Air Duct Cleaning in Mountain View, CA
Air duct cleaning in Mountain View typically costs $350-$550 for a standard single-family home and is completed in one visit with camera verification before and after. We’re Bellows Air Duct & Vent Co., and our background-checked, uniformed technicians know the difference between a 1950s ranch near Rengstorff Avenue with original galvanized ductwork and a 1990s garden apartment off Middlefield Road with shared HVAC chases. Call us at (855) 401-6006 for a free estimate, and we’ll show you exactly what your system looks like before we quote a price.
Why Mountain View Homes Are Different
Mountain View sits at the southern tip of San Francisco Bay, and that geography shapes what happens inside your ducts. From October through March, marine-layer fog rolls in overnight and doesn’t burn off until mid-morning, pushing moisture into attic spaces where many local duct systems are routed. That moisture degrades fiberglass duct board liner and creates conditions where mold can colonize, particularly in the 60-70-year-old systems common in Monta Loma and Rex Manor. We’ve opened attic hatches in these neighborhoods and found ductwork that hasn’t been inspected since the original Lockheed workers moved out.
The wildfire seasons of recent years have added another factor. When Northern California fires push smoke south, Mountain View’s AQI has repeatedly spiked into hazardous ranges, and residents shelter indoors for days or weeks at a time. Fine particulate matter infiltrates homes through gaps in building envelopes and recirculates through duct systems. After the 2020 and 2021 fire seasons, we saw a sustained increase in calls from Mountain View homeowners who wanted to see inside their ducts, not just take a company’s word that they were clean.
Monta Loma and Rex Manor in the 94043 ZIP were built in the 1950s-60s to house Moffett Field and Lockheed aerospace workers, creating a dense pocket of original duct systems that have never been professionally serviced. Many residents near Moffett Federal Airfield are acutely aware of the Middlefield-Ellis-Whisman EPA Superfund Study Area contamination legacy and are more proactively concerned about indoor air quality than homeowners in neighboring Sunnyvale or Santa Clara. This drives higher-than-average voluntary demand for duct cleaning, and it means our technicians field detailed questions about HEPA filtration and source-containment protocols rather than giving a generic sales pitch.
Air Duct Cleaning in Mountain View
Our Air Duct Cleaning service in Mountain View addresses the specific conditions this city’s housing stock and climate create. Most jobs run $350-$550 for a single system with up to 12 vents, with larger homes or dual-zone systems falling in the $550-$750 range. We use Rotobrush mechanical agitation paired with HEPA vacuum extraction, and every residential job includes camera inspection before and after work begins.
Residential Duct Cleaning
Most Mountain View homes we service are single-story ranch-style builds from the 1950s through 1970s, many with original ductwork routed through unconditioned attics. In Monta Loma and Rex Manor, we regularly encounter fiberglass duct board that has never been professionally cleaned - sixty years of accumulated debris, degraded liner, and in some cases, mold colonies fed by decades of fog intrusion. Our crew uses controlled mechanical agitation to remove built-up material without damaging fragile older ductwork. A standard residential clean for these homes typically falls between $350 and $550.
Return Duct Cleaning
Return ducts pull air back to your HVAC unit for reconditioning, and they’re the primary entry point for wildfire smoke particulate during Northern California’s increasingly severe fire seasons. After the 2020 and 2021 events pushed AQI into hazardous ranges across the South Bay, we saw a distinct spike in Mountain View calls specifically about return duct contamination. Fine PM2.5 particles embed in settled dust and recirculate when the system restarts. We clean return trunks and branch lines thoroughly, and we’ll show you the camera footage so you can see what came out. Full system cleaning with antimicrobial treatment, when needed, runs $650-$950.
Video Inspection
Every Bellows job includes video inspection, but we also offer standalone video inspection for Mountain View homeowners who want to assess their duct condition before committing to full cleaning. This is common among buyers in Monta Loma and Rex Manor who suspect original ductwork but need documentation. Our cameras navigate fiberglass duct board, galvanized metal, and flexible ductwork, and we provide the footage on request. A standalone inspection runs $150-$250, credited toward cleaning if scheduled within 30 days.
How does Mountain View’s coastal fog affect my ducts more than in Sunnyvale or Santa Clara?
