Duct Sealing in Ipswich - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Ipswich

If you’re paying to heat rooms that never get warm, or your energy bills keep climbing while comfort stays flat, leaky ductwork is the likely culprit. In Ipswich, where winters run cold and damp off the Atlantic and summers bring thick humidity, unsealed ducts waste 20 to 30 percent of the air your system works to produce. We’re Hollis Air Duct Cleaning, and our Duct Sealing crews serve Ipswich from our Boston office, carrying the tools and mastic compounds needed to close gaps in everything from modern flex duct to the galvanized steel runs threaded through 18th-century cellars. Call us at (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.

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Why Hollis Air Duct Cleaning Is Ipswich’s Preferred Duct Sealing Company

We’ve been sealing ducts since 2004, and the Garrison Partners family of businesses has built its name on one thing: doing what we said we’d do, in writing. That matters in Ipswich, where homeowners have seen too many contractors vanish after cashing a check.

Our technicians are background-checked, uniformed, and held to The Garrison Code: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. No exceptions. Every duct sealing job in Ipswich carries our 365-Day Done Right Promise. If the seal fails or the leak returns within a year, we come back and make it right at no charge, including a free second visit.

Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.

We know Ipswich’s housing stock. From the post-and-beam homes near South Green to the retrofitted systems along High Street, we’ve crawled through dirt-floor basements and navigated hand-hewn beams to reach ductwork that newer towns simply don’t have. That local knowledge saves time and protects your home’s historic finishes.

Duct Sealing Services in Ipswich

Duct Sealing Services in Ipswich address a problem most homeowners don’t know they have: conditioned air escaping through gaps, joints, and disconnected runs before it ever reaches your rooms. We use professional-grade mastic compounds and metal-backed tape, not the hardware-store foil that peels off in six months. Our crews pressurize the system to locate leaks, seal them at the source, and verify results with a follow-up test. A typical whole-home duct sealing in Ipswich runs $800 – $1,800 depending on system accessibility and the extent of leakage. Homes with ductwork buried in unconditioned attics or squeezed behind original plaster walls, common near the South Green historic district, tend toward the higher end.

Leak Detection and Pressure Testing

We start every job with a duct blaster test or calibrated pressure measurement to find exactly where your air is going. In Ipswich’s older homes, we often discover significant leakage at the furnace plenum and at joints where retrofitted ductwork meets original chimneys or balloon framing. The test gives us a baseline and lets us prove results when we’re done.

Mastic Sealing of Joints and Connections

We brush on water-based duct mastic, a thick sealant that remains flexible for decades and won’t degrade like tape alone. For high-temperature connections near the air handler, we use reinforced mesh and mastic combinations rated for the heat cycling that Ipswich’s oil and gas furnaces produce through long winter runs.

Duct Insulation in Ipswich

Duct Insulation in Ipswich solves a different but related problem: thermal loss through thin metal or unwrapped flex duct running through unconditioned spaces. In this town, that means most basements, crawlspaces, and attics where ducts sweat in summer and bleed heat in winter. We wrap accessible runs with formaldehyde-free fiberglass insulation or closed-cell foam sleeves, depending on space constraints and moisture conditions. A typical duct insulation job in Ipswich runs $600 – $1,400 for partial-system work, or $1,200 – $2,500 for full coverage of all accessible runs. Homes near the marshy lowlands off Argilla Road often need vapor-barrier wrapping to combat the persistent damp that rises from below.

Attic and Crawlspace Wrap

Unconditioned attics in Ipswich can hit 120°F in July and drop below freezing in January. Bare metal ductwork in that environment is like running your heating and cooling dollars through a sieve. We install R-6 or R-8 insulation with intact vapor barriers, sealed at every seam, so the air arriving at your vents matches the temperature your thermostat requested.

Condensation Control for Humid Basements

Dirt-floor basements and stone foundations, standard in Ipswich’s First Period homes, create microclimates where cold supply ducts sweat continuously. That moisture drips onto floor joists, invites mold, and eventually destroys the duct metal itself. Our insulation wraps include proper vapor sealing to break that cycle, paired with recommendations for basement moisture management where needed.

Trusted Brands We Service in Ipswich

Our vans carry sealing and insulation materials from Abatement Technologies and Guardsman, plus rotary brush systems from Rotobrush for jobs where Air Duct Cleaning in Ipswich precedes sealing work. We don’t guess at what fits your system. For Ipswich homeowners with Honeywell or Aprilaire filtration components, we stock compatible fittings and transition pieces so we’re not ordering parts while your job sits half-finished. Most sealing materials are on the van when we arrive; if your historic home needs a custom fabricated transition, we coordinate from our Boston office and return within 48 hours. The equipment roster matters because ductwork in a 1680s post-and-beam house doesn’t forgive shortcuts.

Common Duct Sealing Problems We See in Ipswich Homes

• Retrofitted ductwork pulling away from original structures. In homes near High Street and the South Green, we regularly find flex duct or metal runs that were forced through openings too tight for the gauge, causing joints to separate as the house settles on its timber frame. The leaks are often hidden behind lath-and-plaster walls where homeowners never think to look.
• Corroded metal at coastal air intakes. Ipswich’s salt-laden Atlantic air accelerates rust on exposed duct components, especially on homes within a mile of the marsh or Crane Beach. Corroded metal doesn’t seal; it crumbles. We identify compromised sections and replace them before sealing the surrounding system.
• Condensation destroying tape seals in unconditioned crawlspaces. The combination of cold duct surfaces and humid summer air, standard in dirt-floor basements throughout the 01938 zip code, turns ordinary duct tape into a wet, peeling mess. Mastic is the only lasting solution in these conditions.
• Disconnected returns in balloon-framed walls. Many 18th-century Ipswich homes were built with continuous wall cavities that later served as return air paths. These unlined channels leak at every floor and into every wall cavity, pulling attic dust and basement moisture directly into your breathing air. We seal these pathways or recommend proper return duct installation where feasible.

Pricing for Duct Sealing in Ipswich, MA

We Also Serve Cities Near Ipswich

Our Duct Sealing in Ipswich crews regularly travel to Essex, Beverly, Danvers, and Newburyport for homeowners dealing with similar coastal climate challenges and aging housing stock. Scheduling is coordinated from our Boston office, and we route to minimize wait times across the North Shore.

FAQs About Duct Sealing in Ipswich