Fast, Reliable Air Duct Cleaning Across Four Corners
Air duct cleaning in Four Corners, MD typically runs $320–$580 for a full residential system and most jobs are completed in a single afternoon. If you’re noticing musty odors, uneven heating, or allergy flare-ups in your 20901 home, the problem often traces back to ductwork that was never designed for modern climate demands. We’re Apex Air Duct Cleaning Maryland, and our Air Duct Cleaning team has spent 14 years working the mid-century homes that define this Montgomery County pocket — from the split-levels off University Boulevard to the brick ranchers lining Wilmett Road. Robert Garcia, our owner and lead technician, handles every job personally. Call (855) 301-6549 for a free estimate with same-week scheduling to Four Corners.

Why Apex Air Duct Cleaning Maryland Is Four Corners’s Preferred Air Duct Cleaning Company
We’ve built our reputation one 20901 home at a time. Our 254 verified reviews average 4.7 stars, and a meaningful share come from repeat customers in Four Corners neighborhoods who’ve watched us navigate the quirks of their specific duct layouts. Robert doesn’t dispatch crews — he’s the technician who arrives with the Rotobrush and Nikro equipment, who crawls your crawlspace, and who decides whether your 1960s galvanized runs can be safely cleaned or need a different approach entirely.
Response time matters here. Four Corners sits inside the Beltway corridor where we routinely schedule, and most 20901 customers get service within 2–4 business days — faster for dryer vent cleaning calls that present fire risks. We know the local housing stock: the Cape Cods near Four Corners Elementary, the split-levels climbing toward Hillandale Road, the ranchers with original heating-only systems that got AC crammed in during the 1980s. That familiarity saves time and prevents damage.
Our Abatement Technologies containment systems prevent cross-contamination during cleaning — critical in older homes where disturbed debris can migrate through joint gaps into living spaces. We don’t spray generic treatments and leave. We inspect, document, clean, and seal.
Our Air Duct Cleaning Services in Four Corners
Residential Duct Cleaning
Four Corners homes built 1950–1975 weren’t designed for the air volume modern HVAC systems move. We adapt our approach to each layout — whether that’s a pristine Cape Cod or a split-level with 1970s basement retrofits mixing fiberglass duct board with sagging flex. A typical residential cleaning in Four Corners runs $320–$480 for a single-system home, with full-system cleaning recommended every 3–5 years given our pollen-heavy tree canopy and summer humidity.
Commercial Duct Cleaning
Small commercial properties along University Boulevard and the professional suites near the Four Corners intersection see different contamination patterns — higher occupancy loads, more frequent filter changes needed, and often rooftop units with long flex-duct drops. We scale our Nikro extraction systems for these jobs, with commercial pricing in Four Corners starting around $580 for smaller suites and scaling based on system complexity.
Supply Duct Cleaning
Supply runs in 20901’s older homes often tell the real story. Original galvanized lines with deteriorated mastic seals pull unconditioned attic air directly into your breathing stream. We use video inspection to map these leaks before cleaning, then apply proper sealant after extraction. Supply-only cleaning in Four Corners typically falls between $180–$290 when performed as a standalone service.
Return Duct Cleaning
Return systems work hardest in Four Corners homes — they’re the intake point for oak and maple pollen, for dust from original hardwood floors, for pet dander in multi-generational households. Clogged returns force your HVAC to work longer cycles, spiking summer electric bills when humidity already strains the system. Return duct cleaning here runs $200–$320, with combined supply/return packages starting at $420.
Full System Cleaning
This is our recommended service for most Four Corners homes. We clean every accessible duct segment, the plenum, registers, and grilles, plus the HVAC cabinet and evaporator coil if accessible. For the patchwork systems common in 1970s-renovated split-levels, full-system cleaning lets us assess compatibility across mixed materials and identify where rigid metal meets fiberglass duct board meets flex — transitions that trap debris and harbor mold. Full system cleaning in 20901: $420–$580.
Video Inspection
Before we touch a tool, we look. Our Rotobrush video inspection reveals interior corrosion scale, hidden mold colonies, collapsed flex sections, and deteriorated sealant — the conditions that determine whether cleaning is viable or if duct replacement makes more sense. Video inspection alone: $120–$180, credited toward your cleaning if you proceed. In Four Corners’s legacy housing, this step isn’t optional — it’s how we prevent damaging fragile systems.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Four Corners
We maintain active working relationships with Aprilaire and Honeywell for whole-home air quality systems, and we stock Guardsman sanitizing treatments for post-cleaning application when microbial contamination warrants it. For Four Corners customers with existing Aprilaire media air cleaners or Honeywell electronic air cleaners, we can service these units during the same appointment — no waiting on parts, no referral runaround. Our Abatement Technologies HEPA containment equipment protects your home during the process, not after. If your system includes these brands, mention it when you call (855) 301-6549 and we’ll confirm compatibility before arriving.
Common Air Duct Cleaning Problems We See in Four Corners Homes
- Asbestos-containing mastic from original construction. Ductwork sealed with 1950s-era asbestos-bearing mastic cannot be safely cleaned without abatement procedures. We identify this during video inspection and advise accordingly — disturbing it without proper containment violates EPA protocol and endangers your household.
