Question 1

Do Ottawa ducts in a cold crawl space need insulating?

Accepted Answer

Yes, ducts in an unconditioned (cold) crawl space in Ottawa absolutely should be insulated. This is one of the most impactful energy upgrades you can make in a Canadian climate home.

Ottawa winters are brutal, with temperatures regularly hitting -20°C or colder. When uninsulated sheet metal ducts run through a crawl space that's sitting at near-outdoor temperatures, you're losing a significant portion of your heated air before it ever reaches your living space. Studies suggest duct heat loss in

Question 2

Is a UV lamp in Ottawa ductwork worth it?

Accepted Answer

UV lamps for HVAC systems are a worthwhile upgrade for many Ottawa homeowners, but whether they're "worth it" depends on your specific situation and what you're hoping to achieve.

What UV lamps actually do is use ultraviolet light to neutralize biological contaminants — mold, bacteria, and viruses — that can grow on your air handler's coil and circulate through your ductwork. Ottawa's climate creates ideal conditions for this problem: cold winters mean your system runs hard, and humid summers c

Question 3

Why do some duct cleaning companies charge so little?

Accepted Answer

Great question, and it's one that catches a lot of Ottawa homeowners off guard.

The short answer: low prices almost always mean cut corners, and sometimes they're outright scams.

The duct cleaning industry has a well-documented problem with "bait and switch" pricing. A company advertises a whole-home duct cleaning for $99 or $149, technicians show up, and suddenly you're being told your ducts are "severely contaminated" and the real job will cost $800-$1,200. This practice is so common that th

Question 4

How do I clean the duct behind my dryer?

Accepted Answer

Cleaning your dryer vent duct is a great home maintenance task — it's one of the most important things you can do to prevent dryer fires and keep your dryer running efficiently. This is something most homeowners can do themselves, and it's different from your home's HVAC duct system.

What You'll Need

You'll want a dryer vent cleaning kit (available at Home Depot or Canadian Tire for $20–$40), which includes flexible rods that connect together and a brush head. You'll also need a vacuum with a

Question 5

Can duct cleaning help with pet allergies?

Accepted Answer

Yes, professional duct cleaning can help reduce pet allergies by removing accumulated pet dander, hair, and other allergens from your HVAC system. When your furnace or air conditioner runs, it can circulate these allergens throughout your home, making symptoms worse for sensitive family members.

Pet dander is particularly problematic because it's microscopic and sticky, clinging to duct surfaces and getting redistributed every time your system cycles. Over time, significant amounts of pet hair,

Question 6

Should I get ducts cleaned before moving into a new home?

Accepted Answer

Yes, getting your ducts cleaned before moving into a new home is generally a smart investment, especially if you don't know the maintenance history or if the previous owners had pets, were smokers, or did recent renovations.

Duct cleaning before move-in offers several key benefits. You'll remove accumulated dust, debris, and potential allergens that have built up over years of use. This is particularly important if anyone in your family has allergies or respiratory sensitivities. A professional

Question 7

Is dryer vent cleaning the same as duct cleaning?

Accepted Answer

No, dryer vent cleaning and HVAC duct cleaning are completely different services that address separate systems in your home, though both involve cleaning air pathways.

Dryer vent cleaning focuses specifically on the exhaust system that removes hot, moist air from your clothes dryer to the outside of your home. This involves cleaning the vent line from your dryer to the exterior wall, removing lint buildup that can create fire hazards and reduce drying efficiency. The process typically takes 30-

Question 8

Does duct cleaning reduce dust in my house?

Accepted Answer

Yes, professional duct cleaning can significantly reduce dust in your home, especially if your ducts haven't been cleaned in several years or contain visible debris buildup. However, the effectiveness depends on the current condition of your ductwork and the quality of the cleaning service.

How duct cleaning reduces dust: When your HVAC system circulates air, it pulls dust, pet dander, pollen, and other particles through the return ducts. Over time, these contaminants accumulate on duct surface

Question 9

Should I sanitize my ducts after cleaning?

Accepted Answer

Duct sanitization after cleaning can be beneficial in certain situations, but it's not always necessary for every home. The decision depends on your specific circumstances and what was found during the cleaning process.

Professional duct cleaning removes the bulk of contaminants - dust, debris, pet dander, and other particles that accumulate over years. This mechanical cleaning process is usually sufficient for most homes with typical dust and debris buildup. However, sanitization becomes more

Question 10

Should I replace or clean my flex duct?

Accepted Answer

Whether to replace or clean flex duct depends on its age, condition, and contamination level. In most cases, flex duct should be replaced rather than cleaned, especially if it's over 15 years old or showing signs of damage.

Flex duct cleaning has significant limitations compared to rigid metal ductwork. The ribbed interior surface of flex duct traps debris more effectively, making thorough cleaning difficult. Professional duct cleaning equipment can damage the inner liner of flex duct, and the

Question 11

How do I know if a duct cleaning company is legit?

Accepted Answer

Look for proper licensing, insurance, and transparent pricing - legitimate duct cleaning companies will readily provide proof of WSIB coverage, liability insurance, and detailed written estimates before starting any work.

A legitimate duct cleaning company should have several key credentials. In Ontario, they should carry WSIB coverage and at least $2 million in liability insurance. While duct cleaning itself doesn't require a specific license, reputable companies often have HVAC technicians on

Question 12

Can duct cleaning damage my HVAC system?

