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.
Air Duct Cleaning in Friendswood, TX
HVAC cleaning in Friendswood typically runs $380-$680 for a full system, with mold treatment and sanitizing adding $220-$450 depending on contamination level. The combination of 30-50 year old flex duct, Gulf Coast humidity, and Hurricane Harvey’s lingering effects means Friendswood homes need more than a vacuum pass through the registers. We dispatch crews from our Houston office to serve Friendswood directly, and every job starts with a written price before any panel comes off. Call (346) 253-1822 for a free estimate.
Why Friendswood Homes Are Different
Friendswood sits roughly 20 miles from Galveston Bay, and that proximity shows up inside the ductwork. The sustained humidity here keeps indoor relative humidity elevated and HVAC systems running nearly year-round, which accelerates mold colonization inside duct liners and at supply registers even in homes with no flood history.
The housing stock compounds this. Core neighborhoods are filled with subdivisions built from the late 1960s through the 1990s, slab-on-grade construction with attic-run flex duct systems now 30-50 years old. That aging flex duct degrades the inner liner faster than in drier inland markets.
Then there’s Harvey. Large portions of the city, especially along Clear Creek and its tributaries, took on feet of standing water in 2017. Insurance-driven renovations replaced drywall and flooring, but ductwork was routinely overlooked. Technicians working subdivisions near FM 518 toward the creek corridor still pull registers and find dried silt lines inside duct boots, a tell-tale sign of inundation that homeowners sometimes don’t know is there, especially in houses that changed hands after 2017 renovations.
Our Main Friendswood Services
These are the three services Friendswood homeowners call about most.
Air Duct Cleaning in Friendswood
Full-system negative-pressure extraction of every duct run, with before-and-after photography inside each line. In Friendswood, we pay particular attention to flood-affected boots and aging flex duct connections that may have separated in attics. Every job includes a written scope and price before work begins. Air Duct Cleaning in Friendswood

Dryer Vent Cleaning in Friendswood
Lint removal from the dryer connection through the exterior termination, with airflow testing before and after. Friendswood’s humidity causes lint to compact more densely than in drier climates, and older homes often have longer vent runs through slab foundations that require rotary brushing. Dryer Vent Cleaning in Friendswood

Duct Repair & Sealing in Friendswood
Repair of separated flex duct, crushed lines, and deteriorated connections, plus mastic sealing of the return plenum and supply trunk. Harvey-era homes often have partial repairs or insurance-patchwork that left gaps in the system. We photograph every defect before quoting repair scope. Duct Repair & Sealing in Friendswood

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.
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AfterHVAC Cleaning in Friendswood

Friendswood’s 30-50 year old flex duct systems, combined with Gulf Coast humidity and post-Harvey contamination history, create conditions where the entire HVAC cabinet needs attention, not just the duct lines. Evaporator coils in this market commonly show mold growth within two seasons of cleaning if the blower and condenser aren’t addressed simultaneously. HVAC Cleaning from CleanRun treats the system as an integrated unit, with documented photography of each component.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil, weak airflow from registers, or musty odor when the AC cycles on.
What it costs in Friendswood
Evaporator coil cleaning typically runs $280-$420 in Friendswood, with heavily contaminated coils from flood-affected homes at the higher end.
How we do it
We remove the access panel, apply foaming cleaner from Abatement Technologies, rinse with low-pressure water, and photograph the coil surface before and after.
Blower Cleaning
Signs you need it
Dust streaks on the blower housing, vibration or noise from the motor, or uneven temperatures room-to-room.
What it costs in Friendswood
Blower cleaning and wheel balancing typically runs $220-$340 in Friendswood.
How we do it
We remove the blower assembly, clean the wheel and housing with Rotobrush equipment, check amp draw, and reinstall with photographed documentation.
What HVAC Cleaning Costs in Friendswood
| Item | Typical range in Friendswood |
|---|---|
| Evaporator coil cleaning | $280-$420 |
| Blower cleaning | $220-$340 |
| Full HVAC system cleaning (coil + blower + condenser) | $380-$680 |
How do I know my HVAC needs cleaning versus just the ducts?
If you smell must when the AC starts, see ice on the coil, or have weak airflow despite clean filters, the cabinet components need attention. We inspect the coil and blower during every duct cleaning estimate and show you what the camera sees.
Can flood contamination in my HVAC be cleaned, or does it need replacement?
Most flood-affected components can be cleaned if addressed promptly; replacement is only needed when metal components show corrosion or flex duct liner has delaminated. We photograph the damage and give you a written scope for either option.
Air Quality & Sanitizing in Friendswood

