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 Camp Pendleton South
Duct sealing in Camp Pendleton South typically runs $450 – $1,200 for a whole-home system, and most jobs are completed in a single visit once base access is approved. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our Duct Sealing crews work with Lincoln Military Housing schedules every week. Dispatch is coordinated from our San Diego office, but our techs are on Camp Pendleton South regularly during PCS season, handling the tight turnarounds between move-out and move-in. If you’re reporting weak airflow, dust streaks at your registers, or rooms that never reach temperature, call (361) 326-5060. We’ll give you a written price before any work starts, and every seal is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Camp Pendleton South’s Preferred Duct Sealing Company
We’ve been working in Camp Pendleton South long enough to know the difference between a standard civilian job and a base housing turnover. Our techs understand Lincoln Military Housing protocols, carry the documentation for federal-land access, and arrive inside the quoted window. Background-checked and uniformed, they show up with professional-grade equipment from Nikro and Abatement Technologies, not hardware-store gear.
Our reputation here is built on meeting move-in deadlines. When a family is scheduled to occupy a unit on Friday, the ductwork has to be sealed and verified by Thursday. We price every job in writing before touching the system, and our 365-Day Done Right Promise means if a seal fails within a year, we return and make it right at no charge, including a free second visit. That’s The Garrison Standard, and it’s how we operate in Camp Pendleton South and every community we serve.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
Duct Repair in Camp Pendleton South
Duct Repair in Camp Pendleton South usually means fixing the crushed, disconnected, or deteriorated flexible ductwork found in military housing built from the 1970s through the 2000s. These systems still “run” even when they’re leaking badly, so the damage hides in plain sight until someone notices weak airflow in the back bedrooms or dust collecting at the register edges. A typical duct repair in Camp Pendleton South runs $180 – $550 depending on access, material length, and whether we’re working behind an air handler in a tight utility closet.
Crushed Flex Runs Behind Air Handlers
In the duplexes and triplexes around Wire Mountain and San Onofre, we regularly find flex duct that has been compressed by storage items, maintenance activity, or decades of vibration. The system pushes air, but half of it never reaches the rooms. We cut out the damaged section, install new insulated flex with proper support straps, and seal every joint with mastic and mesh.
Disconnected Supply Ducts in Attics and Crawlspaces
Original duct straps fail. Ducts sag, separate at the collar, and dump conditioned air into the crawlspace or attic. Our techs verify the reconnect with a static pressure check and blower motor amp draw to confirm the system is moving the volume it was designed for.
Air Duct Sealing in Camp Pendleton South
Air Duct Sealing in Camp Pendleton South addresses the cumulative leakage at joints, collars, and register boots that develops in older central HVAC systems, especially the flexible ductwork common in base housing. Even small gaps add up. A system leaking 20% of its airflow works harder, runs longer, and still leaves rooms uncomfortable. In Camp Pendleton South’s moderate coastal climate, that means higher heating bills in winter and ineffective ventilation year-round. Air duct sealing here typically costs $450 – $1,200 for a whole-home system, with smaller apartment-style units toward the lower end and larger duplexes with complex attic runs toward the higher end.
Mastic and Mesh Sealing for Permanent Joints
We don’t use tape as a primary sealant. Tape dries, cracks, and fails. We brush on water-based duct mastic reinforced with fiberglass mesh at every joint and collar, creating a flexible, durable seal that moves with the ductwork. For metal connections, we add mechanical fasteners before the mastic goes on.
Post-Seal Verification with Static Pressure Testing
Every sealing job gets verified. We measure static pressure before and after, and we run a camera where access allows. If the numbers don’t improve, we find the leak we missed. No guesswork, no “that should be better.” Written results, written price, written guarantee.
Trusted Brands We Service in Camp Pendleton South
Our crews carry professional-grade equipment from Nikro, Honeywell, and Abatement Technologies, the same tools used in commercial and healthcare settings. For filtration upgrades after sealing, we stock Aprilaire media cleaners and Honeywell electronic air cleaners with fast turnaround for Camp Pendleton South customers. We don’t source parts from big-box retailers. When a sealing job reveals a failed register boot or deteriorated flex duct, we replace it with material rated for the application, not a temporary fix that fails before the next PCS cycle.
