Fast, Reliable Duct Repair & Sealing Across Everett
Duct repair and sealing in Everett, MA typically runs $280–$650 for most residential jobs, with mastic sealing of metal trunk lines starting around $180 and full flex duct replacement in tight basement chases reaching the higher end. We’re usually on-site in Everett within a day of your call. If your triple-decker along Broadway or Elm Street is losing heated air into the basement, pulling in musty crawlspace air, or still carrying residual soot from an old fuel-oil conversion, our Duct Repair & Sealing team can diagnose and fix it. Call (877) 517-5646 for a free estimate.
Everett’s housing stock is unlike anywhere else in Greater Boston. The city’s 1.6 square miles are packed with early-1900s triple-deckers and two-family wood-frames, most retrofitted with forced-air systems decades after construction. We’ve spent 14 years working in these exact conditions. Thomas Hernandez shows up as both owner and lead technician, using Rotobrush and Nikro equipment built for remediation-grade work, not basic residential cleaning.
Why Titan Air Duct Cleaning Lowell Is Everett’s Preferred Duct Repair & Sealing Company
Our reputation in Everett comes from handling what other crews won’t touch: original metal ductwork from the 1920s, flex duct crammed into basement chases with no access, and systems still contaminated by fuel-oil conversion residue. 389 customers have reviewed us at 4.7 stars — many from right here in Everett and neighboring Malden. They mention the same thing: Thomas arrives personally, explains what he’s seeing inside the ducts, and fixes it without pushing unnecessary replacement.
Response time matters in Everett’s humid microclimate. The confluence of the Mystic River and Chelsea Creek creates a localized humidity sink; wet winters and sticky summers mean condensation in uninsulated basement ducts accelerates mold fast. We prioritize Everett calls because delayed sealing in these conditions means more moisture damage, more air leakage, and higher heating bills. Most Everett homeowners we serve are in the 02149 zip, from Glendale Park down to the Chelsea Creek industrial corridor.
Our Duct Repair & Sealing Services in Everett
Mastic Sealant Application
Mastic sealant is our go-to for Everett’s original sheet-metal supply trunks. Unlike tape, which dries and fails in humid basements, mastic remains flexible and creates a permanent airtight bond at trunk-to-branch connections. On a recent job along Elm Street, we tackled a triple-decker where the original fuel-oil-to-gas conversion had left decades of soot coating the metal ductwork. Using our Rotobrush system and mastic sealant, we sealed multiple leaking joints at the trunk-to-branch connections that were sucking in musty basement air. The homeowner reported immediate improvement in indoor air quality and less dust accumulation. A typical mastic sealing job for an Everett triple-decker runs $280–$420.
Metal Duct Repair
Everett’s original metal ductwork — the galvanized steel supply trunks installed during 1970s–80s fuel-oil-to-gas conversions — can be repaired and sealed effectively if the metal hasn’t corroded through. We see these systems constantly in the two-families near Glendale Park and along the Broadway corridor. The problem isn’t the metal itself; it’s the oily particulate and soot residue that continues to flake off and re-contaminate air streams. Our process: Rotobrush mechanical agitation to dislodge residue, then HEPA vacuum extraction, then mastic sealing of all joints. Metal duct repair and sealing in Everett typically costs $350–$550 depending on trunk length and access.
Flex Duct Repair & Replacement
Flex duct is the weak link in Everett’s retrofitted systems. Crammed into tight basement and closet chases, it kinks, sags, and develops leaks at connection points. The humid air from Everett’s river-adjacent crawlspaces gets pulled straight into living spaces through these gaps. We replace damaged flex runs with properly sized, insulated flex duct — critical in unheated Everett basements where condensation forms on uninsulated surfaces. Flex duct repair or replacement in tight chases runs $180–$340 per run, with most Everett jobs needing 2–4 runs addressed.
Duct Insulation
Uninsulated metal ducts in Everett’s unheated basements sweat. It’s that simple. The cold supply air hits humid basement air, condensation forms, mold follows. We wrap accessible metal trunks with formaldehyde-free fiberglass insulation, sealed with vapor-barrier mastic. This is especially important for Everett homes near Chelsea Creek, where the industrial-river microclimate pushes basement humidity higher than inland Malden or Medford. Duct insulation for accessible basement runs in Everett typically runs $320–$580.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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 Everett
We carry Rotobrush and Nikro equipment on every Everett job — the same platforms used in commercial remediation work, applied to residential duct systems. For air quality components tied to sealing and filtration upgrades, we work with Honeywell and Aprilaire products. We stock common flex duct diameters, mastic compound, and insulation wraps locally, so Everett jobs don’t get delayed waiting on parts. Most repairs are completed same-day.
