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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After
Before
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Before
AfterFast, Reliable Duct Sealing Across Mentone
Duct sealing in Mentone typically runs $450 – $1,200 for a whole-home system, depending on duct accessibility and the extent of leakage found. Most jobs take a half day to complete, and we schedule them within a few days of your call, not weeks out. We’re familiar with the older ranch homes along Crafton Avenue and the newer builds up toward Mill Creek Road, so we know what to expect before we arrive.
Our crews dispatch from the Inland Empire office and carry mastic sealant, metal-backed tape, and aerosol-based duct sealing equipment for the full range of what Mentone homes need. Whether you’re in the original 1940s tracts near Mentone Boulevard or a custom home off Oak Glen Road, we price the work in writing before touching anything. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Mentone’s Preferred Duct Sealing Company
We’ve been serving the Inland Empire since 2004, and Mentone’s mix of aging ranch houses and newer hillside builds is familiar territory for our technicians. Roy Castellanos built this operation on The Garrison Standard: arrive inside the window, price in writing, complete the job by the book, and leave the site clean. That standard travels with every crew that heads up the 38 toward Mentone.
Our technicians are background-checked and uniformed. You know who’s arriving before they knock. The price we write down before work starts is the price you pay. No add-ons at the door, no per-vent surprises. Every duct sealing job carries our 365-Day Done Right Promise: if the seal fails or the leak returns within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday to get on the schedule.
Duct Repair in Mentone
Duct Repair in Mentone usually means fixing collapsed flex runs, patching rodent damage in crawl spaces, or replacing rusted galvanized sections in homes built before 1980. Most repairs in Mentone fall between $280 and $650, with larger sectional replacements reaching $800 – $1,100 if we need to open walls or access tight attic spaces. We see a lot of original ductwork in the ranch homes south of Mentone Boulevard that has simply reached the end of its service life.
Collapsed and Disconnected Runs
Spring Santa Ana winds and summer heat cycles loosen tape and sag flex duct in Mentone’s older crawl spaces. We reconnect runs, support them properly, and seal the joints so conditioned air actually reaches the rooms you’re paying to cool.
Rodent and Moisture Damage
Mentone’s semi-arid climate doesn’t eliminate moisture problems in crawl spaces and attics. Condensation on cool duct surfaces attracts rodents, and we’ve patched plenty of chewed flex duct in homes near the Santa Ana River wash. We repair the damage and recommend sealing strategies that keep it from happening again.
Air Duct Sealing in Mentone
Air Duct Sealing in Mentone addresses the conditioned air you’re losing to gaps, joints, and seams in your duct system. In a typical Mentone home, 20 – 30% of heated or cooled air leaks into attics, crawl spaces, or wall cavities before it ever reaches a vent. Our sealing jobs run $450 – $1,200 depending on system size and access, and most homeowners see immediate improvements in room-to-room temperature balance and utility bills.
Mastic and Metal-Backed Tape Sealing
For accessible ductwork in Mentone’s open crawl spaces and unfinished attics, we brush on duct mastic, a thick, flexible sealant that outlasts standard tape by decades. We follow with metal-backed tape at joints for a mechanical backup. This is the standard for homes with galvanized or early flex systems.
Aerosol Duct Sealing Technology
For newer homes with sealed ductwork that’s leaking from the inside, or for systems where access is limited, we use aerosol-based sealing. The equipment pressurizes the duct system and atomizes sealant particles that bond to leak edges from within. It’s particularly effective in the custom homes on Mentone’s east side where tearing into finished spaces isn’t practical.
Trusted Brands We Service in Mentone
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies, and our sealing crews carry Nikro negative-air equipment for pre- and post-sealing pressure testing. For Mentone homeowners, this means no waiting on special orders for standard components. If your system uses Honeywell media filters or an Aprilaire whole-house purifier, we can service the filtration side while we’re sealing the ductwork. Most parts are on the van, and what isn’t we can typically source next-day through our Inland Empire suppliers. We also handle Air Duct Cleaning in Mentone and Dryer Vent Cleaning in Mentone using the same professional-grade equipment.
Common Duct Sealing Problems We See in Mentone Homes
- Original galvanized duct with failed seams. Homes built in the 1950s and 1960s along Crafton Avenue and Mentone Boulevard often have rigid galvanized duct where the longitudinal seams have opened. We seal with mastic or replace sections where corrosion has made sealing insufficient.
- Flex duct sagging in crawl spaces. Mentone’s spring wind events and temperature swings cause flex duct to droop and disconnect over time. We support, reconnect, and seal these runs so air flows properly to every register.
- Smoke and ash intrusion degrading seals. After wildfire activity in the San Bernardino National Forest, fine ash works its way into duct systems and accelerates deterioration of tape and mastic. We inspect and reseal systems that have survived multiple fire seasons.
- Additions with unsealed connections. Many Mentone ranch homes have had room additions where the new duct was connected but never properly sealed to the original trunk. We find these leaks with pressure testing and seal them permanently.
Pricing for Duct Sealing in Mentone, CA
A typical whole-home duct sealing job in Mentone runs $450 – $1,200. Smaller homes with accessible crawl spaces and minor leakage start near the lower end. Larger homes, systems with extensive flex duct replacement, or jobs requiring aerosol sealing in finished spaces trend toward the higher range. We do not price per vent or offer teaser rates that change once we’re inside. One flat price per system, agreed in writing before work starts.
What moves the price: system size, duct accessibility (crawl space vs. finished attic), extent of leakage found during pressure testing, and whether we’re sealing existing duct or replacing damaged sections first. We perform a pre-seal pressure test on every job so you see the before numbers, and a post-seal test so you see the improvement. Call (361) 326-5060 for a free estimate. Estimates include the pressure test at no charge.
We Also Serve Cities Near Mentone
Our crews regularly work in Mentone and the surrounding communities: Redlands to the west, Yucaipa to the north, Highland to the northwest, and Calimesa to the east. If you’re in any of these areas and need Duct Sealing, the same pricing standards and 365-Day Done Right Promise apply.
Serving Mentone, CA - Our Local Coverage Area
We’re based in the Mentone 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 Mentone
We typically schedule duct sealing in Mentone within 3 – 5 business days of your call. Emergency duct repairs, such as complete disconnections or no-air situations, we prioritize sooner. Call (361) 326-5060 to check current availability.
Yes. We work throughout Mentone, from the older ranch homes near Mentone Boulevard and Crafton Avenue to the newer custom builds off Oak Glen Road and Mill Creek Road. Our technicians know the local housing stock and what duct systems each era typically contains.
Pricing is consistent across our Inland Empire service area, including Mentone, Redlands, Yucaipa, Highland, and Calimesa. What affects your price is your specific system, not your ZIP code. A 1,200-square-foot ranch in Mentone costs the same to seal as an identical home in Redlands.
If any sealed joint fails, any leak returns, or any repair we performed fails within 365 days of completion, we return and make it right at no charge. This includes a free second visit, parts, and labor. The promise is written on every job, not implied.
We pressure-test your system before and after sealing and show you the numbers. You’ll see the reduction in leakage in CFM, cubic feet per minute. We also note temperature balance improvements room to room. If you want visual confirmation, we can provide before-and-after photos of accessible ductwork. Call (361) 326-5060 to schedule your free estimate and pressure test.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Mentone and the Inland Empire since 2004.