What causes condensation on air vents?

• <div><p>Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a <a href="https://www.angi.com/nearme/air-duct-cleaning/">local air duct cleaner</a> to clean and inspect them.</p></div>

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Q: Is mold around air vents common?

• <div><p>It is common for mold to grow around air vents, especially in areas with high humidity or moisture problems. These vents provide a perfect environment for mold to thrive due to the condensation caused by the meeting of warm and cool air. Mold growth can be accelerated by the presence of dust and debris around the vents. Regular maintenance, proper ventilation, and addressing any water leaks or excess humidity can prevent the growth of mold around air vents.</p></div>

Q: What is the most common cause of poor airflow in a duct system?

• <div><p>For most homes, the common causes of poor airflow in a duct system are blockages, typically from dust, debris, or buildup. Other factors include leaky or disconnected ducts, improper duct sizing, and clogged air filters. These issues restrict airflow, reducing HVAC efficiency.</p></div>

Q: Do scorpions come through AC vents?

• <div><p>Yes, unfortunately, <a href="https://www.angi.com/articles/can-scorpions-come-through-air-vents.htm">scorpions do come up through air vents</a> on occasion if they&rsquo;re not properly sealed. These pests are excellent at finding small openings and may use vents as a pathway to cooler areas inside, especially during hot weather. To prevent this, inspect your vents, seal any gaps, and install fine mesh screens where necessary.</p></div>

Q: How many air vents should a home have?

• <div><p>There should be at least one vent in every room in your home to ensure proper airflow, but it really depends on the size of your space. Open-concept floor plans should be considered in terms of zones, with an air vent in each one. Additionally, larger rooms may have more than one vent for proper heating and cooling.</p></div>

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Verified Reviews for Air Duct Cleaning pros in Orange, VT

*The Angi rating for Air Duct Cleaning companies in Orange, VT 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 Orange, VT 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 December 05, 2025

Reviewed in June 2025
Our neighbor is using them to make a patio, soon our home filled with white dust and it coveted our lawn. The workers informed us they were not using any water or dust suppression methods as required by OSHA. We told them we were concerned about our exposure to silica, a cause of potentially...
ATD Landscaping LLC
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Reviewed in July 2024
Everything was great! The work was done in a timely manner (it was a rainy summer!) and the job was excellent. Jeremy and his crew are also extremely neat, and the area was clean at the end of each day. Highly recommended!
Moose Os Painting
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Reviewed in March 2024
Great group of professionals, I would highly recommend them to anyone in need of tree work and clean up.
Sky High Tree Service
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Reviewed in February 2024
Excellent...quick,clean,safe and professional .definitely would hire again and highly recommend.
Stevens Roofing and Siding
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Reviewed in December 2022
Quality couple. Responsible. Reliable. Pleasant. And outstanding professional cleaning. Highly recommend Annas Cleaning!
Northshire Cleaning
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Reviewed in September 2018
Stay away from MIKE Crawford He quoted me a job for a complete heating system. 2 hot air furnaces. Said he was slow and could do quick. He took my money then all of a sudden he was busy. Couldn't start my job. He came by a coupe months later cut some holes in my ceiling then disappear ed again....
premier pluming and heating
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Reviewed in April 2016
Shawn was very professional, very punctual, answered any and all questions that we had. explained step by step the process of the job. Cleaned up the job site very well. THANKS Shawn.
green mountain roof repair
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Reviewed in July 2014
He changed the oil tank filter, adjusted the electrodes, replaced the nozzle and cleaned the inside of the boiler, tested the unit for final efficiency and left the record of the test. Randy offered advice on efficient care and use of the boiler as well. He is prompt and dependable.
Randy'S Heating Services
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Reviewed in November 2013
Cleaning was very thorough and Cody was very knowledgeable about this system. Our boiler was running poorly about a month later, (not because of the cleaning, it was a problem we had had in the past), Chuck came over on a friday evening and was able to figure out the problem quickly and had us...
Cacicio's Heating Inc
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Reviewed in December 2008
Terrific experience. Yuri and his colleague are highly professional. They called to let us know they were running slightly late, did a walk-through of the house, inserted a camera to show us the amount of muck in the ducts, and got to work. Yuri's colleague removed the registers and washed them...
PYM Llc
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Find Air duct cleaners in Orange

Environmental Testing & Research Laboratories, Inc

4.85(

347

)

Environmental Testing & Research Laboratories, Inc

4.85(

347

)

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

CLEANWAY SERVICES

3.00(

)

CLEANWAY SERVICES

3.00(

)

Customers say: Quick response

1984 years of experience

Cleanway Services provides comprehensive restoration services for residential and commercial structures damaged as a result of fire, smoke, and/or water. Our highly skilled and IICRC certified technicians are able to respond to your damage needs in Vermont and New Hampshire within hours. No matter how big or small the damage is, we are committed to restoring your home or business. In addition we offer green carpet cleaning and janitorial services to keep your home clean and free of allergens and odors. If you drop off your rug at our St Johnsbury location we can clean that too!

