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5 Best Air Duct Cleaning Services in Denver (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 7 min read

We compared 13 air duct cleaning services in Denver on Google Maps · 5 listed · How we rank

A house that has gone twenty years without a duct cleaning usually shows it the first time the furnace kicks on. The air duct cleaning services in Denver below hold more than 2,200 Google reviews between them, every one rated 4.7 or higher, and Ductworks accounts for more than 1,300 of those, so the real choice is between a large established crew and a smaller outfit that may squeeze you in sooner.

Short answer: Ductworks, Inc. has the most Google reviews of any Denver air duct cleaner here, 4.8 stars from more than 1,300 reviews. Action Air Duct Cleaning Denver holds a 4.9 from more than 260 reviews, and Mile High Ducts a 4.8 from more than 200. Several also clean dryer vents, so ask about both when you call.
Jump to a business

Denver Duct Cleaners, Side by Side

# Business Rating Reviews Best for
1 Ductworks, Inc. 4.8 ★ 1,328 Homes and commercial buildings View ›
2 Action Air Duct Cleaning Denver 4.9 ★ 266 Ducts and dryer vents View ›
3 LEV Air Duct Cleaning INC 4.7 ★ 280 Dryer vents and chimney work View ›
4 Mile High Ducts 4.8 ★ 201 No-pressure estimates View ›
5 HighPoint HVAC 5.0 ★ 151 Duct and dryer vent visits View ›
5 Best Air Duct Cleaning Services in Denver (2026)

The duct cleaners, reviewed

DU
#1 Overall🕑 Open 5 days/wk↩ Responds to reviews

Ductworks, Inc.

4.81,328 Google reviews

Ductworks, Inc. is an air duct cleaning company based in Arvada that serves homes and commercial buildings. Its site says it is NADCA-certified, lists residential and commercial duct cleaning, and also offers fiberglass duct liner restoration and encapsulation for damaged systems. It names Denver, Colorado Springs and Fort Collins as places it works.

What people praise

  • Reviewers say quotes were complete with no surprises added on
  • Technicians are named and praised for being prompt, courteous and informative
  • Customers mention before and after photos of their ducts
  • One reviewer had two heating systems with 39 ducts cleaned and said it removed about 20 years of buildup
Reputation scorecardrank in Denver
Rating4.8 / 5
Review volume1,328 · 96th
Confidencevery high
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown93% 5-star
✓ VerifiedSource: Google

Our take: The largest review base on this page, at 4.8, and its site also lists liner restoration and encapsulation. A sensible first call for a large or older system.

Website+1303-425-0985 Directions

5535 W 56th Ave Unit 100, Arvada, CO 80002

Action Air Duct Cleaning Denver logo
#2🕑 Open 7 days↩ Responds to reviews

Action Air Duct Cleaning Denver

4.9266 Google reviews

Action Air Duct Cleaning Denver is listed at a Fillmore Street suite in Denver and open seven days a week. Its site lists air duct cleaning, dryer vent cleaning and commercial duct cleaning. Reviewers describe duct and dryer cleaning, a microwave vent installation and a two-person crew working after hours.

What people praise

  • One reviewer asked whether their ducts needed cleaning and was told after an exam that they did not
  • Customers mention thorough quotes, explained steps and before and after photos
  • A reviewer who had ducts and a dryer cleaned called the price very competitive
  • Quoting and scheduling is described as easy

Worth knowing

  • Two reviewers raised a dryer vent job that left a clog warning and the price of a short exhaust-duct job; the company responded to both
Reputation scorecardrank in Denver
Rating4.9 / 5
Review volume266 · 81st
Confidencehigh
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A 4.9 across more than 260 reviews and the widest opening hours here, which helps when you need an evening or weekend slot. For a dryer vent job, confirm the vent is clear before the crew leaves.

Website+1720-257-3319 Directions

100 Fillmore St Ste 563, Denver, CO 80206

LEV Air Duct Cleaning INC logo
#3🕑 Open 7 days↩ Responds to reviews

LEV Air Duct Cleaning INC

4.7280 Google reviews

LEV Air Duct Cleaning INC is a Denver company whose site lists air duct cleaning, dryer vent cleaning and chimney sweep and repair services. Google also lists it as an insulation contractor. Reviewers describe a husband-and-wife team coming to the house for dryer vent and duct cleaning.

What people praise

  • Reviewers say the couple explained everything before starting
  • A dryer vent customer found it in much worse condition than they knew and said the house was left immaculate
  • A reviewer who had ducts and a dryer vent cleaned described an amazing difference
  • Customers call the crew professional, kind and straightforward about pricing

Worth knowing

  • Its 4.7 is the lowest rating here and it carries a larger share of one-star ratings than the others
Reputation scorecardrank in Denver
Rating4.7 / 5
Review volume280 · 88th
Confidencehigh
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown91% 5-star
✓ VerifiedSource: Google

Our take: Strongest in the reviews for dryer vent cleaning, with duct work and chimney services listed on its site. More than 270 reviews back a 4.7, so read recent feedback before booking.

