Negative-pressure cleaning
The system is put under negative pressure before any agitation starts, so loosened dust and debris are drawn into containment and out of the house, not blown into the rooms.
Ductwork is the part of a heating and cooling system nobody sees, which is why it is the part that goes longest without attention. In Fort Collins, ducts accumulate dry Front Range dust, pollen, pet hair, renovation debris and — after a smoke season — fine particulate that a filter never caught. Cleaning removes that build-up from the supply and return runs so the air your family breathes is not passing through decades of dust first. DNA Refrigeration Heating & Cooling cleans ductwork across Fort Collins. Call (970) 932-2324 any time.
Duct cleaning is the mechanical cleaning of the supply and return duct runs, the registers and the air handler cabinet, under negative pressure so loosened debris is drawn out of the house rather than blown into it. It is a cleaning job, not a sealing job and not a repair job — each of those is a different service, and an honest visit says which one your ducts actually need.
The Fort Collins case for cleaning is specific. The city is dry and dusty, with a design wet bulb of about 60°F and very low latent load, so dust — not mould from humidity — is the main thing accumulating in ducts here. Nearly half the housing stock is pre-1990, which means a large share of the city's ductwork is 30-plus years old and has never been cleaned; much of it was retrofitted into houses never built for ducts, with runs that are hard to reach and joints that were never sealed. Wildfire smoke adds a seasonal load: after a smoke summer, ducts carry fine particulate that no filter fully caught, and the Cameron Peak Fire in 2020, at 208,663 acres, is the reason post-smoke duct cleaning is a real service here. The dated cost figure, checked November 2026: duct cleaning in Fort Collins ran $343–$398 per 1,200 square feet (HomeYou, 24 October 2026). That is a per-area market figure, not a quote — your price depends on the size of the system, the number of runs and their condition.
Duct cleaning costs in Fort Collins, at a glance.
| Item | Published figure | Source / note |
|---|---|---|
| Duct cleaning, per 1,200 square feet | $343–$398 | HomeYou, 24 October 2026 |
| Your price | Depends on the size of the system, the number of runs and their condition | Written quote follows an inspection |
A cleaning visit should leave the ducts visibly cleaner, the airflow measurably better, and the house no dustier than when we arrived. Here is what goes into that.
The system is put under negative pressure before any agitation starts, so loosened dust and debris are drawn into containment and out of the house, not blown into the rooms.
Both sides of the system are cleaned. Cleaning the supply runs and ignoring the returns — or the other way round — leaves half the problem in place.
Registers are removed and cleaned, and the air handler cabinet is cleaned where accessible, because the cabinet is where dust, filter bypass and coil debris collect.
After a remodel, ducts carry drywall dust, sawdust and construction debris that a filter will never fully catch. Post-renovation cleaning is one of the clearest cases for the service, and it should happen before the new system runs a full season on dirty ducts.
After a wildfire smoke summer, ducts carry fine particulate that no filter fully caught. A post-season clean, with the filter changed at the same time, resets the system before the next season.
We show you what came out of the ducts and measure airflow before and after, so the result is visible and measurable rather than a claim on an invoice.
Call (970) 932-2324 any time. Tell us the age of the house, whether there has been a renovation or a smoke season since the ducts were last cleaned — or whether they have ever been cleaned at all.
We inspect the ductwork, the registers, the air handler and the filter setup, and we look for the things cleaning cannot fix — leaks, disconnected runs and collapsed sections — so you are not sold a cleaning for a repair problem.
You get a written quote based on the size of the system and the number of runs. The dated market figure for context: $343–$398 per 1,200 square feet in Fort Collins (HomeYou, 24 October 2026).
The system is sealed and put under negative pressure, the runs are agitated and cleaned section by section, and debris is contained and removed from the house.
We show you what was removed, measure airflow, change the filter, and leave a written record of the condition of the ductwork — including anything that needs sealing or repair rather than another cleaning.
Call (970) 932-2324 any time. Tell us the age of the house, whether there has been a renovation or a smoke season since the ducts were last cleaned — or whether they have ever been cleaned at all.
High-volume vacuum that holds the system under negative pressure throughout the cleaning, so debris leaves the house.
Brushes and air whips that loosen dust and debris from duct walls without damaging the ductwork.
Cameras that show the inside of the runs before and after, so the result is visible rather than assumed.
Supply and return airflow measured before and after, to confirm the cleaning actually improved the system's breathing.
Registers removed, cleaned and refitted, with damaged or missing ones flagged.
