How much does it cost to hire an HVAC technician for maintenance?

• <div><p>The cost of annual maintenance depends on the type of HVAC system you have. AC service <a href="https://www.angi.com/articles/ac-service-cost.htm">typically costs an average of <b>$200</b></a> but ranges from<b> $100 to $550</b>. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer. </p></div>

Get matched with top air duct cleaners in Hilo, HI

Q: How do I know if my ducts need to be sealed?

• <div><p>There are a few things that you can look out for that indicate that you need duct sealing, but the two most critical ones are less comfortable air in your living space and increased utility bills. If you notice that you&rsquo;re paying more often for HVAC servicing and maintenance, that could suggest that you need duct sealing, as well, as leaks put added strain on your system. You may also notice musty odors in parts of your home, as leaks can lead to <a href="https://www.angi.com/articles/stop-condensation-on-air-vents.htm">condensation on your air ducts</a> that can promote mold growth behind your walls. </p></div>

Q: Are larger ducts always better for CFM?

• <div><p>Larger ducts aren't always better for CFM (Cubic Feet per Minute). While larger ducts can handle higher airflow, they must be balanced with the system's capacity. Oversized ducts can lead to air velocity reduction, causing poor airflow distribution and efficiency issues. Duct size should align with system requirements for optimal HVAC performance.</p></div>

Q: Why do my vents keep getting moldy?

• <div><p>Several factors contribute to the persistent growth of mold in vents, with excess moisture being the most common culprit. Consistent mold formation in vents indicates an ongoing moisture problem within the HVAC system or its surroundings, likely caused by condensation on cool surfaces in areas with high humidity. Moisture accumulation can also result from leaks in ductwork, inadequate ventilation, or insufficient insulation, creating an environment favorable for mold growth. Regular inspections, addressing potential sources of moisture, maintaining proper ventilation, and routine HVAC maintenance can help prevent the recurrence of mold in vents. If the issue persists, seek professional assistance to identify and rectify the underlying problems.</p></div>

Q: Are HVAC dampers necessary?

• <div><p>You do need dampers in your HVAC system, but they do help to regulate airflow and give you better control of the temperature in each room of your home. Most HVAC systems will have dampers installed, but this isn't always the case. If you don&rsquo;t have designated zones in your home, you&rsquo;ll likely still have valve control dampers on your supply vents for manual control.</p></div>

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Verified Reviews for Air Duct Cleaning pros in Hilo, HI

*The Angi rating for Air Duct Cleaning companies in Hilo, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Duct Cleaning needs.

*The HomeAdvisor rating for Air Duct Cleaning companies in Hilo, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Duct Cleaning needs.

Last update on October 18, 2025

Reviewed in October 2024
(Gutter Cleaning)
Abrojena Holding Company
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Reviewed in August 2022
Fast and efficient! Did a clean out of our back yard and dead tree removal. Will hire again
Elite Landscaping and Irrigation
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Reviewed in July 2019
Showed up on time and did a great job cleaning my roof. I had not cleaned my roof in over 16 years so the build up of grime was pretty bad. It took him a day and a half but now my roof looks awesome and itâ s ready for paint.
Walther Service's, LLC
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Reviewed in January 2018
Ian is punctual, professional, and a delight to have in my home. A former general contractor, he now specializes in cleaning windows for homeowner, commercial, and industrial clients. He has all equipment to reach all my windows, some of which are 35' high. He wears shoe protectors when inside....
The Window Guy
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Reviewed in July 2016
The first time I turned my air conditioner on the temperature was only a 10 degree difference between air in and air out. When I called Hawaii Air Conditioner to report this they told me I had no warranty and they had done me a favor since I did not buy the system from them. I said I should at...
Hawaii Air Conditioning
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Reviewed in June 2015
The people came when they said they would and picked up the carpets. They brought the carpets back cleaned when scheduled and then said they took a lot of soot out of the carpets and suggested cleaning the furnace to avoid this happening again. I had them do it then as the price was good....
Quality Carpet Cleaning Inc
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Reviewed in November 2013
Everything was way past due for a good cleaning!! Now, everything looks new and fresh for the holidays. Ed's service was excellent, from Renee, the lady I spoke to in the office, to Danny, who did the actual work. Both were very pleasant and conscientious. I could not be more pleased with my...
Ed's Cleaning Hawaii
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Reviewed in October 2013
I purchased the cleaning package and the owner of the company called they very next morning to say they do not work in our area, very prompt!
QC Cleaning
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Reviewed in August 2013
Work was done with care in a timely fashion. Works out of her studio apartment, so changing happens in her bedroom which was a bit odd, but it was very clean and tidy.
Alteration & Creation
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Reviewed in July 2013
I was not to impressed with the facility at Kapa'au Veterinary Center. It was clean but not as clean as I think it should be. When I walked in my allergies started acting up. While there another lady had brought her cat in and it used the restroom and the staff asked the lady if she wanted a...
Kapa'au Veterinary Center
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Find Air duct cleaners in Hilo

