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.
Fast, Reliable Duct Sealing Across Nevada
Duct sealing in Nevada, TX typically costs $350 – $850 for a whole-home seal depending on system size and accessibility, and most jobs are scheduled within a few days of your call. We dispatch crews from our Dallas-Fort Worth scheduling office and route them directly to Nevada homes along FM 6 and the connecting county roads that serve this growing Collin County community.
We’ve worked in enough Nevada homes to know the pattern. You run your AC hard from May through September, utility bills climb every summer, and rooms toward the back of the house never cool properly. The culprit is often duct leakage, not your compressor. In Nevada’s humid climate, every gap in your ductwork pulls hot, moist crawlspace air into the system. Your unit works harder, your air feels sticky, and mold spores circulate through the vents. Our Duct Sealing team finds those gaps, seals them with mastic and metal-backed tape, and tests the results with a duct blaster so you see the improvement in writing.
Call (361) 326-5060 for a free estimate. We’ll give you a written price before any work starts, and every seal carries our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Nevada’s Preferred Duct Sealing Company
Nevada sits on the edge of the Blackland Prairie where clay soil swells with spring rains and shrinks by August. That ground movement separates duct joints in pier-and-beam homes, especially in older neighborhoods near downtown and along the original ranch parcels east of town. We’ve crawled enough Nevada crawlspaces to recognize the signs: rusted galvanized steel with gaps at the elbows, flexible duct pulled loose from boots, and fiberglass insulation soaked with condensation. Our technicians arrive uniformed, background-checked, and equipped with Nikro negative-air machines and professional-grade sealing materials. The price we write down is the price you pay. If the seal fails within a year, we come back at no charge. That’s not a slogan; it’s written on every Nevada job sheet.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues. When you’re ready to stop overcooling your crawlspace, we’re ready to answer.
HVAC Duct Sealing in Nevada
HVAC Duct Sealing in Nevada addresses the specific leaks and pressure losses that develop in duct systems exposed to this region’s shifting clay soils and extreme cooling demand. The job involves pressurizing the duct system to locate leaks, sealing joints and connections with mastic compound and UL-181 rated foil tape, and verifying results with a post-seal pressure test. Nevada homeowners typically need this service when rooms heat unevenly, dust blows from registers, or summer electric bills spike despite normal thermostat settings. A typical whole-home duct seal in Nevada runs $350 – $850, with simpler single-zone repairs starting around $180 – $275.
How We Test Before We Seal
We start every Nevada job with a duct blaster test. This fan-and-pressure-gauge setup measures exactly how much air your system loses to the attic or crawlspace. Most Nevada homes we test leak 20 – 30% of conditioned air before sealing. After we finish, we test again and show you the written results. No guesswork, no “trust us, it’s better.”
Mastic vs. Tape: What We Use Where
Metal-backed tape works for small, accessible joints in conditioned spaces. Mastic, a thick brush-on sealant, fills larger gaps and irregular connections common in older Nevada pier-and-beam homes. We apply mastic to every joint we can reach in the crawlspace, then tape over it for mechanical reinforcement. This two-layer approach holds through Texas heat cycles and the vibration of continuous summer runtime.
Duct Repair in Nevada
Duct Repair in Nevada fixes the physical damage that sealing alone cannot address: crushed flexible duct, rusted-out galvanized steel sections, disconnected boots, and insulation that’s fallen away or grown mold. After heavy spring rains, the expansive clay soil swells and shifts, causing pier-and-beam homes to settle unevenly; technicians often find duct joints separated in the crawlspace, leading to leaks that pull in humid crawlspace air and reduce system efficiency. Repair costs in Nevada typically range from $200 – $450 for section replacement or reconnection, and $450 – $900 for more extensive rebuilds involving multiple runs or mold remediation. We also handle Air Duct Cleaning in Nevada and Dryer Vent Cleaning in Nevada if your system needs comprehensive attention.
When Repair Beats Replacement
A single disconnected 8-inch flex duct in a Nevada crawlspace takes an hour to reconnect and insulate properly. Replacing the entire system might run thousands. We repair what we can, replace what we must, and explain the difference before you decide. Written price, always, before any tool touches your ductwork.
Moldy Insulation Removal
Nevada’s 40 inches of annual rainfall and 95°F-plus summers create perfect conditions for mold inside duct insulation. When we find it, we remove the affected fiberglass, treat the metal with an antimicrobial, and reinstall with fresh, properly sealed insulation. We show you photos before and after. You’ll know the work happened because you’ll see it.
