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 Sherwood Manor
Your upstairs bedroom stays cold in January even when the furnace runs nonstop. The utility bill keeps climbing, and the air coming from certain vents feels weak or barely warm. In Sherwood Manor, these symptoms usually trace back to the same problem: leaky ductwork in homes built during the post-WWII boom, where original galvanized steel ducts have worked loose at the seams after seven decades of thermal expansion and contraction.
We’re based out of our Hartford office, and crews are regularly in Sherwood Manor and the surrounding towns. Most calls get scheduled within a few days, not weeks. You can reach us at (361) 326-5060, and a live person answers the phone any time, day or night.
Local knowledge matters here. We’ve worked on enough of the ranches and Cape Cods along Route 75 and the streets branching off toward the wooded borders to know what we’re walking into: sharp right-angle turns in the original 1950s design, mastic that has dried and cracked, and connections that have never been touched since Truman was in office. That familiarity saves time and means we spot problems faster.
Why Hollis Air Duct Cleaning Is Sherwood Manor’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. In Sherwood Manor, word travels through neighborhood groups and across fence lines, and our reputation here has been built one job at a time. Homeowners mention the same things: we showed up in the window we promised, the technician was in uniform, and the price on the invoice matched the price on the estimate.
Roy Castellanos leads this operation, and The Garrison Code governs how every technician behaves on a job: arrive inside the quoted window, price in writing before touching anything, complete the work by the book, leave the site clean. No exceptions. That discipline is why Sherwood Manor customers call us back when they need Air Duct Cleaning in Sherwood Manor or Dryer Vent Cleaning in Sherwood Manor later on.
Our 365-Day Done Right Promise covers every duct sealing job in writing. 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. Competitors in this trade rarely put that in writing.
Calls are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday morning to get on the schedule.
Air Duct Sealing in Sherwood Manor
Air Duct Sealing in Sherwood Manor addresses the gaps, cracks, and disconnected joints in your forced-air system that let heated and cooled air escape before it reaches your rooms. In this neighborhood’s mid-century housing stock, we typically find seams that have separated at the trunk lines, collars that have pulled away from floor registers, and old tape that has turned to dust. The work involves sealing these leaks with mastic compound and specialized metal-backed tape, then pressure-testing to verify the fix.
Most Sherwood Manor homeowners need this service when they notice uneven temperatures between rooms, rising energy bills, or excessive dust despite regular filter changes. Because these homes run forced-air heating six months of the year through original ductwork, the cumulative wear is substantial. A typical whole-system duct sealing in Sherwood Manor runs $800 – $1,800, depending on accessibility and the extent of damage.
What the Process Looks Like
We start with a pressure test to map exactly where your system is losing air. Then we access the ductwork through existing openings, basement runs, and crawl spaces, applying mastic and mechanical fasteners at every leak point. For homes near the wooded edges of Sherwood Manor, we often find that rodent activity has compounded the damage, and we’ll flag that for you before we seal.
When Sealing Becomes Urgent
If your furnace runs constantly but rooms stay cold, or if you’re heating your crawl space instead of your living room, the leaks have reached a point where they’re costing you money daily. In Sherwood Manor’s climate, with heating season stretching from October through April, that waste adds up fast.
Duct Sealing Services in Sherwood Manor
Duct Sealing Services in Sherwood Manor from Hollis cover the full range of leak repair, from spot-sealing individual problem areas to complete system restoration. Our Duct Sealing team uses professional-grade mastic compounds and metal-backed tapes rated for the temperature swings your ducts experience, not the hardware-store products that fail within a season. We also handle register boot sealing, return air pathway repair, and connection reinforcement at the furnace plenum.
The need for these services is especially common in Sherwood Manor’s 1940s-50s ranches and Cape Cods, where the original galvanized steel has had 70-plus years to accumulate debris and corrosion at the joints. Forced-air systems here run year-round between heating and cooling demands, so the ducts never get a rest. Whole-system sealing typically falls in the $800 – $1,800 range; partial sealing for isolated problem areas can run $300 – $600.
Equipment We Bring
Our crews work with Nikro negative-air machines and Rotobrush rotary systems when cleaning precedes sealing, ensuring we’re sealing clean surfaces, not trapping debris under new mastic. For filtration upgrades tied to the project, we stock Honeywell and Aprilaire products that integrate with your existing system.

