Duct Sealing in East Port Orchard, WA | Hollis Air Duct Cleaning

Duct Sealing in East Port Orchard - Tested First, Written Price Second

We measure the actual leakage before recommending any work, then put the scope and the price in writing. You are paying to fix a measured problem, not a guess.

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Every visit starts with

Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

Worth knowing

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.

Styles & brands we work with

Whole-home duct cleaning
Whole-home duct cleaning
Dryer vent cleaning
Dryer vent cleaning
Camera inspection
Camera inspection
Sanitizing & deodorizing
Sanitizing & deodorizing

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Fast, Reliable Duct Sealing Across East Port Orchard

Duct sealing in East Port Orchard typically runs $450 – $1,200 for a whole-home system, and most jobs are completed in a single visit with the price locked in writing before we start. We’re the Duct Sealing crew at Hollis Air Duct Cleaning, and we’ve spent years working in the single-story ramblers and manufactured homes that fill this stretch of the Kitsap Peninsula. Our scheduling runs through the Seattle office, but our technicians live and work these roads daily. We know where the 1970s flexible duct sags in crawlspaces off Mullenix Road, and we’ve traced leaks through original sheet-metal runs in the neighborhoods near Southworth. If your vents blow weak, your energy bill climbed last winter, or you smell musty air every time the furnace kicks on, call us at (361) 326-5060. We’ll give you a written price and a real plan.

Call (361) 326-5060

Why Hollis Air Duct Cleaning Is East Port Orchard’s Preferred Duct Sealing Company

We’ve sealed ducts in East Port Orchard homes built in 1962 and homes built in 1989, and the pattern is consistent: original joints, no mastic, and decades of Puget Sound moisture working on the seams. That repetition matters. It means when we open your crawlspace hatch, we’re not guessing what we’ll find.

Our technicians follow The Garrison Code on every East Port Orchard job: arrive inside the quoted window, price in writing before touching anything, complete the work by the book, and leave the site clean. Background-checked and uniformed, every one of them. The 365-Day Done Right Promise covers every seal we apply. If a joint fails or a leak returns within a year, we come back 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 for someone in another state to return your message.

Duct Insulation in East Port Orchard

Duct Insulation in East Port Orchard addresses a specific problem created by this area’s housing stock and climate: unconditioned crawlspaces and attics where metal or flexible ductwork loses heat fast and sweats moisture into the surrounding air. Most East Port Orchard homes were built between 1960 and 1990 with minimal original insulation, and what remains has often compressed, torn, or grown damp from years of high humidity. We remove deteriorated wrap, seal every joint with mastic, then apply new insulation rated for the temperature swings of Puget Sound winters. A typical duct insulation job here runs $600 – $1,400 depending on linear footage and access difficulty.

Condensation Control in Crawlspaces

East Port Orchard’s wet winters push relative humidity above 70% for months. When warm air moves through uninsulated ductwork in a cold crawlspace, condensation forms on the exterior, dripping onto soil and encouraging mold growth. We spec insulation with vapor barriers designed for this exact condition.

Heat Loss at Disconnected Joints

Original fiberglass wrap often fails first at the joints, where two sections of duct meet. We find temperature drops of 15 – 25 degrees at these gaps in East Port Orchard homes, which forces furnaces to run longer and drives up heating bills. Our crews seal first, insulate second, so the fix lasts.

HVAC Duct Sealing in East Port Orchard

HVAC Duct Sealing in East Port Orchard means closing the gaps, cracks, and disconnected joints that pull unconditioned air into your system and push conditioned air into places you don’t live. In this market, the dominant problems are original mastic that dried and flaked away, flexible duct that pulled loose at boots, and sheet-metal seams that were never sealed properly during construction. Many East Port Orchard homes also have return-air pathways that draw musty crawlspace air directly into the furnace. A full-system seal typically costs $450 – $1,200 here, with simpler single-zone repairs starting lower. We use a written scope, not a verbal estimate that shifts once we’re inside.

Pressure Testing Before and After

We run a duct blaster test to measure total leakage in CFM25 before any work begins, then repeat the test after sealing. East Port Orchard homeowners see the numbers change. That’s how we verify the work, not by waving a smoke pencil around and declaring victory.

