Air Duct Cleaning in Denver - One Flat Price, Before-and-After Photos

Fast, Reliable Air Duct Cleaning Across Denver

Air duct cleaning in Denver typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We dispatch from our Denver office and serve homes from Stapleton to Cherry Creek, Golden Triangle to Park Hill. Call (361) 326-5060 for a free estimate with a written price that won’t change once our technician arrives.

Call (361) 326-5060

Denver’s semi-arid climate and aging housing stock create a specific set of duct problems you won’t find in humid coastal cities. We’ve been working here long enough to know the difference between a dust-choked return in a 1960s ranch near Monaco Parkway and the rust-flaking galvanized steel ducts still running through Capitol Hill bungalows built before World War II. Our crews carry equipment for both. When you schedule with Hollis, you get a background-checked, uniformed technician who arrives inside the quoted window, prices the job in writing before touching anything, and leaves the site clean. That’s The Garrison Standard, and it’s how we operate at every Denver home.

Why Hollis Air Duct Cleaning Is Denver’s Preferred Air Duct Cleaning Company

We’ve built our reputation in Denver on operational specifics, not slogans. Our technicians show up uniformed and on time because The Garrison Code requires it, not because it’s a nice idea. Every job gets a written price before work starts, and that number does not move at the door.

Our Denver customers come back because the 365-Day Done Right Promise is backed in writing, not implied. If the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.

Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday morning to schedule.

We know the local terrain: the dry-air dust accumulation in Highlands Ranch, the radon concerns in homes near the foothills, the original ductwork in Washington Park that predates modern sealing standards. This isn’t generic training. It’s Denver-specific experience that changes how we approach each job.

Ductwork Cleaning in Denver

Ductwork Cleaning in Denver addresses the fine, abrasive dust that accumulates in forced-air systems operating in one of the driest urban climates in the United States. Most Denver homes rely on original or aging duct systems, and the combination of low humidity, frequent winter inversions, and high static electricity means particulate matter clings to duct walls more aggressively than in moister regions. A typical residential ductwork cleaning in Denver runs $350 – $550 for a standard single-family home, with larger or more complex systems reaching $650.

Rotary Brush and Negative-Air Methods

We use Rotobrush rotary brush systems for light to moderate buildup and Nikro negative-air machines for heavier contamination or post-renovation jobs. The rotary brush scrubs duct walls mechanically while a vacuum extracts debris at the point of contact. Negative-air method creates suction throughout the entire system, pulling loosened material into a HEPA-filtered collector. Our technician selects the approach based on what your ducts contain, not what costs less to run.

Whole-System vs. Partial Cleaning

A whole-system cleaning covers supply ducts, return ducts, trunk lines, and registers. Partial cleaning, sometimes requested for budget reasons, focuses on returns where Denver’s dry dust concentrates most heavily. We price both options in writing before starting, and we’ll show you the video inspection so you understand why one approach fits your situation better than the other.

Air Duct Inspection in Denver

Air Duct Inspection in Denver uses video camera systems to document the interior condition of ductwork before any cleaning begins. Given the age of much of Denver’s housing stock and the specific problems of dry-climate dust accumulation plus radon distribution concerns, an inspection often reveals issues a homeowner cannot detect from register airflow alone. A standalone video inspection in Denver typically costs $150 – $250, though we waive this fee when you proceed with a full cleaning.

What the Camera Reveals

Our inspection cameras identify rust scale in pre-1980 galvanized steel, collapsed flexible duct sections from attic work, disconnected joints leaking conditioned air into crawl spaces, and rodent or insect debris in unused lines. In Denver’s older neighborhoods, we regularly find interior rust in early-1900s ducts that appears as orange-brown flakes on the camera feed. This isn’t mold, it’s metal degradation, and it requires a different response than standard cleaning.

Inspection as Documentation

We record the inspection and provide before-and-after footage of your own ducts, not stock images. This matters in a market where bait-and-switch pricing has burned too many homeowners. You see what we saw, you see what we removed, and you have documentation of the work performed under the 365-Day Done Right Promise.

Trusted Brands We Service in Denver

We clean and service duct systems connected to filtration and air handling equipment from Honeywell, Aprilaire, and Guardsman, and we stock replacement media and parts for these brands at our Denver office. This means faster turnaround when your system needs more than cleaning, whether that’s a new filter housing, upgraded filtration, or duct sealing with mastic. Our equipment roster includes Rotobrush rotary systems and Nikro negative-air machines, the same professional-grade tools commercial crews use, not hardware-store gear. When we recommend a product or replacement, we explain what it does for the air moving through your specific Denver home, not just what the brochure says.

Common Air Duct Cleaning Problems We See in Denver Homes

• Dry-climate dust compaction: Denver’s 15 inches of annual precipitation means dust doesn’t bind with moisture and settle, it stays airborne, circulates, and compacts into hard layers on duct walls. Standard vacuuming won’t remove it; rotary brush or negative-air agitation is required.
• Radon distribution through leaky returns: Denver’s high radon levels enter basements and crawl spaces, and leaky return ducts pull that air into the circulation system. Cleaning alone doesn’t solve this, we also inspect for duct leakage and can recommend Duct Sealing in Denver to address the source.
• Rust and scale in pre-war galvanized steel: In Washington Park, Capitol Hill, and other central neighborhoods, original ducts from the 1920s – 1940s develop interior corrosion that flakes into the air supply. This shows up as orange-brown debris on registers and requires careful removal without damaging the remaining metal.
• Post-renovation contamination: Denver’s active remodeling market means drywall dust, insulation particles, and sawdust frequently enter ducts during kitchen and basement projects. We see this especially in post-1950s tract homes where contractors failed to seal registers during construction.

Pricing for Air Duct Cleaning in Denver, CO

We Also Serve Cities Near Denver

Our Denver office dispatches crews throughout the metro and beyond, including Boulder, Greeley, Fort Collins, and Colorado Springs. Each job receives the same written pricing, the same 365-Day Done Right Promise, and the same background-checked, uniformed technicians. Distance from our dispatch point may affect scheduling priority, but it does not affect the standard we apply.

FAQs About Air Duct Cleaning in Denver