Accepted Answer

Professional duct cleaning should not damage your HVAC system when performed correctly by qualified technicians. However, improper techniques or aggressive cleaning methods can potentially cause problems with your ductwork and equipment.

Potential risks from improper duct cleaning include damage to flexible ducts if excessive force is used, loosening of duct connections, and stirring up contaminants without proper containment. Some unqualified cleaners may use overly aggressive brushing or high

Question 13

Is mold in my ductwork dangerous?

Accepted Answer

Yes, mold in ductwork can be dangerous to your health and should be addressed promptly. Mold spores circulating through your HVAC system can cause respiratory issues, allergic reactions, and worsen asthma symptoms, especially for children, elderly individuals, and those with compromised immune systems.

Health risks from mold in ductwork include coughing, sneezing, throat irritation, headaches, and fatigue. When your furnace or air conditioning runs, it can distribute these spores throughout you

Question 14

How do I avoid duct cleaning scams

Accepted Answer

Legitimate duct cleaning companies will provide upfront pricing, proper credentials, and won't use high-pressure sales tactics. Unfortunately, duct cleaning scams are common in Ottawa, but knowing what to look for can protect you from fraudulent companies.

Red flags to watch for include door-to-door salespeople offering "special deals," extremely low advertised prices (like $99 for whole-home cleaning), companies that demand immediate payment, or those who claim your ducts are dangerously dirty

Question 15

How much does duct cleaning cost in Ottawa

Accepted Answer

Duct cleaning in Ottawa typically costs between $400 and $800 for a whole-home service, with most homeowners paying around $500-$600 for a standard residential property.

The cost varies based on several factors including the size of your home, the complexity of your ductwork system, and the level of contamination present. Smaller homes or condos (under 1,500 sq ft) often fall on the lower end around $400-$500, while larger homes (over 2,500 sq ft) or properties with multiple HVAC systems can re

Question 16

What are the signs I need duct cleaning

Accepted Answer

You should consider duct cleaning if you notice visible dust buildup around vents, musty odors when your system runs, or family members experiencing increased allergy symptoms. Most Ottawa homes benefit from professional duct cleaning every 3-5 years, though some situations warrant more frequent service.

Visible signs are often the most obvious indicators. Check your supply and return vents for dust accumulation, especially dark streaking around the edges. If you remove a vent cover and see sub

Question 17

How often should I clean my air ducts

Accepted Answer

Most homes should have their air ducts professionally cleaned every 3-5 years, though this can vary based on your specific circumstances and indoor air quality concerns.

Several factors influence how often you need duct cleaning. Homes with pets, smokers, or family members with allergies may benefit from more frequent cleaning every 2-3 years. If you've recently completed renovations, had water damage, or notice visible mold growth around vents, immediate duct cleaning is recommended. Similarly

Question 18

Should I clean ducts after renovations

Accepted Answer

Yes, you should absolutely clean your ducts after renovations. Construction work creates significant amounts of dust, drywall particles, and debris that inevitably gets pulled into your HVAC system and distributed throughout your ductwork.

During renovations, even with plastic sheeting and dust barriers, fine particles from drywall sanding, wood cutting, and general construction activities get circulated through your home's air system. Your furnace filter will capture some debris, but much of t

Question 19

Is duct cleaning worth it

Accepted Answer

Yes, professional duct cleaning is worth it for most Ottawa homes, especially if it's been more than 3-5 years since your last cleaning or if you're experiencing specific air quality issues. However, it's not something you need to do annually despite what some companies might claim.

Duct cleaning provides real benefits when done properly by certified technicians. Over time, your ductwork accumulates dust, pet dander, pollen, and other debris that can reduce air quality and system efficiency. In

Question 20

Can dirty ducts make you sick

Accepted Answer

Yes, dirty ducts can potentially contribute to health issues, particularly for people with allergies, asthma, or compromised immune systems. While the connection isn't always direct, contaminated ductwork can circulate allergens and irritants throughout your home every time your HVAC system runs.

Dirty ducts commonly harbor dust mites, pet dander, pollen, and sometimes mold spores - all of which can trigger respiratory symptoms like sneezing, coughing, and congestion. If moisture has entered yo

Question 21

Does duct cleaning improve air quality

Accepted Answer

Yes, professional duct cleaning can improve indoor air quality by removing accumulated dust, debris, and contaminants from your HVAC system, though the extent of improvement depends on your specific situation and the condition of your ducts.

Duct cleaning is most beneficial when your ducts contain visible mold growth, excessive dust buildup, or debris from renovations. If you notice dust blowing out of vents, musty odors when the system runs, or family members experiencing increased allergy sym

Question 22

How long does duct cleaning take

Accepted Answer

Professional duct cleaning typically takes 2-4 hours for an average Ottawa home, depending on the size of your house, number of vents, and level of contamination in your ductwork.

For a standard 1,500-2,000 square foot home with 10-15 vents, most professional duct cleaning services will complete the job in about 3 hours. Larger homes with 20+ vents or homes that haven't been cleaned in many years may take closer to 4-5 hours. Smaller condos or townhomes might only need 2 hours.

The process inv

Question 23

What is included in professional duct cleaning

Accepted Answer

Professional duct cleaning involves a comprehensive cleaning of your entire HVAC air distribution system, including supply and return ducts, registers, grilles, diffusers, heat exchangers, cooling coils, drip pans, fan motor, and the air handling unit housing.

The process begins with a thorough inspection using cameras to assess the condition of your ductwork and identify problem areas like mold, excessive dust buildup, or debris. Professional technicians then use powerful truck-mounted or port

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