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

Fast, Reliable Duct Sealing Across Myrtle Beach

Duct sealing in Myrtle Beach typically runs $450 – $1,200 for a whole-home system, with most single-family homes falling in the $600 – $900 range. We seal leaks with mastic and metal-backed tape, test with a duct blaster, and give you a written price before any work starts. Call (361) 326-5060 for a free estimate.

Call (361) 326-5060

We’ve worked in the condo towers along Ocean Boulevard and in the subdivisions off Highway 17 Bypass, and the duct problems we find in Myrtle Beach are not the same ones you’d see inland. The salt-laden humidity here works its way into every joint and seam. When a beachfront unit sits empty with the AC off for two weeks between rental turnovers, the ductwork doesn’t just collect dust; it pulls in moist, salty air through gaps that should have been sealed years ago. By the time the next guest cranks the thermostat to 68 degrees, that moisture is already deep in the system. Our Duct Sealing team knows what to look for because we’ve sealed ducts in the high-rises from the Golden Mile to Market Common, and in the ranch homes and manufactured housing west of the Intracoastal Waterway. Scheduling and dispatch are coordinated from our Charlotte office, but the crews that arrive at your door live and work in the Myrtle Beach area.

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

We’ve been part of the Garrison Partners family since 2004, and that track record matters in a market where fly-by-night operators leave town before the warranty period ends. The Garrison Standard means we arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean. No exceptions.

Our technicians are background-checked and uniformed; you know who’s walking into your home before they arrive. Every duct sealing job in Myrtle Beach carries the 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. That’s not a verbal assurance; it’s written on every contract.

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 morning to schedule.

Duct Sealing Services in Myrtle Beach

Duct Sealing Services in Myrtle Beach address the specific failure patterns caused by coastal humidity, salt corrosion, and the seasonal vacancy cycles that define this market. We seal supply and return plenums, register boots, and longitudinal seams in hard duct; we replace degraded flex-duct connections; and we pressure-test the entire system with a duct blaster to verify results. A typical whole-home duct sealing in Myrtle Beach runs $450 – $1,200 depending on system size, accessibility, and whether we’re working in a high-rise chase or an attic. Condos in buildings like those along North Ocean Boulevard often run toward the lower end for accessible short-run systems; sprawling homes in Carolina Forest or west of the Waterway with attic flex-duct networks trend higher.

Leak Detection and Pressure Testing

We start every job with a duct blaster test. This device pressurizes your duct system and measures airflow loss through gaps and seams. In Myrtle Beach, we regularly find 20 – 30% leakage in systems that “feel fine” because the AC is oversized enough to compensate. You’re paying to cool your attic or the space between condo floors, not your living space.

Mastic Sealing and Mechanical Fastening

We use water-based duct mastic for permanent seals, not foil tape that peels in humid conditions. In coastal Myrtle Beach, mastic outlasts tape by years because it remains flexible and bonds to metal even with temperature swings. We back critical joints with metal-backed tape, then mastic over it.

Duct Insulation in Myrtle Beach

Duct Insulation in Myrtle Beach is often the missing piece after sealing is complete. The attic temperatures here hit 130°F or higher in July and August, and uninsulated or poorly insulated ductwork bleeds cooled air before it reaches your vents. We install closed-cell foam insulation and reflective radiant barriers on duct surfaces, focusing on supply lines in unconditioned spaces. A typical duct insulation job in Myrtle Beach runs $300 – $800 for partial system wrap, or $800 – $1,500 for full replacement of degraded insulation on an entire system. Homes in The Market Common area with tight building envelopes sometimes need less; older homes in Surfside Beach or Murrells Inlet with attic flex-duct often need more.

Vapor Barrier Restoration

Existing duct insulation in Myrtle Beach frequently has a torn or missing vapor barrier. Once the plastic jacket is compromised, humidity condenses on the fiberglass, saturating it and destroying its R-value. We strip damaged sections and install new insulation with intact vapor barriers, sealed at every seam.

Condensation Control in High-Humidity Zones

Condensation on cold duct surfaces is a recurring problem in Myrtle Beach’s subtropical climate. We calculate dew point for your specific attic or chase conditions and specify insulation thickness to prevent surface sweating. In oceanfront buildings where salt air accelerates corrosion, this step protects both efficiency and equipment longevity.

Trusted Brands We Service in Myrtle Beach

We stock parts and materials from Nikro, Honeywell, Aprilaire, and Abatement Technologies, the same brands commercial crews rely on. For Myrtle Beach homeowners, that means no waiting on special orders for standard fittings, filters, or sealing compounds. Our Nikro negative-air machines and Honeywell filtration components are on the van when we arrive. If your system needs a specific Aprilaire media filter or Abatement Technologies HEPA accessory, we carry the common sizes locally. That local inventory matters when you’re dealing with a rental turnover deadline or prepping for peak summer season.

Common Duct Sealing Problems We See in Myrtle Beach Homes

• Salt-corroded register boots in oceanfront condos. The metal collars connecting duct to ceiling registers corrode faster here than inland. We replace them with corrosion-resistant fittings and seal with mastic rated for coastal environments.
• Disconnected flex-duct in hot attics. Inland homes in neighborhoods like Carolina Forest have flex-duct that pulls away from plenums as tape adhesive fails in attic heat. We reconnect with mechanical fasteners and mastic, not tape alone.
• Leaky chase walls in high-rise buildings. Vertical duct chases in 1970s – 1990s condo towers along Ocean Boulevard often leak into wall cavities between units. We seal from inside with aerosolized sealant or access-panel repair.
• Mold-compromised mastic from moisture cycling. Ducts in short-term rentals that cycle between humid shutdown and dry cooling develop mold that eats through old mastic. We clean, treat, and reseal with mold-resistant formulations.

Pricing for Duct Sealing in Myrtle Beach, SC

We Also Serve Cities Near Myrtle Beach

Our crews handle Duct Sealing in Myrtle Beach and travel to Charleston for larger commercial and residential projects. If you’re between these markets or managing properties in both, we can coordinate scheduling across locations. We also handle Air Duct Cleaning in Myrtle Beach and Dryer Vent Cleaning in Myrtle Beach for homeowners who want full system maintenance in one visit.

FAQs About Duct Sealing in Myrtle Beach