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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Edgemere
Homes in Edgemere lose 20 – 30% of their conditioned air through gaps and disconnected joints in ductwork, and in a waterfront community where every dollar of heating and cooling gets tested by salt-laden humidity, that’s money bleeding directly into your crawl space. We’re the Duct Sealing team at Hollis Air Duct Cleaning, and we seal ducts in Edgemere’s 1940s – 1970s ranch homes, split-levels on slabs, and renovated bayfront properties the way we’d do our own: written price first, mastic and metal tape by the book, and a 365-Day Done Right Promise on every joint. Our scheduling runs from the Baltimore office, so crews are typically routing to Edgemere within a day or two of your call, not next week. If your vents blow weak, your upstairs never cools, or your energy bill climbed without explanation, call (361) 326-5060 and we’ll give you a free, written estimate before any work starts.
Why Hollis Air Duct Cleaning Is Edgemere’s Preferred Duct Sealing Company
We’ve been sealing ducts in Edgemere long enough to know the local housing stock inside out. The galvanized steel ductwork common in North Point Village and the original bayfront blocks along North Point Road corrodes differently than inland systems because of salt spray off Back River, and our technicians spot that corrosion pattern before they pull the first register. Homeowners from Edgemere Beach to the neighborhoods near Gray Manor tell us the same thing: they called us because the last crew quoted one price on the phone and another at the door. That doesn’t happen here. The price is written down before we touch a single joint, and it doesn’t move. Our background-checked, uniformed techs arrive inside the quoted window, work under The Garrison Code, and leave the site clean. If a seal fails within a year, we come back and make it right at no charge, including a free second visit. That’s not a slogan; it’s in writing on every job.
Air Duct Sealing in Edgemere
Air Duct Sealing in Edgemere means finding every leak, gap, and disconnected joint in your forced-air system and closing it with mastic sealant, metal-backed tape, or mechanical fasteners so the air you paid to heat or cool actually reaches your rooms. In Edgemere’s climate, this matters more than most places: the constant humidity from Back River and Chesapeake Bay pushes against your ductwork year-round, and every leak pulls that moist air into your system, accelerating mold growth and rusting out galvanized steel from the inside. Most Edgemere homeowners need sealing when they notice uneven temperatures, rising utility bills, or musty smells from vents, especially after renovations or flood repairs where ductwork got disturbed. A typical whole-system seal in Edgemere runs $450 – $850 for a single-story home with accessible ductwork in a crawl space or basement, and $650 – $1,200 for split-levels or homes with multiple zones and hard-to-reach runs.
What We Seal and How
We seal supply and return plenums, trunk lines, branch takeoffs, and register boots, the places where Edgemere’s older galvanized systems typically separate or corrode through. Our crews use professional-grade mastic rated for the temperature swings and humidity this market sees, not hardware-store tape that peels off in a damp crawl space.
When Sealing Becomes Urgent
If your ducts run through a vented crawl space and you’ve had standing water after a tidal surge, sealing can’t wait. Those leaks are pulling mold spores and marsh pollen directly into your living space, and in Edgemere’s low-lying blocks, we’ve found systems where the return line was essentially open to the ground.
Duct Sealing Services in Edgemere
Duct Sealing Services in Edgemere from Hollis cover everything from spot repairs on a single disconnected joint to full-system sealing with post-job pressure testing to verify the results. Because so many Edgemere homes sit on crawl spaces or slabs with original ductwork from the 1960s and 1970s, we often find systems where flexible duct has collapsed, trunk lines have rusted through at the seams, or previous owners used duct tape that has long since dried and fallen off. Our process starts with a visual inspection and, when needed, a pressure test to quantify the leakage. We then present a written price for the exact scope, seal every accessible joint with mastic and proper mechanical fasteners, and retest to confirm the improvement. For a typical Edgemere ranch with a single furnace and accessible crawl space, whole-system sealing runs $450 – $850; larger split-levels or homes with multiple HVAC systems run $650 – $1,400.
Pressure Testing Before and After
We measure duct leakage with a calibrated fan and manometer, the same method energy auditors use, so you see the actual CFM loss before we start and the verified reduction after we finish. Edgemere homeowners who’ve had flood repairs especially appreciate this, since disturbed ductwork often leaks far more than the original installation.
Sealing After Renovation or Flood Repair
Post-flood renovations in Edgemere’s waterfront blocks frequently leave ductwork shifted, crushed, or left open to the crawl space. We seal these systems as standalone jobs or bundle them with Air Duct Cleaning in Edgemere when there’s debris, silt, or standing water to remove first.