What You Receive Afterward
Every job concludes with a written report showing before-and-after pressure readings, a description of what was sealed, and your 365-Day Done Right Promise documentation. You’ll know exactly what was done and exactly what you’re covered for.

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 Sherwood Manor
We stock parts and materials from Abatement Technologies, Guardsman, and Rotobrush, with Honeywell and Aprilaire filtration products available for system upgrades. For Sherwood Manor customers, this means faster turnaround, no waiting on special orders for standard components, and compatibility with the equipment already in your home. Our technicians carry the common sizes of mastic, tape, and fasteners needed for mid-century ductwork on every truck, so we’re not making a supply run while your house sits open. If your system needs something specialized, our Hartford office coordinates same-day or next-day procurement from regional distributors.
Common Duct Sealing Problems We See in Sherwood Manor Homes
- Cracked mastic at trunk line seams. The original sealant in 1950s Sherwood Manor homes has hardened and flaked away after decades of heating cycles. We remove the old material entirely and apply fresh, flexible mastic rated for modern temperature ranges.
- Disconnected flex duct in attic additions. Many Sherwood Manor ranches had attic HVAC retrofits in the 1970s and 80s, and the flex duct has sagged or pulled loose from its connections. We re-secure and seal these runs properly.
- Return air leaks pulling in crawl space air. In homes near the wooded borders, we’ve found return pathways drawing air through rodent-damaged areas, introducing odors and contaminants. We seal the leaks and recommend remediation if needed.
- Register boots pulling away from floors and walls. The metal collars connecting your floor or wall registers to the ductwork work loose over time, especially in homes with original hardwood that expands and contracts seasonally. We reseat and seal these with mechanical fasteners and mastic.
Pricing for Duct Sealing in Sherwood Manor, CT
Duct sealing in Sherwood Manor typically runs $300 – $600 for partial sealing of isolated problem areas, and $800 – $1,800 for whole-system sealing. The final cost depends on how much of your ductwork is accessible, whether we need to open walls or ceilings, and the extent of damage we find once we’re inside the system.
We do not quote per-vent teaser prices that balloon once the van is in your driveway. You receive one flat price per system, agreed in writing before any work starts. That price does not move at the door. Estimates are free, and we encourage you to compare our written quote against competitors who won’t put their final number on paper until after they’ve started.
Several factors can push a Sherwood Manor job toward the higher end: homes with finished basements where ductwork is buried behind drywall, extensive rodent damage requiring repair before sealing, or systems with multiple previous DIY attempts that need correction. We’ll explain exactly what we found and why it affects the price before you approve anything.
Call (361) 326-5060 for a free estimate. We’ll schedule a time that works, show up in the window we promise, and give you a number you can count on.
We Also Serve Cities Near Sherwood Manor
Our Sherwood Manor crews regularly travel to Bridgeport, Stamford, New Haven, and Hartford for duct sealing and related services. Scheduling is coordinated from our Hartford office, and we maintain the same standards across every town we serve: written price, background-checked uniformed technician, and the 365-Day Done Right Promise on every job.
Serving Sherwood Manor, CT - Our Local Coverage Area
We’re based in the Sherwood Manor 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 Sherwood Manor
Most Sherwood Manor appointments are scheduled within two to five business days, depending on season and current demand. Call (361) 326-5060 for the next available opening, estimates are free.
Yes, we work throughout Sherwood Manor including the areas along Route 75, the ranches near the wooded borders, and the Cape Cod clusters closer to the center. Our familiarity with the specific ductwork layouts in each section means faster diagnosis and less time on your clock.
We do not classify duct sealing as an emergency service, but our phones are answered by a live person 24/7 and we will schedule you as quickly as possible if your system is unusable. For immediate safety concerns like carbon monoxide or gas leaks, contact your utility company first.
Pricing is consistent across our service area, Sherwood Manor rates match what we quote in Hartford and New Haven for comparable work. The variables that affect cost are accessibility and damage extent, not your zip code.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If the seal fails or the leak returns within one year, Hollis returns and makes it right at no charge, including a free second visit. Call (361) 326-5060 to schedule your free estimate and get your written guarantee.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Sherwood Manor and the greater Hartford area since 2004.




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