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.
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AfterFast, Reliable Duct Sealing Across Hemet
We’re the crew Hollis Air Duct Cleaning dispatches from our Inland Empire office to handle duct sealing work in Hemet, and we know the San Jacinto Valley well enough to spot trouble before we open the attic hatch. When you call (361) 326-5060, a live person answers, schedules you into a real time window, and sends background-checked, uniformed technicians who arrive with the right tools for Hemet’s specific housing stock. Most of the homes we seal here are original to the 1970s through 1990s tract builds or 55+ communities off Florida Avenue and State Street, with ductwork that’s been baking in attics that hit 140°F for decades. That local knowledge matters because a seal that holds up in coastal Orange County often fails here within a season.
Why Hollis Air Duct Cleaning Is Hemet’s Preferred Duct Sealing Company
Hollis has been part of the Garrison Partners family since 2004, and our Duct Sealing crews have built a reputation in Hemet by showing up inside the quoted window and pricing every job in writing before touching a tool. We don’t compete on teaser coupons or per-vent bait prices. We compete on discipline: written price, written guarantee, work done by The Garrison Standard.
Our technicians are background-checked and uniformed, and every duct sealing job carries the 365-Day Done Right Promise. If a seal fails or a connection opens up 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 printed on every invoice.
Dispatch and scheduling for Hemet run through our Riverside-San Bernardino office, but the crews serving you live and work in the Inland Empire. They know the difference between a 1978 ranch near Simpson Park and a 1990s mobile home off Sanderson Avenue, and they bring equipment rated for both. Calls are answered by a live person 24 hours a day, 7 days a week, no voicemail loops.
HVAC Duct Sealing in Hemet
HVAC Duct Sealing in Hemet is the process of closing gaps, cracks, and disconnected joints in your home’s forced-air system so conditioned air reaches the rooms it’s supposed to reach instead of leaking into your attic or crawl space. In Hemet’s climate, this matters more than most places. Your system runs 8-9 months a year against 100°F+ heat, and every cubic foot of cooled air that escapes is a cubic foot your compressor has to replace. Typical HVAC duct sealing for a whole system in Hemet runs $850 – $1,800 depending on accessibility, duct material, and how many runs need attention. We inspect first with a camera, quote in writing, and seal only after we’ve removed any debris that would trap contamination inside.
Attic Sealing in Extreme Heat
Hemet’s low-pitch roofs and unvented attics cook ductwork past 140°F in July and August. Cheap foil tape turns brittle and peels within a single season. We use mastic rated for high-temp cycling, reinforced with mesh at stress points, because a seal that looks fine in March fails by the first heat wave if it’s not specified for this environment.
Return Duct Sealing Before the Blower
Return leaks are worse than supply leaks. They pull hot attic air and agricultural dust directly across your filter and into your blower motor. In Hemet, where valley dust is a constant, an unsealed return plenum can coat your evaporator coil and drop system efficiency by 20% or more. We seal returns first, always.
Duct Repair in Hemet
Duct Repair in Hemet addresses the physical damage that sealing alone won’t fix: crushed flexible duct, separated fiberboard plenums, corroded metal connections, and pest damage in attic runs. Many Hemet homes built in the 1980s and 1990s use original fiberboard trunk lines that swell, soften, and delaminate after decades of attic heat exposure. Repair ranges from $400 for a single damaged run to $2,200 for partial trunk replacement with metal or insulated flex. We photograph the damage, show you before we quote, and never recommend replacement when a solid repair will last.
Fiberboard Trunk Restoration
Original fiberboard trunks in Hemet’s 55+ communities are often cracked at the air handler connection or sagging at supports. We can rebuild the connection with metal transition pieces and seal the assembly properly, saving the cost of full trunk replacement when the board itself is still structurally sound.
Mobile Home Duct Repair
Hemet has significant mobile home stock, especially in communities off Florida Avenue and Stetson Avenue. These systems use shallow belly-duct runs that collect moisture and pest debris. We repair separated crossover ducts and seal belly wraps without tearing the entire underbelly apart.
Trusted Brands We Service in Hemet
Our vans carry professional-grade equipment and materials from Nikro, Honeywell, and Aprilaire, the same brands commercial HVAC contractors specify for institutional work. For Hemet customers, this means we don’t run to a supply house mid-job for parts that should be on the truck. Our Nikro negative-air machines and HEPA filtration protect your home during duct sealing work, and our Honeywell and Aprilaire filtration products integrate with systems common in Hemet’s 1980s and 1990s housing stock. We source mastic, mesh, and mechanical fasteners rated for the thermal cycling your attic will put them through. Fast turnaround on parts means we complete most duct sealing and repair jobs in a single visit.