Having a well-functioning HVAC system is essential for any Island Of Oahu property owner. For all of your HVAC needs, trust the professionals at Consolidated Systems.

Stanley Steemer - Waikoloa

68-1856 Malina Pl

4.50(

)

Stanley Steemer - Waikoloa

68-1856 Malina Pl

4.50(

)

Customers say: Quick response

Recommended by 100% of Angi customers

See website for more service areas

Global Plasma Solutions

10 Mall Terrace

5.00(

)

Global Plasma Solutions

10 Mall Terrace

5.00(

)

Customers say: Quality work

Recommended by 100% of Angi customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

Customers say: True professional

Recommended by 93% of Angi customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

"as advertised"

Nancy C on July 2018

Air Duct Cleaning questions, answered by experts

There are a few things that you can look out for that indicate that you need duct sealing, but the two most critical ones are less comfortable air in your living space and increased utility bills. If you notice that you’re paying more often for HVAC servicing and maintenance, that could suggest that you need duct sealing, as well, as leaks put added strain on your system. You may also notice musty odors in parts of your home, as leaks can lead to condensation on your air ducts that can promote mold growth behind your walls.

Larger ducts aren't always better for CFM (Cubic Feet per Minute). While larger ducts can handle higher airflow, they must be balanced with the system's capacity. Oversized ducts can lead to air velocity reduction, causing poor airflow distribution and efficiency issues. Duct size should align with system requirements for optimal HVAC performance.

Several factors contribute to the persistent growth of mold in vents, with excess moisture being the most common culprit. Consistent mold formation in vents indicates an ongoing moisture problem within the HVAC system or its surroundings, likely caused by condensation on cool surfaces in areas with high humidity. Moisture accumulation can also result from leaks in ductwork, inadequate ventilation, or insufficient insulation, creating an environment favorable for mold growth. Regular inspections, addressing potential sources of moisture, maintaining proper ventilation, and routine HVAC maintenance can help prevent the recurrence of mold in vents. If the issue persists, seek professional assistance to identify and rectify the underlying problems.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

You do need dampers in your HVAC system, but they do help to regulate airflow and give you better control of the temperature in each room of your home. Most HVAC systems will have dampers installed, but this isn't always the case. If you don’t have designated zones in your home, you’ll likely still have valve control dampers on your supply vents for manual control.

The Hilo, HI homeowners’ guide to air duct cleaning services

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

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•
Mar 10, 2025Mar 10, 2025
Who Cleans Air Ducts? Who to Hire
Are your air vents looking dusty? Discover who cleans air ducts and whether this project is one that you can do yourself or if you need to hire a pro.
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•
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The best bathroom exhaust fan venting option exits through your roof. However, other choices exist if a roof vent installation is not possible.
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Does Air Duct Cleaning Help Get Rid of Bad Smells?
If you suspect foul odors are coming from your air ducts, know that air duct cleaning does not always help with smell. Consult this guide to determine the best solution.