Website+1720-927-8730 Directions

909 Bannock St #1634, Denver, CO 80204

Mile High Ducts logo
#4🕑 Open 7 days↩ Responds to reviews

Mile High Ducts

4.8201 Google reviews

Mile High Ducts is a Denver air duct and dryer vent cleaning company on Park Avenue West. Its site lists residential and commercial duct cleaning, an EPA-registered air duct sanitizer treatment and dryer vent cleaning. Reviewers describe homes and a business getting duct and dryer vent cleaning.

What people praise

  • One reviewer said the technician warned them that some vents might need touch-up paint and respected their decision not to proceed
  • Another had a dryer vent cleaned, asked for a duct estimate, and was given options without being upsold
  • Customers mention before and after pictures and text follow-ups
  • One business customer plans to have the company back twice a year

Worth knowing

  • One reviewer was turned away at their appointment because painting was underway in the house; the company says it recommended postponing to protect wet paint
Reputation scorecardrank in Denver
Rating4.8 / 5
Review volume201 · 73rd
Confidencemoderate
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown94% 5-star
✓ VerifiedSource: Google

Our take: A 4.8 across more than 200 reviews, with feedback that centers on honest estimates and no pushy upsells. Good for homes and small commercial spaces.

Website Book now+1720-422-9953 Directions

1415 Park Ave W, Denver, CO 80205

HighPoint HVAC logo
#5🕑 Open 6 days/wk↩ Responds to reviews

HighPoint HVAC

5.0151 Google reviews

HighPoint HVAC is a Denver-area duct and dryer vent cleaning business, listed on Google as an air duct cleaning service. Reviewers describe a technician who explained the work before and after, showed them the condition of their ducts and cleaned air ducts and a dryer vent in the same visit.

What people praise

  • Reviewers say the technician went through everything he planned to do and showed them the state of the ducts
  • Customers describe respect for their time and home and a fresher feel in the air afterward
  • One reviewer found scheduling flexible and the crew quick
  • A tradesperson who worked with the technician on a dryer vent repair called him thorough
Reputation scorecardrank in Denver
Rating5 / 5
Review volume151 · 65th
Confidencemoderate
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown100% 5-star
✓ VerifiedSource: Google

Our take: A 5.0 from more than 150 reviews, with praise centered on one technician's explanations. Confirm exactly which services your quote includes.

Website+1720-277-6586 Directions

1500 N Grant St Ste 6496, Denver, CO 80203

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How the scores work

Each number comes from public Google data on the date shown. Rating is the live Google star average. Review volume is how many customers have rated the business, set against other Denver duct cleaners. Confidence weighs the rating by that volume, so a 4.8 from over a thousand people counts for more than a 5.0 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

What drives air duct cleaning prices in Denver

Duct cleaning is usually quoted by the system, not by the hour. The number of heating and cooling units, how many vents and returns you have, the age and condition of the ducts, and the type of duct (flex line takes a different approach than sheet metal) all move the quote. Dryer vent cleaning, sanitizing treatments and repairs are often priced separately, so ask what is included before you agree.

Where these duct cleaners work around Denver

Ductworks is based in Arvada and its site names Denver, Colorado Springs and Fort Collins, while reviewers mention jobs in Littleton and Broomfield. Mile High Ducts describes itself as serving metro Denver. Searching for air duct cleaning near me? Each card has a phone number and a map pin to find the closest crew.

Questions to ask a Denver duct cleaner

  • What does the quote include: every vent and return, the furnace and the dryer vent?
  • Do you use negative air, and will you take before and after photos?
  • Is there a charge if vents need to be removed, and what happens to the paint around them?
  • Is flex duct or fiberglass-lined duct cleaned differently, and does that change the price?
  • How long will the job take, and how many people are coming?

Frequently asked questions

Which Denver duct cleaners also clean dryer vents?

Action Air Duct lists dryer vent cleaning on its site and a reviewer had both ducts and a dryer cleaned. LEV Air Duct Cleaning and Mile High Ducts both list it, and a HighPoint HVAC customer had air ducts and a dryer vent cleaned in one visit.

Do any of these Denver companies clean commercial buildings?

Ductworks’ site lists commercial duct cleaning for offices, healthcare, education and manufacturing, and Action Air Duct and Mile High Ducts both list commercial duct cleaning.

Will a Denver duct cleaner show proof of the work?

Reviewers for Ductworks, Action Air Duct, Mile High Ducts and HighPoint HVAC all mention being shown before and after photos or the condition of their ducts. Ask for them when you book.

Is Ductworks a Denver company?

Ductworks, Inc. operates from Arvada, northwest of Denver, and its site lists Denver among the metro areas it serves. Action Air Duct, LEV and Mile High Ducts all list Denver addresses.

Picking a duct cleaner

Ductworks is the safe default for most homes, with the deepest review history on this page. Action Air Duct and Mile High Ducts are strong choices if you also want a dryer vent done or value a no-pressure estimate. Whoever you pick, get the scope and the number of vents in writing.

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