Common Duct Sealing Problems We See in Hemet Homes
- Seasonal seal failure from attic heat. Hemet’s attics exceed 140°F regularly in summer. Standard hardware-store foil tape becomes brittle and releases within months. We find failed seals on nearly every home that hasn’t been serviced since original construction.
- Agricultural dust infiltration through return leaks. The San Jacinto Valley produces fine, persistent dust that enters through gaps in return ductwork and accumulates on blower motors and evaporator coils. Sealing returns without first removing that debris traps contamination and raises static pressure.
- Pest debris blocking airflow in 55+ community homes. In Hemet’s retirement tracts, decades of neglected maintenance mean we regularly find rodent nesting material, insect casings, and insulation fibers packed at register connections. Sealing over this traps it in your breathing air.
- Original fiberboard ductwork delaminating at seams. Hemet’s affordable housing stock used fiberboard for cost savings, but the material swells and separates after 20-30 years of heat cycling. Tape won’t hold; the seam needs mechanical reinforcement and proper mastic application.
Pricing for Duct Sealing in Hemet, CA
Whole-system duct sealing in Hemet typically runs $850 – $1,800. Duct repair for localized damage ranges $400 – $2,200. What moves you within that range: how many duct runs serve your home, whether the attic has safe working clearance, if your ductwork is accessible metal or buried flexible, and whether we need to remove significant debris before sealing. We do not quote per-vent pricing. We inspect your system with a camera, identify every leak and damaged section, and give you one flat price per system agreed in writing before work starts. That price does not move at the door. Estimates are free, and we show you the camera footage so you understand what we’re quoting and why. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hemet
Our Duct Sealing in Hemet crews also handle jobs in San Jacinto, Homeland, Nuevo, and Menifee. The same Inland Empire dispatch, the same written pricing, the same 365-Day Done Right Promise applies across the San Jacinto Valley.
Serving Hemet, CA - Our Local Coverage Area
We’re based in the Hemet 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 Hemet
Hemet’s extreme attic heat, regularly exceeding 140°F, destroys standard sealing materials within a single season. We use high-temp mastic and mechanical reinforcement rated for thermal cycling, because foil tape that holds in March will crack and peel by July. Call (361) 326-5060 and we’ll show you the difference on camera.
Most 1980s Hemet homes need sealing and targeted repair, not full replacement. Original fiberboard trunks can often be restored at connection points if the board itself hasn’t collapsed. We camera-inspect first and quote both options honestly. Call (361) 326-5060 for a free estimate with photos.
Sealing stops dust from entering through leaks, but only if we remove existing debris first. In Hemet, where agricultural dust is constant, we always source-remove contamination with HEPA-filtered negative-air equipment before sealing. Sealing over debris traps it inside. Call (361) 326-5060 and we’ll show you what’s in your ducts before we quote.
Yes. We schedule Hemet’s 55+ communities with arrival windows we honor, technicians who explain the work before starting, and site protection so we leave no mess. The job typically takes 3-5 hours; we coordinate with you on timing that fits your routine. Call (361) 326-5060 to arrange a window that works.
Realistic results: more even room temperatures, reduced dust accumulation on surfaces, less blower noise, and lower peak summer energy use. We do not promise miracle cures. If your ductwork is structurally damaged or your HVAC unit is undersized, sealing helps but won’t fix those problems. We tell you the limits before we start. Call (361) 326-5060 for an honest assessment.
In Hemet’s 55+ communities, duct sealing is often as much about stopping pest and dust intrusion as it is about saving energy. Many residents keep the thermostat set high and the blower running nearly year-round, so every unsealed joint becomes a permanent dust leak. We’ve sealed ducts in tracts off Florida Avenue where the dust film on furniture disappeared within two weeks of proper sealing, and we’ve found homes where the real problem was a cracked return pulling 140°F attic air straight across the blower. The work is basic system preservation here, not a luxury upgrade.
In the 55+ tract just off Florida Avenue, our tech found the 1990s fiberboard supply and return ducts cracked wide open at the air handler; hedges of lint and pest debris were blocking the return, so we used agitation tools and HEPA filtration to pull the mess out before sealing every seam with mastic and mesh. The homeowner noticed the dust film on her furniture disappeared within two weeks and the system stopped short-cycling on 100°F afternoons.
Ready to stop losing cooled air to your attic? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, no-pressure estimate. We’ll camera-inspect your Hemet home’s ductwork, show you what we find, and give you a written price before any work starts. Every job is backed by our 365-Day Done Right Promise: if it’s not right, we make it right, at no charge.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hemet and the Inland Empire.