Fast, Reliable Duct Repair & Sealing Across Clovis
Duct repair and sealing in Clovis typically costs $180-$650 depending on the scope, with most residential jobs completed in a single visit. Bellows Air Duct & Vent Co. of California has served the Clovis area for over 42 years, and our crew knows the specific challenges that San Joaquin Valley homes face. We’re familiar with the 93619 corridor’s mid-2000s tract homes, the aging ranch properties near Old Town Clovis in 93612, and the unique wear that triple-digit summers and tule fog winters put on duct systems. Call (855) 401-6006 for upfront pricing and a free estimate - we’ll be there when we say.
Why Bellows Air Duct & Vent Co. of California Is Clovis’s Preferred Duct Repair & Sealing Company
Our reputation in Clovis was built one job at a time, starting back in 1984. Homeowners from the 93611 neighborhoods near Sierra Vista Mall to the newer developments off Temperance Avenue in 93619 call us because we’ve earned their trust through consistent work and honest pricing. Roger Castañeda leads our operation with a simple standard: every job gets camera-inspected before and after, and every customer sees their price before a single tool is lifted.
We answer our phones live, 24 hours a day. Not a voicemail system. Not an app. A real person who can dispatch a background-checked, uniformed technician to your Clovis home. Most repairs are completed in one visit, and our 90-Day Done Right Promise means if something isn’t right, we return at no charge with no paperwork required.
Our response time to Clovis is typically same-day or next-day, because we maintain our fleet and parts inventory to serve the central San Joaquin Valley without delay. We know which Clovis neighborhoods have the original flex-duct installations from the 2005-2008 building boom, and we stock the mastic sealant, metal repair sleeves, and insulation materials those homes need.
Our Duct Repair & Sealing Services in Clovis
Flex Duct Repair
The 93619 corridor in southeast Clovis contains thousands of tract homes built during the mid-2000s housing boom, now 15-20 years old, many still running on original flex-duct systems that have never been professionally cleaned or sealed. We recently sealed a flex-duct run in a 2006-built home near Temperance Ave in the 93619 corridor. The original duct tape had degraded in the attic’s 130°F summer heat, and our crew used Rotobrush equipment to remove construction debris and applied mastic sealant for a permanent airtight bond. Flex duct repair is the dominant job type we see in southeast Clovis, not repeat maintenance calls, because so many of these homes are experiencing their first professional duct service.
Mastic Sealant Application
Clovis’s triple-digit summers destroy ordinary duct tape. Attic temperatures in 93611, 93612, and 93619 regularly exceed 130°F, turning standard tape adhesive brittle and causing joints to separate. Mastic sealant is the only permanent solution we trust for Clovis conditions. We apply professional-grade mastic to every joint and connection, creating a flexible, heat-resistant bond that outlasts the seasonal temperature swings of the San Joaquin Valley. This is standard procedure on every duct sealing job we perform in Clovis - no upcharge, no option to skip it.
Air Leak Repair
Unsealed duct joints in Clovis homes can leak up to 30% of conditioned air into attics and crawl spaces. In a climate where your AC runs nearly continuously from June through September, that’s money lost every hour. We pressure-test duct systems to locate leaks, then seal them with mastic and reinforced mesh for structural integrity. For homes in the 93612 zip code near Old Town Clovis, where mid-century ranch homes have aging sheet-metal ductwork, air leak repair often reveals decades of accumulated valley dust and deteriorated original seals that have never been addressed.
Metal Duct Repair
Older neighborhoods closer to Old Town Clovis in 93612 include mid-century ranch homes with aging sheet-metal ductwork that has had decades to accumulate valley dust with no maintenance. These systems develop rust, separated seams, and collapsed sections that flex duct doesn’t experience. Our technicians carry metal repair sleeves, sheet-metal screws, and professional-grade sealants specifically for these older Clovis homes. Camera inspection before work begins lets us show you exactly what we’re repairing - no guesswork, no claims without proof.
Duct Insulation
Attic ductwork in Clovis loses efficiency through radiant heat gain all summer long. We install foil-faced insulation with proper vapor barriers, sized for the specific R-value requirements of San Joaquin Valley climate zones. Proper insulation reduces the thermal load on your HVAC system and helps maintain consistent temperatures room-to-room, which matters in Clovis homes where one side of the house can be 15 degrees hotter than the other during August afternoons.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Clovis
We repair and seal duct systems connected to equipment from Aprilaire, Abatement Technologies, and Rotobrush, and we stock common repair parts for these brands in our local warehouse. This means faster turnaround for Clovis homeowners - no waiting on shipping while your attic hits 140°F. Our technicians also work with Guardsman fittings and Honeywell zoning components when duct modifications are needed to balance airflow in multi-story Clovis homes. We specify the same brands that serious HVAC contractors use, because equipment quality matters when you’re sealing a system that needs to last another 20 years in valley conditions.
Common Duct Repair & Sealing Problems We See in Clovis Homes
- Duct tape failures on flex-duct connections in attics during triple-digit summers. The adhesive on standard duct tape breaks down after 3-5 years of Clovis attic heat, causing joints to separate and leak up to 30% of conditioned air. We find this in nearly every unsealed 2000s tract home we inspect in 93619.
