Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
See the difference
Before
After
Before
After
Before
AfterHow Much Does HVAC Cleaning Cost in Thornton?
HVAC cleaning in Thornton typically costs $350 to $700 for a standard home, with most single-family houses landing near $475. That figure covers a full air duct cleaning with professional equipment, and it moves up from there when you add dryer vent cleaning, a second system, or duct repair. A small apartment can come in closer to $250, while a large two-furnace house with heavy debris can reach $1,100 or more. The written estimate is what sets your final price, and we give that estimate for free.
We’re Duct Cleaning Thornton, and we handle three things: air duct cleaning, dryer vent cleaning, and air duct repair. All three matter for this page, because the price of an HVAC cleaning in Thornton depends heavily on what the crew finds once the registers come off. A house with clean flex runs and a house with a crushed trunk line and fifteen years of drywall dust are not the same job, and we’d rather quote them honestly than pretend a flat rate covers both.
Key Takeaways
- Standard air duct cleaning in Thornton runs $350 to $700 for most homes.
- Dryer vent cleaning adds $125 to $225 when bundled with a duct cleaning.
- Duct repair, when needed, is priced by the section and usually adds $150 to $600.
- Homes with two HVAC systems cost more because both air paths get cleaned.
- Our technicians have up to 12 years of experience, and we run Rotobrush and Nikro equipment, not consumer-grade vacuums.
- Estimates are free. Call (888) 495-2236. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
HVAC Cleaning Cost Breakdown (2026)
Here’s how the numbers break down for a typical Thornton home. These are estimated ranges for the local market, not exact quotes. Your written estimate is the number that counts.
| Service | Typical Range in Thornton | What It Covers |
|---|---|---|
| Air duct cleaning, small home or condo (under 1,500 sq ft) | $250 – $400 | Supply and return runs, registers, main trunk, one system |
| Air duct cleaning, standard single-family home (1,500 – 2,500 sq ft) | $350 – $700 | Full air path, registers and grilles, negative-air containment during the job |
| Air duct cleaning, large home or two systems (2,500+ sq ft) | $700 – $1,100 | Both HVAC systems, all trunk and branch runs, registers on both floors |
| Dryer vent cleaning (added to a duct cleaning) | $125 – $225 | Full lint line from dryer to exterior termination, blockage cleared |
| Dryer vent cleaning (standalone) | $150 – $275 | Same scope, single service call |
| Duct repair – reconnecting a separated flex run | $150 – $300 | Re-seal and re-support a disconnected branch |
| Duct repair – replacing a section of damaged duct | $300 – $600 | Cut out and replace crushed or torn ductwork, re-tape and re-insulate |
| Register and grille cleaning, whole house | $75 – $150 | Remove, wash, and reinstall every supply and return grille |
What pushes a Thornton HVAC cleaning toward the top of those ranges? Square footage is the biggest driver, followed by the number of systems. A house with one furnace and one air handler is a simpler job than a two-story with a unit in the attic and a second in the basement. Duct material matters too: rigid metal ductwork cleans differently than flex, and older homes in Thornton sometimes have a mix of both because of additions and retrofits. Finally, how long it’s been since the last cleaning changes the labor. A home that’s never had its ducts touched takes longer than one cleaned a few years back, and we price for the time it actually takes.
What Affects HVAC Cleaning Pricing in Thornton
Every house is different, and the price should reflect that. Here are the factors that move the number most in this market.
- Number of HVAC systems. A single furnace and air handler is one air path. A house with a second system has a second set of trunk lines, branch runs, and registers, so the job roughly doubles in scope. We clean what’s there, and we price for both systems.
- Square footage and layout. A 1,200 sq ft ranch has short duct runs. A 3,000 sq ft two-story has long ones, plus a lot more registers. Long runs and lots of registers add time, and time is the largest part of the price.
- Duct condition. Crushed flex, separated joints, torn insulation, and disconnected branches are common in Thornton homes that have had additions or HVAC replacements over the years. Every one of those gaps pulls in unfiltered air. When we find damage, we can repair it in the same visit instead of sending you to a second contractor.
- Recent construction or renovation. Drywall dust is fine enough to ride through a filter and settle in the ductwork. If you’ve just finished a basement or remodeled a kitchen, expect a heavier cleaning than a house that’s been quiet for a decade.
- Contamination level. Pet dander, tobacco residue, and years of accumulated debris take more passes and more containment. We run Abatement Technologies negative-air and HEPA-filtration equipment on these jobs so displaced debris is captured instead of pushed into your living room.
- Access and equipment needs. A tight crawlspace or a duct system with limited access points means more setup time. That’s where professional equipment earns its keep, and it’s why a shop-vac and a coupon can’t do what a Rotobrush and a Nikro HEPA vacuum can.
How to Save on HVAC Cleaning
There’s no magic discount that makes a proper cleaning cheap. But there are real ways to keep the price reasonable without cutting corners on the work itself.
- Bundle the dryer vent. Adding dryer vent cleaning to a duct cleaning costs less than booking it separately, because the crew is already set up. It’s also the single most important add-on for safety: dryer vents are a leading cause of residential house fires, not a footnote.