Common Duct Sealing Problems We See in Camp Pendleton South Homes
- Crushed or disconnected flex runs in 1970s – 2000s housing stock. The flexible ductwork in Wire Mountain and San Onofre duplexes was never designed to last forty years. We find runs compressed behind water heaters, sagging off failed straps, or completely separated at the air handler collar. The system still runs, but the air goes nowhere useful.
- Mold and mildew inside duct liners from coastal marine-layer humidity. Camp Pendleton South’s ocean proximity means ducts stay damp inside, especially in spring and early summer. Sealing over contaminated ductwork traps that moisture and makes the problem worse. We inspect with a camera first, and if we find biological growth, we recommend source removal and HEPA filtration before any sealing begins.
- Leaky register boots in apartment-style units with drywall returns. The connection between the duct and the wall register is often unsealed in older construction. Conditioned air leaks into the wall cavity, creating dust streaks on the ceiling and uneven temperatures. We pull the register, seal the boot to the drywall with mastic, and reinstall.
- Rushed post-PCS sealing jobs that skipped verification. During peak season, some crews seal what they can reach and skip the camera or pressure test. We find their leaks on the next turnover. Our protocol requires negative pressure setup during the work and post-seal verification before we sign off.
Pricing for Duct Sealing in Camp Pendleton South, CA
A typical duct sealing job in Camp Pendleton South runs $450 – $1,200 for a complete whole-home system. Smaller apartment-style units with simple trunk-and-branch layouts usually fall in the $450 – $700 range. Larger duplexes with attic runs, multiple air handlers, or extensive flex duct replacement can reach $900 – $1,200. Duct repair for isolated damage, such as a single crushed run or disconnected supply, typically costs $180 – $550.
What moves the price: access difficulty (crawlspace versus utility closet), length of damaged duct requiring replacement, whether mold remediation must precede sealing, and the number of registers and return boots involved. We do not price per vent. We quote one flat price per system, agreed in writing before work starts. That price does not change when our van is in your driveway.
Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Camp Pendleton South
Our Duct Sealing in Camp Pendleton South crews also handle jobs across Southern and Northern California, including Los Angeles, San Diego, San Jose, and San Francisco. Each location operates under The Garrison Standard with independently owned teams, the same written pricing, and the same 365-Day Done Right Promise.
Serving Camp Pendleton South, CA - Our Local Coverage Area
We’re based in the Camp Pendleton South 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 Camp Pendleton South
Yes, but the work order must come from Lincoln Military Housing or an approved property management contact. We cannot perform duct sealing in Camp Pendleton South base housing on a direct homeowner request without proper authorization, since the housing office controls vendor access and move schedules. If you’re a tenant with airflow concerns, report it through your housing office and request Hollis by name. Call (361) 326-5060 if your housing coordinator needs our credentials.
Housing built or renovated from the 1970s through the 2000s used flexible ductwork with shorter expected lifespans, and decades of vibration, storage compression, and strap failure have taken their toll. Newer construction uses tighter duct standards and better materials. In Camp Pendleton South, we see original flex runs in the Wire Mountain and San Onofre areas that have never been inspected, with leakage rates of 25% or higher. Sealing restores performance without replacing the entire system.
Yes. The coastal humidity promotes mold and mildew growth inside duct liners, especially in spring and early summer when the marine layer is thickest. Sealing over biologically contaminated ductwork traps moisture and accelerates deterioration. We always camera-inspect first in Camp Pendleton South, and if we find growth, we clean with HEPA-contained equipment and apply appropriate treatments before any mastic goes on. Skipping this step is a shortcut we don’t take.
Demand spikes from May through September as thousands of military families move in and out, creating tight windows between occupants. The real bottleneck in Camp Pendleton South is not finding a contractor but coordinating base access approvals and meeting Lincoln Military Housing’s turnover deadlines. We schedule PCS-season jobs with buffer time built in, and our San Diego dispatch team handles the coordination directly with housing offices. Book early if your move-out inspection is approaching.
It fixes the conditioned air you’re paying for that never reaches your rooms. Leaky joints, disconnected collars, and unsealed register boots dump heated or cooled air into crawlspaces, attics, and wall cavities. After sealing, rooms reach temperature faster, the system cycles less, and dust streaks at registers diminish. We verify the improvement with static pressure testing and provide written results. If the numbers don’t show improvement, we keep looking until we find the leak.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Camp Pendleton South since 2004.




Before
After
Before
After
Before
After