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 Temecula
Duct sealing in Temecula typically runs $400 – $900 for a whole-home system, and most jobs are scheduled within a few business days. We’re the Duct Sealing crew serving Temecula from our Inland Empire office, and we know the flex-duct headaches that hide in 2000s-era tracts from Wolf Creek to Paseo del Sol. Call (361) 326-5060 for a free estimate with a written price before any work starts.
We’ve been crawling Temecula attics since 2004. We know the difference between a tract home built in 2003 with original flex duct and a retrofit job near Old Town where someone sized a new air handler to old galvanized runs. That local knowledge changes what we bring on the van and how we quote the job. No guessing. No bait-and-switch. Just a written price, a 365-Day Done Right Promise, and technicians who arrive uniformed, background-checked, and on time.
Why Hollis Air Duct Cleaning Is Temecula’s Preferred Duct Sealing Company
Our reputation in Temecula is built on showing up when we said we would and leaving the site clean. That’s The Garrison Standard, and it applies to every job we dispatch to Temecula, Murrieta, or Fallbrook. We don’t compete on the lowest teaser price. We compete on discipline: written price, written guarantee, and a free second visit if the repair fails within a year.
Homeowners in Temecula call us back because our technicians explain what they found in plain terms, show before-and-after photos of their own ducts, and never push a sale. Background-checked, uniformed crews. Phones answered by a live person, 24/7. Equipment from Rotobrush, Nikro, and Guardsman – the same tools commercial crews use, not hardware-store gear.
Dispatch and scheduling for Temecula are coordinated from our Inland Empire office, with crews serving the city locally. We know the Santa Ana wind patterns that drive dust into leaky returns near the foothills, and we know which Temecula neighborhoods have the 2000s flex-duct construction that fails at the elbows. That local knowledge saves time on the job and saves you money on the quote.
Duct Repair in Temecula
Duct Repair in Temecula usually starts with a camera inspection after we hear about hot rooms, dust storms from the registers, or a utility bill that jumped for no clear reason. In this city, the problem is rarely a single dramatic tear. It’s crushed flex runs pinched by framing, disconnected supply tees at the air handler plenum, or elbow joints that were taped instead of mastic-sealed when the home was built. A typical duct repair in Temecula runs $250 – $600 depending on how many runs need attention and whether we’re replacing torn flex sections or reconnecting what’s there.
Crushed and Disconnected Runs
We find these constantly in Temecula’s 2000s tracts. A joist pinches a flex duct. A supply tee pulls loose from the plenum. The homeowner feels it as a hot room upstairs or a vent that barely blows. We reconnect, support, and seal – then pressure-test to confirm.
Brittle Flex Duct Tears
Twenty years of attic heat cycling turns flexible duct brittle. Cleaning agitation can tear it before sealing is even attempted. We replace compromised sections with Guardsman-insulated flex, then seal the new connections properly with mastic, not tape.
Air Duct Sealing in Temecula
Air Duct Sealing in Temecula is most often a joint-and-connection hunt, not a whole-system wrap. In Wolf Creek and Paseo del Sol, builders installed oversized flexible duct with dozens of elbows. The leaks live at those elbows and at the air handler plenum connection, not in straight runs. We seal with mastic, verify with a pressure test, and show you the before-and-after. Typical air duct sealing in Temecula costs $400 – $900 for a whole-home system, with larger homes or multiple repair points toward the higher end.
Mastic Sealing at Elbows and Plenums
Tape fails. Mastic doesn’t. We brush mastic onto every elbow joint and plenum connection, then let it cure before pressurizing the system to verify zero leakage. In Temecula’s climate, that mastic has to survive 140°F attic summers. We use the right product for the job.
Pressure Testing and Verification
After sealing, we run a duct blaster or static pressure test to prove the system holds. You get the numbers. If it doesn’t pass, we find the leak and fix it. No guesswork, no “trust us, it’s better.”
Trusted Brands We Service in Temecula
We stock parts and materials from Rotobrush, Nikro, Abatement Technologies, Aprilaire, and Guardsman for Temecula jobs. That means faster turnaround and no waiting on a parts run to Riverside or San Diego. Guardsman-insulated flex duct for replacements. Aprilaire filtration upgrades when we’re already in the system. Rotobrush rotary tools for the cleaning that often precedes sealing. We don’t show up hoping we have what we need. We show up with it.
Common Duct Sealing Problems We See in Temecula Homes
- Builder-grade tape failing at flex elbows. In Wolf Creek and Paseo del Sol, 2000s construction used tape at elbow joints and plenum connections. After two decades of attic heat cycling, that tape dries and peels. The leak is invisible from below but shows up as dust on registers and uneven temperatures room to room.
