Air Duct Cleaning in Friendswood — One Price Per System, Agreed Before We Start

Air Duct Cleaning in Friendswood, TX

Air duct cleaning in Friendswood typically costs $350–$850 for a full residential system, with most jobs completed in a single visit. We’re usually on-site in Friendswood within 24–48 hours of your call. Call (855) 683-5929 for a free estimate. We’ve been working the Friendswood market long enough to know that duct cleaning here isn’t routine maintenance for most homeowners — it’s a response to real problems hiding inside walls and crawl spaces. The mid-1970s to mid-1990s housing stock throughout 77546 and 77549 still runs on original fiberglass duct board and first-generation flex duct now 30–50 years old, and Hurricane Harvey’s floodwaters left contamination that post-storm remediation crews never touched.

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Why Friendswood Homes Are Different

Friendswood sits squarely in the Clear Creek floodplain, and the 2017 Harvey flood was only the most severe of repeated inundations. Floodwater that entered crawl spaces wicked into fiberglass duct interiors, leaving mold, silt, and bacterial residue that drywall-and-carpet restoration crews routinely skipped. Technicians working the older streets off FM 518 report interior mud-line staining consistent with Harvey floodwater intrusion — contamination invisible from vents that remains active seven years later. Add salt-laden air from Galveston Bay corroding hardware years faster than inland markets, plus 9–10 months of annual AC operation keeping duct interiors humid, and you’ve got conditions that turn standard maintenance into specialized remediation.

Air Duct Cleaning in Friendswood

Our Air Duct Cleaning process starts with video inspection because Friendswood duct systems demand it. We’ve documented flood residue in homes off Edgewood and near Clear Creek that owners assumed was handled years ago. The combination of aging fiberglass, coastal humidity, and repeated moisture events means we adjust our approach for every job.

Residential Duct Cleaning

Friendswood’s ranch-style slab-on-grade homes from the 1970s–1990s carry original duct board now brittle from decades of humidity cycling. We video-inspect first to document structural integrity, then use Rotobrush agitation at controlled torque paired with Nikro HEPA extraction. Basic residential duct cleaning for a single system with up to 10 vents runs $350–$550. Full system cleaning with video inspection and documentation runs $550–$850. Homes near Clear Creek with documented flood history typically fall in the upper half of that range due to extended cleaning time and HEPA containment requirements.

Post-Flood Remediation Cleaning

Standard brush cleaning won’t touch Harvey-era silt sealed inside fiberglass duct board. We use HEPA-contained agitation and extended contact-time extraction to remove mud-line staining and bacterial residue that post-storm crews missed. Post-flood or contamination remediation cleaning in Friendswood runs $750–$1,400 depending on system size and contamination severity. We don’t quote these jobs by phone — Scott Gray assesses the system in person, shows you what the borescope found, and agrees on one flat price before work starts.

My Friendswood home flooded in Harvey but remediation only replaced drywall and carpet. Do I still need duct cleaning?

Yes. Post-Harvey remediation focused on visible finishes, not hidden pathways. Floodwater entered crawl spaces and wall cavities, then wicked into fiberglass duct board through seams and returns. That contamination remains active in many Friendswood homes, producing musty odors and microbial growth invisible from vents. We document this with video inspection before cleaning. Call (855) 683-5929 for a free assessment — estimates are free.

Dryer Vent Cleaning in Friendswood

Dryer vent cleaning in Friendswood typically runs $140–$280 for standard residential runs and $220–$380 for detached workshops with extra-long vent lines. We’re familiar with the acreage properties off FM 518 where workshop dryers sit 40 feet from the house through multiple elbows. Our Dryer Vent Cleaning brings the right equipment in one trip.

Standard and Extended Vent Cleaning

Standard residential vent cleaning up to 15 feet runs $140–$200. Extended runs from 15–30 feet run $180–$260. For these, we use Rotobrush rotary systems with HEPA containment. The dense lint plugs we find in Friendswood’s longer runs don’t accumulate evenly — they pack at low points and behind elbows where Gulf humidity mats fibers together.

Workshop and Long-Run Cleaning

Workshop runs over 30 feet with multiple elbows run $220–$380. We deploy Rotobrush flex-shaft extensions and our Nikro long-reach vacuum kit to maintain suction across the full distance. We’ve cleared 40-foot runs in a single pass. Bird nest removal adds $40–$80 if we need to dismantle the termination, and we replace unprotected caps with Guardsman bird guards to prevent recurrence.

How do I know if my workshop’s dryer vent is clogged when the dryer seems to run okay?

Long-run clogs hide behind normal operation — the element heats, the drum turns, but drying times creep from 40 minutes to 90 minutes over months. Check the exterior flap: it should blow open firmly during operation. If it barely moves, you have a restriction. We also see warm, humid air backing into workshops in Friendswood’s high-humidity months, which rusts tools and breeds mildew. Call (855) 683-5929 — we’ll inspect and quote upfront.

HVAC Cleaning in Friendswood

HVAC cleaning in Friendswood typically costs $280–$580 for a complete system service. The salt-laden coastal air here bakes a distinctive salt-and-grime crust onto evaporator coils that inland technicians rarely encounter. Our HVAC Cleaning addresses the full contamination pathway, not just visible vents.

Evaporator Coil and Air Handler Cleaning

Evaporator coil cleaning runs $180–$320. We use foaming agents and gentle agitation — never high-pressure washing that bends delicate fins — followed by Guardsman’s protective treatment to slow salt-air corrosion. Air handler cleaning runs $280–$450. The air handler is where flood residue concentrates in Friendswood homes; we disassemble the blower assembly and clean the housing with Abatement Technologies HEPA systems. On a 1980s ranch off FM 518, we found mud-line staining exactly 4 inches from the bottom of the trunk line — Harvey residue no post-storm crew had touched.

