Duct Sealing in Clear Lake Shores - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Clear Lake Shores

If your energy bills keep climbing and some rooms in your house never reach the temperature you set, you probably have leaky ductwork. In Clear Lake Shores, the combination of salt-laden bay air, year-round humidity, and aging HVAC systems means duct sealing isn’t a luxury, it’s how you stop throwing money at the power company. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our crews work Clear Lake Shores regularly, from the canal-front homes along South Shore Boulevard to the bayside neighborhoods near Clear Lake Road. Call us at (361) 326-5060 for a free estimate, and we’ll give you a written price before any work starts.

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Why Hollis Air Duct Cleaning Is Clear Lake Shores’s Preferred Duct Sealing Company

We’ve been in this trade since 2004, and we’ve learned that Clear Lake Shores homeowners don’t want a sales pitch, they want a crew that shows up on time, knows what pier-and-beam duct runs look like, and leaves the job site clean. Our dispatch office coordinates scheduling from Dallas-Fort Worth, but the technicians who reach your door are the same ones who’ve sealed ducts in Kemah, League City, and right here on the island.

Our customers in Clear Lake Shores tell us the same thing: they chose us because we priced the job in writing before touching anything, and because our technicians arrived in uniform with background checks already completed. That’s The Garrison Standard, and it applies to every job we run in Galveston County.

Phones here 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 something that should have happened Friday afternoon.

Every duct sealing job we complete in Clear Lake Shores carries our 365-Day Done Right Promise. If the seal fails or the leak returns within a full 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.

Duct Sealing Services in Clear Lake Shores

Duct Sealing Services in Clear Lake Shores address the specific failure points that bay-front humidity and salt air create in residential HVAC systems. We use professional-grade mastic compounds and metal-backed tape, applied after pressure-testing your ductwork to locate every leak, not just the obvious ones. In this market, a typical whole-house duct sealing job runs $1,200 – $2,400 depending on system size and accessibility, with smaller partial repairs starting around $450. Homes on pilings with underfloor duct runs, common along the canals here, often take longer to access and seal properly.

Pressure Testing and Leak Detection

We start every job with a duct blaster test or calibrated pressure measurement to quantify exactly how much conditioned air you’re losing. In Clear Lake Shores, we regularly find 25 – 35% leakage in systems that haven’t been tested in years, especially in elevated homes where flex duct has sagged or pulled loose from coastal wind vibration.

Mastic Sealing and Mechanical Fastening

After we map the leaks, we seal joints and seams with duct mastic, a thick, flexible compound that outlasts tape alone in humid conditions. For corroded register boots and salt-damaged connections in canal-front properties, we add mechanical fasteners so the seal holds through another hurricane season.

Duct Insulation in Clear Lake Shores

Duct Insulation in Clear Lake Shores solves a problem that inland Texas homeowners rarely face at this intensity: condensation forming on cold duct surfaces in unconditioned spaces, then dripping onto ceilings, insulation, or pier-and-beam subfloors. When your ducts run through an attic that hits 140°F in August or an open underfloor where bay humidity hangs at 80%+, uninsulated metal or thin flex duct sweats constantly. That moisture feeds mold, weakens structural materials, and destroys the very air quality your HVAC is supposed to protect. Whole-system duct insulation in Clear Lake Shores typically runs $1,800 – $3,500, with spot insulation on accessible sections starting near $650.

Vapor-Barrier Wrapping for Humid Environments

We install closed-cell foam or foil-faced insulation with a complete vapor barrier, sealed at every seam. In Clear Lake Shores’s climate, a partial wrap or compressed batt is worse than none, it traps moisture against the duct. Our crews know to check for existing biological growth before insulating, because sealing mold inside a new wrap just accelerates the problem.

Attic and Underfloor Application

Elevated homes on South Shore Boulevard and the bayside streets often have ductwork in both locations. We assess each run individually, sometimes recommending insulation only where the thermal penalty is highest, to keep your investment targeted and your written price honest.

Trusted Brands We Service in Clear Lake Shores

Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines for jobs that need cleaning before sealing, plus filtration and sealing products from Honeywell, Aprilaire, and Guardsman. We don’t run to the hardware store for mastic or tape, we stock professional-grade materials matched to coastal conditions. For Clear Lake Shores homeowners, that means faster turnaround and seals built to survive the humidity that degrades consumer-grade products in two seasons. When we quote your job, we specify what we’re using and why it fits your home’s exposure to bay air.

Common Duct Sealing Problems We See in Clear Lake Shores Homes

• Corroded register boots in canal-front homes. Salt air from Clear Lake and the bay corrodes metal register connections faster than anywhere inland. We find rusted-through boots on homes built in the 1970s and 1980s along the canals, where decades of salt-laden breeze have eaten the galvanized coating. Sealing these requires replacement, not just tape.
• Sagged flex duct in pier-and-beam underfloors. The elevated homes common in Clear Lake Shores often have flex duct strung between piers, where humidity, rodents, and gravity pull it out of shape. Sagging creates low spots where condensation pools and leaks form at the stress points.
• Leaky return chases pulling attic air. After Hurricane Ike and subsequent storms, many homes were rebuilt with tighter envelopes but original return plenums. We find return leaks in attics that draw 120°F air into the system, costing you efficiency and comfort every minute the compressor runs.
• Post-evacuation mold compromising seals. When Clear Lake Shores evacuates for a tropical storm and power stays off for days, duct interiors grow mold that breaks down mastic and tape adhesives. Returning homeowners notice musty airflow and uneven temperatures, not realizing the previous seal has biologically failed.

Pricing for Duct Sealing in Clear Lake Shores, TX

We Also Serve Cities Near Clear Lake Shores

Our Duct Sealing in Clear Lake Shores crew is the same team that handles work across the Houston-Galveston Bay region, including Houston, San Antonio, Dallas, and Fort Worth. If you have a second home or rental property in one of those markets, we can coordinate the same written pricing and 365-Day Done Right Promise there. Each Hollis location operates independently under The Garrison Standard, so you’re working with local crews who know their territory, not a centralized call center guessing at drive times.

FAQs About Duct Sealing in Clear Lake Shores