressure-test the system to verify the reduction in leakage. Duct Sealing in Belmont is quoted as a fixed price based on accessible linear footage, measured on site.

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 Belmont
We stock filters, dampers, and replacement components from Honeywell, Aprilaire, and Abatement Technologies for Belmont jobs, with turnaround on most parts within 24 – 48 hours. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning Company in Belmont, MA
| Service | Typical range in Belmont |
|---|---|
| Whole-house air duct cleaning (single system, up to 12 vents) | $450 – $650 |
| Whole-house air duct cleaning (larger home, 13 – 20 vents) | $650 – $850 |
| Air duct cleaning with wildfire smoke remediation (HEPA + chemical sponge treatment) | $750 – $1,100 |
| Dryer vent cleaning (standard run, up to 15 feet) | $120 – $180 |
| Dryer vent cleaning (extended run, 15 – 30 feet or multiple elbows) | $180 – $250 |
| Duct sealing (partial, accessible trunk and branches) | $400 – $700 |
| Duct sealing (whole-system, including attic and crawlspace) | $800 – $1,400 |
| Mold remediation prep in ductwork (before cleaning) | $200 – $350 |
| HVAC register and grille deep cleaning (add-on) | $75 – $125 |
| UV light installation (Honeywell or Aprilaire) | $300 – $500 |
Belmont prices run toward the higher end of these ranges when crawlspace access is limited by low clearance, when wildfire residue requires chemical sponge follow-up, or when original galvanized duct needs careful handling to avoid dislodging rust scale into the airstream. The price we write down before work starts is the price you pay. No per-vent add-ons, no equipment surcharges at the door.
Neighborhoods We Serve in Belmont
We schedule Belmont jobs with route density in mind, typically booking within 2 – 4 business days across the city. Dispatch and scheduling are coordinated from our Boston office; crews serve Belmont locally with equipment sized for hillside access and crawlspace work.
- Belmont Heights
- Cipriani
- Notre Dame
- Carlmont
- Old County Road corridor
Service Area – Cities Near Belmont
Our crews work the full Peninsula corridor and adjacent communities. We regularly schedule alongside Belmont jobs in Arlington, VA, Cambridge, MA, Newton, MA, and Waltham, MA. If you’re unsure whether your address falls inside our active route, call (361) 326-5060 and we’ll confirm scheduling directly.
Serving Belmont, MA - Our Local Coverage Area
We’re based in the Belmont 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 Belmont
No permit is required for standard air duct cleaning or dryer vent cleaning in Belmont. Duct sealing that involves modifying the HVAC distribution system may require a building permit if it alters the original design capacity; we flag this during the estimate and can coordinate with the city if needed. Call (361) 326-5060 to discuss your specific layout.
We prioritize smoke-impacted homes and typically book within 2 – 4 business days during active wildfire recovery periods. The demand spike is predictable, so we maintain extra HEPA vacuum capacity and chemical sponge inventory for Belmont’s hillside neighborhoods during fall fire season. Call (361) 326-5060 to get on the schedule.
Yes. We spec equipment loads per job, not per route. For tight hillside streets and steep driveways, we use compact Nikro negative-air units and portable Rotobrush systems rather than full-size van-mounted rigs. We confirm access details when you call so there are no surprises on arrival. Call (361) 326-5060 and we’ll walk through your street specifics.
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 Belmont 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.




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