Mastic vs. Tape for Permanent Seals

Hardware-store foil tape fails within three to five years in damp crawlspaces. We apply water-based duct mastic, rated for the humidity levels common near Sinclair Inlet, and we brush it into every seam and joint. It remains flexible, it doesn’t off-gas, and it outlasts the house’s next roof.

Trusted Brands We Service in East Port Orchard

Our vans carry sealing and insulation materials from Nikro, Honeywell, and Aprilaire, plus filtration components from Abatement Technologies. We don’t order parts from a warehouse three states away and hope they arrive next week. For East Port Orchard jobs, we stock mastic, insulation wrap, and connector collars sized for the 6-inch and 8-inch flexible duct common in local ramblers and manufactured homes. That inventory means most repairs finish in one visit, not two. When we do need a specialty component, our Seattle office coordinates same-day or next-morning pickup. You’re not waiting for a part to cross the Sound on a ferry.

Common Duct Sealing Problems We See in East Port Orchard Homes

  • Original flexible duct collapsing in crawlspaces. The wire helix inside 1970s-era flex duct rusts through in East Port Orchard’s damp soil conditions, causing sections to sag and kink. We replace with new flex supported every four feet, or convert to rigid duct where access allows.
  • Return-air leaks pulling crawlspace moisture. Many East Port Orchard homes have return plenums with gaps at the floor joist, sucking humid air and occasional rodent droppings into the system. We seal these with sheet-metal patches and mastic, then verify with pressure testing.
  • Sheet-metal seams that were never sealed at construction. Builders in the 1960s and 70s often installed ductwork fast and trusted air pressure to hold joints together. Forty years later, those joints have loosened. We disassemble, clean, reseat, and mastic every connection.
  • Woodstove fine particulate infiltrating ductwork. East Port Orchard’s reliance on wood heat means fine ash and sawdust circulate through forced-air systems, accelerating wear on seals and coating interior surfaces. We clean before we seal, so mastic bonds to metal, not soot.

Pricing for Duct Sealing in East Port Orchard, WA

A typical whole-home duct sealing in East Port Orchard runs $450 – $1,200. Single-zone repairs or partial sealing start around $280. Duct insulation, when combined with sealing, adds $600 – $1,400 depending on linear footage. What moves the number: how much duct is accessible, whether we need to enter a wet crawlspace, the condition of existing joints, and whether we find disconnected runs that require replacement rather than sealing.

We don’t quote per-vent. We don’t bait with a low teaser and rewrite the invoice at your door. The price is written down before any work starts, and it does not move. Every estimate is free, and every job carries the 365-Day Done Right Promise. Call (361) 326-5060 for an exact quote on your system.

We Also Serve Cities Near East Port Orchard

Our crews work throughout the Puget Sound region. We handle Duct Sealing in East Port Orchard as our local focus, and we also schedule jobs in Seattle, Spokane, Tacoma, and Vancouver. If you’re outside East Port Orchard but within our service radius, the same written pricing and 365-Day Done Right Promise apply. We also offer Air Duct Cleaning in East Port Orchard for systems that need debris removal before sealing, and Dryer Vent Cleaning in East Port Orchard for homeowners addressing fire safety in the same visit.

Serving East Port Orchard, WA - Our Local Coverage Area

We’re based in the East Port Orchard 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 East Port Orchard

Why East Port Orchard Chooses Hollis Air Duct Cleaning

We set the standard for duct sealing in East Port Orchard.

No Per-Vent Upsells

One flat price per system, agreed before we start. We do not price per vent, and nothing gets added to the invoice that you did not approve first.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in East Port Orchard

Getting your duct sealing handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your duct sealing needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in East Port Orchard - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local duct sealing pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What East Port Orchard Customers Say

Trusted by homeowners across East Port Orchard and surrounding areas.

★★★★★

"They checked each section with a camera and showed me the dust before and after. Thorough and honest."

Nicole H. · Verified customer
★★★★★

"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."

Gwen O. · Verified customer
★★★★★

"Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."

Ronald W. · Verified customer

Current Offers

Bring these savings to your next appointment.

Flat Price Per System, Quoted Before We Start

No per-vent add-ons. Before-and-after photos on every job.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

Ready for Duct Sealing in East Port Orchard?

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(361) 326-5060

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