Mountain View sits directly in the path of marine-layer fog that pushes inland through late fall and winter, carrying higher moisture loads into attic-mounted duct systems than you’ll see inland. This accelerates fiberglass duct board degradation and fosters mold colonization in older homes, particularly in Monta Loma and Rex Manor where 1950s-60s systems remain in service. We see the pattern most clearly in homes off Rengstorff Avenue, where fog intrusion through deteriorated attic seals has destroyed liner integrity.
How often should I have my ducts cleaned in Mountain View given the wildfire smoke risk?
For Mountain View homes, we recommend duct inspection every two to three years under normal conditions, and cleaning within one to two months after any major wildfire smoke event that pushed local AQI above 150. The 2020 and 2021 fire seasons demonstrated that standard HVAC filters don’t stop fine PM2.5 infiltration, and embedded particulate continues recirculating long after outdoor air clears. Homes with original ductwork or known attic moisture issues may need more frequent attention. Call (855) 401-6006 and we’ll assess your specific situation.
Dryer Vent Cleaning in Mountain View
Dryer vent cleaning in Mountain View typically runs $149-$219 for standard residential jobs, with most completed in a single visit. We’re familiar with the tight alley-load access in Rex Manor townhomes and the shared vent chases in 1980s garden apartments near Rengstorff Avenue. Our Dryer Vent Cleaning team brings compact equipment suited to constrained spaces, and we coordinate access ahead of arrival so we’re not blocking your neighbor’s garage.
Vent Cleaning & Lint Removal
Lint compaction is the obvious fire risk, but in Mountain View there’s a secondary concern. The marine-layer fog that rolls through from late fall into winter pushes moisture into attic-mounted vent runs, particularly in homes with unconditioned attic space. That moisture binds with lint to form dense, adhered blockages that standard brushes won’t touch. We use professional-grade Rotobrush and Nikro equipment to break up these formations and extract them completely. Standard residential vent cleaning runs $149-$219.
Vent Rerouting
Many Mountain View homes, especially the postwar ranches built for Lockheed and Moffett Field workers, have dryer vent runs that were never designed for modern appliance airflow. Too long, too many bends, terminating in enclosed crawl spaces or running through unconditioned attics where marine-layer moisture accelerates degradation. We reroute these systems to meet current IRC codes - shorter runs, proper slope, exterior termination with adequate clearance. This is one of our most called-for services in the 94040 and 94041 ZIPs, where original configurations simply weren’t built for today’s equipment loads. Vent rerouting typically runs $249-$449.
Bird Guard Installation & Vent Cap Replacement
Mountain View’s mature tree canopy and proximity to open space near the Bay attract nesting birds and small animals. A missing or damaged vent cap is an open invitation. We install Guardsman bird guards and code-compliant vent caps that prevent intrusion while maintaining proper airflow. For apartment complexes near Rengstorff Avenue with multiple units sharing chase walls, we can spec and install protective hardware across the building’s vent terminations. Vent cleaning with bird guard or cap replacement runs $189-$289.
Do you service townhomes with rear alley access in Mountain View’s Rex Manor area?
Yes, we work in Rex Manor townhomes regularly and coordinate ahead for alley-load access and parking. Our equipment is compact enough for tight clearances, and our technicians are experienced with the security gates and confined spaces common in these properties. We’ll confirm access details when you call so we’re not blocking your neighbor’s garage on arrival.
Can you reroute a dryer vent if it’s too long or has too many bends in an older Mountain View home?
Yes, vent rerouting is one of our most common services in Mountain View’s postwar housing stock. Many 1950s-60s homes in Monta Loma and near Rengstorff Avenue have vent runs that exceed IRC length limits or terminate in enclosed spaces. We redesign the route for proper airflow and code compliance, usually in a single visit. Call (855) 401-6006 for an assessment - we’ll show you the camera footage and quote the exact price before we start.
HVAC Cleaning in Mountain View
HVAC cleaning in Mountain View typically costs between $450 and $850 for a full system service, with most jobs completed in a single visit. We’re familiar with the specific challenges Mountain View homes face - from the aging aerospace-era ductwork in Monta Loma to the moisture issues that plague attic-mounted systems near the Bay. Our HVAC Cleaning technicians use Abatement Technologies portable HEPA units for containment and explain exactly what your system needs, not what a commission structure demands.
