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.
Fast, Reliable Duct Sealing Across Cochituate
Cochituate sits in that pocket of MetroWest where the oak canopy runs thick along Route 20 and the old ranch homes on Pelham Island Road still heat with the same forced-air systems installed in the 1960s. We’re the crew that seals ducts in these houses, and we’ve learned the local patterns: how the return pulls leaf litter after October storms, how basement humidity in July warps old tape seams, how a Cape on Bow Road can lose 20% of its heated air through gaps no homeowner sees. Our dispatch runs out of the Boston office, but our vans carry mastic, metal tape, and aerosol sealant gear straight to Cochituate jobs without the runaround. Call (361) 326-5060 and you’ll reach a live person who knows the difference between a Cochituate cape and a Wayland colonial, because routing and scheduling matter when you’re trying to get a technician to your door inside the window we promised.
Why Hollis Air Duct Cleaning Is Cochituate’s Preferred Duct Sealing Company
We’ve been sealing ducts in Cochituate long enough that our technicians recognize the house styles before they walk in: the low-pitch ranches near Cochituate State Park with fiberglass ducts that sag at the elbows, the raised capes off Route 30 where metal trunk lines rattle loose from decades of expansion and contraction. That familiarity means we don’t waste your time diagnosing what we already know to check.
Our Cochituate customers write reviews that mention the same things: the technician arrived in the window, the price on the paper matched the price at the end, and the basement was cleaner when he left than when he started. We don’t chase stars; we chase repeat calls from neighbors.
Because Cochituate is a village within Wayland, our crews understand the permitting and disposal requirements that come with that jurisdiction. Not every duct sealing outfit crossing the town line does. That local knowledge keeps jobs moving without the surprises that delay completion.
Our Duct Sealing in Cochituate schedule is built around realistic drive times from our Boston coordination point. We don’t overbook and we don’t ghost. If we say Tuesday between 8 and 10, we’re there.
Air Duct Sealing in Cochituate
Air Duct Sealing in Cochituate means closing the gaps, cracks, and failed joints in your forced-air system so the air you paid to heat or cool actually reaches the rooms it was meant for. In this market, a typical whole-house seal runs $450 – $850 for a single-story ranch or cape with accessible basement ductwork; larger homes with multiple zones or hard-to-reach attic ducts can run $900 – $1,400. We see the need spike in October, when homeowners fire up furnaces for the first time and notice the bedroom above the garage never warms up, or in July, when the AC runs constantly but the second floor stays sticky.
What the Process Looks Like
We start with a pressure test. Our technician seals your registers, pressurizes the duct system, and measures how much air escapes. In Cochituate homes, we regularly find 25 – 35% leakage in systems that haven’t been touched since the Nixon administration. That number goes on the report we hand you before any sealing work begins.
Materials That Hold Up Here
Cochituate’s seasonal swing, from below-zero January nights to August humidity, kills cheap tape. We use mastic compound on metal joints and UL-181 rated foil tape where flexibility matters, not the hardware-store stuff that peels in two seasons. For systems with widespread micro-leaks, we deploy aerosol duct sealing technology that finds and fills gaps from the inside.
Duct Sealing Services in Cochituate
Duct Sealing Services in Cochituate cover everything from spot repairs on a single disconnected branch to full-system sealing for houses where the ductwork has never been serviced. Our Duct Sealing team handles rigid metal trunk lines, early flexible ductwork from the 1970s, and modern insulated flex runs. A targeted repair on one or two accessible joints typically runs $180 – $320; comprehensive sealing with pressure testing and post-work verification runs $650 – $1,200 depending on system size and access.
When Partial Sealing Makes Sense
Not every system needs the full treatment. If your basement ducts are exposed and you can feel air blowing from a single failed joint, we’ll quote the repair straight. We don’t upsell whole-system work when a $220 fix solves the problem. That’s The Garrison Standard: price what’s needed, do what was priced.