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 Edgemere
We stock parts and sealing materials from Aprilaire, Abatement Technologies, and Guardsman, the same filtration and HVAC accessory brands installed in commercial buildings across Baltimore County, so Edgemere homeowners aren’t waiting on special orders while their ducts leak. Our mastic compounds and metal-backed tapes are rated for the humidity and temperature cycling these waterfront systems endure, not the dry-climate products some crews carry. When we seal a system that uses Aprilaire media air cleaners or Guardsman UV components, we verify those connections as part of the job so the whole system pulls and delivers air as designed. If your setup includes a Rotobrush-cleaned duct network from a previous service, we inspect those access points and reseal them properly so the cleaning investment isn’t wasted on new leaks.
Common Duct Sealing Problems We See in Edgemere Homes
- Galvanized steel corrosion at trunk line seams. The salt-laden moisture off Back River eats steel from the outside in, and we regularly find Edgemere ductwork where the bottom of the trunk line has rusted through completely, dumping conditioned air into the crawl space for years.
- Collapsed flexible duct in crawl spaces. The original flexible duct installed in 1970s Edgemere split-levels has often sagged, torn, or been crushed by workers during plumbing or electrical updates, creating blockages and leaks that show up as weak airflow to the far rooms.
- Disconnected returns pulling crawl space air. After repeated tidal flooding and repairs, return lines in low-lying Edgemere blocks often separate from their boots, meaning your furnace is circulating air from under your house, complete with the mold and marsh pollen that thrive there.
- Duct tape failures on previous “repairs.” We peel off layers of dried, brittle duct tape on nearly every Edgemere job we open; it was never designed for this application, and in humid crawl spaces it fails within months, leaving homeowners with the same leak they thought was fixed.
Pricing for Duct Sealing in Edgemere, MD
A typical duct sealing job in Edgemere runs $450 – $850 for a single-story home with a single HVAC system and accessible ductwork, and $650 – $1,400 for larger split-levels, multi-zone systems, or homes where we need to navigate tight crawl spaces or repair flood-damaged sections. What moves the price: the linear feet of ductwork, how many leaks we find, whether the system needs access panels cut to reach hidden runs, and if we’re also cleaning debris or brackish water out first. We do not quote per-vent teaser prices that balloon at the door. We inspect, we write the full price down, and that number is what you pay. Every estimate is free, and every sealed system carries our 365-Day Done Right Promise in writing. If a seal we made fails within a year, we return and fix it at no charge, including a free second visit. Call (361) 326-5060 for your exact quote.
We Also Serve Cities Near Edgemere
Our crews route daily from the Baltimore office to Edgemere and surrounding communities, including Baltimore, Columbia, Ellicott City, and Glen Burnie. Wherever you are in the metro, the same standard applies: written price, background-checked uniformed technicians, and the 365-Day Done Right Promise. We also handle Dryer Vent Cleaning in Edgemere for homeowners bundling services or addressing fire-safety concerns after finding lint buildup in long vent runs.
Serving Edgemere, MD - Our Local Coverage Area
We’re based in the Edgemere 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 Edgemere
Duct sealing in Edgemere typically runs $450 – $850 for a standard single-story home, which falls in line with Baltimore County pricing overall, though waterfront homes here often need extra corrosion repair that can push complex jobs toward the $1,200 – $1,400 range. The salt exposure and flood history in Edgemere’s low-lying blocks mean we sometimes find more extensive damage than in inland Columbia or Ellicott City. Call (361) 326-5060 for a free written estimate on your specific system.
We typically schedule Edgemere appointments within one to two business days, with dispatch coordinated from our Baltimore office so crews aren’t driving from distant counties. During peak summer demand, the wait may stretch to three or four days, but we do not overbook or leave you in an open-ended window. Call (361) 326-5060 to check current availability.
Yes, we seal ducts throughout Edgemere, from North Point Village and the neighborhoods along North Point Road to the bayfront blocks near Edgemere Beach and the low-lying streets that catch tidal surge from Back River. Each area has different ductwork challenges, and our crews know which blocks are prone to crawl space flooding and accelerated corrosion.
We answer calls live 24 hours a day, seven days a week, and we will schedule urgent duct sealing for Edgemere homeowners facing active system failure, such as a completely disconnected trunk line or a return pulling floodwater into the furnace. True emergencies get priority scheduling, though most sealing jobs are scheduled within our standard one-to-two-day window. Call (361) 326-5060 and we’ll assess the urgency.
If any seal we apply fails within one year of the job date, Hollis returns and reseals it at no charge, including a free second visit, with no deductibles or service fees. This covers mastic failures, tape separations, and joint disconnections in the areas we worked; it does not cover new damage from subsequent floods, renovations, or pest intrusion. The promise is in writing on every invoice, not a verbal assurance.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Edgemere and the greater Baltimore area since 2004.