Trusted Brands We Service in Nevada
We stock sealing and filtration components from Honeywell, Aprilaire, and Abatement Technologies for Nevada homeowners, which means most repairs don’t wait on parts orders. Honeywell media filters and Aprilaire whole-home humidistats integrate directly with sealed duct systems to control the moisture that Nevada’s climate pushes indoors. Abatement Technologies HEPA filtration products capture the fine particulate that leaky ducts pull from crawlspaces and attics. Our technicians carry common duct diameters, boots, and collars on every Nevada truck. If your system needs something specialized, our Dallas-Fort Worth office coordinates same-day or next-morning delivery. We don’t make you wait a week for a fitting that should be standard.
Common Duct Sealing Problems We See in Nevada Homes
- Clay soil separation in pier-and-beam crawlspaces. Nevada’s expansive clay swells with spring moisture and contracts through summer drought. That cycle shifts piers, tilts beams, and pulls duct joints apart. We find 1 – 2 inch gaps at elbows and boots that have been leaking for years, hidden beneath insulation.
- Rusted galvanized steel in pre-1990 homes. Older Nevada neighborhoods still have original metal ductwork that corrodes from the inside out. Humid return air accelerates the rust until seams split. Sealing buys time, but section replacement is often the honest recommendation.
- Sagging flexible duct in newer slab homes. Flexible ductwork common in Nevada’s 2000s-era construction collapses under its own weight when supports fail, or tears where it contacts framing. Air flow drops, static pressure rises, and the compressor strains. We rehang, replace, and seal.
- Humidity-driven mold at leak points. Every gap in supply ductwork becomes a condensation site when 95°F, 70% humidity crawlspace air meets 55°F conditioned air. Mold follows. We seal the leak, remove contaminated insulation, and restore airflow so the surface dries.
Pricing for Duct Sealing in Nevada, TX
A typical whole-home duct seal in Nevada runs $350 – $850. Single-zone or partial-system repairs start at $180 – $275. Extensive repairs involving multiple section replacements, mold remediation, or hard-to-access crawlspaces can reach $900 – $1,400. What moves the price: system size (more zones, more linear feet), crawlspace height and condition, extent of existing damage, and whether we need to remove and replace insulation. We do not price per vent or per linear foot. We price per system, in writing, before work starts. One flat price. No add-ons at the door. You’ll get before-and-after photos of your own ducts and a written test result showing leakage reduction. Estimates are free. Call (361) 326-5060 and we’ll schedule a time that works.
We Also Serve Cities Near Nevada
Our crews route regularly to Nevada and the surrounding communities: Lavon to the southwest, Royse City to the west, Fate to the northwest, and Princeton to the north. Same written pricing, same 365-Day Done Right Promise, same live-answer scheduling for every town we serve.
Serving Nevada, TX - Our Local Coverage Area
We’re based in the Nevada 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 Nevada
Most Nevada appointments are scheduled within 2 – 4 business days, sometimes sooner depending on route consolidation from our Dallas-Fort Worth dispatch office. We do not promise same-day dispatch for duct sealing; it’s a scheduled job that requires proper crawlspace access and testing time. Call (361) 326-5060 for the next available opening.
Yes, we work throughout Nevada including the original downtown area, newer developments along FM 6, and the rural homestead parcels east of town. Pier-and-beam homes near the historic center and slab-on-grade construction in newer subdivisions each present different duct challenges, and we’ve handled both.
We do not classify duct sealing as an emergency service. A leaking duct is inefficient and uncomfortable, but it is not dangerous like a gas leak or electrical hazard. If your system has completely failed, we recommend calling an HVAC contractor first. Once the mechanical issue is resolved, we can seal and test the ductwork properly.
Nevada pricing sits in line with Collin County averages, slightly below Dallas proper due to lower travel time and parking constraints. A $450 seal in Nevada might run $550 – $650 in central Dallas. Rural properties with long driveways or limited crawlspace access can add $50 – $100. We quote your specific job in writing before any commitment.
Every Nevada duct seal is covered by our 365-Day Done Right Promise. If the seal fails, leaks recur, or workmanship proves defective within one year, we return and make it right at no charge, including a free second visit. The terms are written on your invoice, not implied. Call (361) 326-5060 to schedule your free estimate and get your written price.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Nevada and Collin County under The Garrison Standard since 2004.




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