"BEN &his STAFF BEST CLEANING SERVICES, CLEANWAY SERVICES, PROFESSIONAL, EXCELLENT CUSTOMER SERVICE &PERFORMANCE SERVICES.HIGHLY RECOMMENDED A++++I ONLY RECOMMEND CLEANWAY SERVICES. We moved to this 4yr old home NH 2015 and all been sick even RESCUE ANIMALS. Jan2018, I was incapacitated, dizzy, in&out çonsciousness thinking flu???my rescue CATS howling PAWING acting like never b4.I already am disabled hospital bedridden and my bedroom above oil FURNACE room.We didn't know but FURNACE FIRE oil soot CARBON MONOXIDE (none of detectors went off BC dummies,electric not REAL wires).CLEANWAY SERVICES,ABSOLUTE RESOURCES (MOLD),yes mold SEVERAL all over&affected our health detrimental 2us&animals, LIBERTY MUTUAL EXCELLENT. I KNOW MOLD NOT COVERED BY INSURANCE yet everything with OIL SOOT had MOLD. Despite central exchanger, central ionizer,12 HEPA Uv air filtration units for home 2000sqft, several MOLDS DESTROYING 38yrs of memories and collectibles can't replace.BEN&STAFF AT CLEANWAY SERVICES ALWAYS ACCOMODATING PROFESSIONAL SUPERB SERVICES.DONT HIRE ANYONE BUT CLEANWAY SERVICES esp.Ben &staff VT"

Toula G on April 2018

"BEN &his STAFF BEST CLEANING SERVICES, CLEANWAY SERVICES, PROFESSIONAL, EXCELLENT CUSTOMER SERVICE &PERFORMANCE SERVICES.HIGHLY RECOMMENDED A++++I ONLY RECOMMEND CLEANWAY SERVICES. We moved to this 4yr old home NH 2015 and all been sick even RESCUE ANIMALS. Jan2018, I was incapacitated, dizzy, in&out çonsciousness thinking flu???my rescue CATS howling PAWING acting like never b4.I already am disabled hospital bedridden and my bedroom above oil FURNACE room.We didn't know but FURNACE FIRE oil soot CARBON MONOXIDE (none of detectors went off BC dummies,electric not REAL wires).CLEANWAY SERVICES,ABSOLUTE RESOURCES (MOLD),yes mold SEVERAL all over&affected our health detrimental 2us&animals, LIBERTY MUTUAL EXCELLENT. I KNOW MOLD NOT COVERED BY INSURANCE yet everything with OIL SOOT had MOLD. Despite central exchanger, central ionizer,12 HEPA Uv air filtration units for home 2000sqft, several MOLDS DESTROYING 38yrs of memories and collectibles can't replace.BEN&STAFF AT CLEANWAY SERVICES ALWAYS ACCOMODATING PROFESSIONAL SUPERB SERVICES.DONT HIRE ANYONE BUT CLEANWAY SERVICES esp.Ben &staff VT"

Toula G on April 2018

Global Plasma Solutions

5.00(

)

Global Plasma Solutions

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.

Second Nature (Formerly FilterEasy)

5.00(

)

Second Nature (Formerly FilterEasy)

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Green Home Solutions of Vermont, LLC

No reviews yet

Green Home Solutions of Vermont, LLC

No reviews yet

2014 years of experience

Green Home Solutions of Vermont, LLC is an owner operated business that provides effective, affordable, responsible, natural, and safe solutions for mold, odor, allergen, bed bug, mosquito, and tick elimination. We offer free healthy home audits and free estimates and our work is 100% guaranteed.

Air Duct Cleaning questions, answered by experts

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

It is common for mold to grow around air vents, especially in areas with high humidity or moisture problems. These vents provide a perfect environment for mold to thrive due to the condensation caused by the meeting of warm and cool air. Mold growth can be accelerated by the presence of dust and debris around the vents. Regular maintenance, proper ventilation, and addressing any water leaks or excess humidity can prevent the growth of mold around air vents.

For most homes, the common causes of poor airflow in a duct system are blockages, typically from dust, debris, or buildup. Other factors include leaky or disconnected ducts, improper duct sizing, and clogged air filters. These issues restrict airflow, reducing HVAC efficiency.

Yes, unfortunately, scorpions do come up through air vents on occasion if they’re not properly sealed. These pests are excellent at finding small openings and may use vents as a pathway to cooler areas inside, especially during hot weather. To prevent this, inspect your vents, seal any gaps, and install fine mesh screens where necessary.

There should be at least one vent in every room in your home to ensure proper airflow, but it really depends on the size of your space. Open-concept floor plans should be considered in terms of zones, with an air vent in each one. Additionally, larger rooms may have more than one vent for proper heating and cooling.

The Orange, VT homeowners’ guide to air duct cleaning services

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