- Flex-duct retrofits that collapse or tear. The narrow flex-duct runs added to 20901 crawlspaces for AC retrofits degrade after decades of Maryland humidity exposure. Our Rotobrush systems are calibrated for gentle agitation, but we always inspect first — tearing a collapsed flex section creates a new leak you’ll feel in your utility bill.
- Interior corrosion scale in galvanized ducts. Original galvanized runs develop oxidation that flakes into the airstream after cleaning if joints aren’t properly sealed afterward. We apply fresh mastic to all accessible seams before closing up — a step low-bid competitors skip.
- Heavy spring pollen loading from the tree canopy. Four Corners’s mature oak and maple canopy dumps pollen masses that coat evaporator coils and duct interiors faster than in open suburban developments. We see this every April — and we clean it thoroughly, not superficially.
Pricing for Air Duct Cleaning in Four Corners, MD
Here’s what air duct cleaning costs in the 20901 market, based on 14 years of Four Corners jobs:
| Service | Typical Range |
|---|---|
| Video Inspection | $120–$180 |
| Supply Duct Cleaning Only | $180–$290 |
| Return Duct Cleaning Only | $200–$320 |
| Full Residential System Cleaning | $420–$580 |
| Commercial Duct Cleaning (small) | $580–$950 |
| Dryer Vent Cleaning (add-on) | $120–$180 |
What moves you within these ranges? System accessibility (crawlspace vs. basement), contamination severity (light dust vs. mold colonization), and material complexity (uniform rigid duct vs. patchwork mixed systems). Homes with 1970s-era basement retrofits requiring careful navigation of fiberglass duct board and flex transitions trend toward the higher end — more labor, more precision, more time on-site.
We don’t quote blind. Every estimate starts with a free on-site assessment where Robert evaluates your specific layout. No pressure to book — just honest guidance on whether cleaning, repair, or partial replacement serves you best. Call (855) 301-6549 to schedule.
We Also Serve Cities Near Four Corners
Our service radius covers the full Montgomery County corridor — we regularly work in Silver Spring to the south, Hillandale to the east, White Oak to the northeast, and Adelphi just across the Prince George’s line. If you’re near the Four Corners border, call (855) 301-6549 and we’ll confirm coverage.
Serving Four Corners, MD — Our Local Coverage Area
We’re based in the Four Corners 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 — Air Duct Cleaning in Four Corners
Cloth tape from this era has usually degraded to the point of crumbling on contact, so we treat these systems with extra care during agitation and replace failing seals with modern mastic afterward. Our Rotobrush video inspection first identifies which tape sections are intact versus already detached — we adjust our approach accordingly. If the tape contains asbestos fibers (common in 1950s applications), we halt and recommend proper abatement before any cleaning proceeds. Call (855) 301-6549 and Robert will assess your specific situation during a free estimate.
Yes, but these patchwork layouts require customized cleaning protocols that take longer than uniform systems. Last spring, our crew tackled a 1963 brick rancher on Wilmett Road where the original heating-only ductwork had been patched into finished basement runs with a mix of fiberglass duct board and sagging flex. We used our Rotobrush video inspection to locate a hidden mold colony in the crawlspace branch serving the family room, then sealed all joint gaps with mastic after full-system cleaning. Expect $480–$580 for these mixed-material jobs in Four Corners. Call (855) 301-6549 to schedule an assessment.
No — exterior asbestos wrap creates an exposure risk during any duct disturbance, and cleaning is not worth the health hazard or potential liability. We identify asbestos-containing materials during our initial video inspection and refer you to certified abatement contractors before any Apex work proceeds. In Four Corners’s 1950s–1960s housing stock, we encounter this several times yearly — it’s not rare, and we’d rather lose a job than create a dangerous situation. Call (855) 301-6549 for honest guidance on your specific system.
Your ducts sweat because Maryland’s DC-corridor humidity pushes summer dew points above 70°F, and your original heating-only ductwork — likely running through an unconditioned crawlspace or basement — lacks adequate insulation for cooled air. When 55°F supply air moves through 75°F humid crawlspace air, condensation forms on the exterior, soaking surrounding insulation and creating mold conditions. This is epidemic in 20901’s ranchers and split-levels. Cleaning removes existing mold and debris, but persistent sweating requires duct insulation upgrades or dehumidification — we’ll tell you honestly which you need. Call (855) 301-6549 for a free evaluation.
Absolutely — we work Hillandale Road regularly and know the housing stock block by block. Your home likely shares the same vintage and duct challenges: original galvanized runs, possible 1970s basement retrofits, the same pollen loading from the mature canopy. Robert handles every job personally, so you’ll get the same technician, the same equipment, and the same thoroughness your neighbor experienced. Mention the address when you call (855) 301-6549 — we’ll pull notes from nearby jobs to speed our assessment and may offer same-week scheduling.
Written by Robert Garcia, Owner at Apex Air Duct Cleaning Maryland, serving Four Corners and the Baltimore-Washington corridor since 2011.