Evaporator Coil Cleaning
The evaporator coil in your Mountain View air handler works constantly against our mild but humid climate. Marine-layer moisture from the Bay pushes humidity levels high through fall and winter, and a dirty coil can’t shed condensation properly. That means reduced cooling, ice formation, and eventually compressor strain. In homes near Moffett Federal Airfield, we’ve also found wildfire smoke residue coating coils after the 2020 and 2021 seasons - a layer standard filter changes won’t touch. We clean coils with foaming agents and low-pressure rinse, then verify airflow recovery. Standalone evaporator coil cleaning runs $180-$320.
Blower Cleaning
Your blower motor and wheel move every cubic foot of air in your Mountain View home. When dust cakes the blades, balance suffers and bearings wear prematurely. In older Monta Loma and Rex Manor homes with decades of accumulated debris, we’ve measured blower wheels carrying two to three times their design weight. We remove the assembly, clean each blade, lubricate sealed bearings where accessible, and reassemble with torque to manufacturer spec. Blower cleaning and balance check runs $150-$280.
Air Handler Cleaning
The air handler is where your Mountain View home’s air is born - and where mold takes hold if moisture lingers. In 1950s-60s ranch homes with attic-mounted handlers, we’ve found standing water in drain pans, deteriorated insulation lining the cabinet, and microbial growth spreading to supply ducts. Our air handler service includes pan and drain line cleaning, cabinet sanitizing, and replacement of degraded insulation. For homes in the 94043 ZIP near the Superfund study area, we pay particular attention to sealing the cabinet against attic particulate infiltration. Air handler cleaning with drain service runs $200-$380.
Does the Moffett Field Superfund site affect my home’s indoor air quality in 94043?
The EPA’s Middlefield-Ellis-Whisman Superfund Study Area does not typically cause indoor air quality problems in 94043 homes through vapor intrusion at levels requiring remediation. However, residents near Moffett Federal Airfield are understandably more alert to indoor air quality issues than homeowners in neighboring Sunnyvale or Santa Clara, and we respect that awareness. Our HEPA-contained cleaning protocols and pre/post camera documentation give you a verifiable record of your duct condition, independent of any external environmental concerns.
Will cleaning my evaporator coil help with Mountain View’s wildfire smoke residue?
Yes, if smoke particulates have infiltrated your system, the evaporator coil is often where they concentrate. The sticky residue traps subsequent dust and reduces heat transfer. Cleaning restores efficiency and removes the reservoir that would otherwise continue recirculating fine particles. For Mountain View homes affected by repeated fire seasons, we recommend coil inspection annually and full cleaning after any extended AQI event above 150. Call (855) 401-6006 for a free assessment.
Duct Repair & Sealing in Mountain View
Duct repair and sealing in Mountain View typically costs $280-$450 for most single-system residential jobs, with larger or more complex work reaching $600-$800. We’re Bellows Air Duct & Vent Co., and our Duct Repair & Sealing crew has worked on the specific post-WWII ranch homes in Monta Loma, the garden apartments along Rengstorff Avenue, and the original galvanized systems that are still in service after sixty-plus years. We use mastic sealant and mechanical fasteners, not hardware-store foil tape that peels off in three years.
Duct Sealing
Sealing is often the smartest money you can spend on an older Mountain View home. In neighborhoods like Rex Manor and Monta Loma, we regularly find 25-40% conditioned air loss through gaps at joints, seams, and register boots. We use professional-grade mastic sealant and metal-backed tape. A typical duct sealing job in Mountain View runs $280-$450 for a single-system home. We camera-inspect before and after, so you see the difference.
Metal Duct Repair
This is where our team shines. Original galvanized sheet-metal ductwork from the 1950s-60s is built to last, but the crimped joints fail after 60+ years of thermal expansion. The marine-layer fog that rolls through Mountain View’s 94043 ZIP from October through March accelerates rust at these seams. We re-crimp, re-seal with mastic, and add mechanical fasteners where the original connections have fatigued. Metal duct repair in Mountain View typically runs $320-$580 depending on accessibility and extent of damage. Full replacement is rarely necessary if caught before rust-through.
Duct Insulation
Unconditioned attics in Mountain View get hot in summer and cold in winter. Ducts without proper insulation - or with degraded fiberglass batting - bleed energy year-round. We install new foil-faced duct insulation or replace the duct entirely if the liner has delaminated. In Monta Loma homes with original fiberglass duct board, we often find the liner has turned to powder from decades of moisture cycling. That’s not a sealing job anymore. We’ll tell you straight. Insulation work runs $400-$750 for a complete system wrap.
