Fast, Reliable Duct Repair & Sealing Across Foxborough
Duct repair and sealing in Foxborough typically costs $180-$650 depending on whether we’re sealing accessible joints with mastic or replacing collapsed flex duct in an attic, and most residential jobs are completed in a single visit. If you’re running a restaurant or hotel near Patriot Place, post-season exhaust duct sealing runs $400-$1,200 given the grease load those systems carry. Call (844) 685-6342 and we’ll send our Duct Repair & Sealing team to your Foxborough property today.
We’ve worked in Foxborough since 1984, long before Gillette Stadium was Gillette Stadium. Our technicians know the difference between a 1978 colonial off Route 140 with original galvanized ductwork and a 2005 build near Patriot Place with flex duct that was never properly supported. That matters because the repair isn’t the same, and the pricing shouldn’t be guesswork either. We show up when we say we will, we diagnose with a camera, and we tell you the honest price before we lift a tool.
Why Bellows Air Duct & Vent Co. Is Foxborough’s Preferred Duct Repair & Sealing Company
Foxborough homeowners call us back because we don’t bait-and-switch. Our 90-Day Done Right Promise is stamped on every job, in writing, with no paperwork if something needs adjusting. We’ve earned that reputation across Norfolk County by doing what we said we’d do, starting with the phone call.
Our response time to Foxborough is typically same-day or next-day for standard calls, and we maintain priority scheduling for Patriot Place commercial accounts during the NFL off-season window when duct sealing can’t wait for September. Calls are answered by a live person 24 hours a day, not an app or a voicemail tree.
We understand Foxborough’s housing stock because we’ve crawled through its attics. The 1970s-1990s subdivisions near Foxborough Common, the older cape cods around the town center, the ranches off Cedar Street - each has a duct system shaped by its era’s building practices and often modified by later HVAC replacements that created new problems. We don’t guess. We camera-inspect before we quote and again before we leave.
Our Duct Repair & Sealing Services in Foxborough
Duct Sealing with Mastic Sealant
Foxborough’s inland climate hits duct seals harder than coastal towns. The freeze-thaw cycling each winter cracks mastic and loosens tape on exterior-wall runs, while humid summers let mold take hold in return-air plenums that were never properly sealed to begin with. We apply professional-grade mastic sealant from Abatement Technologies, brushing it into every joint and seam, then verify with a camera that the seal holds under pressure. For Patriot Place restaurants, we use high-temperature mastic rated for grease-laden exhaust systems that standard residential products can’t handle.

Flex Duct Repair
Flex duct was the easy solution for a lot of 1990s HVAC retrofits in Foxborough’s colonials and ranches. Easy to run through an attic, but easy to kink, sag, and crush too. We’ve found flex duct in Foxborough homes draped over ceiling joists like a garden hose, collecting debris where it dips and leaking conditioned air into attics that hit 120 degrees in July. Our flex duct repair replaces damaged sections with properly supported runs, using metal sleeves at turns and straps every four feet so the duct stays where we put it. No more hot spots in the bedroom, no more dust blowing from a sag.

Metal Duct Repair
The original sheet-metal systems in Foxborough’s 1970s-1990s subdivisions are now 30-50 years old. We’ve opened up ducts near Foxborough Common where galvanized fasteners have corroded through and seams have worked loose from decades of expansion and contraction. Metal duct repair means replacing rotted hangers, re-sealing longitudinal seams with mastic and mesh, and sometimes fabricating custom transition pieces when a later furnace replacement left a mismatch. We do this in place when possible, saving you the cost of a full replacement that isn’t needed yet.

Duct Insulation
Foxborough’s colder winter lows mean uninsulated or degraded duct wrap wastes real money every heating season. We see original fiberglass wrap crumbling in attics, and replacement wrap that was installed without sealing the duct underneath first - which traps moisture against the metal. Our duct insulation work starts with sealing, then applies new wrap with a proper vapor barrier, taped at every seam. The result is air that arrives at the register at the temperature your furnace produced it.

