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 Air Duct Repair Across Friendswood
Air duct repair in Friendswood usually involves sealing leaks, replacing water-damaged flex runs, and treating mold that took hold after Hurricane Harvey or decades of Gulf Coast humidity. Most repair jobs we handle in Friendswood run between $400 and $1,800 depending on how much ductwork needs replacing and whether mold remediation is required. Call us at (980) 447-2498 and we’ll give you a written price before any work begins.
We’ve worked in neighborhoods from Forest Bend to Sunmeadow, along FM 518, FM 528, and the Clear Creek corridor. We know what Friendswood duct systems look like after a flood and after twenty years of near-constant A/C use. Our Air Duct Repair crews arrive in marked trucks, with a name and photo sent to you before we pull up.
Why Linden Air Duct Cleaning Is Friendswood’s Preferred Air Duct Repair Company
Homeowners in Friendswood call us because we put the price in writing before we start, and because every repair carries a 365-Day Done Right Promise. If a covered repair fails within a year, we come back at no charge. That matters when you’re dealing with post-Harvey duct contamination that other companies miss.
Our technicians know Friendswood’s housing stock. Ranch homes built in the 1980s off Whispering Pines, two-story traditionals near Heritage Park, and the newer subdivisions east of 45 all have different duct layouts and failure patterns. We don’t send a generic crew. We send techs who understand how slab-adjacent flex runs behave in this specific climate.
Every technician is background-checked, identity-verified, photo-badged, and introduced to you by name before arrival. The Threshold Standard means you know exactly who’s coming to your door. We’ve operated this way since 2004 as part of the Threshold Group family.
When you call, a live person answers. Not a voicemail loop. Not an automated system. A human being who can schedule your repair and answer questions about what we found in other Friendswood homes.
HVAC Duct Installation in Friendswood
HVAC Duct Installation in Friendswood means replacing old or flood-damaged ductwork with new, properly sealed runs sized to your system. Many Friendswood homeowners need this after Harvey damaged original flex duct, or when 1980s-era fiberglass duct board has deteriorated past the point where repair makes sense. Typical HVAC duct installation in Friendswood costs $1,200 to $4,500 depending on the home’s square footage, the number of supply and return runs, and how much of the old system has to be removed.
Replacing Post-Harvey Flex Runs
After Harvey, contractors worked at a furious pace across Friendswood. Some flex duct was installed fast, without proper sealing at joints or support spacing. What looks fine from the register is often leaking at the plenum connection or sagging near the slab. We measure static pressure, inspect with cameras, and replace what actually needs replacing – not what’s convenient.
If your home had new ductwork installed between 2017 and 2019 and you’re already smelling must or seeing dust buildup around registers, the original repair likely wasn’t done right. We fix that.
Full Duct Board Replacement
Homes built in Friendswood between the mid-1970s and mid-1990s usually have fiberglass duct board at the air handler and plenum. After decades of 75 – 85% humidity, that board becomes porous and holds moisture against the fiberglass mat. Biological growth takes hold inside the core. You can’t clean it out. It has to come out.
We replace duct board with sealed sheet metal plenums and insulated flex, properly strapped and mastic-sealed. It’s not a patch job. It’s a reset.
Air Duct Replacement in Friendswood
Air Duct Replacement in Friendswood goes beyond patching leaks. We remove the failed duct sections and install new, code-compliant runs sized for your HVAC system’s airflow requirements. On a typical 2,000-square-foot Friendswood ranch, partial replacement of supply runs or return drops costs $800 to $2,500. Full-system replacement runs $3,000 to $6,000 depending on access, duct length, and whether the plenum needs rebuilding.
Slab-Adjacent Runs and Floor Registers
West of FM 518 along the Clear Creek corridor, homes with floor registers near living rooms and hallways often have flex duct runs that sit close to the slab. During Harvey, water pooled there. The fiberglass insulation inside the flex duct soaked up that water and never fully dried before the home was reoccupied. Years later, those runs still hold moisture against the liner.
When we replace those runs, we inspect the entire path, not just the visible section. If the insulation shows water staining or mold, the whole run comes out. Sealing it over doesn’t solve the problem.
Under-Sized or Poorly Sealed Replacement Work
Some post-Harvey replacements were rushed. Ducts got crimped, connections got taped instead of mastic-sealed, and supports were spaced too far apart. Under negative pressure, those joints pull apart and pull attic air, dust, and insulation particles into the duct stream. Our replacement work uses mastic at every connection, proper hangers, and R-8 insulated flex – the standard for humid Gulf Coast attics.
Trusted Brands We Service in Friendswood
We work with professional-grade equipment from Rotobrush for source-removal cleaning and agitation, and we install and service air-quality components from Aprilaire, Abatement Technologies, and Guardsman. For Friendswood homeowners, that means we can source replacement parts and filtration upgrades locally, without waiting on a distributor out of state. If your system already has an Aprilaire filter housing or a Guardsman UV system, our techs know how to service it correctly during a duct repair. We don’t have to call a hotline to figure out your equipment. We stock the common parts and know the failure points. That keeps repairs moving when Friendswood humidity is pushing your A/C to run nine or ten months a year.