My 1958 Rex Manor home has original fiberglass duct board. Can those ducts be sealed effectively, or do they need full replacement?
It depends on the condition of the liner. If the fiberglass surface is intact and the binder hasn’t broken down from moisture exposure, we can seal the joints and penetrations with mastic and extend serviceable life by years. If the liner is delaminating, flaking, or has active mold colonization - common in Mountain View’s fog-exposed attics - replacement is the honest recommendation. We camera-inspect and show you the footage before you decide.
After the 2020 CZU wildfire, smoke odor lingered. Will duct sealing stop smoke smells from returning?
Sealing prevents re-infiltration of outdoor smoke during future events, but it won’t remove particulate matter already deposited in your ductwork. If you still have residual odor, the ducts likely need professional cleaning first, then sealing to prevent recurrence. Mountain View’s position downwind of wildfire corridors means this is a recurring concern for South Bay homeowners. We camera-inspect to determine whether cleaning, sealing, or both are warranted, and we quote one flat price before starting.
Air Quality & Sanitizing in Mountain View
Air quality and sanitizing service in Mountain View typically runs $280-$650 for residential duct treatment, with most mold remediation and bacteria sanitizing jobs completed in a single visit. Our Air Quality & Sanitizing team covers Mountain View ZIP codes 94035, 94039, 94040, and 94041, with scheduling coordinated from our San Francisco Bay Area office. We know the difference between a 1962 ranch on Rengstorff Avenue with original galvanized ductwork and a 1990s garden complex near El Camino Real with shared HVAC chases that have never been professionally cleaned between tenant turnovers.
Mold Treatment
Mountain View’s marine-layer fog pushes moisture into attic-mounted duct systems from late fall through winter, and fiberglass duct board from the 1950s-70s soaks it up like a sponge. We treated a 1958 Rex Manor home in the 94043 ZIP with original fiberglass duct board that had mold colonization from marine-layer moisture. Using a Rotobrush with a HEPA vacuum and applying Abatement Technologies antimicrobial, we restored airflow and eliminated the musty odor in a single trip. Our mold treatment in Mountain View typically runs $340-$580.
UV Light Installation
UV-C light installation in Mountain View makes particular sense for homes with chronic moisture issues in attic ducts - the marine layer doesn’t quit, and UV lamps suppress mold and bacterial growth on the evaporator coil and in the plenum where cleaning tools can’t reach consistently. We install Aprilaire and Honeywell UV systems sized to your air handler’s CFM rating, not a generic stick-on unit that looks impressive and does little. For Mountain View’s older ranch homes with single-stage furnaces, UV installation typically runs $380-$650 including the lamp, ballast, and installation.
Whole-Home Air Purifier Installation
Whole-home air purifier installation in Mountain View addresses what duct cleaning alone cannot - continuous filtration of incoming particulate during wildfire events and high-pollen seasons. We install Aprilaire media air cleaners and Honeywell electronic air cleaners, integrated into your existing return ductwork so every cubic foot of air passes through the filter, not just the air near a portable unit. Installation typically runs $480-$920. For homes near Highway 101 or former orchard sites where residual pesticide particulate may be a concern, this is a permanent solution that operates whenever your HVAC runs.
Does the Moffett Field Superfund site affect air quality inside my home in Monta Loma?
The EPA’s Middlefield-Ellis-Whisman Superfund Study Area does not mean indoor air in Monta Loma is automatically contaminated, but it does mean residents here ask sharper questions about VOC and particulate pathways than homeowners in most other South Bay neighborhoods. We address this with HEPA source-containment protocols during duct cleaning and by explaining exactly what our process removes versus what it cannot. If you have specific concerns about groundwater vapor intrusion, we can refer you to environmental testing specialists.
Why does my duct system have a musty smell only in winter?
The musty winter smell in Mountain View homes comes from marine-layer fog moisture penetrating attic vents and condensing on cool duct surfaces, activating dormant mold spores and bacterial biofilm that stay quiet during dry summer months. This seasonal pattern is especially common in neighborhoods like Rex Manor and Monta Loma with original fiberglass duct board in unconditioned attics. The solution is not masking the odor - it’s removing the biological growth and addressing the moisture pathway that feeds it.
Brands We Service in Mountain View
We stock parts and equipment from Honeywell, Aprilaire, and Abatement Technologies - the same brands serious HVAC contractors specify, not consumer-grade alternatives. Most replacement components are available without special order, which means we complete repairs in a single visit rather than leaving you waiting for a part to arrive. For a full list of brands and equipment lines, see our brands.
