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TRUSTED BY WALNUT, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon98
    Verified air duct cleaning services reviews

Top-Rated Air duct cleaners in Walnut - Updated Nov 2026

Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,518
)
Air Ducts & Vents - CleanAir Ducts & Vents - Clean - For Business

Serving Walnut, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I've had Air Duct Professionals clean my air ducts in the past. As before, they do excellent work. They are easy to communicate with and are professionals in every way. I will continue to hire them to clean my air ducts in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for MDC Air Duct Cleaning
MDC Air Duct Cleaning
5.0(
16
)
Air Ducts & Vents - CleanAir Ducts & Vents - Clean - For Business

Serving Walnut, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Amazing service from start to finish! The technician was very friendly and professional. He inspected the air ducts and showed me the dust buildup inside the vents. After the cleaning, the airflow in the house improved and the air feels much fresher. If you need air duct cleaning or HVAC service, I definitely recommend this company!"
Hvac & air duct cleaning
Hvac & air duct cleaning
Hvac & air duct cleaning
Hvac & air duct cleaning
3 neighbors recently requested a quote
Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
4.9(
328
)
Air Ducts & Vents - Clean

Serving Walnut, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Danny showed up as promised and quickly found the issue with my AC system. He cleaned up and was careful to protect my home as he worked. I received my service on a Saturday evening and did not miss any work waiting at home. I would recommend MSP heating and air and would use them again."
duct job all R-8 ducting
4 Ton GOODMAN Furnace
customer Vlastos
duct job all R-8 ducting
furnace install

+67

Response time4 hrs
28 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Easy Air LLC
Easy Air LLC
4.9(
26
)
Air Ducts & Vents - CleanAir Ducts & Vents - Clean - For Business

Serving Walnut, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Brian arrived on time and patiently explained to us the complete process and what and why he would be doing certain steps. He did an excellent job working to clean the dryer duct, which was blocked. He was very courteous and he reassured us that the process would work and it did. We would definitely recommend him to our friends and neighbors and to anyone who needs duct cleaning."
Cleaned and serviced ac unit.
Cleaned Air return
Cleaned air return
Inspected Furnace
Cleaned out condensation pan.

+4

Response time6 hrs
Recommended by65%of homeowners
Avatar for Temp Air System, Inc.
Temp Air System, Inc.
4.8(
59
)
Air Ducts & Vents - Clean

Serving Walnut, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation

+14

Response time10 hrs
Response rate99%
10 neighbors recently requested a quote
Avatar for SoCal Climate Control - LA
SoCal Climate Control - LA
4.2(
414
)
Air Ducts & Vents - Clean

Serving Walnut, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Very thorough in fixing the problems by replacing heater and new ducts & vents as needed. Heat is more even throughout the house now! Very happy with forced air system."
SoCal Staff
506 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Pro Carpet Care
Pro Carpet Care
4.3(
1,137
)
Air Ducts & Vents - CleanAir Ducts & Vents - Clean - For Business

Serving Walnut, CA and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"The guys were amazing - came immediately and fixed my issues with my dryer by repairing ducting and doing a great cleaning job cleaning out my vents. They even went to Home Depot to pick up the parts I needed to repair my dryer. I highly recommend!!!"
Before & After Carpet Cleaning
Tile & Grout, Stone Flooring
Response time10 mins
Recommended by92%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Air Ducts & Vents - CleanAir Ducts & Vents - Clean - For Business

Serving Walnut, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again."
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+1

Response time6 hrs
Recommended by17%of homeowners
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Air Duct Cleaning FAQs, answered by experts

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

Yes, dirty air ducts can make your house smell. If you have mold growing in your ducts, you might notice a musty odor (similar to rotting leaves) coming through your vents when you run your AC. Rodent infestations might smell like ammonia, while an insect problem could create a musty or oily scent.

Yes, scorpions can enter a home through AC vents, especially if the system is not well-sealed. As excellent climbers, they can scale a home's exterior and squeeze through gaps as small as 1/16 of an inch. Scorpions are often attracted to the moisture around air conditioning ducts or seek cooler areas during hot weather, using vents as a pathway inside. They may slip through small openings where the duct meets the vent cover and travel within walls before emerging. To prevent this, inspect your vents, seal any gaps, and consider installing fine mesh screens.

If you have a fresh air intake as part of your HVAC system, the interior vents should be near your furnace or other gas appliances inside your home. From the outside of your property, your HVAC fresh air intake location is usually near the ground (although it may also be higher up, like on the roof or attic).

Your floor sees a lot of action: foot traffic bringing in dirt from outside, pets with muddy paws, kids dropping food crumbs, and more. All of this makes your floors dirty, and if you don’t keep up with cleaning them, staying on top of the dirt will become more challenging.

The Walnut, CA homeowners’ guide to air duct cleaning services

From average costs to expert advice, get all the answers you need to get your job done.