Common Air Duct Repair Problems We See in Friendswood Homes
- Post-Harvey mold in slab-adjacent flex runs: Homes west of FM 518 near Clear Creek routinely show mold staining in the lowest floor registers because floodwater sat at floor level and the duct insulation never dried. This pattern persists years after the flood, even in homes that were professionally remediated elsewhere.
- Degraded fiberglass duct board from 1970s – 90s construction: Friendswood’s ranch homes have original duct board that has absorbed decades of Gulf Coast humidity. The porous surface holds biological growth that standard HVAC maintenance never touches.
- Condensation dripping into low-lying ducts: Even without flooding, poorly insulated duct sections sweat in Friendswood’s 75 – 85% ambient humidity. That moisture runs downhill, pools in low sections near floor registers, and feeds mold around the register boot.
- Hastily installed post-Harvey flex duct: The rebuild surge after 2017 left Friendswood with a significant share of flex duct that was installed quickly, with improper sealing and spacing. Joints pull apart under negative pressure, pulling attic air and insulation into the conditioned space, and creating early failure points we now repair routinely.
We were called to a ranch-style home in the Clear Creek corridor west of FM 518 where the homeowner reported a musty smell every time the A/C kicked on. Our tech ran a camera inspection through the supply and return ducts and found visible mold staining on the flex duct insulation near the living room and hallway floor registers. The water from Harvey had sat at floor level and the insulation never fully dried. We performed source removal with agitation tools under negative pressure and HEPA filtration, replaced the contaminated flex runs and the degraded fiberglass duct board at the air handler, and the musty odor cleared within a day. That pattern – clean returns, contaminated supply drops near the slab – is one we see over and over in Friendswood.
Pricing for Air Duct Repair in Friendswood, TX
A typical duct repair in Friendswood runs $400 to $2,500. Sealing a few leaking joints and replacing a short section of flex duct might land around $400 to $800. Replacing multiple supply runs or a return drop runs $800 to $2,500. Full duct replacement in a Friendswood ranch with original duct board can reach $6,000 depending on access and the extent of mold damage. What you won’t get is a low per-vent coupon that turns into a five-figure invoice once the tech is in the attic. We give one flat price per system, in writing, before any work begins. Call (980) 447-2498 for a free estimate. We’ll tell you exactly what needs to be done and exactly what it costs.
We Also Serve Cities Near Friendswood
Linden Air Duct Cleaning serves Friendswood and the surrounding communities. If you’re in Webster, League City, Pearland, or Alvin, call us and we’ll schedule a repair visit. Our Air Duct Repair in Friendswood crews regularly cross city lines for homeowners who need the same written pricing, verified techs, and 365-day guarantee. Dispatch is coordinated from our Houston office, and crews serve the Friendswood area locally.
Serving Friendswood, TX - Our Local Coverage Area
We’re based in the Friendswood 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 Air Duct Repair in Friendswood
If your home flooded during Harvey and you smell must whenever the A/C runs, especially near floor registers in living rooms or hallways, there’s a good chance mold is still living in the flex duct insulation near the slab. Camera inspection is the only way to confirm it. Call (980) 447-2498 and we’ll inspect your system and show you what we find, no guessing.
Homes in Friendswood should have ducts inspected and cleaned every 2 to 3 years, not the 5 to 7 years you see on generic websites. Our position near Clear Lake and Galveston Bay keeps humidity above 75% most of the year, so your A/C runs nine to ten months annually and pulls humid air, pollen, and dust through the ducts constantly. Homes near unpaved roads or open land on the west side of town load up with dust even faster. If you had Harvey flooding and the ducts were never professionally inspected afterward, schedule that now – don’t wait for the next interval.
Yes. Cleaning removes dust, debris, and surface contamination from the interior of the duct. Repair removes or fixes the duct itself – replacing flood-soaked flex insulation, rebuilding a degraded duct board plenum, sealing joints that pull in attic air. For a post-Harvey home, you often need both. First repair the damage, then clean. If you try to clean contaminated duct board, you’ll spread the problem, not solve it. Call (980) 447-2498 and we’ll tell you which approach your home actually needs.
Because cleaning only removes what’s inside the duct liner. It doesn’t fix the insulation wrapped around the outside of the flex duct, which is where floodwater soaked in and mold took hold. In Friendswood homes west of FM 518, we routinely find mold staining in the flex duct insulation near floor registers even when the interior liner tests clean. The fix is replacing those runs, not cleaning them again. If you had your ducts cleaned and the smell came back within months, call us. We’ll camera the runs and show you what the cleaning missed.
Yes. Our source-removal cleaning and repair work follows NADCA standards for containment, negative-pressure extraction, and HEPA filtration. We use Rotobrush equipment and follow the same inspection and documentation procedures for repair jobs that trigger mold remediation. Every job gets a written report of what we found and what we fixed. Call (980) 447-2498 for an inspection and a written estimate.
Talk to a Real Person
If you’re in Friendswood and your ducts smell, leak, or haven’t been inspected since Harvey, call us at (980) 447-2498. A live person answers. We’ll talk through what you’re seeing, schedule an inspection, and give you a written price before any work starts. No coupons, no bait-and-switch, no surprise invoice at the end. Just an honest assessment of your duct system and a clear plan to fix it.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Friendswood and the surrounding area since 2004.