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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Cloverleaf
Duct repair and sealing in Cloverleaf typically costs $280-$780 for most single-system homes, with flex duct replacement running higher when original 1960s or 1970s materials are involved. Our crews are dispatched from our Houston office and carry the equipment to handle Cloverleaf’s specific challenges - sagging flex duct in low attics, post-Harvey moisture damage, and the industrial particulate load that comes with living downwind of the Ship Channel. Call (346) 248-1474 and we’ll put a written price in front of you before any panel comes off.
We’ve been working the eastern Harris County corridor since 2013, and Cloverleaf’s housing stock is unlike anything you’ll find in The Woodlands or Spring. The modest ranch and split-level homes built during the post-war expansion - late 1950s through the 1970s - came with flexible duct systems that weren’t designed for decades of near-year-round cooling demand. We’ve crawled enough Cloverleaf attics to know what the original materials look like when they’ve finally given out.
Why CleanRun Air Duct Cleaning The Woodlands Is Cloverleaf’s Preferred Duct Repair & Sealing Company
CleanRun is independently owned and operated under the Haven Standard, not a franchise, and our Cloverleaf customers know the difference. They get a written price before work starts - Haven Standard Clause 1 - and a Documented Photo Record of every duct run before we leave, not a handshake and a promise.
Our technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. The license number is published on this page, not buried in a footer where you’d never find it. Every job is backed by the 365-Day Done Right Promise in writing, not as a policy subject to manager approval.
Scheduling is coordinated from our Houston office, and crews serve Cloverleaf with the parts and equipment to complete most flex duct repairs and sealing jobs in a single visit. We’ve handled over 52,000 homes since 2013, every one with a written price agreed before work began and a photo record delivered afterward.
We also offer a Free Second Opinion on any written estimate - bring a competitor’s quote and we’ll put our number next to it in writing, no charge.
Our Duct Repair & Sealing Services in Cloverleaf
Duct Sealing
Cloverleaf’s original flex duct systems were sealed with tape that degrades in hot attics - we’ve pulled off strips that turned to dust after twenty years at 140°F. We seal every joint and connection with mastic sealant, a fiber-reinforced compound that remains flexible and airtight through temperature swings. On a typical Cloverleaf ranch home, we’ll seal the plenum (the main distribution box attached to your air handler), every branch connection, and all register boots where duct meets wall or ceiling. The result is measured: we run a duct blaster test on request to verify leakage reduction, and we photograph every sealed joint for the Documented Photo Record.
Flex Duct Repair
This is the service we perform most often in Cloverleaf. The original flex duct in these 1960s and 1970s homes has sagged between trusses, kinked at elbows, or split at connections after decades of airflow and attic heat. We replace damaged runs with new insulated flex duct, properly supported to prevent future sagging, and we always inspect the full system - one compromised run usually means others are close behind. Our crews carry Rotobrush and Nikro equipment for the cleaning that should accompany any repair, and we use Guardsman-grade materials where manufacturer specifications call for them.
Metal Duct Repair
Some Cloverleaf homes, particularly those with early additions or custom builds near the San Jacinto Battleground area, have galvanized metal ductwork. Metal ducts don’t sag like flex, but they corrode at seams and can separate at joints after decades of thermal expansion. We repair metal systems by re-sealing seams with mastic, replacing corroded sections, and adding mechanical supports where original hangers have failed. The industrial particulate load in Cloverleaf accelerates corrosion at any point where the protective coating has worn thin.
Duct Insulation
Houston’s coastal subtropical humidity - among the highest of any major U.S. metro - means condensation forms on the exterior of supply ducts running through hot attics. Any micro-tear or loose joint becomes a direct pathway for humid attic air to saturate insulation and interior duct walls. In Cloverleaf, where many attics still contain original or flood-compromised insulation, we replace water-damaged duct wrapping with new R-6 or R-8 insulation (depending on attic configuration) and seal the vapor barrier completely. This is especially critical for homes that took on floodwater during Hurricane Harvey and never had the low attic ductwork fully addressed.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Cloverleaf
Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - professional-grade tools you can look up independently before agreeing to a price. We stock common flex duct diameters, mastic compounds, and insulation wraps for Cloverleaf’s typical residential systems, so most repairs don’t wait on parts. For specialized components - certain Honeywell zoning dampers or Aprilaire media air cleaners integrated with duct systems - we coordinate next-day delivery from Houston suppliers rather than making you wait for a return visit.
Common Duct Repair & Sealing Problems We See in Cloverleaf Homes
- Original flex duct has sagged and kinked under decades of near-year-round cooling demand. The resulting low spots trap condensation that rots the duct from the inside out before any leak is visible to a homeowner checking registers from below.
- Micro-tears and loose joints in supply ducts running through 140°F+ attics let humid Gulf air saturate the insulation, creating a mold and dust-mite substrate that keeps feeding contamination back into the airstream even after a thorough cleaning.