Pricing for Air Duct Cleaning in Mountain View, CA
| Service | Typical range in Mountain View |
|---|---|
| Standard residential air duct cleaning (single system, up to 12 vents) | $350 - $550 |
| Large home or dual-zone system (13-20 vents) | $550 - $750 |
| Full system cleaning with antimicrobial treatment | $650 - $950 |
| Standalone video inspection | $150 - $250 |
| Commercial multi-unit property (per HVAC zone) | $400 - $700 |
| Standard residential dryer vent cleaning | $149 - $219 |
| Dryer vent cleaning with bird guard or cap replacement | $189 - $289 |
| Dryer vent rerouting (per IRC code compliance) | $249 - $449 |
| Evaporator coil cleaning (standalone) | $180 - $320 |
| Blower cleaning and balance check | $150 - $280 |
| Air handler cleaning with drain service | $200 - $380 |
| Full HVAC system cleaning | $450 - $850 |
What pushes a job toward the higher end: original 1950s-60s duct board requiring delicate handling, extensive mold remediation, post-wildfire particulate removal, or difficult attic access common in older Mountain View ranches. What keeps costs down: accessible ductwork, recent prior cleaning, and straightforward vent counts. We disclose your exact price before we lift a single tool - the number on the phone is the number on the invoice.
Neighborhoods We Serve in Mountain View
We work throughout Mountain View, with particular familiarity in areas where the housing stock and environmental conditions create specific duct cleaning needs. Most calls in the city receive same-day or next-day scheduling.
- Monta Loma - 1950s ranch homes with original fiberglass duct board and galvanized metal systems
- Rex Manor - Similar vintage to Monta Loma, many homes built for Lockheed and Moffett Field workers
- Old Mountain View - Mixed-era housing near downtown, including older apartments and converted duplexes
- Whisman Station area - 1980s-90s multi-family developments with shared HVAC infrastructure
- Permanente Creek corridor - Established neighborhoods with mature trees and aging infrastructure
Service Area - Cities Near Mountain View
Our crews serve Mountain View locally, with dispatch and scheduling coordinated from our San Francisco Bay Area office. We also work in Los Altos, Los Altos Hills, Sunnyvale, Stanford, and Palo Alto. If you’re unsure whether your address falls within our service area, call (855) 401-6006 and we’ll confirm.
Serving Mountain View, CA - Our Local Coverage Area
Bellows Air Duct & Vent Co. of California crews serve Mountain View and the communities around it; dispatch is coordinated from our San Francisco Bay Area office. The map shows the Mountain View coverage area; if your address is on it, we can help.
Also serving nearby: Mountain View, CA, Los Altos, CA, Los Altos Hills, CA, Sunnyvale, CA, Stanford, CA, Palo Alto, CA.
FAQs About Air Duct Cleaning in Mountain View
Most residential duct cleaning and sealing work does not require a permit in Mountain View, but duct replacement or modifications to gas furnace connections may trigger building department review. We handle permit requirements when they apply and can advise during your free estimate. If your HOA has specific contractor requirements, let us know when you call and we’ll provide whatever documentation they need.
Most Mountain View appointments are scheduled within one to two business days, with flexibility for homes in all ZIP codes we cover: 94035, 94039, 94040, and 94041. We don’t promise same-day dispatch because duct cleaning is a scheduled job that requires proper preparation, but we do answer calls live 24 hours a day and will find the first available slot that works for your calendar.
Yes, we regularly coordinate with HOAs and property managers for multi-unit buildings, particularly in garden-style apartment complexes along Rengstorff Avenue and Middlefield Road. We carry the insurance documentation most commercial leases require, and we can schedule work to minimize disruption to tenants. For shared HVAC chases, we isolate individual units and document conditions for property records.
Call (855) 401-6006 for a free estimate. We’ll answer live, ask the right questions about your Mountain View home, and give you an honest price before we start. No bait coupons, no surprises on the bill, and every job backed by our 90-Day Done Right Promise in writing.
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 Mountain View Customers Say
"The job was done well and the house smells better. There was some dust knocked loose around a couple of the registers that I had to wipe down afterward."
- Jodi Ackerman"Booked online at nine at night, got a confirmation, a reminder, and a call when they were fifteen minutes out."
- Renee Fletcher"They ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Katie Sullivan