Common Duct Repair & Sealing Problems We See in Everett Homes
- Leaky flex duct connections in tight basement chases pull in humid, mold-laden air from crawlspaces. Everett’s retrofitted forced-air systems often have flex duct jammed into spaces never designed for it, with connections that separate or were never properly sealed.
- Residual fuel-oil soot and oily particulate in original metal supply trunks re-contaminate cleaned ducts if not properly sealed. This is the legacy of Everett’s industrial heritage — furnaces converted in the 1970s–80s with ductwork that was never cleaned afterward.
- Uninsulated metal ducts in unheated basements condense moisture during wet winters, leading to mold growth. Everett’s position at the Mystic-Chelsea confluence makes this worse than in inland communities — the humidity sink is real and measurable.
- Original duct systems never professionally cleaned since installation mean decades of accumulation, including post-construction debris, pet dander, and in Everett’s case, industrially-impacted outdoor particulate drawn through leaky returns.
Pricing for Duct Repair & Sealing in Everett, MA
| Service | Typical Range in Everett |
|---|---|
| Mastic sealant (trunk lines, joints) | $180–$340 |
| Flex duct repair/replacement (per run) | $180–$340 |
| Metal duct repair + sealing | $350–$550 |
| Duct insulation (accessible basement runs) | $320–$580 |
| Full system assessment + multi-service repair | $480–$650 |
Everett’s older housing stock affects pricing in specific ways. Tight basement chases mean more labor time to access ducts. Original metal trunks with fuel-oil residue require additional cleaning steps before sealing. But we don’t guess — we inspect first. Every estimate is free, and we’ll show you exactly what we’re seeing with camera inspection where access allows. Call (877) 517-5646 to schedule.
We Also Serve Cities Near Everett
We regularly cross the city line for duct repair and sealing work in Malden, Chelsea, Revere, and Medford — often on the same day as Everett appointments. The housing stock and climate conditions are similar, and our route efficiency keeps response times short across this cluster. If you’re in one of these neighboring cities and found this page, the same pricing and service structure applies.
Serving Everett, MA — Our Local Coverage Area
We’re based in the Everett 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 Everett
Yes — duct sealing combined with proper mechanical cleaning of the metal trunk lines is the most effective way to stop sooty odors from circulating. The smell comes from residual oily particulate in the original supply trunks, which flakes off and enters your air stream through leaks at joints and connections. We seal those leak points with mastic after cleaning, preventing the odor from re-entering. Call (877) 517-5646 for a free inspection — we’ll confirm whether your system has this specific contamination pattern.
Replace uninsulated flex duct with properly sized, insulated flex duct, and seal all connections with mastic rather than tape. Everett’s river-adjacent crawlspaces are humidity sinks; standard flex duct without insulation will always condense in winter. We also check whether your return air path is pulling directly from that damp crawlspace — a common design flaw in Everett retrofits. Most flex duct replacement jobs in Everett run $180–$340 per run. Call for an exact quote.
Signs include weak airflow at distant registers, rooms that never reach temperature, and unusually high heating bills. In Everett’s triple-deckers, we find kinked flex duct in tight basement chases where installers forced bends too sharp for the duct diameter. We verify with visual inspection where access exists, and measure static pressure to identify restrictions. Kinked flex duct doesn’t improve on its own — it creases permanently and restricts airflow until replaced or rerouted.
Yes, if the metal hasn’t rusted through or developed holes larger than repairable patches. We’ve sealed original metal ductwork throughout Everett’s early-1900s housing stock. The key step most crews skip: cleaning the interior first, especially if there’s fuel-oil conversion residue. Sealing over contaminated metal traps the problem inside. We clean, then seal with mastic. A typical metal duct repair and sealing job in Everett runs $350–$550.
Yes — we service all of Everett including the 02149 zip and neighborhoods near Chelsea Creek. Homes in this area face additional air quality pressure from the industrial corridor’s elevated fine-particulate and VOC concentrations, making tight duct sealing particularly important for indoor air health. We’ve completed jobs in this zone and understand the specific contamination profile. Same response time, same free estimate process. Call (877) 517-5646.
Ready to fix your Everett home’s duct leaks? Thomas Hernandez personally handles every duct repair and sealing job we take in Everett — no subcontracted crews, no delegated assessments. With 14 years specializing in air duct and HVAC systems and 389 verified reviews behind us, we’ll diagnose what’s actually wrong and fix it with equipment built for more than a basic residential clean. Call (877) 517-5646 today for your free estimate.
Written by Thomas Hernandez, Owner at Titan Air Duct Cleaning Lowell, serving Everett and Greater Boston since 2010.