Leakage measured so a cleaning is not sold where sealing or repair is the real need.
Midtown's 1950s–1970s ranches often carry ductwork that is as old as the house and has never been cleaned. The runs were added years after construction, they are hard to reach, and they have had decades to accumulate dust, pollen and pet hair.
What good work addresses: a full negative-pressure clean of supply and return runs, with the air handler cabinet and registers included, and a leakage test afterwards so any sealing need is named rather than hidden.
Call (970) 932-2324 →common duct problems in Old Town homes's pre-1930 homes are renovated constantly, and every renovation puts drywall dust and sawdust into ducts that were retrofitted into spaces never designed for them. Running a new or newly serviced system on renovation-filled ducts circulates that dust for a season.
What good work addresses: cleaning after the renovation dust has settled, before the system runs a full season on it, with the filter changed at the same time.
Call (970) 932-2324 →After a wildfire smoke summer, a large two-storey home's ducts carry fine particulate that the filter never fully caught. Rigden Farm's 2000–2011 homes are now old enough that their ducts have seen several smoke seasons.
What good work addresses: a post-season clean with the filter changed at the same time, so the system enters the next summer clean instead of carrying last year's smoke load into it.
Call (970) 932-2324 →Duct cleaning is a straightforward service that is often oversold. These are the questions that keep it honest.
Ask a pro →Visible dust at the registers, a musty or dusty smell when the system runs, a recent renovation, or a smoke season since the last clean are the honest signs. If the ducts were cleaned recently and nothing has changed, they probably do not need it again — and we will say so.
The dated market figure, checked November 2026, is $343–$398 per 1,200 square feet (HomeYou, 24 October 2026). Your price depends on the size of the system, the number of runs and their condition — which is why the written quote follows an inspection.
No, and the difference matters. Cleaning removes debris from inside the ducts. Sealing closes leaks in the ductwork so conditioned air reaches the rooms. A house can need either, both, or neither, and the inspection is what decides.
It can help, by removing accumulated dust, pollen and smoke particulate from the ductwork. It is not a cure for allergies, and it does not replace filtration — a MERV 13 media filter and a clean duct system work together, not instead of each other.
“These guys rock! Anytime we need something, Denis pops in and fixes it like it was nothing. Everyone from their crew has a great attitude, and we won’t call anyone else for our heating, cooling, or other general maintenance work! Read the first sentence again.”
Mike DeeGoogle review · a year ago
“Great Company great service I use them for all my refrigeration and hvac needs”
David CheelyGoogle review · a year ago
| Question | Answer in brief |
|---|---|
| How do I know if my ducts need cleaning? | Visible dust at the registers, a musty or dusty smell when the system runs, a recent renovation, or a smoke season since the last clean are the honest signs. |
| How much does duct cleaning cost in Fort Collins? | The dated market figure, checked November 2026, is $343–$398 per 1,200 square feet (HomeYou, 24 October 2026). |
| Is duct cleaning the same as duct sealing? | No, and the difference matters. |
| Will duct cleaning fix my allergies? | It can help, by removing accumulated dust, pollen and smoke particulate from the ductwork. |
The dated market figure, checked November 2026, is $343–$398 per 1,200 square feet (HomeYou, 24 October 2026). That is a per-area market figure, not a quote — your price depends on the size of the system, the number of runs and their condition.
There is no fixed schedule. The honest triggers are a renovation, a wildfire smoke season, visible dust at the registers, or ducts that have never been cleaned in a 30-plus-year-old house. A house with none of those does not need cleaning on a calendar.
No. Cleaning removes debris from inside the ducts; sealing closes leaks so conditioned air reaches the rooms. They are different jobs, quoted separately, and a house can need either, both or neither.
It can, where dust build-up or a clogged return is restricting airflow. But if the problem is undersized ducts, a disconnected run or a leak, cleaning will not fix it — the inspection is what separates a cleaning problem from a repair or sealing problem.
Tell us the age of the house and when the ducts were last cleaned — if ever — and we will inspect them, quote the cleaning in writing, and tell you straight if sealing or repair is the real need. Open 24 hours, 7 days a week.
Schedule Duct Cleaning (970) 932-2324 →Call (970) 932-2324 any time, day or night. We are open 24 hours, 7 days a week, from 2757 Sternwheeler Dr, Fort Collins, CO 80524. Phone is the way to reach us — there is no email address for the business, so call any time, day or night — we are open 24 hours, 7 days a week.