Full-System Sealing for Older Homes
The 1950s – 1970s housing stock that dominates Cochituate often has original ductwork with decades of cumulative leakage. In these cases, spot repairs are whack-a-mole. We recommend full-system sealing with pre- and post-pressure testing so you see the improvement in hard numbers, not just a warmer bedroom.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Cochituate
Our vans stock sealing materials and compatible filtration components from Aprilaire, Abatement Technologies, and Guardsman, the same brands commercial HVAC crews specify for hospitals and schools. For Cochituate homeowners, that means no waiting on special orders when your system needs a matched component. We carry mastic rated for the temperature swings these brands see in commercial install, rotary brush systems from Rotobrush for pre-sealing cleaning when ducts are fouled with debris, and pressure-testing equipment calibrated to Abatement Technologies specs. If your existing system includes Aprilaire media filters or Guardsman UV components, we verify compatibility before we seal, so the upgrade doesn’t compromise what already works. Parts on the van, technicians who know the brands, and a written price before any work starts. That’s how we avoid the “we’ll have to come back” routine that wastes your time.
Common Duct Sealing Problems We See in Cochituate Homes
- Failed tape seams in basement trunk lines. The original cloth-backed tape installed in 1960s Cochituate ranches dries and falls away after decades of heating cycles and summer humidity. We find bare metal gaps blowing conditioned air into unfinished basement space instead of upstairs bedrooms.
- Return duct infiltration from Cochituate State Park debris. Return ducts in homes near the park pull in fine leaf litter and pollen through gaps in basement walls or crawlspace connections, especially after fall drop and spring bloom. Sealing the duct stops the debris; cleaning it requires our separate Air Duct Cleaning in Cochituate service.
- Sagging flexible duct at elbows. Early flex duct from the 1970s, common in Cochituate capes, kinks at turns and separates from collars. The gap looks small but bleeds massive air volume over a heating season.
- Disconnected dryer vent ductwork affecting pressure balance. We regularly find dryer vent runs that have separated inside walls, throwing off system pressure and creating backdraft issues. Our Dryer Vent Cleaning in Cochituate crew handles these before sealing, because pressurizing a system with hidden vent leaks wastes the seal.
Pricing for Duct Sealing in Cochituate, MA
Here’s what duct sealing costs in Cochituate, based on the jobs we’ve completed here:
| Service Level | Typical Range | What It Covers |
|---|---|---|
| Spot repair (1 – 2 accessible joints) | $180 – $320 | Sealing visible gaps with mastic or foil tape, no pressure testing |
| Single-zone sealing with test | $450 – $650 | Pressure test, seal accessible basement/trunk ducts, post-test verification |
| Whole-house comprehensive seal | $650 – $1,200 | Full system including attic/crawlspace access, aerosol option if needed |
| Aerosol duct sealing | $900 – $1,400 | Interior sealant injection for systems with widespread micro-leaks |
What moves you up or down in these ranges: how much ductwork is accessible versus buried in walls, whether we need to coordinate with Wayland’s permitting for disposal of old insulation or tape, and whether pre-sealing cleaning is required because of heavy debris load from the local canopy. We don’t quote per-vent or per-linear-foot teaser prices that balloon at the door. The price we write down before work starts is the price you pay. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Cochituate
Our Boston-coordinated crews run regular routes to Boston, Worcester, Cambridge, and Lowell, with scheduling built around realistic Massachusetts drive times. If you’re in one of these markets, the same written-price, uniformed-technician standard applies. Cochituate homeowners often refer neighbors in these cities, and we keep the experience consistent across our service area.
Serving Cochituate, MA - Our Local Coverage Area
We’re based in the Cochituate 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 Cochituate
We typically schedule Cochituate duct sealing within 3 – 5 business days of your call, with dispatch coordinated from our Boston office to account for Route 20 traffic patterns and morning rush windows. Call (361) 326-5060 for next available dates.
Yes, we seal ducts throughout Cochituate, from the Pelham Island area to the neighborhoods off Route 30 and the streets bordering Cochituate State Park, where return duct infiltration from the wooded canopy is most common.
We don’t classify duct sealing as an emergency service, but our phones are answered by a live person 24 hours a day, 7 days a week, and we’ll schedule your job at the first available slot that works for your calendar.
Cochituate pricing falls in line with MetroWest rates, though homes here often need more thorough pre-sealing cleaning due to pollen and leaf litter from the dense oak and pine canopy, which can add $80 – $150 if required. Wayland’s disposal ordinances may also affect jobs involving removal of old tape or insulation.
Every duct sealing job is backed by our 365-Day Done Right Promise in writing: if the seal fails within a year, Hollis returns and makes it right at no charge, including a free second visit. The guarantee is the same in Cochituate as across our entire service area.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Cochituate since 2004.




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