Complete System Cleaning

Complete HVAC system cleaning runs $480–$780. Friendswood pricing runs slightly higher than inland Houston markets because coastal corrosion often reveals repair needs during cleaning, and flood-residual contamination requires more intensive HEPA-contained extraction. Homes in 77546 with original 1980s duct board may need additional sealing work after cleaning — we quote this upfront, never as a mid-job surprise.

Will a simple vent cleaning remove the musty smell after a flood?

No. Vent cleaning only reaches the first few feet from the register. Musty odors in post-flood Friendswood homes almost always originate deeper — in duct board interiors, air handler cabinets, or evaporator coils where moisture and organic material combine. We address the full contamination pathway. Call (855) 683-5929 for a proper assessment — estimates are free.

Duct Repair & Sealing in Friendswood

Duct repair and sealing in Friendswood typically costs $180–$650 depending on scope. The combination of salt-air corrosion, thermal cycling from 9–10 months of annual AC operation, and flood-driven moisture intrusion means sealing here must prioritize water-tight integrity, not just air-leak fixes. Our Duct Repair & Sealing uses commercial-grade mastic, not duct tape or caulk.

Mastic Sealing and Flex Duct Repair

Mastic sealant touch-up and spot sealing runs $180–$320. We apply fiber-reinforced mastic that remains flexible through thousands of thermal cycles — critical when Houston humidity swings from 90% saturation to air-conditioned dryness inside the duct. Flex duct section replacement runs $240–$450 per run. The original flex in 77546 homes is reaching end of life, with fiberglass interiors delaminating from repeated moisture exposure.

Metal Duct Repair

Metal duct repair with resealing runs $280–$520. Some 1970s Friendswood homes with galvanized metal trunk lines develop corrosion at seams where condensation pools during our extended cooling season. We repair the metal, reseal with mastic, and flag when corrosion has progressed beyond cleaning’s reach so you’re not paying for the wrong service.

How does Friendswood’s flood history affect duct repair and sealing needs?

Friendswood’s repeated flooding — most severely during Hurricane Harvey — left thousands of homes with duct systems that absorbed contaminated water and were never properly remediated. Floodwater wicked into fiberglass duct board and flex duct interiors, leaving mold, silt, and bacterial contamination that standard post-flood crews routinely skipped. Our sealing protocols prioritize water-tight integrity at joints and boots to prevent future moisture intrusion. Call (855) 683-5929 — estimates are free.

Air Quality & Sanitizing in Friendswood

Air quality and sanitizing in Friendswood typically costs $180–$650 depending on contamination severity. Standard duct cleaning doesn’t cut it here when the source is flood-deposited organic material inside duct interiors. Our Air Quality & Sanitizing targets the actual contamination, not just the air passing through it.

Mold and Bacteria Treatment

Mold treatment for moderate contamination runs $350–$650. We use Rotobrush agitation to physically remove mold from delaminating duct interiors, then apply treatment that penetrates the substrate rather than masking surface growth. Bacteria sanitizing runs $250–$450. We apply Guardsman sanitizer through our Nikro HEPA systems, creating contact time inside the duct run where bacteria actually colonize, not just at the vent opening. Off FM 518, we treated a 1980s ranch where Harvey floodwater left silt caked inside fiberglass duct board — standard post-flood drywall crews never opened the ducts.

Odor Removal and UV Installation

Odor removal as a standalone service runs $180–$320, though we typically bundle it with mold or bacteria treatment when flood contamination is present. That persistent mustiness in Friendswood homes is often the duct interior releasing flood-contaminated particles every time the AC cycles. UV light installation runs $400–$750 and helps suppress microbial regrowth after source removal, but we never recommend UV alone for active contamination.

My Friendswood home flooded during Harvey — can air duct cleaning remove the mud-line stains I see inside the registers?

Yes, but only with mechanical agitation combined with professional-grade sanitizer application. The mud-line staining visible at your registers indicates contamination extending deeper into the duct run, and removing it requires equipment that contacts the duct interior directly. We use Rotobrush systems to physically dislodge silt deposits, then apply Guardsman sanitizer with sufficient contact time to address bacterial colonization. Call (855) 683-5929 for a free inspection — estimates are free.

Brands We Service in Friendswood

We clean and service systems with Rotobrush rotary equipment, Nikro HEPA vacuums, and apply Guardsman treatments for mold and bacteria control. For whole-home air purification, we install Honeywell and Aprilaire systems. We stock common parts and can typically source manufacturer-specific components within 24–48 hours for most residential systems in the 77546 and 77549 ZIP codes. See all brands we service.

Pricing for Air Duct Cleaning in Friendswood, TX

Neighborhoods We Serve in Friendswood

We work throughout the 77546 and 77549 ZIP codes, from the established ranch homes near Clear Creek to the commercial corridors along FM 518 and Bay Area Boulevard. Most Friendswood appointments are scheduled within 24–48 hours.

• Wedgewood Village
• Edgewood
• Clear Creek area
• FM 518 corridor
• Bay Area Boulevard vicinity

Service Area — Cities Near Friendswood

Lone Star Air Duct Cleaning Service Houston has served Friendswood, TX since 2006, and we regularly work the surrounding communities. Homeowners in Webster, TX and Pearland, TX face similar coastal humidity challenges. We also service League City, TX and Alvin, TX for acreage properties with long vent runs, and Pasadena, TX for industrial and commercial duct systems. Wherever you are in the Clear Creek and Galveston Bay corridor, Scott Gray leads the job personally.

FAQs About Air Duct Cleaning in Friendswood