Friendswood’s humidity and Harvey history create conditions where biological contamination persists in ductwork even after debris removal, making sanitizing a separate and necessary step from mechanical cleaning. We treat mold and bacteria with EPA-registered products, and install UV and filtration upgrades for homes that need ongoing protection. Air Quality & Sanitizing from CleanRun includes post-treatment lab-verified photo documentation.
Mold Treatment
Signs you need it
Visible mold at registers, musty odor that returns after duct cleaning, or post-Harvey renovation without duct replacement.
What it costs in Friendswood
Mold treatment typically runs $320-$580 in Friendswood, with whole-system fogging for heavily contaminated homes at the higher end.
How we do it
We apply Guardsman antimicrobial through the entire duct system, treat the coil and plenum, and provide before-and-after photo documentation of treated surfaces.
UV Light Installation
Signs you need it
Recurring mold despite cleaning, family members with respiratory sensitivity, or year-round AC operation in Friendswood’s humid climate.
What it costs in Friendswood
UV light installation typically runs $380-$620 in Friendswood, including the lamp and electrical connection.
How we do it
We mount a UV-C lamp in the supply plenum, wire to the blower circuit, and show you the installation before closing the panel.
What Air Quality & Sanitizing Costs in Friendswood
| Item | Typical range in Friendswood |
|---|---|
| Mold treatment (whole system) | $320-$580 |
| Bacteria sanitizing | $220-$380 |
| UV light installation | $380-$620 |
Is mold treatment safe for pets and kids?
We use EPA-registered, low-toxicity products that are safe for occupied homes when applied correctly; we ventilate the system for 30 minutes post-treatment and provide the product SDS on request.
How long does UV light last before replacement?
UV-C lamps typically maintain effective output for 9,000-12,000 hours, about 12-18 months in Friendswood’s near-continuous AC climate; we note the install date on your job record and call when replacement is due.
Brands We Service in Friendswood
We clean and repair systems from all major manufacturers, with Aprilaire media filters, Abatement Technologies HEPA equipment, and Guardsman antimicrobial products stocked locally for same-visit installation. Most replacement parts for common brands arrive within 24 hours through our Houston office. our brands
Pricing for Air Duct Cleaning in Friendswood, TX

| Service | Typical range in Friendswood |
|---|---|
| Air duct cleaning (whole system) | $320-$580 |
| Dryer vent cleaning | $140-$220 |
| Evaporator coil cleaning | $280-$420 |
| Blower cleaning | $220-$340 |
| Full HVAC system cleaning | $380-$680 |
| Mold treatment | $320-$580 |
| Bacteria sanitizing | $220-$380 |
| UV light installation | $380-$620 |
| Duct repair & sealing (per run) | $180-$340 |
| Return plenum resealing | $240-$420 |
Prices increase in Friendswood when we find Harvey silt requiring extra extraction passes, or when aging flex duct has multiple separated connections needing repair. Every price is written and agreed before work starts, Haven Standard Clause 1; no exceptions.
Neighborhoods We Serve in Friendswood
We work throughout Friendswood’s core subdivisions, from the older sections near FM 518 to newer development toward the western edge. Crews dispatch from our Houston office and typically arrive within scheduled windows.
- West Ranch
- Briarwood
- Clear Creek Village
- Autumn Lakes
- Sunset Grove
Service Area - Cities Near Friendswood

CleanRun serves homeowners throughout the southeast Houston metro, with regular appointments in Webster, TX, League City, TX, Pearland, TX, and Alvin, TX. Scheduling and dispatch are coordinated from our Houston office; crews carry the full equipment roster to every appointment.
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 Cleaning in Friendswood

Mechanical cleaning and sanitizing do not require permits; duct replacement or major modifications may need Friendswood building department approval, and we handle permit applications as part of any repair scope that requires them.
We typically schedule within 3-5 business days for standard cleaning; if you’ve had recent water intrusion or visible mold, we prioritize the appointment and advise on interim steps by phone.
Yes, we provide written scopes and insurance documentation for HOA-managed communities on request, and we schedule within any access-hour requirements your association specifies.
Call us for a camera inspection; we’ll show you what the registers and boots look like inside, document any silt or biological growth, and give you a written scope for cleaning or replacement that you can use with your insurance if coverage is still available.
Call (346) 253-1822 for a free estimate. Every price is written before work starts, every duct run is photographed, and every job is backed by our 365-Day Done Right Promise.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Friendswood Customers Say
"Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B.




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