- Tule fog humidity seeping through unsealed joints in older mid-century ranch homes in 93612. This dense, ground-hugging winter fog unique to the San Joaquin Valley floor introduces sustained moisture into duct systems, promoting mold colonization in insulation and degrading indoor air quality.
- Construction debris from original installation blocking registers in never-cleaned 2000s tract homes. Drywall dust, wood scraps, and packaging materials left in ducts during the mid-2000s building boom restrict airflow, force HVAC systems to work harder, and drive up summer cooling bills across southeast Clovis.
- Wildfire smoke particulate infiltration through degraded duct seals. Smoke from Sierra Nevada wildfires funnels westward into the San Joaquin Valley air basin, and poorly sealed return ducts pull these fine particulates directly into living spaces - a genuine health concern in a region the EPA has ranked among the nation’s worst for year-round particulate matter.
Pricing for Duct Repair & Sealing in Clovis, CA
We believe in one honest price, shown before we start. Here’s what duct repair and sealing typically runs in the Clovis market:
| Service | Typical Range in Clovis |
|---|---|
| Single air leak repair (mastic seal) | $180-$280 |
| Flex duct section replacement | $250-$450 |
| Whole-system duct sealing (average 2,000 sq ft home) | $400-$650 |
| Metal duct seam repair with sleeve | $220-$380 |
| Duct insulation wrap (per linear foot) | $8-$14 |
Factors that affect your specific price: accessibility of ductwork in attic or crawl space, extent of damage or separation, whether camera inspection reveals construction debris requiring cleaning before sealing, and home size. We offer $50 off any repair over $250, a permanent 5% senior and veteran discount, and free second opinions on any written estimate you’ve received. Call (855) 401-6006 for your exact quote - estimates are free, and the number on the phone is the number on the invoice.
We Also Serve Cities Near Clovis
Our service area extends throughout the central San Joaquin Valley. We regularly perform Duct Repair & Sealing in Clovis and surrounding communities including Fresno, Old Fig Garden, Sanger, and Fowler. If you’re unsure whether we cover your address, call - we probably do, and we’ll tell you straight.
Serving Clovis, CA - Our Local Coverage Area
We’re based in the Clovis 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 - Duct Repair & Sealing in Clovis
Clovis sits inside the San Joaquin Valley air basin, which the EPA has repeatedly ranked among the worst in the nation for year-round particulate matter. A combination of agricultural field dust from the almond orchards, cotton fields, and dairy operations that surround the city on three sides, plus wildfire smoke funneled westward off the Sierra Nevada, means Clovis HVAC systems accumulate fine particulate debris at rates far exceeding most California cities. This makes professional duct sealing a genuine health necessity here rather than a discretionary upgrade, and it’s a reality that simply does not apply to the same degree in coastal or Bay Area markets. Call (855) 401-6006 for a free estimate - we’ll inspect your system and show you exactly what you’re breathing.
Tule fog, the dense low-lying winter phenomenon unique to the San Joaquin Valley floor, introduces sustained humidity into poorly sealed flex-duct sections and promotes mold colonization. The fog can linger for weeks during December and January, and any duct joint that isn’t sealed with mastic becomes a moisture entry point. We see this most often in 93612’s older ranch homes with original metal ductwork, where decades of thermal cycling have opened seams that tule fog exploits. Sealing with mastic and proper insulation eliminates this pathway. Call (855) 401-6006 to schedule an inspection before the next fog season.
Yes, and you’re not alone - first-time duct sealing is the dominant job type we perform in the 93619 corridor, not repeat maintenance. These mid-2000s tract homes are now 15-20 years old, and the original duct tape has likely degraded in attic heat while construction debris from original installation continues restricting airflow. Our camera inspection will show you exactly what condition your system is in, and our upfront pricing means you’ll know the full cost before we begin. Most 93619 homeowners see immediate improvements in room-to-room temperature balance and summer cooling costs. Call (855) 401-6006 for a free estimate.
Yes. The mid-century ranch homes in 93612 near Old Town Clovis often have original galvanized sheet-metal ductwork that has developed rust, separated seams, or collapsed sections over 50-70 years of service. Our technicians carry metal repair sleeves, sheet-metal screws, and professional-grade sealants specifically for these older systems. Camera inspection before work begins lets us document the exact condition and show you what needs attention. We’ve restored airflow in dozens of these homes without requiring full duct replacement. Call (855) 401-6006 to discuss your specific system.
Proper duct sealing significantly reduces wildfire smoke infiltration by eliminating the return-side leaks that pull unfiltered outdoor air into your HVAC system. However, if smoke odors have already permeated your duct insulation or if your system has never been professionally cleaned, sealing alone may not fully resolve the issue. We typically recommend camera inspection to assess whether cleaning, sealing, or both are needed for your specific situation. The 90-Day Done Right Promise applies either way - if the problem persists, we return at no charge. Call (855) 401-6006 for an evaluation.
Ready to fix your ducts right? Call Bellows Air Duct & Vent Co. of California at (855) 401-6006 for free estimate on Duct Repair & Sealing in Clovis. We’ll show you your price before we start, back the work with our 90-Day Done Right Promise, and leave you with camera-verified results you can see for yourself. No bait coupons. No surprises on the bill. Just a square deal, done right.
Written by Roger Castañeda, Owner at Bellows Air Duct & Vent Co. of California, serving Clovis since 1984.