- Do it before the problem gets expensive. A routine cleaning on a system that’s overdue but intact stays in the lower half of the range. A cleaning that turns into a duct repair because joints have been leaking for years costs more.
- Get the estimate in writing first. We give free estimates, and the written number is what you pay. That protects you from the classic bait-and-switch, where a low phone quote turns into a much bigger invoice once the crew is in the driveway.
- Clean both systems at once if you have two. Booking both HVAC systems in one visit is more efficient than two separate appointments, and it means the whole house gets done in one pass.
- Mention your air-quality equipment. If you have a Honeywell or Aprilaire whole-home system, tell us when you book. We’re familiar with both, and it means no guesswork around premium HVAC components during the job.
If you’re ready for a real number, call (888) 495-2236. We answer 24/7, and we dispatch crews from 7am to 7pm, Sunday through Friday. The estimate is free and there’s no obligation.
FAQs – HVAC Cleaning Cost
How much does air duct cleaning cost in Thornton?
Air duct cleaning in Thornton typically runs $350 to $700 for a standard single-family home, with condos and small homes starting around $250 and larger two-system houses reaching $700 to $1,100. The written estimate sets your final price, so call (888) 495-2236 for an exact quote. Estimates are free.
Is it cheaper to repair my ducts or replace them?
Repair is almost always cheaper than replacement. Reconnecting a separated flex run typically costs $150 to $300, and replacing a damaged section runs $300 to $600, while full duct replacement is a much larger project. Most of what we find during a cleaning is repairable on the spot. Call (888) 495-2236 and we’ll tell you which you’re looking at.
Can you clean my ducts and dryer vent in the same visit?
Yes. Dryer vent cleaning added to an air duct cleaning typically costs $125 to $225, and booking both together is more efficient than two separate appointments. Call (888) 495-2236 to schedule both, with fast dispatch from 7am to 7pm, Sunday through Friday.
How much does HVAC cleaning cost if I have two systems?
Two-system homes in Thornton typically run $700 to $1,100, because both air paths get cleaned: two sets of trunk lines, branch runs, and registers. That’s roughly double a single-system job, and it’s the honest number for the work involved. Call (888) 495-2236 for a free estimate.
Do you charge extra to come out same day?
No. Same-day service doesn’t carry a premium, and the price is set per job by the written estimate. We answer 24/7; a call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. Call (888) 495-2236 for an exact quote.
Why the Equipment Matters for the Price
A $199 duct cleaning and a $550 duct cleaning are not the same service, even though both say “duct cleaning” on the invoice. The difference is what shows up in the driveway. Our crews run professional Rotobrush rotary-brush systems and Nikro HEPA-rated vacuums, the same class of equipment commercial and restoration contractors use, because that’s what actually removes debris from the full length of a duct run and captures it instead of recirculating it through your house.
We also bring Abatement Technologies negative-air and HEPA-filtration equipment to standard residential cleanings. That’s containment discipline usually reserved for remediation jobs. It matters most on heavy-contamination houses, where you want the displaced dust pulled out of the room, not pushed into the air you’re breathing. If your home has a Honeywell or Aprilaire air-quality system, we know how those integrate with your ductwork and clean around them without conflict.
And when we find damaged ductwork, we repair it. That closes the loop most low-bid operators leave open. A cleaning that leaves a crushed run or a disconnected joint in place isn’t a complete job, and you shouldn’t pay twice to fix it later. Keeping cleaning, repair, and dryer vent service in a single visit is why our pricing holds up better than a mystery flat rate.
The 2026 Thornton guide to duct cleaning in Thornton starts with a real number, and so do we. A 1,500 to 2,500 sq ft home in the Thornton area typically lands between $350 and $700 for air duct cleaning, and your written estimate is the price you pay.
How to Choose a Duct Cleaner in Thornton
Since you’re comparing quotes, here’s what to ask before you book anyone. It’ll tell you more than the price on the phone.
- Ask what equipment they use. If the answer is vague, that’s your answer. Professional systems have names: Rotobrush, Nikro, HEPA-rated vacuums. Consumer-grade shop-vacs don’t belong on a duct cleaning.
- Ask whether they use negative-air containment. On a dusty job, containment is the difference between a clean house and a cloud of drywall dust settling on your furniture.
- Ask what they do if they find damaged ductwork. If the only answer is “you’ll need another contractor,” you’re paying for a partial job.
- Ask for the estimate in writing. Ours is free, and the written number is the price.
- Ask about dryer vent cleaning. It’s one of the leading causes of house fires, and a crew that takes it seriously tells you a lot about how they treat the rest of the job.
Our technicians have up to 12 years of experience, and we’re ready to give you a straight answer and a written number. Call (888) 495-2236 for a free estimate. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Pricing reflects the Thornton market as of 2026. Duct Cleaning Thornton offers free estimates – call (888) 495-2236.
Written by the team at Duct Cleaning Thornton.
What Our Customers Say
"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Tracy Rhodes"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."
- Ryan Reed"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Carlos Torres