- Post-Harvey flex duct in low attic sections or under-floor runs that took on 12-18 inches of floodwater was often never replaced. The contaminated insulation batting dried in place and continues to off-gas into the air stream years later - we find this in Channelview-area pockets of Cloverleaf more than anywhere else we serve.
- Industrial particulate accumulation from Ship Channel proximity bakes into the original flex duct’s insulation batting rather than sitting loosely on duct walls. Standard cleaning can’t extract material that has bonded with insulation fibers; replacement or encapsulation is often the only effective remedy.
Pricing for Duct Repair & Sealing in Cloverleaf, TX
A typical duct sealing job in Cloverleaf runs $280-$450 for a single-system home with accessible attic space. Flex duct repair or partial replacement runs $340-$620 depending on linear footage and whether the plenum also needs resealing. Full flex duct replacement in a 1,500-square-foot Cloverleaf ranch - common when original 1960s materials are involved - typically falls between $680 and $1,200.
What moves the number: attic accessibility (tight truss spacing adds labor), the number of supply and return runs, whether flood-damaged insulation requires complete removal, and if we find metal duct corrosion that needs section replacement rather than sealing alone. Every price is written and agreed before work starts - Haven Standard Clause 1 - and includes the Documented Photo Record as a standard deliverable, not an add-on.
Call (346) 248-1474 for an exact quote. Estimates are free, and we provide a Free Second Opinion on any competitor’s written estimate.
We Also Serve Cities Near Cloverleaf
Our crews work throughout the northern and eastern Houston metro, including Cloverleaf and neighboring communities. Homeowners in The Woodlands, Tomball, Conroe, and Spring can expect the same written pricing, verified crews, and documented results. If you’re unsure whether your address falls in our service area, call (346) 248-1474 and we’ll confirm directly.
Serving Cloverleaf, TX - Our Local Coverage Area
We’re based in the Cloverleaf 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 Cloverleaf
Original flex duct from the 1960s can usually be cleaned once or twice, but if the inner liner is brittle or the insulation batting is oil-saturated from decades of particulate load, replacement is the only solution that lasts. We run a camera inspection first and show you what we find - if the duct is intact, we’ll clean and seal; if the liner cracks under light pressure or the batting is contaminated, we’ll quote replacement with a written price before any removal begins. Call (346) 248-1474 to schedule an inspection.
The signs are specific: musty or earthy odors when the system cycles, visible water staining on ceiling registers in low rooms, or insulation debris blowing from vents. We were called out to a 1968 ranch-style home in the Channelview-area pocket of Cloverleaf where the homeowner complained of a musty odor every time the system kicked on. Our tech ran a camera inspection through the air handler and found a disconnected flex duct run in the low attic section that had been sitting open since Harvey floodwater wicked into the insulation batting back in 2017 - the batting had dried in place and become a mold substrate that was off-gassing straight into the airstream. We reconnected the run, removed the contaminated batting, wrapped the duct with new insulation, and sealed every joint with mastic, and the odor was gone on the next cooling cycle. If your home flooded and you don’t have documentation of duct replacement, we recommend inspection.
Cloverleaf sits squarely in the eastern Houston industrial corridor - directly downwind of Ship Channel refineries and petrochemical plants - meaning residential HVAC systems here pull in elevated concentrations of industrial particulates, VOCs, and combustion byproducts that suburban Houston neighborhoods to the west or north simply don’t face at the same level. When your ducts leak, your system doesn’t just lose conditioned air; it pressurizes the attic and draws those contaminants into the living space through every gap in the ceiling plane. Tight ducts are a air quality defense in Cloverleaf in a way they aren’t in The Woodlands or Tomball.
We start with a camera inspection of every accessible run, then deliver a written scope and price - Haven Standard Clause 1 - before any work begins. For a typical 1960s Cloverleaf ranch, that means inspecting the plenum and all branch ducts, replacing any sagging or damaged flex duct with new supported runs, removing contaminated insulation, wrapping with new R-6 or R-8 insulation, and sealing every joint with mastic. We photograph every run before and after, and deliver the Documented Photo Record as part of the standard job file. Most single-system homes are completed in one day.
Given Cloverleaf’s combination of aging housing stock, high humidity, and elevated particulate load, we recommend inspection every three to five years for homes with original or early-replacement duct systems. Homes that took on floodwater during Harvey and haven’t had ductwork evaluated should schedule now - delayed moisture damage doesn’t improve with time. Call (346) 248-1474 to book an inspection; estimates are free and include the camera documentation.
Ready to see what’s actually in your ducts? Call CleanRun at (346) 248-1474 for a free estimate. We’ll put a written price in front of you before any work starts, back every job with the 365-Day Done Right Promise, and leave you with a Documented Photo Record of every run we touched.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Cloverleaf and the greater Houston metro since 2013.