- Santa Ana ash intrusion through leaky returns. After a wind event, we routinely find layers of fine ash coating duct interiors in homes near the Temecula foothills and winery areas. That ash enters through gaps in return ductwork, then circulates through the living space. Sealing the returns stops the intrusion at the source.
- Moisture and mold from winter rain plus summer AC. Temecula’s winter rains introduce moisture through the same gaps that let in dust. When summer hits and the AC runs hard, that moisture feeds mold growth in ductwork. Sealing eliminates the entry points.
- Mismatched duct sizes from Old Town retrofits. Older homes near Old Town Temecula often have retrofitted HVAC systems where a new air handler connects to original ductwork sized for a smaller unit. Sealing a small run into a larger plenum without a proper transition just relocates the leak. We fabricate transitions so the seal actually holds.
Pricing for Duct Sealing in Temecula, CA
Duct sealing in Temecula runs $400 – $900 for a typical whole-home system. Single repairs or partial sealing start around $250. What moves the price: how many runs need attention, whether we’re replacing torn flex sections, and whether the job requires fabricated transitions for mismatched duct sizes.
We give you one flat price per system, agreed in writing before any work starts. No per-vent pricing. No add-ons at the door. The price we write down is the price you pay. Every job includes before-and-after photos of your own ducts and verification testing to prove the seal holds.
Call (361) 326-5060 for a free estimate. We’ll ask about your home’s age, any hot rooms or weak vents, and whether you’ve noticed dust or ash after wind events. That lets us quote accurately before we arrive.
We Also Serve Cities Near Temecula
Our crews regularly work in Temecula and the surrounding communities: Murrieta, Fallbrook, Wildomar, and Menifee. Same written pricing, same 365-Day Done Right Promise, same background-checked technicians at every stop.
Serving Temecula, CA - Our Local Coverage Area
We’re based in the Temecula 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 Temecula
If you have hot rooms, weak airflow at specific registers, or a utility bill that spiked without explanation, you likely need repair or sealing, not just cleaning. In Wolf Creek homes, we typically find crushed flex runs or disconnected supply tees causing these symptoms. A camera inspection finds the problem in about 20 minutes. Call (361) 326-5060 to schedule – estimates are free.
Yes, sealing the return side of your duct system stops the dust and ash intrusion that happens during Santa Ana wind events. We see this pattern constantly in homes near the Temecula foothills and winery areas. After sealing, homeowners report less dust on surfaces and fewer filter changes. Call (361) 326-5060 for an inspection if you’ve noticed ash or dust after recent wind events.
It is worth it if the duct is structurally intact, which we verify with a camera inspection first. Many 2000s Temecula tracts have duct that is brittle but not destroyed. Sealing the joints and replacing isolated torn sections costs far less than full duct replacement and delivers immediate efficiency gains. Call (361) 326-5060 and we’ll tell you honestly whether your duct is a seal candidate or past saving.
Our technicians arrive in the quoted window, protect your floors, and inspect the duct with a camera to confirm the plan. We seal elbow joints and plenum connections with mastic, replace any torn flex with Guardsman-insulated duct, and run a pressure test to verify. Most Temecula jobs take 3 – 5 hours. You get before-and-after photos and written results before we leave. Call (361) 326-5060 to book.
Yes, but it requires fabricated transitions rather than simple sealing. A small duct forced into a larger plenum will leak at the joint no matter how much mastic you apply. We build proper transitions so the connection is sound, then seal and test. We’ve done this on multiple Old Town Temecula retrofits. Call (361) 326-5060 and we’ll inspect the fit before quoting.
A homeowner in Paseo del Sol called us after a $90 August electric bill jump they couldn’t explain, so we put a camera inspection down the return and found three crushed flex runs pinched by a joist and a disconnected supply tee in the attic. We reconnected the tee at the air handler plenum, sealed the elbow joints with mastic, replaced two torn flex sections with Guardsman-insulated duct, then verified with a pressure test that no leaks remained. Their next month’s bill dropped and the dust settling on the registers stopped coming back within a week.
In Temecula’s 2000s-era master-planned tracts like Wolf Creek and Paseo del Sol, builders installed oversized flexible duct runs with dozens of elbows, so leaks hide at the elbow joints and at the air handler plenum connection rather than in straight runs. That means a duct sealing call here is usually a joint-and-connection hunt, not a whole-system wrap. A generalist who doesn’t know this pattern will quote you for work you don’t need and miss the work you do.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Temecula and the Inland Empire since 2004.