Duct Sealing in Palm Beach - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Palm Beach

Duct sealing in Palm Beach typically runs $850 – $2,400 for a whole-home system, with most single-family jobs falling between $1,200 and $1,800. We usually schedule within 3 – 5 business days and complete the work in one day. Call (361) 326-5060 for a written estimate before any work starts.

Call (361) 326-5060

We’ve walked through enough Palm Beach homes to know the pattern. A homeowner on Jungle Road notices their bedroom never cools below 78 in July. Another on El Bravo Way watches their electric bill spike every August despite the thermostat never moving. The culprit is rarely the AC unit itself. It’s the ductwork, pulling conditioned air into hot attic spaces, drawing humid outdoor air through gaps, and forcing the system to run hours longer than it should. Palm Beach’s subtropical humidity and salt-laden air make leaky ducts worse here than inland markets. When warm, moist air meets cooled metal inside a chase, condensation forms, corrosion follows, and the leaks grow. Our Duct Sealing team treats this as a climate-specific repair, not a generic patch job. We dispatch from our Miami office and carry mastic, metal tape, and aerosol sealant rated for marine environments.

Why Hollis Air Duct Cleaning Is Palm Beach’s Preferred Duct Sealing Company

Palm Beach homeowners don’t call us because we’re the cheapest option on a coupon mailer. They call because they’ve already been through a technician who quoted one price on the phone and presented another at the door. Hollis Air Duct Cleaning, part of the Garrison Partners family since 2004, operates under The Garrison Standard: written price before work starts, arrival inside the quoted window, and a 365-Day Done Right Promise that covers every repair in writing. If the seal fails within a year, we return and make it right at no charge, including a free second visit.

Our crews know the local housing stock. We’ve sealed ducts in 1920s Mediterranean Revival estates near the Flagler Museum where original plaster walls and crawl spaces make access a puzzle. We’ve worked the tight duct chases in South Ocean Boulevard condos where a standard approach won’t fit. Roy Castellanos, who leads Hollis, insists technicians follow The Garrison Code on every job: uniformed, background-checked, accountable. Phones are answered by a live person 24 hours a day, not a voicemail loop. When you schedule Duct Sealing in Palm Beach, you know who is arriving, when, and what it will cost before they touch a tool.

Duct Insulation in Palm Beach

Duct Insulation in Palm Beach addresses a problem most homeowners don’t discover until summer: the metal trunk lines running through their attic or crawl space are bleeding cooled air into 140-degree spaces. In Palm Beach’s climate, uninsulated or poorly insulated ducts can lose 20 – 30% of conditioned air before it reaches the vent. We typically see this in mid-century estates near the Intracoastal, where original fiberglass wrap has compressed or fallen away, and in newer construction where builders used minimum-code R-values that don’t hold up against our heat and humidity.

A typical duct insulation job in Palm Beach runs $1,100 – $2,800 depending on linear footage, access difficulty, and whether we’re reinsulating existing lines or wrapping newly sealed ones. We use foil-faced rigid board and closed-cell wrap rated for high-humidity environments, not the hardware-store batting that absorbs moisture and collapses.

When Insulation Beats Replacement

Many Palm Beach homeowners assume torn or sagging insulation means new ductwork. Often it doesn’t. If the metal itself is intact and properly sealed, reinsulating is half the cost of replacement and delivers the same efficiency gain. We inspect with a borescope before recommending either path.

Condensation Control

Palm Beach’s dew point stays above 70 for months. Without proper insulation and vapor barrier, cold supply lines sweat, saturating ceiling drywall and breeding mold. We specify insulation with sealed seams and proper R-value for attic installations, not just thickness.

HVAC Duct Sealing in Palm Beach

HVAC Duct Sealing in Palm Beach closes the gaps, cracks, and disconnected joints that let conditioned air escape and unconditioned air enter. We use two methods depending on the system: manual sealing with mastic and metal-backed tape for accessible joints, and aerosol duct sealing for leaks hidden inside walls or chases. The aerosol method pressurizes the system and blows sealant particles that bond to leak edges, reaching gaps no hand could find. In Palm Beach’s older homes, we often find disconnected flex runs in crawl spaces and collar separations at plenums caused by decades of vibration and salt corrosion.

Whole-home HVAC duct sealing in Palm Beach typically costs $1,200 – $2,200 for manual sealing of accessible systems, and $1,800 – $3,500 for aerosol sealing of complex or concealed ductwork. Condos on South Ocean Boulevard with limited access often fall at the higher end. Every price is written and agreed before work begins.

Aerosol vs. Manual Sealing

Aerosol sealing suits Palm Beach’s high-end homes where ducts run through finished soffits and original plaster. No demolition, no patching. Manual sealing is faster and more economical when we can reach the leaks directly, common in homes with attic trunk lines.

Post-Sealing Verification

We test before and after with a duct blaster or pressure pan. Palm Beach’s code doesn’t require this, but The Garrison Standard does. You get the numbers: leakage in CFM at 25 Pascals, before and after. No guesswork, no “feels better” claims.

Trusted Brands We Service in Palm Beach

Our trucks carry professional-grade equipment from Nikro, Honeywell, and Aprilaire, the same tools commercial crews use in hospitals and schools. For duct sealing, we stock mastic and tape rated for marine environments, not standard hardware-store products that degrade in salt air. Nikro negative-air machines keep your home clean during the process. Honeywell and Aprilaire filtration components integrate with sealed systems to maintain pressure balance. We keep common parts on the truck for Palm Beach jobs, so we’re not waiting on a Miami supply house mid-repair. If your system uses Abatement Technologies components or Guardsman filtration, we service those too. Fast turnaround matters here, especially when a homeowner is prepping a seasonal residence before November arrivals.

Common Duct Sealing Problems We See in Palm Beach Homes

• Salt corrosion at return grilles. Homes on the ocean side of the island often show a fine white salt film inside return grilles and ductwork. That same salt accelerates metal fatigue at joints and collars, opening gaps that inland homes don’t develop.
• Dormant-system mold and seal failure. Palm Beach’s seasonal luxury market means duct systems sit idle for months. When owners return and crank the AC, disturbed microbial growth and expanded leaks from dried mastic create immediate problems. We inspect and reseal before “season” starts.
• Original ductwork in 1920s Mediterranean Revival homes. Custom fabricated metal in estates near the Breakers often lacks modern sealing standards. We preserve historic character while bringing leakage down to current efficiency targets.
• Post-hurricane moisture intrusion. Power outages after storms leave ducts stagnant and humid. Microbial growth follows, and displaced insulation or water-damaged mastic creates new leaks. We check seals as part of post-storm HVAC recovery.

Pricing for Duct Sealing in Palm Beach, FL

We Also Serve Cities Near Palm Beach

Our crews work throughout Palm Beach County. We regularly schedule Air Duct Cleaning in Palm Beach and Dryer Vent Cleaning in Palm Beach for homeowners in West Palm Beach, North Palm Beach, Greenacres, and Palm Beach Gardens. Same written pricing, same 365-Day Done Right Promise, same live-answer scheduling in every community we serve.

FAQs About Duct Sealing in Palm Beach