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.
Trusted Brands We Service in Foxborough
We carry Rotobrush agitation tools for breaking loose debris in residential ductwork, and we stock mastic sealant and reinforced flex duct from Abatement Technologies for the heavier-duty repairs Patriot Place commercial accounts require. For indoor air quality upgrades after sealing, we install Aprilaire media filters and whole-home purifiers. We don’t order parts from a catalog and make you wait - our trucks carry what Foxborough properties typically need, which is how most jobs finish in one visit.
Common Duct Repair & Sealing Problems We See in Foxborough Homes
- Corroded fasteners in original metal ducts. The 1970s-1990s subdivisions near Foxborough Common and along Route 140 have sheet-metal systems where galvanized hangers and screws have rusted through from 30-50 years of humidity cycling. We replace with coated hardware and re-seal the joints.
- Kinked flex duct from later HVAC replacements. Colonials and ranches throughout Foxborough had flex duct added during furnace or AC upgrades, often run across attic insulation with no proper support. The duct sags, kinks at turns, and leaks conditioned air into spaces that don’t need it.
- Failed seals on exterior-wall runs. Foxborough’s inland location means harder freezes than coastal Norfolk County towns. Ductwork running through exterior walls or unconditioned crawl spaces sees sealant crack and tape fail from repeated expansion and contraction.
- Mold in return-air plenums. Humid southeastern Massachusetts summers meet poorly sealed return plenums in older Foxborough homes, especially cape cods with basement returns. We seal first, then sanitize - treating the cause, not just the symptom.
Pricing for Duct Repair & Sealing in Foxborough, MA
Here’s what duct repair and sealing costs in Foxborough’s market:
| Service | Typical Range |
|---|---|
| Mastic sealant application (accessible joints, residential) | $180-$340 |
| Flex duct repair/replacement (single run) | $220-$450 |
| Metal duct repair (seams, hangers, small sections) | $280-$550 |
| Duct insulation replacement (per run) | $150-$320 |
| Patriot Place commercial exhaust duct sealing | $400-$1,200 |
What moves the number: accessibility (crawl space versus open basement), extent of damage found during camera inspection, and whether we’re matching an existing system or fabricating transitions. We disclose the full price before starting. Our $50 Off Any Repair Over $250 applies to ductwork, and we offer a Free Second Opinion on Any Written Estimate if you’ve already been quoted elsewhere. Senior and veteran discounts are 5%, permanent, no expiration.
Call (844) 685-6342 for a free estimate. We’ll camera-inspect, explain what we found, and give you the exact number.
We Also Serve Cities Near Foxborough
Our technicians regularly work in Foxborough and the surrounding towns - Mansfield Center, Mansfield, Sharon, and Wrentham. Each has its own ductwork patterns shaped by housing age and local climate, and we adjust our approach accordingly. Wrentham’s older stock near the center has different challenges than Mansfield’s newer builds, just as Foxborough’s Patriot Place corridor creates demands no neighboring town matches.
Serving Foxborough, MA - Our Local Coverage Area
We’re based in the Foxborough 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 - Duct Repair & Sealing in Foxborough
Yes, most Patriot Place restaurants benefit from post-season exhaust duct inspection and mastic resealing due to the compressed grease load from eight-plus home games plus concerts and events. We serviced a restaurant in Patriot Place near Gillette Stadium where exhaust duct joints had failed from heavy grease infiltration during the previous season. Using Rotobrush tools and Mastic Sealant, we sealed all leaks and installed reinforced flex duct sections to handle the high-volume airflow, restoring ventilation before the next home game. Call (844) 685-6342 to schedule during the off-season window - estimates are free.
Almost certainly yes - 40-year-old sheet-metal systems in Foxborough’s 1980s subdivisions typically have loose seams, corroded fasteners, and failed tape from decades of freeze-thaw cycling. We camera-inspect to confirm where air is leaking, then seal with mastic and replace any rotted hangers. The 90-Day Done Right Promise covers our work. Call (844) 685-6342 for a free inspection.
Yes, properly supported flex duct repair eliminates the sags and kinks that restrict airflow and leak conditioned air into your attic. We replace damaged sections, install metal sleeves at turns, and strap every four feet so the duct maintains its shape. Most Foxborough flex duct repairs finish in one visit. Call (844) 685-6342 for an exact quote - estimates are free.
We use Abatement Technologies mastic sealant for residential and light commercial work, and high-temperature mastic rated for grease-laden exhaust systems in Patriot Place restaurants. For duct repair hardware and flex duct replacement, we source from the same suppliers that stock serious HVAC contractors in Norfolk County. Call (844) 685-6342 to discuss what your specific system needs.
If your hotel’s HVAC has been running near-continuously through the NFL season, a pre-event inspection and sealing of any failed joints is strongly advised - compressed runtime accelerates wear that can fail under the next crowd load. We prioritize Patriot Place commercial accounts during off-season windows to avoid disrupting event operations. Call (844) 685-6342 to schedule - estimates are free, and we answer live 24 hours a day.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Foxborough since 1984.